/* roulang page: index */
:root {
  --color-primary: #1B4332;
  --color-primary-light: #2D6A4F;
  --color-primary-dark: #0E2B21;
  --color-accent: #C9A227;
  --color-accent-hover: #B08D1E;
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-border: #E8E4DC;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-white: #FFF;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.12);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button, input, textarea { font-family: inherit; outline: none; border: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }

/* ===== Floating Dock Nav ===== */
.site-header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: calc(100% - 32px);
  max-width: 1200px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-pill);
  padding: 0 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}
.brand-icon::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-accent);
  border-radius: 4px;
  transform: rotate(45deg);
  display: block;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}
.nav-link:hover { color: var(--color-primary); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active {
  color: var(--color-primary);
  font-weight: 700;
}
.nav-link.active::after {
  transform: scaleX(1);
  background: var(--color-accent);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 24px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(27,67,50,0.25);
}
.nav-cta:active { transform: translateY(0); }

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: background 0.25s ease;
}
.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hamburger:hover { background: rgba(27,67,50,0.06); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 78px;
  left: 16px;
  right: 16px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
  padding: 20px;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}
.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mobile-menu a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  border-radius: 12px;
  transition: background 0.25s ease, color 0.25s ease;
}
.mobile-menu a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}
.mobile-menu a + a { margin-top: 4px; }
.mobile-menu .mobile-cta {
  background: var(--color-primary);
  color: white;
  text-align: center;
  border-radius: var(--radius-pill);
  margin-top: 10px;
}
.mobile-menu .mobile-cta:hover {
  background: var(--color-primary-light);
  color: white;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  padding: 160px 0 96px;
  background: linear-gradient(135deg, #1B4332 0%, #2D6A4F 100%);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  animation: heroPan 20s ease-in-out infinite alternate;
}
@keyframes heroPan {
  0% { transform: scale(1) translateY(0); }
  100% { transform: scale(1.05) translateY(-10px); }
}
.hero-ring {
  position: absolute;
  right: 6%;
  bottom: -15%;
  width: 420px;
  height: 420px;
  border: 2px solid rgba(201,162,39,0.30);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}
.hero-ring::before {
  content: "";
  position: absolute;
  inset: 18%;
  border: 1px solid rgba(201,162,39,0.18);
  border-radius: 50%;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 48px;
}
.hero-text { flex: 0 0 55%; max-width: 560px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: rgba(201,162,39,0.12);
  border: 1px solid rgba(201,162,39,0.35);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}
.hero-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  display: block;
}
.hero-title {
  font-size: 44px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.22;
  letter-spacing: 0.01em;
  margin-bottom: 18px;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 420px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(201,162,39,0.30);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,162,39,0.4);
}
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.6);
}
.btn-outline:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}
.btn-outline:active { transform: translateY(0); }
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex;
  flex-direction: column;
}
.hero-stat-number {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  font-feature-settings: "tnum";
  line-height: 1.1;
  margin-bottom: 4px;
}
.hero-stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}
.hero-image {
  flex: 0 0 40%;
  position: relative;
}
.hero-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 6px solid rgba(255,255,255,0.9);
  box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  position: relative;
  z-index: 2;
}
.hero-image-decor {
  position: absolute;
  right: -16px;
  bottom: -16px;
  width: 60%;
  height: 30%;
  background: var(--color-accent);
  border-radius: var(--radius-lg);
  opacity: 0.15;
  z-index: 1;
}

/* ===== Section titles ===== */
.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.section-label-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.06em;
}
.section-label-line {
  width: 40px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.5;
}
.section-label-text {
  font-size: 14px;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}
.section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 48px;
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(27,67,50,0.2);
}
.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(27,67,50,0.08), rgba(45,106,79,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: background 0.3s ease, transform 0.3s ease;
}
.service-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.3s ease;
}
.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}
.service-card:hover .service-icon svg {
  stroke: white;
}
.service-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.service-name::after {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  opacity: 0.7;
}
.service-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Stats dark band ===== */
.stats-section {
  background: linear-gradient(160deg, #0E2B21, #1B4332);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(circle, rgba(201,162,39,0.06), transparent 70%);
  pointer-events: none;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-badge {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: background 0.25s ease, transform 0.25s ease;
  position: relative;
}
.stat-badge::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.stat-badge:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}
.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--color-accent);
  font-feature-settings: "tnum";
  line-height: 1.1;
  display: block;
  margin-bottom: 6px;
  background: linear-gradient(180deg, #E8C76A, #C9A227);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
}
.stats-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-white);
  text-align: center;
  margin-bottom: 48px;
}

/* ===== Cases ===== */
.case-block {
  display: flex;
  align-items: center;
  gap: 64px;
  margin-bottom: 80px;
}
.case-block:last-child { margin-bottom: 0; }
.case-block:nth-child(even) { flex-direction: row-reverse; }
.case-image {
  flex: 0 0 45%;
  position: relative;
}
.case-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.case-block:hover .case-image img {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}
.case-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-accent);
  color: white;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  z-index: 2;
}
.case-text { flex: 1; }
.case-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.case-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 14px;
}
.case-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 18px;
}
.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.case-tag-item {
  font-size: 12px;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 500;
}
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap 0.25s ease, color 0.25s ease;
}
.case-link:hover {
  gap: 14px;
  color: var(--color-primary-light);
}
.case-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease;
}

