/* ==================== 基础重置 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #1e3a8a;
  --primary-light: #3b5fb7;
  --primary-dark: #0c1f4c;
  --accent: #c9a961;
  --accent-light: #e0c989;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --bg-dark: #0a1532;
  --text: #1a202c;
  --text-light: #4a5568;
  --text-muted: #718096;
  --border: #e2e8f0;
  --shadow: 0 10px 40px rgba(12, 31, 76, 0.08);
  --shadow-lg: 0 20px 60px rgba(12, 31, 76, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ==================== 顶部导航 ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  background: white;
  padding: 2px;
  box-shadow: 0 2px 8px rgba(30, 58, 138, 0.15);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary-dark);
}

.brand-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.menu {
  display: flex;
  gap: 4px;
  align-items: center;
}

.menu a {
  padding: 10px 22px;
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.menu a:hover, .menu a.active {
  color: var(--primary);
  background: rgba(30, 58, 138, 0.06);
}

.menu-cta {
  background: var(--primary);
  color: white !important;
  padding: 10px 24px !important;
  margin-left: 12px;
  border-radius: 8px;
}
.menu-cta:hover {
  background: var(--primary-dark) !important;
  color: white !important;
}

.menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--primary-dark);
  transition: var(--transition);
  border-radius: 2px;
}

/* ==================== Hero 区 ==================== */
.hero {
  position: relative;
  min-height: 92vh;
  padding: 140px 32px 80px;
  background:
    radial-gradient(1200px 600px at 80% 20%, rgba(201, 169, 97, 0.18), transparent 60%),
    linear-gradient(135deg, #0a1532 0%, #1e3a8a 60%, #2a4ba0 100%);
  color: white;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(201, 169, 97, 0.4);
  background: rgba(201, 169, 97, 0.08);
  border-radius: 100px;
  color: var(--accent-light);
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 28px;
}
.hero-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 40px;
  max-width: 580px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201, 169, 97, 0.3);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
}

.hero-visual {
  position: relative;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 200px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hero-card-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.hero-card-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.hero-card.c1 { top: 10%;  left: 5%;  animation: float 6s ease-in-out infinite; }
.hero-card.c2 { top: 40%;  right: 0;  animation: float 6s ease-in-out infinite -2s; }
.hero-card.c3 { bottom: 8%; left: 18%; animation: float 6s ease-in-out infinite -4s; }

.hero-emblem {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(201, 169, 97, 0.4), rgba(30, 58, 138, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4), inset 0 0 60px rgba(201, 169, 97, 0.1);
}
.hero-emblem img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  background: white;
  padding: 8px;
}
.hero-emblem::after {
  content: "";
  position: absolute;
  inset: -20px;
  border: 1px dashed rgba(201, 169, 97, 0.3);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==================== 通用 Section ==================== */
.section {
  padding: 100px 32px;
}
.section-soft { background: var(--bg-soft); }
.section-dark { background: var(--bg-dark); color: white; }

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(30, 58, 138, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-dark .section-eyebrow {
  background: rgba(201, 169, 97, 0.15);
  color: var(--accent-light);
}

.section-title {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.section-title .accent {
  background: linear-gradient(135deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.section-desc {
  font-size: 16px;
  color: var(--text-light);
  max-width: 680px;
  margin: 0 auto;
}
.section-dark .section-desc { color: rgba(255, 255, 255, 0.7); }

/* ==================== 首页 - 业务板块 ==================== */
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.biz-card {
  position: relative;
  padding: 44px 32px;
  background: white;
  border-radius: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
  overflow: hidden;
}
.biz-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.biz-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  opacity: 0;
  transition: var(--transition);
  z-index: 0;
}
.biz-card:hover::before { opacity: 1; }

.biz-card > * { position: relative; z-index: 1; }

.biz-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 30px;
  color: white;
  transition: var(--transition);
}
.biz-card:hover .biz-icon {
  background: white;
  color: var(--primary);
  transform: rotate(-8deg) scale(1.05);
}

