/* ===== 全局变量与重置 ===== */
:root {
  --primary: #E8B86D;
  --primary-light: #F5D4A0;
  --primary-dark: #C89440;
  --bg-dark: #0A0E1A;
  --bg-dark2: #111827;
  --bg-card: #1A2235;
  --bg-card2: #1E2940;
  --text-primary: #F0F2F8;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --accent-blue: #3B82F6;
  --accent-teal: #0EA5E9;
  --border: rgba(255,255,255,0.08);
  --gradient-gold: linear-gradient(135deg, #E8B86D, #F5D4A0, #C89440);
  --gradient-dark: linear-gradient(135deg, #0A0E1A, #111827);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-gold: 0 4px 24px rgba(232, 184, 109, 0.2);
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

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

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.navbar.scrolled {
  padding: 10px 0;
  background: rgba(10, 14, 26, 0.95);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-icon {
  color: var(--primary);
  font-size: 20px;
  line-height: 1;
}

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

.brand-main {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.brand-sub {
  font-size: 11px;
  color: var(--primary);
  font-weight: 500;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links li a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: all 0.2s ease;
  font-weight: 500;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

.nav-links li a.nav-cta {
  background: var(--primary);
  color: #0A0E1A;
  font-weight: 700;
  padding: 8px 18px;
}

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== Hero 区域 ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 24px 80px;
  overflow: hidden;
  background: radial-gradient(ellipse at 20% 50%, rgba(232, 184, 109, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
              var(--bg-dark);
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(232, 184, 109, 0.12);
  border: 1px solid rgba(232, 184, 109, 0.3);
  border-radius: 100px;
  font-size: 12px;
  color: var(--primary);
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 14px 28px;
  background: var(--primary);
  color: #0A0E1A;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s ease;
  display: inline-block;
}

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

.btn-primary.large {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-secondary {
  padding: 14px 28px;
  background: rgba(255,255,255,0.06);
  color: var(--text-primary);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: all 0.2s ease;
  display: inline-block;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn-outline {
  padding: 14px 28px;
  background: transparent;
  color: var(--primary);
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid var(--primary);
  transition: all 0.2s ease;
  display: inline-block;
}

.btn-outline:hover {
  background: rgba(232, 184, 109, 0.1);
  transform: translateY(-2px);
}

.btn-outline.large {
  padding: 16px 36px;
  font-size: 16px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  padding: 0 28px 0 0;
}

.stat-item:first-child {
  padding-left: 0;
}

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  margin: 0 28px 0 0;
}

/* 六边形装饰 */
.hero-visual {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  width: 420px;
  height: 420px;
  pointer-events: none;
}

.hex-grid {
  position: relative;
  width: 100%;
  height: 100%;
}

.hex {
  position: absolute;
  width: 110px;
  height: 110px;
  background: rgba(26, 34, 53, 0.8);
  border: 1px solid rgba(232, 184, 109, 0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  animation: float-hex 6s ease-in-out infinite;
}

.hex:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(232, 184, 109, 0.05);
}

.hex-1 { top: 0; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.hex-2 { top: 100px; right: 0; animation-delay: 0.5s; }
.hex-3 { top: 100px; left: 0; animation-delay: 1s; }
.hex-4 { bottom: 100px; right: 0; animation-delay: 1.5s; }
.hex-5 { bottom: 100px; left: 0; animation-delay: 2s; }
.hex-6 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 2.5s; }

@keyframes float-hex {
  0%, 100% { transform: translateY(0) translateX(var(--tx, 0)); }
  50% { transform: translateY(-8px) translateX(var(--tx, 0)); }
}

.hex-1 { --tx: -50%; }
.hex-6 { --tx: -50%; }

/* ===== 通用 Section 样式 ===== */
section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 620px;
  margin: 0 auto;
}

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

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(232, 184, 109, 0.1);
  border: 1px solid rgba(232, 184, 109, 0.25);
  border-radius: 100px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* ===== 价值主张区 ===== */
.value-prop {
  background: var(--bg-dark);
}