/* ===== News ===== */
.news-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(27,67,50,0.15);
}
.news-card-link { display: block; height: 100%; }
.news-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.05);
}
.news-body {
  padding: 24px;
}
.news-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(201,162,39,0.08);
  border: 1px solid rgba(201,162,39,0.15);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
}
.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.25s ease;
}
.news-card:hover .news-title { color: var(--color-primary); }
.news-excerpt {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.news-date {
  font-size: 12px;
  color: #A0A5AC;
  display: flex;
  align-items: center;
  gap: 6px;
}
.news-date::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
}
.news-empty {
  grid-column: 1 / -1;
  background: var(--color-bg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: 64px 32px;
  text-align: center;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.news-empty p {
  font-size: 15px;
}
.news-empty-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: var(--shadow-card);
}

/* ===== Solutions ===== */
.solutions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.solution-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.solution-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-bg);
  position: relative;
}
.solution-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.solution-list {
  margin-bottom: 28px;
}
.solution-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.solution-list li::before {
  content: "✓";
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  background: rgba(27,67,50,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 2px;
}
.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent-hover);
  transition: gap 0.25s ease, color 0.25s ease;
}
.solution-link:hover {
  gap: 14px;
  color: var(--color-primary);
}
.solution-link svg {
  width: 16px;
  height: 16px;
}
.solution-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  min-height: 320px;
  background: linear-gradient(135deg, #0E2B21, #2D6A4F);
  display: flex;
  align-items: flex-end;
  padding: 32px;
}
.solution-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}
.solution-media-content {
  position: relative;
  z-index: 2;
}
.solution-media-title {
  color: white;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.solution-media-desc {
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  line-height: 1.7;
  max-width: 280px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  cursor: pointer;
  transition: padding 0.25s ease;
}
.faq-question:hover .faq-q-text {
  color: var(--color-primary);
}
.faq-q-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  transition: color 0.25s ease;
  line-height: 1.5;
}
.faq-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.35s ease, background 0.35s ease;
  position: relative;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-primary);
  border-radius: 2px;
  transition: background 0.3s ease;
}
.faq-icon::before {
  width: 12px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 12px;
  transition: opacity 0.3s ease, transform 0.35s ease;
}
.faq-item.active .faq-icon {
  background: var(--color-accent);
}
.faq-item.active .faq-icon::before {
  background: white;
}
.faq-item.active .faq-icon::after {
  opacity: 0;
  transform: rotate(90deg);
  background: white;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s ease, opacity 0.35s ease, padding 0.35s ease;
}
.faq-item.active .faq-answer {
  opacity: 1;
  padding-bottom: 22px;
}
.faq-a-text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.75;
  padding: 0 48px 0 4px;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: flex-start;
}
.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-info-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(27,67,50,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}
.contact-info-item:hover .contact-info-icon {
  background: rgba(27,67,50,0.12);
}
.contact-info-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-primary);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.contact-info-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 3px;
}
.contact-info-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}
.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
}
.contact-form-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  height: 48px;
  border: 1px solid #D6D1C7;
  border-radius: 12px;
  padding: 0 16px;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.form-group textarea {
  height: 140px;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.6;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #B0B5BC;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(201,162,39,0.2);
}
.form-submit {
  width: 100%;
  height: 48px;
  background: var(--color-accent);
  color: white;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.form-submit:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201,162,39,0.3);
}
.form-submit:active { transform: translateY(0); }

/* ===== Footer ===== */
.site-footer {
  background: #0E2B21;
  color: rgba(255,255,255,0.7);
  position: relative;
}
.site-footer::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding: 64px 0;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}
.footer-brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2D6A4F, #1B4332);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}
.footer-brand-icon::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-accent);
  border-radius: 3px;
  transform: rotate(45deg);
  display: block;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.25s ease;
  position: relative;
  padding-bottom: 2px;
}
.footer-links a:hover {
  color: white;
}
.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.footer-links a:hover::after {
  transform: scaleX(1);
}
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
  margin-bottom: 12px;
}
.footer-contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  stroke: rgba(255,255,255,0.4);
  margin-top: 3px;
}
.footer-bottom {
  background: #081A14;
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-domain {
  color: rgba(255,255,255,0.55);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .hero { padding: 140px 0 80px; min-height: auto; }
  .hero-title { font-size: 38px; }
  .hero-image { flex-basis: 42%; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .case-block { gap: 32px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { gap: 24px; }
}

@media (max-width: 767px) {
  .section-pad { padding: 64px 0; }
  .container { padding: 0 16px; }
  .site-header { padding: 0 20px; }
  .nav-menu { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }
  .hero { padding: 120px 0 64px; }
  .hero-inner { flex-direction: column; }
  .hero-text { flex: 1 1 auto; max-width: 100%; }
  .hero-title { font-size: 30px; line-height: 1.3; }
  .hero-subtitle { font-size: 16px; margin-bottom: 24px; }
  .hero-actions { margin-bottom: 32px; }
  .hero-image { display: none; }
  .hero-stats { gap: 24px; }
  .hero-stat-number { font-size: 26px; }
  .section-title { font-size: 28px; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-number { font-size: 32px; }
  .case-block { flex-direction: column !important; gap: 24px; }
  .case-image { flex: 1 1 auto; width: 100%; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .contact-form-wrap { padding: 24px; }
  .solution-card { padding: 24px; }
  .hero-ring { width: 200px; height: 200px; bottom: -5%; right: 2%; }
  .faq-a-text { padding: 0 4px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 26px; }
  .hero-stats { gap: 16px; flex-direction: column; }
  .btn { padding: 12px 24px; font-size: 14px; }
  .section-label-number { font-size: 13px; }
  .stats-grid { gap: 12px; }
  .stat-badge { padding: 18px 12px; }
  .stat-number { font-size: 28px; }
  .case-tags { gap: 6px; }
  .case-tag-item { font-size: 11px; padding: 3px 10px; }
}