.biz-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  transition: var(--transition);
}
.biz-card:hover h3 { color: white; }

.biz-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 20px;
  transition: var(--transition);
}
.biz-card:hover p { color: rgba(255, 255, 255, 0.85); }

.biz-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.biz-tag {
  padding: 4px 10px;
  background: rgba(30, 58, 138, 0.06);
  color: var(--primary);
  font-size: 12px;
  border-radius: 6px;
  transition: var(--transition);
}
.biz-card:hover .biz-tag {
  background: rgba(255, 255, 255, 0.15);
  color: white;
}

.biz-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.biz-card:hover .biz-link { color: var(--accent); }
.biz-link::after {
  content: "→";
  transition: var(--transition);
}
.biz-card:hover .biz-link::after { transform: translateX(4px); }

/* ==================== 首页 - 数字数据 ==================== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding: 60px 0;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 56px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
}

/* ==================== 首页 - 优势 ==================== */
.advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.adv-item {
  padding: 36px 24px;
  background: white;
  border-radius: 16px;
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.adv-item:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.adv-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}
.adv-item h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}
.adv-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

/* ==================== 关于我们 - 理念网格 ==================== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-card {
  position: relative;
  padding: 36px;
  background: white;
  border-radius: 16px;
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.value-card:hover {
  transform: translateX(4px);
  border-left-color: var(--primary);
}
.value-card .num {
  position: absolute;
  right: 24px;
  top: 24px;
  font-size: 56px;
  font-weight: 800;
  color: rgba(30, 58, 138, 0.06);
  line-height: 1;
}
.value-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.value-card .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}
.value-card p {
  font-size: 14.5px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ==================== 关于我们 - 文化卡片 ==================== */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.culture-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 36px 28px;
  transition: var(--transition);
}
.culture-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
  border-color: rgba(201, 169, 97, 0.4);
}
.culture-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.culture-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: white;
}
.culture-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

/* ==================== 关于我们 - 时间线 ==================== */
.timeline {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  padding-left: 48px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--primary));
}

.tl-item {
  position: relative;
  padding-bottom: 48px;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -40px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(201, 169, 97, 0.15);
}
.tl-year {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.tl-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.tl-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ==================== 服务 - 详细页 ==================== */
.service-block {
  padding: 80px 32px;
  border-bottom: 1px solid var(--border);
}
.service-block:nth-child(even) { background: var(--bg-soft); }
.service-block:last-child { border-bottom: 0; }

.service-row {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.service-row.reverse { direction: rtl; }
.service-row.reverse > * { direction: ltr; }

.service-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(30, 58, 138, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.service-row h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: -0.5px;
}
.service-row h2 small {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 8px;
}

.service-row p.lead {
  font-size: 16px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 32px;
}

.feature-list {
  display: grid;
  gap: 14px;
}
.feature-item {
  display: flex;
  gap: 14px;
  padding: 16px 20px;
  background: white;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.feature-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}
.feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
}
.feature-item h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.feature-item p {
  font-size: 13.5px;
  color: var(--text-light);
  line-height: 1.6;
}

.service-visual {
  position: relative;
  height: 420px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.service-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 30px 30px;
}
.service-visual .icon-large {
  position: relative;
  z-index: 2;
  font-size: 120px;
  color: rgba(255, 255, 255, 0.95);
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.service-visual.v2 {
  background: linear-gradient(135deg, #1d6f4a, #2a9d6c);
}
.service-visual.v3 {
  background: linear-gradient(135deg, #8b5a2b, #c9a961);
}

/* ==================== 联系页 ==================== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info {
  padding: 48px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: 24px;
  color: white;
  position: relative;
  overflow: hidden;
}
.contact-info::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.2), transparent 70%);
}

.contact-info h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}
.contact-info > p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 40px;
  position: relative;
}

