/* ============================================
   星迹信息科技官网 - 主样式文件
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #F5F0E8;
  --bg-card: #FFFFFF;
  --bg-secondary: #EDE8DF;
  --color-title: #3D2B1F;
  --color-text: #6B5D54;
  --color-accent: #D4956B;
  --color-accent-dark: #B87A52;
  --color-border: #E0D8CC;
  --shadow-card: 0 2px 20px rgba(61, 43, 31, 0.06);
  --shadow-hover: 0 8px 30px rgba(61, 43, 31, 0.12);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 20px;
  --max-width: 1200px;
  --section-padding: 100px 0;
  --section-padding-mobile: 60px 0;
  --font-cn: 'Noto Sans SC', sans-serif;
  --font-en: 'Inter', sans-serif;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-cn);
  background-color: var(--bg-primary);
  color: var(--color-text);
  line-height: 1.8;
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-title);
  font-weight: 700;
  line-height: 1.4;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.15rem; }

p {
  color: var(--color-text);
  line-height: 1.8;
}

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

.section {
  padding: var(--section-padding);
}

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

.section-header h2 {
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-header p {
  margin-top: 20px;
  font-size: 1.05rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-tagline {
  text-align: center;
  margin-top: 50px;
  font-size: 1.1rem;
  color: var(--color-accent);
  font-weight: 600;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(245, 240, 232, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(61, 43, 31, 0.08);
  border-bottom-color: var(--color-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.nav-logo .logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

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

.nav-links a {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

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

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

.nav-cta {
  background: var(--color-accent) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-btn);
  font-weight: 600 !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  transform: translateY(-1px);
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-title);
  transition: var(--transition);
  border-radius: 1px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #F5F0E8 0%, #EDE8DF 50%, #F5F0E8 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 149, 107, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212, 149, 107, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-block;
  background: rgba(212, 149, 107, 0.12);
  color: var(--color-accent);
  padding: 8px 24px;
  border-radius: var(--radius-tag);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero h1 .accent {
  color: var(--color-accent);
}

.hero .subtitle {
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.hero .company-name {
  font-size: 0.95rem;
  color: var(--color-text);
  opacity: 0.7;
  margin-bottom: 40px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: var(--font-cn);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: 0 4px 15px rgba(212, 149, 107, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 149, 107, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-title);
  border: 2px solid var(--color-border);
}

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

/* --- Cards Grid --- */
.cards-grid {
  display: grid;
  gap: 24px;
}

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

.cards-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.cards-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(212, 149, 107, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.card h3 {
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.card ul {
  margin-top: 12px;
}

.card ul li {
  font-size: 0.93rem;
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}

.card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- About Section --- */
.about-content {
  max-width: 800px;
  margin: 0 auto 50px;
  text-align: center;
}

.about-content p {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.about-tags {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.about-tag {
  background: var(--bg-card);
  padding: 20px 32px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  text-align: center;
  border: 1px solid var(--color-border);
  min-width: 200px;
}

.about-tag .tag-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.about-tag h4 {
  color: var(--color-accent);
  margin-bottom: 6px;
}

.about-tag p {
  font-size: 0.9rem;
}

/* --- Vision Section --- */
.vision-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}

.vision-card {
  background: var(--bg-card);
  padding: 36px 28px;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.vision-card .card-emoji {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.vision-card h3 {
  margin-bottom: 12px;
}

.vision-card p {
  font-size: 0.95rem;
}

.vision-card ul {
  text-align: left;
  margin-top: 12px;
}

.vision-card ul li {
  font-size: 0.9rem;
  padding: 4px 0 4px 16px;
  position: relative;
}

.vision-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.promise-box {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 40px;
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--color-accent);
}

.promise-box h3 {
  margin-bottom: 20px;
  color: var(--color-accent);
}

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

.promise-list li {
  font-size: 1rem;
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--color-title);
  font-weight: 500;
}

.promise-list li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* --- Pain Points Section --- */
.pain-bg {
  background: var(--bg-secondary);
}

.pain-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.pain-card .pain-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.pain-card h3 {
  margin-bottom: 12px;
  color: var(--color-title);
}

.pain-card p {
  font-size: 0.93rem;
  line-height: 1.7;
}

/* --- Services Overview --- */
.service-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  text-align: center;
}

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

.service-card .service-icon {
  width: 64px;
  height: 64px;
  background: rgba(212, 149, 107, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}

.service-card h3 {
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.93rem;
}

/* --- Service Detail Sections --- */
.detail-section {
  padding: 80px 0;
}

.detail-section:nth-child(even) {
  background: var(--bg-secondary);
}

.detail-header {
  margin-bottom: 40px;
}

.detail-header h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.detail-header h2::after {
  display: none;
}