/* roulang page: article */
:root {
  --color-primary: #1B4332;
  --color-primary-light: #2D6A4F;
  --color-primary-dark: #0E2B21;
  --color-accent: #C9A227;
  --color-accent-hover: #B08D1E;
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-border: #E8E4DC;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-white: #FFFFFF;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.12);
  --transition: 0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.6;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--transition);}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea{font-family:inherit;}
.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ===== 浮动导航 Dock ===== */
.site-nav{
  position:fixed;top:14px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:1200px;
  background:rgba(255,255,255,0.86);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(232,228,220,0.6);
  border-radius:999px;padding:0 28px;height:60px;
  display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 2px 12px rgba(0,0,0,0.06);z-index:1000;
  transition:box-shadow var(--transition),background var(--transition);
}
.site-nav.scrolled{background:rgba(255,255,255,0.96);box-shadow:0 4px 20px rgba(0,0,0,0.08);}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--color-primary);letter-spacing:0.02em;white-space:nowrap;}
.logo-icon{width:34px;height:34px;flex-shrink:0;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-light));border-radius:10px;display:flex;align-items:center;justify-content:center;position:relative;}
.logo-icon::before{content:'';width:14px;height:14px;border:2.5px solid var(--color-accent);border-radius:3px;transform:rotate(45deg);}
.nav-menu{display:flex;align-items:center;gap:32px;}
.nav-link{font-size:15px;font-weight:500;color:var(--color-text);position:relative;padding:6px 2px;line-height:1.4;}
.nav-link::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--color-accent);border-radius:2px;transform:scaleX(0);transform-origin:left center;transition:transform var(--transition);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link:hover,.nav-link.active{color:var(--color-primary);font-weight:700;}
.nav-cta{background:var(--color-primary);color:#fff;border-radius:999px;padding:10px 24px;font-size:14px;font-weight:600;transition:background var(--transition),transform var(--transition),box-shadow var(--transition);white-space:nowrap;}
.nav-cta:hover{background:var(--color-primary-light);transform:translateY(-1px);box-shadow:0 4px 14px rgba(27,67,50,0.25);}
.mobile-toggle{display:none;width:42px;height:42px;border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:transparent;}
.mobile-toggle span{display:block;width:20px;height:2px;background:var(--color-primary);border-radius:2px;transition:transform var(--transition),opacity var(--transition);}
.mobile-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.mobile-toggle.active span:nth-child(2){opacity:0;}
.mobile-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{
  position:fixed;top:84px;left:16px;right:16px;
  background:var(--color-white);border-radius:24px;
  box-shadow:0 20px 60px rgba(0,0,0,0.15);
  padding:32px 28px;z-index:999;
  display:none;opacity:0;transform:translateY(-12px);
  transition:opacity 0.3s ease,transform 0.3s ease;
}
.mobile-panel.open{display:block;opacity:1;transform:translateY(0);}
.mobile-panel .mobile-links{display:flex;flex-direction:column;gap:20px;}
.mobile-panel .mobile-links a{font-size:17px;font-weight:600;color:var(--color-text);padding:4px 0;border-bottom:1px solid var(--color-border);}
.mobile-panel .mobile-links a:last-child{border-bottom:none;}
.mobile-panel .mobile-links a.m-active{color:var(--color-primary);}
.mobile-panel .mobile-cta{display:block;text-align:center;background:var(--color-primary);color:#fff;border-radius:999px;padding:12px 24px;font-weight:600;margin-top:24px;transition:background var(--transition);}
.mobile-panel .mobile-cta:hover{background:var(--color-primary-light);}

/* ===== 文章 Banner ===== */
.article-banner{
  position:relative;
  background:
    linear-gradient(135deg,rgba(27,67,50,0.94) 0%,rgba(45,106,79,0.90) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:160px 0 72px;color:#fff;
  overflow:hidden;
}
.article-banner::after{
  content:'';position:absolute;right:-60px;bottom:-80px;
  width:280px;height:280px;
  border:2px solid rgba(201,162,39,0.3);
  border-radius:50%;pointer-events:none;
}
.article-banner .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:rgba(255,255,255,0.7);
  margin-bottom:24px;
}
.breadcrumb a{color:rgba(255,255,255,0.7);transition:color var(--transition);}
.breadcrumb a:hover{color:var(--color-accent);}
.breadcrumb .sep{color:rgba(255,255,255,0.4);}
.breadcrumb .current{color:rgba(255,255,255,0.9);max-width:280px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.article-banner h1{
  font-size:40px;font-weight:800;line-height:1.3;
  max-width:800px;letter-spacing:0.01em;margin-bottom:20px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:20px;
  font-size:14px;color:rgba(255,255,255,0.75);
}
.article-meta i{color:var(--color-accent);margin-right:6px;}
.article-meta .sep{color:rgba(255,255,255,0.3);}