.value-prop .section-header h2 {
  color: var(--text-primary);
}

.pain-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pain-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.pain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pain-card:hover::before {
  opacity: 1;
}

.pain-card.featured {
  border-color: rgba(232, 184, 109, 0.3);
  background: linear-gradient(145deg, rgba(232, 184, 109, 0.08), var(--bg-card));
}

.pain-card.featured::before {
  opacity: 1;
}

.pain-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.pain-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.pain-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.solution-arrow {
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 8px;
  font-weight: bold;
}

.solution-tag {
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

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

.solution-desc strong {
  color: var(--text-primary);
}

/* ===== 服务体系概览 ===== */
.services-overview {
  background: var(--bg-dark2);
}

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

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(232, 184, 109, 0.3);
  box-shadow: var(--shadow-card);
}

.service-card.featured {
  background: var(--primary);
  border-color: var(--primary);
  color: #0A0E1A;
}

.service-card.featured h3,
.service-card.featured p,
.service-card.featured .service-features li,
.service-card.featured .service-cta {
  color: #0A0E1A;
}

.service-card.featured .service-num {
  color: rgba(10, 14, 26, 0.3);
}

.service-card.featured .service-icon-wrap svg path,
.service-card.featured .service-icon-wrap svg rect {
  stroke: #0A0E1A;
}

.service-num {
  font-size: 48px;
  font-weight: 900;
  color: rgba(255,255,255,0.05);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.service-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 10px;
  background: rgba(10, 14, 26, 0.2);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  color: #0A0E1A;
}

.service-icon-wrap {
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

.service-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.service-features {
  list-style: none;
  margin-bottom: 28px;
}

.service-features li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.service-features li::before {
  content: '•';
  position: absolute;
  left: 6px;
  color: var(--primary);
}

.service-card.featured .service-features li::before {
  color: rgba(10, 14, 26, 0.5);
}

.service-card.featured .service-features li {
  border-bottom-color: rgba(10, 14, 26, 0.15);
}

.service-cta {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

/* ===== 服务对象 ===== */
.who-we-serve {
  background: var(--bg-dark);
}

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

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
}

.client-card:hover {
  border-color: rgba(232, 184, 109, 0.25);
  transform: translateY(-4px);
}

.client-icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.client-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.client-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.client-need {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  padding: 10px 14px;
  background: rgba(232, 184, 109, 0.08);
  border-radius: 8px;
  border-left: 3px solid var(--primary);
}

/* ===== 方法论 ===== */
.methodology {
  background: var(--bg-dark2);
  position: relative;
  overflow: hidden;
}

.methodology::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(232, 184, 109, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.method-header {
  text-align: center;
  margin-bottom: 72px;
}

.method-header h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  margin: 16px 0 0;
  letter-spacing: -0.02em;
}

.method-header h2 .sub {
  display: block;
  font-size: 0.6em;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 8px;
}

.method-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
}

.method-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
  position: relative;
}

.step-circle {
  width: 80px;
  height: 80px;
  background: var(--bg-card);
  border: 2px solid rgba(232, 184, 109, 0.3);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.step-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.05em;
}

.step-icon {
  font-size: 20px;
}

.step-content {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
}

.step-content h3 {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.step-content h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.step-content ul {
  list-style: none;
}

.step-content ul li {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 0 8px 20px;
  position: relative;
  line-height: 1.5;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.step-content ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 12px;
}

.method-arrow {
  font-size: 28px;
  color: var(--primary);
  margin-top: 160px;
  padding: 0 12px;
  flex-shrink: 0;
  opacity: 0.7;
}

/* ===== 研究能力 ===== */
.research-showcase {
  background: var(--bg-dark);
}

.research-tracks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 48px;
}

.track-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s ease;
}

.track-item:hover, .track-item.active {
  border-color: rgba(232, 184, 109, 0.3);
  background: rgba(232, 184, 109, 0.05);
  color: var(--text-primary);
}

.track-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.track-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 8px;
  background: rgba(232, 184, 109, 0.15);
  border-radius: 100px;
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
}