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

.detail-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

.detail-card h4 {
  color: var(--color-accent);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.detail-card ul li {
  font-size: 0.93rem;
  padding: 3px 0 3px 16px;
  position: relative;
}

.detail-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

.detail-full {
  grid-column: 1 / -1;
}

/* --- Funnel / Methodology --- */
.funnel {
  max-width: 800px;
  margin: 0 auto;
}

.funnel-step {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  position: relative;
  transition: var(--transition);
}

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

.funnel-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--color-accent);
  border-radius: 4px 0 0 4px;
}

.funnel-step .step-num {
  display: inline-block;
  background: var(--color-accent);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  text-align: center;
  line-height: 32px;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 12px;
  font-family: var(--font-en);
}

.funnel-step h3 {
  margin-bottom: 8px;
}

.funnel-step .step-en {
  font-family: var(--font-en);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.funnel-step p {
  font-size: 0.93rem;
  margin-bottom: 4px;
}

.funnel-step .step-metric {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: 8px;
}

/* --- Process Section --- */
.process-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.process-step {
  text-align: center;
  flex: 1;
  min-width: 200px;
  max-width: 260px;
  position: relative;
  padding: 0 16px;
}

.process-step .step-circle {
  width: 72px;
  height: 72px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-en);
  box-shadow: 0 4px 15px rgba(212, 149, 107, 0.3);
}

.process-step h4 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.process-step ul {
  text-align: left;
}

.process-step ul li {
  font-size: 0.88rem;
  padding: 3px 0 3px 14px;
  position: relative;
}

.process-step ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

.process-arrow {
  display: flex;
  align-items: center;
  padding-top: 28px;
  color: var(--color-accent);
  font-size: 1.5rem;
  font-weight: 700;
}

/* --- Advantages Section --- */
.advantage-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.advantage-card .adv-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.advantage-card h3 {
  margin-bottom: 12px;
}

.advantage-card p {
  font-size: 0.93rem;
  margin-bottom: 4px;
}

/* --- Industry Section --- */
.industry-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.industry-card .ind-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.industry-card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.industry-card ul li {
  font-size: 0.9rem;
  padding: 3px 0 3px 14px;
  position: relative;
}

.industry-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Tech Section --- */
.tech-bg {
  background: var(--bg-secondary);
}

.tech-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
}

.tech-card h4 {
  color: var(--color-accent);
  margin-bottom: 12px;
}

.tech-card ul li {
  font-size: 0.93rem;
  padding: 3px 0 3px 14px;
  position: relative;
}

.tech-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

.tool-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.tool-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
}

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

.tool-card .tool-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.tool-card h4 {
  margin-bottom: 8px;
}

.tool-card p {
  font-size: 0.9rem;
}

/* --- Team Section --- */
.team-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.team-card .team-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.team-card h4 {
  margin-bottom: 10px;
}

.team-card p {
  font-size: 0.93rem;
  margin-bottom: 4px;
}

.stats-row {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 50px;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-item .stat-num {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-en);
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-top: 4px;
}

/* --- Cases Section --- */
.case-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.case-card .case-tag {
  display: inline-block;
  background: rgba(212, 149, 107, 0.12);
  color: var(--color-accent);
  padding: 4px 14px;
  border-radius: var(--radius-tag);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.case-card h3 {
  margin-bottom: 12px;
}

.case-card p {
  font-size: 0.93rem;
  margin-bottom: 4px;
}

.case-card .case-result {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.93rem;
}

/* --- Cooperation Section --- */
.coop-bg {
  background: var(--bg-secondary);
}

.coop-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.coop-card.featured {
  border-color: var(--color-accent);
  border-width: 2px;
}

.coop-card.featured::before {
  content: '\63A8\8350';
  position: absolute;
  top: 16px;
  right: -28px;
  background: var(--color-accent);
  color: white;
  padding: 2px 36px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: rotate(45deg);
}

.coop-card .coop-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.coop-card h3 {
  margin-bottom: 8px;
}

.coop-card .coop-desc {
  font-size: 0.9rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  font-weight: 500;
}

.coop-card ul {
  text-align: left;
}

.coop-card ul li {
  font-size: 0.9rem;
  padding: 4px 0 4px 16px;
  position: relative;
}

.coop-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Guarantee Section --- */
.guarantee-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.guarantee-card .g-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.guarantee-card h3 {
  margin-bottom: 12px;
}

.guarantee-card ul li {
  font-size: 0.93rem;
  padding: 3px 0 3px 14px;
  position: relative;
}

.guarantee-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* --- Testimonials Section --- */
.testimonial-bg {
  background: var(--bg-secondary);
}

.industry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 50px;
}

.industry-tag {
  background: var(--bg-card);
  padding: 12px 24px;
  border-radius: var(--radius-tag);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  text-align: center;
}

.industry-tag strong {
  color: var(--color-title);
  display: block;
  margin-bottom: 2px;
}