/* ===== 文章正文 ===== */
.article-main{padding:64px 0 16px;}
.article-content-card{
  background:var(--color-surface);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  border:1px solid var(--color-border);
  padding:56px 48px;
  max-width:920px;margin:0 auto;
}
.article-body{max-width:720px;margin:0 auto;}
.article-body > p{font-size:16px;line-height:1.85;color:#2D2D2D;margin-bottom:24px;}
.article-body h2{
  font-size:26px;font-weight:700;color:var(--color-primary);
  margin:40px 0 16px;line-height:1.4;
  padding-left:16px;border-left:4px solid var(--color-accent);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--color-primary);margin:32px 0 12px;line-height:1.4;}
.article-body ul,.article-body ol{margin-bottom:24px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{font-size:16px;line-height:1.7;color:#2D2D2D;margin-bottom:8px;}
.article-body blockquote{
  border-left:4px solid var(--color-accent);
  background:rgba(201,162,39,0.06);
  padding:16px 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom:24px;color:var(--color-text-muted);font-style:italic;
}
.article-body img{border-radius:var(--radius-md);border:1px solid var(--color-border);margin:32px auto;}
.article-body table{width:100%;border-collapse:collapse;margin-bottom:24px;font-size:15px;}
.article-body th{background:var(--color-primary);color:#fff;font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border:1px solid var(--color-border);}
.article-body td{background:#fff;}
.article-body a{color:var(--color-primary-light);text-decoration:underline;text-underline-offset:2px;}

/* 内容未找到 */
.article-not-found{text-align:center;padding:100px 30px;}
.article-not-found i{font-size:48px;color:var(--color-accent);margin-bottom:20px;}
.article-not-found p{font-size:18px;color:var(--color-text-muted);margin-bottom:24px;}
.article-not-found a{
  display:inline-block;background:var(--color-primary);color:#fff;
  padding:12px 32px;border-radius:999px;font-size:15px;font-weight:600;
  transition:background var(--transition),transform var(--transition);
}
.article-not-found a:hover{background:var(--color-primary-light);transform:translateY(-2px);}

/* ===== 相关推荐 ===== */
.related-section{padding:64px 0 16px;}
.related-section .container{max-width:920px;}
.related-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.related-header h2{font-size:26px;font-weight:700;color:var(--color-primary);white-space:nowrap;}
.related-line{flex:1;height:1px;background:var(--color-border);margin-left:24px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  background:var(--color-surface);border-radius:var(--radius-md);
  border:1px solid var(--color-border);overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.related-card .card-img{aspect-ratio:16/9;overflow:hidden;}
.related-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease;}
.related-card:hover .card-img img{transform:scale(1.04);}
.related-card .card-body{padding:20px;}
.related-card .card-title{
  font-size:16px;font-weight:600;color:var(--color-text);line-height:1.4;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card .card-date{font-size:13px;color:var(--color-text-muted);}

/* ===== 返回入口 ===== */
.back-entry{padding:32px 0 64px;text-align:center;}
.back-entry .btn-back{
  display:inline-block;padding:12px 40px;border-radius:999px;
  border:1.5px solid var(--color-primary);color:var(--color-primary);
  font-size:15px;font-weight:600;
  transition:all var(--transition);
}
.back-entry .btn-back:hover{background:var(--color-primary);color:#fff;}

/* ===== CTA ===== */
.cta-section{
  background:linear-gradient(160deg,var(--color-primary-dark),var(--color-primary));
  padding:80px 0;position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;top:-120px;right:-120px;
  width:360px;height:360px;
  border:2px solid rgba(201,162,39,0.2);border-radius:50%;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;position:relative;z-index:1;}
.cta-text h2{font-size:30px;font-weight:700;color:#fff;margin-bottom:12px;}
.cta-text p{color:rgba(255,255,255,0.7);font-size:15px;line-height:1.7;max-width:520px;}
.cta-btn{
  background:var(--color-accent);color:var(--color-white);
  padding:14px 36px;border-radius:999px;font-size:16px;font-weight:700;
  white-space:nowrap;
  transition:background var(--transition),transform var(--transition),box-shadow var(--transition);
}
.cta-btn:hover{background:var(--color-accent-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,162,39,0.35);}

/* ===== 页脚 ===== */
.site-footer{background:var(--color-primary-dark);color:#fff;}
.footer-top{border-top:2px solid var(--color-accent);padding:64px 0 48px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:56px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand-icon{width:28px;height:28px;border:2px solid var(--color-accent);border-radius:8px;display:inline-block;transform:rotate(45deg);flex-shrink:0;}
.footer-desc{font-size:14px;line-height:1.7;color:rgba(255,255,255,0.65);max-width:280px;}
.footer-col-title{font-size:14px;font-weight:600;color:var(--color-accent);margin-bottom:20px;letter-spacing:0.05em;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.7);position:relative;padding-bottom:2px;}
.footer-links a::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--color-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--transition);}
.footer-links a:hover{color:#fff;}
.footer-links a:hover::after{transform:scaleX(1);}
.footer-contact-item{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,0.7);margin-bottom:14px;line-height:1.5;}
.footer-contact-item svg{width:18px;height:18px;flex-shrink:0;color:var(--color-accent);margin-top:2px;}
.footer-bottom{background:rgba(8,26,20,0.9);padding:20px 0;}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-bottom span{font-size:14px;color:rgba(255,255,255,0.55);}
.footer-domain{color:rgba(201,162,39,0.8);}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .article-content-card{padding:40px 32px;}
  .article-banner h1{font-size:32px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .site-nav{padding:0 16px;}
  .nav-logo{font-size:16px;gap:8px;}
  .logo-icon{width:30px;height:30px;}
  .logo-icon::before{width:12px;height:12px;}
  .nav-menu{display:none;}
  .nav-cta{display:inline-flex;padding:8px 16px;font-size:13px;}
  .mobile-toggle{display:flex;}
  .article-banner{padding:120px 0 48px;}
  .article-banner h1{font-size:28px;line-height:1.35;}
  .article-meta{gap:12px;font-size:13px;}
  .article-main{padding:40px 0 8px;}
  .article-content-card{padding:28px 20px;border-radius:16px;}
  .article-body > p{font-size:15px;line-height:1.8;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;text-align:center;gap:32px;}
  .cta-text p{margin:0 auto;}
  .cta-section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom .container{flex-direction:column;text-align:center;}
  .related-header{flex-direction:column;align-items:flex-start;gap:12px;}
  .related-line{width:100%;margin-left:0;}
}
@media (max-width:480px){
  .nav-cta{display:none;}
  .article-banner h1{font-size:24px;}
  .breadcrumb{font-size:13px;}
  .breadcrumb .current{max-width:160px;}
  .cta-text h2{font-size:24px;}
}