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

.rf-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: all 0.3s ease;
}

.rf-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 184, 109, 0.2);
}

.rf-icon {
  font-size: 28px;
  margin-bottom: 14px;
}

.rf-card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
}

.rf-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, #0D1829, #111827);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(232, 184, 109, 0.07), transparent 60%);
  pointer-events: none;
}

.cta-banner .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
}

.cta-content {
  flex: 1;
  min-width: 300px;
}

.cta-text h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

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

.cta-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 260px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.info-icon {
  font-size: 18px;
}

/* ===== 页脚 ===== */
.footer {
  background: #060A14;
  padding: 60px 0 24px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 16px;
}

.footer-links h5 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links ul li a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-links ul li a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== 服务页面样式 ===== */
.page-hero {
  padding: 140px 24px 80px;
  background: radial-gradient(ellipse at 30% 50%, rgba(232, 184, 109, 0.07) 0%, transparent 60%), var(--bg-dark);
  text-align: center;
}

.page-hero .hero-badge {
  margin-bottom: 20px;
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.page-hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.service-detail {
  padding: 80px 0;
}

.service-detail:nth-child(even) {
  background: var(--bg-dark2);
}

.service-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
}

.service-detail-inner.reverse {
  grid-template-columns: 1.4fr 1fr;
}

.service-detail-inner.reverse .detail-visual {
  order: -1;
}

.detail-text .section-tag {
  margin-bottom: 12px;
}

.detail-text h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.detail-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.detail-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.detail-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.detail-points li::before {
  content: '◆';
  color: var(--primary);
  font-size: 10px;
  margin-top: 4px;
  flex-shrink: 0;
}

.detail-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.detail-visual h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.score-table {
  width: 100%;
}

.score-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.score-label {
  font-size: 13px;
  color: var(--text-secondary);
  width: 120px;
  flex-shrink: 0;
}

.score-bar-wrap {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.score-bar {
  height: 100%;
  background: var(--gradient-gold);
  border-radius: 3px;
}

.score-val {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  width: 40px;
  text-align: right;
}

/* ===== 关于页面 ===== */
.team-section {
  padding: 80px 0;
  background: var(--bg-dark);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all 0.3s ease;
}

.team-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 184, 109, 0.25);
}

.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #0A0E1A;
  margin: 0 auto 16px;
}

.team-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card .team-title {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
}

.team-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== 案例页面 ===== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 184, 109, 0.25);
  box-shadow: var(--shadow-card);
}

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 16px;
  background: rgba(232, 184, 109, 0.1);
  color: var(--primary);
}

.case-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

.case-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.case-result {
  display: flex;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.case-metric {
  display: flex;
  flex-direction: column;
}

.case-metric .num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.case-metric .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ===== 研究页面 ===== */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.report-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
}

.report-card:hover {
  transform: translateY(-4px);
  border-color: rgba(232, 184, 109, 0.25);
}

.report-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(59, 130, 246, 0.1);
  color: #60A5FA;
  margin-bottom: 14px;
}

.report-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.report-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.report-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero-visual { display: none; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .research-features { grid-template-columns: 1fr 1fr; }
  .research-tracks { grid-template-columns: repeat(2, 1fr); }
  .method-flow { flex-direction: column; }
  .method-arrow { transform: rotate(90deg); margin: 0 auto 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service-detail-inner { grid-template-columns: 1fr; }
  .service-detail-inner.reverse .detail-visual { order: 0; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }
  .pain-cards { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: 1fr; }
  .research-features { grid-template-columns: 1fr 1fr; }
  .research-tracks { grid-template-columns: 1fr 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .reports-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .cta-banner .container { flex-direction: column; }
  .hero-stats { gap: 0; }
  .stat-item { min-width: calc(50% - 20px); padding: 10px 16px; }
  .stat-divider { display: none; }
}

/* ===== 动画 ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* 高亮强调 */
mark {
  background: rgba(232, 184, 109, 0.15);
  color: var(--primary);
  padding: 0 4px;
  border-radius: 3px;
}