.industry-tag span {
  font-size: 0.8rem;
  color: var(--color-text);
}

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

.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 32px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.3;
  position: absolute;
  top: 12px;
  left: 20px;
  line-height: 1;
  font-family: Georgia, serif;
}

.testimonial-card p {
  font-size: 0.95rem;
  font-style: italic;
  margin-bottom: 16px;
  padding-top: 20px;
}

.testimonial-card .author {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  font-style: normal;
}

/* --- Diagnosis Section --- */
.diagnosis-bg {
  background: linear-gradient(135deg, #3D2B1F 0%, #5A3E2E 100%);
  color: white;
}

.diagnosis-bg .section-header h2 {
  color: white;
}

.diagnosis-bg .section-header h2::after {
  background: var(--color-accent);
}

.diagnosis-bg .section-header p {
  color: rgba(255, 255, 255, 0.8);
}

.diagnosis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.diagnosis-list {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.diagnosis-list h3 {
  color: white;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.diagnosis-list .diag-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: flex-start;
}

.diagnosis-list .diag-item .diag-icon {
  width: 32px;
  height: 32px;
  background: rgba(212, 149, 107, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.9rem;
}

.diagnosis-list .diag-item .diag-text h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.diagnosis-list .diag-item .diag-text p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.diagnosis-steps {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.diagnosis-steps h3 {
  color: white;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.diag-step {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.diag-step .step-num {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
  font-family: var(--font-en);
}

.diag-step h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.diag-step p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.diagnosis-form {
  margin-top: 50px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 36px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.diagnosis-form h3 {
  color: white;
  text-align: center;
  margin-bottom: 24px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

.form-group input {
  padding: 12px 16px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: white;
  font-size: 0.95rem;
  font-family: var(--font-cn);
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-group input:focus {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.12);
}

.form-submit {
  text-align: center;
  margin-top: 24px;
}

.form-submit .btn {
  min-width: 200px;
  justify-content: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
  color: white;
}

.form-success .success-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.form-success h3 {
  color: white;
  margin-bottom: 8px;
}

.form-success p {
  color: rgba(255, 255, 255, 0.8);
}

.diagnosis-banner {
  margin-top: 40px;
  text-align: center;
  background: rgba(212, 149, 107, 0.15);
  border-radius: var(--radius-card);
  padding: 20px;
  border: 1px solid rgba(212, 149, 107, 0.3);
}

.diagnosis-banner p {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 1.05rem;
}

/* --- Footer --- */
.footer {
  background: #3D2B1F;
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 40px;
}

.footer-content {
  text-align: center;
}

.footer-title {
  font-size: 2rem;
  color: white;
  margin-bottom: 12px;
}

.footer-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.footer-info {
  margin-bottom: 30px;
}

.footer-company {
  font-size: 1.1rem;
  color: white;
  font-weight: 600;
  margin-bottom: 8px;
}

.footer-services {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-contact {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.footer-contact-item .fc-icon {
  font-size: 1.1rem;
}

.footer-divider {
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin: 30px auto;
  border-radius: 1px;
}

.footer-bottom {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Scroll Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .cards-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .vision-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .vision-cards > :last-child {
    grid-column: 1 / -1;
  }
  
  .testimonial-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonial-cards > :last-child {
    grid-column: 1 / -1;
  }
  
  .tool-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.15rem; }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(245, 240, 232, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 4px 20px rgba(61, 43, 31, 0.1);
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero .subtitle {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cards-grid-2,
  .cards-grid-3,
  .cards-grid-4 {
    grid-template-columns: 1fr;
  }
  
  .vision-cards {
    grid-template-columns: 1fr;
  }
  
  .vision-cards > :last-child {
    grid-column: auto;
  }
  
  .about-tags {
    flex-direction: column;
    align-items: center;
  }
  
  .promise-list {
    grid-template-columns: 1fr;
  }
  
  .detail-grid {
    grid-template-columns: 1fr;
  }
  
  .process-flow {
    flex-direction: column;
    align-items: center;
  }
  
  .process-arrow {
    transform: rotate(90deg);
    padding: 8px 0;
  }
  
  .stats-row {
    gap: 30px;
  }
  
  .diagnosis-grid {
    grid-template-columns: 1fr;
  }
  
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-contact {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }
  
  .testimonial-cards {
    grid-template-columns: 1fr;
  }
  
  .testimonial-cards > :last-child {
    grid-column: auto;
  }
  
  .tool-cards {
    grid-template-columns: 1fr;
  }
  
  .coop-card.featured::before {
    right: -32px;
    top: 12px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero h1 {
    font-size: 1.7rem;
  }
  
  .card, .pain-card, .service-card, .detail-card {
    padding: 24px;
  }
  
  .stat-item .stat-num {
    font-size: 2.2rem;
  }
}