/* roulang page: category1 */
:root {
    --color-primary: #1B4332;
    --color-primary-light: #2D6A4F;
    --color-primary-dark: #0E2B21;
    --color-accent: #C9A227;
    --color-accent-hover: #B08D1E;
    --color-bg: #F7F5F0;
    --color-surface: #FFFFFF;
    --color-border: #E8E4DC;
    --color-text: #1F2937;
    --color-text-muted: #6B7280;
    --color-white: #FFFFFF;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-pill: 999px;
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
    --transition: 0.25s ease;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
  }

  button,
  input,
  textarea {
    font: inherit;
    outline: none;
  }

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

  section[id] {
    scroll-margin-top: 100px;
  }

  /* ===== 浮动导航 Dock ===== */
  .site-header {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0 16px;
    pointer-events: none;
  }

  .nav-dock {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    height: 60px;
    padding: 0 28px;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-pill);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    pointer-events: auto;
    transition: background var(--transition), box-shadow var(--transition);
  }

  .nav-dock.scrolled {
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  }

  .brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
  }

  .brand-logo-mark {
    width: 18px;
    height: 18px;
    border-radius: 5px;
    background: linear-gradient(135deg, var(--color-accent), #E6C65C);
    transform: rotate(45deg);
    position: relative;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(201, 162, 39, 0.35);
  }

  .brand-logo-mark::after {
    content: '';
    position: absolute;
    inset: 4px;
    border: 1.5px solid #fff;
    border-radius: 2px;
    opacity: 0.8;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .nav-link {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    padding: 6px 2px;
    transition: color var(--transition);
  }

  .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
  }

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

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

  .nav-cta {
    padding: 9px 22px;
    border-radius: var(--radius-pill);
    background: var(--color-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: background var(--transition), transform var(--transition);
    white-space: nowrap;
  }

  .nav-cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
  }

  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: 0;
    background: transparent;
    cursor: pointer;
    padding: 8px;
    border-radius: 12px;
  }

  .nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-primary);
    margin: 4px auto;
    border-radius: 2px;
    transition: all var(--transition);
  }

  /* ===== Hero 首屏 ===== */
  .page-hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 180px 0 96px;
    overflow: hidden;
  }

  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    opacity: 0.16;
  }

  .page-hero::after {
    content: '';
    position: absolute;
    right: -120px;
    bottom: -120px;
    width: 480px;
    height: 480px;
    border: 1.5px solid rgba(201, 162, 39, 0.3);
    border-radius: 50%;
    box-shadow: 0 0 0 48px rgba(201, 162, 39, 0.05), 0 0 0 96px rgba(201, 162, 39, 0.03);
    z-index: 1;
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 460px;
    gap: 64px;
    align-items: center;
  }

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

  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    color: #F0D77A;
    margin-bottom: 24px;
  }

  .hero-tag-line {
    width: 32px;
    height: 1px;
    background: var(--color-accent);
    display: inline-block;
  }

  .page-hero h1 {
    font-size: clamp(40px, 5vw, 56px);
    font-weight: 800;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: 1px;
  }

  .hero-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.82);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 480px;
  }

  .hero-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
  }

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

  .btn-accent:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 162, 39, 0.3);
  }

  .btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
  }

  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
  }

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

  .btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
  }

  .hero-side {
    position: relative;
  }

  .hero-side img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 10px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  }

  .hero-side-bar {
    position: absolute;
    left: -18px;
    bottom: -18px;
    width: 80px;
    height: 12px;
    background: var(--color-accent);
    border-radius: var(--radius-pill);
    z-index: -1;
  }

  .hero-stats {
    position: relative;
    z-index: 2;
    margin-top: 64px;
  }

  .hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 640px;
  }

  .stat-pill {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    backdrop-filter: blur(4px);
  }

  .stat-pill .stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-accent);
    font-feature-settings: "tnum";
    line-height: 1.2;
  }

  .stat-pill .stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.72);
  }

  /* ===== 通用板块头 ===== */
  .section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--color-accent);
    text-transform: uppercase;
  }

  .section-tag::before,
  .section-tag::after {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--color-accent);
  }

  .section-head h2 {
    font-size: clamp(28px, 3vw, 38px);
    font-weight: 700;
    line-height: 1.3;
    margin-top: 14px;
    color: var(--color-text);
  }

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

  /* ===== 产品大区块 ===== */
  .product-section {
    padding: 96px 0;
  }

  .product-section-alt {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }

  .product-block {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 64px;
    align-items: center;
  }

  .product-block-reverse .product-media {
    order: 2;
  }

  .product-block-reverse .product-content {
    order: 1;
  }

  .product-media {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
  }

  .product-media img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }

  .product-content .product-subtitle {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 1px;
    margin-bottom: 8px;
  }

  .product-content h3 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
  }

  .product-content p {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.85;
    margin: 20px 0 24px;
  }

  .tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
  }

  .tag {
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    background: rgba(27, 67, 50, 0.06);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid rgba(27, 67, 50, 0.12);
  }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 15px;
    transition: gap var(--transition);
  }