.contact-item {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.contact-item:last-child { border-bottom: 0; }
.contact-item .ico {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(201, 169, 97, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-item .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 4px;
}
.contact-item .value {
  font-size: 16px;
  font-weight: 600;
  color: white;
  word-break: break-all;
}

.contact-form {
  padding: 48px;
  background: white;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact-form h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.contact-form > p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-field { margin-bottom: 16px; }
.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.form-field label span { color: #e53e3e; }

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
  transition: var(--transition);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 0;
  border-color: var(--primary);
  background: white;
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}
.form-field textarea { resize: vertical; min-height: 110px; }

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: 0;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
}
.form-submit:hover { background: var(--primary-dark); }

/* ==================== Page Header ==================== */
.page-header {
  padding: 180px 32px 80px;
  background: linear-gradient(135deg, #0a1532 0%, #1e3a8a 100%);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.page-header > * { position: relative; z-index: 1; }
.page-header h1 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}
.page-header h1 .accent {
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-header .breadcrumb {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}
.page-header .breadcrumb a:hover { color: var(--accent); }
.page-header .breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

/* ==================== 关于我们 - 介绍 ==================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}
.about-intro-text h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.25;
}
.about-intro-text h2 .accent {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-intro-text p {
  font-size: 15.5px;
  color: var(--text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-visual {
  position: relative;
  height: 460px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  overflow: hidden;
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-visual img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: white;
  padding: 16px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 2;
}
.about-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  padding: 32px 24px;
  background: white;
  border-radius: 16px;
  border: 1px solid var(--border);
  text-align: center;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.feature-card .num-tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.feature-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ==================== Footer ==================== */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 32px 0;
}
.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .brand-name { color: white; font-size: 17px; }
.footer-brand p {
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
}
.footer h5 {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer ul li { margin-bottom: 12px; }
.footer ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}
.footer ul li a:hover { color: var(--accent); }

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 0;
  font-size: 13px;
  text-align: center;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom p { margin: 4px 0; }
.footer-filing a {
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition);
}
.footer-filing a:hover { color: var(--accent); }
.filing-sep { margin: 0 8px; opacity: 0.4; }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { height: 380px; }
  .hero h1 { font-size: 44px; }
  .business-grid, .feature-cards, .culture-grid, .advantages { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .value-grid, .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .about-intro, .service-row { grid-template-columns: 1fr; gap: 40px; }
  .service-row.reverse { direction: ltr; }
  .service-visual { height: 320px; }
}

@media (max-width: 720px) {
  .nav { padding: 0 20px; height: 64px; }
  .menu { display: none; }
  .menu.open {
    display: flex;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px 20px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    gap: 4px;
  }
  .menu-toggle { display: flex; }
  .menu.open .menu-cta { margin: 8px 0 0; }

  .hero { padding: 110px 20px 60px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 15px; }
  .hero-visual { height: 320px; }
  .hero-emblem { width: 180px; height: 180px; }
  .hero-emblem img { width: 120px; height: 120px; }
  .hero-card { padding: 14px; min-width: 150px; }
  .hero-card-num { font-size: 22px; }

  .section { padding: 60px 20px; }
  .section-title { font-size: 28px; }
  .page-header { padding: 130px 20px 50px; }
  .page-header h1 { font-size: 32px; }

  .business-grid, .feature-cards, .culture-grid, .advantages,
  .stats, .value-grid, .footer-grid { grid-template-columns: 1fr; }
  .biz-card { padding: 32px 24px; }
  .contact-info, .contact-form { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }
  .service-block { padding: 60px 20px; }
  .service-row h2 { font-size: 26px; }
  .footer { padding: 60px 20px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats { gap: 24px; }
  .stat-num { font-size: 40px; }
  .about-intro-text h2 { font-size: 28px; }
  .footer-filing { font-size: 12px; line-height: 1.8; }
  .filing-sep { display: none; }
  .footer-filing a { display: inline-block; }
}

/* ==================== 入场动画 ==================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}