  .link-arrow svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition);
  }

  .link-arrow:hover svg {
    transform: translateX(4px);
  }

  /* ===== 数据优势 ===== */
  .stats-section {
    background: linear-gradient(160deg, var(--color-primary-dark), var(--color-primary));
    padding: 96px 0;
  }

  .section-head.light h2 {
    color: #fff;
  }

  .section-head.light .section-desc {
    color: rgba(255, 255, 255, 0.7);
  }

  .section-tag.gold {
    color: var(--color-accent);
  }

  .section-tag.gold::before,
  .section-tag.gold::after {
    background: var(--color-accent);
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .stat-badge {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
    transition: background var(--transition), transform var(--transition);
  }

  .stat-badge:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
  }

  .stat-badge .stat-num {
    font-size: 42px;
    font-weight: 800;
    color: var(--color-accent);
    font-feature-settings: "tnum";
    line-height: 1.1;
  }

  .stat-badge .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
  }

  /* ===== 适用场景 ===== */
  .scenario-section {
    padding: 96px 0;
  }

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

  .scenario-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
  }

  .scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(27, 67, 50, 0.25);
  }

  .scenario-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(27, 67, 50, 0.1), rgba(45, 106, 79, 0.16));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 20px;
  }

  .scenario-icon svg {
    width: 26px;
    height: 26px;
  }

  .scenario-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
  }

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

  /* ===== 企业介绍引导 ===== */
  .guide-section {
    padding-bottom: 96px;
  }

  .company-guide {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-card);
  }

  .company-guide h3 {
    font-size: 22px;
    font-weight: 700;
    margin-top: 12px;
    color: var(--color-text);
  }

  .company-guide p {
    font-size: 15px;
    color: var(--color-text-muted);
    margin-top: 6px;
  }

  /* ===== FAQ ===== */
  .faq-section {
    padding: 96px 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }

  .faq-list {
    max-width: 820px;
    margin: 0 auto;
  }

  .faq-item {
    border-bottom: 1px solid var(--color-border);
  }

  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 0;
    background: transparent;
    border: 0;
    cursor: pointer;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    transition: color var(--transition);
  }

  .faq-question:hover {
    color: var(--color-primary);
  }

  .faq-icon {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-left: 16px;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: '';
    position: absolute;
    background: var(--color-accent);
    border-radius: 2px;
    transition: transform 0.35s ease;
  }

  .faq-icon::before {
    width: 18px;
    height: 2px;
    top: 8px;
    left: 0;
  }

  .faq-icon::after {
    width: 2px;
    height: 18px;
    left: 8px;
    top: 0;
  }

  .faq-item.active .faq-icon::after {
    transform: rotate(90deg);
  }

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

  .faq-item.active .faq-answer {
    max-height: 500px;
    opacity: 1;
  }

  .faq-answer-inner {
    padding: 0 0 24px;
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.8;
  }

  /* ===== 联系 CTA ===== */
  .contact-section {
    padding: 96px 0 120px;
  }

  .contact-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .contact-info {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    padding: 48px;
  }

  .contact-info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
  }

  .contact-info>p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    margin-bottom: 32px;
  }

  .contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.88);
  }

  .contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
  }

  .contact-form-wrap {
    padding: 48px;
  }

  .contact-form .form-group {
    margin-bottom: 20px;
  }

  .contact-form label {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 6px;
  }

  .contact-form input,
  .contact-form textarea {
    width: 100%;
    height: 48px;
    border: 1px solid #D6D1C7;
    border-radius: 12px;
    padding: 0 16px;
    background: #fff;
    color: var(--color-text);
    transition: all var(--transition);
  }

  .contact-form textarea {
    height: 140px;
    padding: 14px 16px;
    resize: vertical;
  }

  .contact-form input:focus,
  .contact-form textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.2);
  }

  .contact-form button {
    width: 100%;
    height: 48px;
    background: var(--color-accent);
    color: #fff;
    border: 0;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
  }

  .contact-form button:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.75);
    border-top: 2px solid var(--color-accent);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding: 64px 0 48px;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
  }

  .footer-brand-icon {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--color-accent), #E6C65C);
    transform: rotate(45deg);
    flex-shrink: 0;
    position: relative;
  }

  .footer-brand-icon::after {
    content: '';
    position: absolute;
    inset: 5px;
    border: 1.5px solid #fff;
    border-radius: 2px;
    opacity: 0.8;
  }

  .footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
    margin-top: 16px;
    max-width: 320px;
  }

  .footer-col-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 18px;
    letter-spacing: 1px;
  }

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

  .footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition);
  }

  .footer-links a:hover {
    color: #fff;
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-underline-offset: 4px;
  }

  .footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 14px;
    line-height: 1.6;
  }

  .footer-contact-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
  }

  .footer-bottom {
    background: #081A14;
    padding: 20px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
  }

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

  .footer-domain {
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1023px) {
    .hero-inner {
      grid-template-columns: 1fr 360px;
      gap: 40px;
    }

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

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

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

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

  @media (max-width: 767px) {
    .container {
      padding: 0 16px;
    }

    .nav-dock {
      padding: 0 16px;
    }

    .nav-toggle {
      display: block;
    }

    .nav-menu {
      position: absolute;
      top: calc(100% + 10px);
      left: 0;
      right: 0;
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-hover);
      flex-direction: column;
      align-items: flex-start;
      gap: 20px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(-8px);
      transition: all var(--transition);
    }

    .nav-menu.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .page-hero {
      padding: 140px 0 64px;
    }

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

    .hero-side {
      display: none;
    }

    .hero-stats-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }

    .stat-pill {
      padding: 14px 12px;
    }

    .stat-pill .stat-num {
      font-size: 22px;
    }

    .stat-pill .stat-label {
      font-size: 12px;
    }

    .product-section,
    .stats-section,
    .scenario-section,
    .faq-section,
    .contact-section {
      padding: 64px 0;
    }

    .guide-section {
      padding-bottom: 64px;
    }

    .product-block,
    .product-block-reverse {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .product-block-reverse .product-media {
      order: 1;
    }

    .product-block-reverse .product-content {
      order: 2;
    }

    .contact-card {
      grid-template-columns: 1fr;
    }

    .contact-info,
    .contact-form-wrap {
      padding: 32px 24px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 36px;
      padding: 48px 0 36px;
    }

    .company-guide {
      padding: 28px 24px;
      flex-direction: column;
      align-items: flex-start;
    }
  }

  @media (max-width: 520px) {
    .scenario-grid {
      grid-template-columns: 1fr;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .stat-badge {
      padding: 20px 16px;
    }

    .stat-badge .stat-num {
      font-size: 32px;
    }

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

    .hero-cta .btn {
      justify-content: center;
    }

    .brand-logo {
      font-size: 15px;
    }

    .nav-cta {
      padding: 8px 16px;
      font-size: 13px;
    }

    .footer-bottom .container {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
  }

/* roulang page: category2 */
:root {
    --color-primary: #1B4332;
    --color-primary-light: #2D6A4F;
    --color-primary-dark: #0E2B21;
    --color-accent: #C9A227;
    --color-accent-hover: #B08D1E;
    --color-bg: #F7F5F0;
    --color-surface: #FFFFFF;
    --color-border: #E8E4DC;
    --color-text: #1F2937;
    --color-text-muted: #6B7280;
    --color-white: #FFFFFF;
    --color-gold-light: rgba(201, 162, 39, 0.15);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
    --transition: 0.25s ease;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

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

  .section {
    padding: 96px 0;
  }

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

  .section-dark {
    background: linear-gradient(160deg, #0E2B21, #1B4332);
    color: var(--color-white);
  }

  /* ===== 浮动导航 Header ===== */
  .site-header {
    position: fixed;
    top: 14px;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 20px;
  }

  .site-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 60px;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 999px;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.65);
  }

  .site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--color-primary);
    white-space: nowrap;
  }

  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    padding: 6px 2px;
    position: relative;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
  }

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

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

  .header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: 999px;
    transition: background var(--transition), transform var(--transition);
  }

  .header-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
  }

  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.25s ease;
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    margin: 4px auto;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
  }

  .nav-mobile-panel {
    display: none;
    position: absolute;
    top: 72px;
    left: 20px;
    right: 20px;
    max-width: 420px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--color-border);
  }

  .nav-mobile-panel.open {
    display: block;
  }

  .nav-mobile-link {
    display: block;
    padding: 14px 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    border-radius: 12px;
  }

  .nav-mobile-link:hover {
    background: var(--color-bg);
  }

  .nav-mobile-link.active {
    color: var(--color-primary);
    background: var(--color-gold-light);
  }

  .nav-mobile-cta {
    display: block;
    text-align: center;
    margin-top: 12px;
    padding: 12px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 12px;
    font-weight: 600;
  }

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

  /* ===== Hero ===== */
  .page-hero {
    background-image: linear-gradient(135deg, rgba(27, 67, 50, 0.92) 0%, rgba(45, 106, 79, 0.84) 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 180px 0 110px;
    color: var(--color-white);
    min-height: 640px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 360px;
    height: 360px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    pointer-events: none;
  }

  .hero-label {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    color: #E6C65C;
    text-transform: uppercase;
    margin-bottom: 24px;
  }

  .hero-label-line {
    width: 36px;
    height: 1px;
    background: var(--color-accent);
    display: inline-block;
  }

  .hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-white);
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 20px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 12px;
  }

  .hero-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.72);
    max-width: 480px;
    line-height: 1.8;
  }

  .hero-image-wrap {
    position: relative;
  }

  .hero-image {
    width: 100%;
    max-width: 460px;
    border-radius: 20px;
    border: 8px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
    aspect-ratio: 4 / 3;
    object-fit: cover;
    margin: 0 auto;
    position: relative;
    z-index: 2;
  }

  .hero-image-accent {
    position: absolute;
    bottom: -18px;
    right: 10px;
    width: 140px;
    height: 12px;
    background: var(--color-accent);
    border-radius: 999px;
    opacity: 0.8;
    z-index: 1;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    padding: 14px 32px;
    border-radius: 999px;
    transition: all var(--transition);
    border: 1.5px solid transparent;
    cursor: pointer;
  }

  .btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
  }

  .btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 162, 39, 0.35);
  }

  .btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.7);
    color: var(--color-white);
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--color-white);
    transform: translateY(-2px);
  }

  .btn-block {
    width: 100%;
  }

  /* ===== Section Head ===== */
  .section-head {
    margin-bottom: 48px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    position: relative;
  }

  .section-title {
    margin-top: 12px;
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.5px;
  }

  .section-desc {
    margin-top: 12px;
    font-size: 16px;
    color: var(--color-text-muted);
    max-width: 640px;
  }

  .section-head.text-center .section-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .section-dark .section-title {
    color: var(--color-white);
  }

  .section-dark .section-desc {
    color: rgba(255, 255, 255, 0.75);
  }

  /* ===== Card ===== */
  .card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  }

  .card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(27, 67, 50, 0.25);
  }

  /* ===== 资讯服务价值 ===== */
  .feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  }

  .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(201, 162, 39, 0.4);
  }

  .feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(27, 67, 50, 0.12), rgba(45, 106, 79, 0.18));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 20px;
    transition: background 0.25s ease;
  }

  .feature-card:hover .feature-icon {
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.22), rgba(45, 106, 79, 0.16));
  }

  .feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
  }

  .feature-desc {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
  }

  /* ===== Timeline ===== */
  .timeline {
    position: relative;
    margin-left: 28px;
  }

  .timeline::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-accent), rgba(201, 162, 39, 0.15));
  }

  .timeline-item {
    position: relative;
    padding-bottom: 36px;
  }

  .timeline-item:last-child {
    padding-bottom: 0;
  }

  .timeline-marker {
    position: absolute;
    left: -34px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.22);
  }

  .timeline-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

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

  .timeline-date {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
  }

  .timeline-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
    line-height: 1.4;
  }

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

  /* ===== Stat Badge ===== */
  .stat-badge {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: background 0.35s ease, transform 0.35s ease;
  }

  .stat-badge:hover {
    background: rgba(255, 255, 255, 0.13);
    transform: translateY(-3px);
  }

  .stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-accent);
    font-feature-settings: "tnum";
    line-height: 1.2;
    letter-spacing: -1px;
  }

  .stat-plus {
    font-size: 28px;
    font-weight: 700;
    margin-left: 2px;
  }

  .stat-label {
    margin-top: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 0.5px;
  }

  /* ===== 获取资讯 Step ===== */
  .step-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

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

  .step-num {
    font-size: 42px;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--color-accent);
    line-height: 1;
    margin-bottom: 16px;
    font-feature-settings: "tnum";
  }

  .step-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
  }

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

  /* ===== FAQ ===== */
  .faq-list {
    border-top: 1px solid var(--color-border);
  }

  .faq-item {
    border-bottom: 1px solid var(--color-border);
  }

  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 22px 4px;
    background: transparent;
    border: none;
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    text-align: left;
    transition: color 0.25s ease;
  }

  .faq-question:hover {
    color: var(--color-primary);
  }

  .faq-icon {
    width: 30px;
    height: 30px;
    position: relative;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--color-gold-light);
    transition: background 0.25s ease;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--color-accent);
    border-radius: 2px;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }

  .faq-icon::before {
    width: 12px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .faq-icon::after {
    width: 2px;
    height: 12px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .faq-item.open .faq-icon {
    background: var(--color-accent);
  }

  .faq-item.open .faq-icon::before {
    background: var(--color-white);
  }

  .faq-item.open .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
    background: var(--color-white);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.4s ease, padding 0.4s ease;
    padding: 0 4px;
  }

  .faq-item.open .faq-answer {
    max-height: 320px;
    opacity: 1;
    padding: 0 4px 22px;
  }

  .faq-answer p {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.75;
  }

  /* ===== 联系 CTA ===== */
  .contact-wrap {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 48px;
  }

  .contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
  }

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

  .contact-info-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-gold-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
  }

  .contact-info-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 2px;
  }

  .contact-info-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
  }

  .form-group {
    margin-bottom: 20px;
  }

  .form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 8px;
  }

  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    border: 1px solid #D6D1C7;
    border-radius: var(--radius-sm);
    background: var(--color-white);
    transition: border-color var(--transition), box-shadow var(--transition);
  }

  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.2);
  }

  .form-group textarea {
    min-height: 120px;
    resize: vertical;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.85);
  }

  .site-footer .footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
  }

  .footer-brand-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-accent), #E8C85A);
    display: inline-block;
    position: relative;
    flex-shrink: 0;
  }

  .footer-brand-icon::after {
    content: "";
    position: absolute;
    inset: 6px;
    border-radius: 4px;
    border: 2px solid var(--color-primary-dark);
  }

  .footer-desc {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.65);
    max-width: 320px;
  }

  .footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
  }

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

  .footer-links li {
    margin-bottom: 12px;
  }

  .footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    position: relative;
    padding: 2px 0;
  }

  .footer-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.25s ease;
  }

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

  .footer-links a:hover::after {
    width: 100%;
  }

  .footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
  }

  .footer-contact-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 3px;
  }

  .footer-bottom {
    background: #081A14;
    padding: 20px 0;
    margin-top: 64px;
  }

  .footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
  }

  .footer-domain {
    color: rgba(255, 255, 255, 0.45);
  }

  /* ===== 响应式 ===== */
  @media (max-width: 1023px) {
    .section {
      padding: 80px 0;
    }
    .hero-title {
      font-size: 42px;
    }
    .page-hero {
      padding: 160px 0 80px;
      min-height: auto;
    }
  }

  @media (max-width: 767px) {
    .container {
      padding: 0 16px;
    }
    .section {
      padding: 64px 0;
    }
    .section-title {
      font-size: 28px;
    }
    .page-hero {
      padding: 140px 0 64px;
    }
    .hero-title {
      font-size: 34px;
    }
    .hero-subtitle {
      font-size: 17px;
    }
    .hero-desc {
      font-size: 14px;
    }
    .contact-wrap {
      padding: 28px 20px;
    }
    .stat-number {
      font-size: 38px;
    }
    .footer-bottom .container {
      flex-direction: column;
      text-align: center;
      gap: 4px;
    }
    .site-header-inner {
      padding: 0 16px;
    }
    .site-logo {
      font-size: 16px;
    }
    .header-cta {
      display: none;
    }
  }

  @media (max-width: 520px) {
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-actions .btn {
      width: 100%;
      justify-content: center;
    }
    .section-head {
      margin-bottom: 32px;
    }
  }