/* 
 * Dongyi Risheng Official Website - Main Stylesheet
 * Brand Colors: Deep Teal (#004E42) & Gold (#D4AF37)
 */

:root {
  /* Brand Colors */
  --color-primary: #004e42; /* Deep Teal - Tech & Nature */
  --color-primary-dark: #003830;
  --color-primary-light: rgba(0, 78, 66, 0.08);
  --color-accent: #d4af37; /* Luxury Gold */
  --color-accent-light: #f3e5ab; /* Champagne */

  /* Tech Gradients */
  --gradient-brand: linear-gradient(135deg, #004e42 0%, #00897b 50%, #004e42 100%);
  --gradient-gold: linear-gradient(135deg, #d4af37, #f3e5ab, #d4af37);
  --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.05));
  --gradient-glow: radial-gradient(circle, rgba(0, 78, 66, 0.15) 0%, transparent 70%);

  /* Backgrounds */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-dark: rgba(15, 23, 42, 0.85);

  /* Text */
  --text-main: #1f2937; /* Cool Gray 900 */
  --text-secondary: #4b5563; /* Cool Gray 600 */
  --text-muted: #9ca3af; /* Cool Gray 400 */

  /* Typography */
  --font-heading: "Noto Serif SC", serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;

  /* Spacing */
  --container-max: 1280px;
  --header-height: 72px;

  /* Effects */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.04), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 10px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 20px rgba(0, 78, 66, 0.15), 0 0 60px rgba(0, 78, 66, 0.05);
  --shadow-gold: 0 0 20px rgba(212, 175, 55, 0.15);
  --border-subtle: 1px solid rgba(0, 0, 0, 0.04);
  --border-glass: 1px solid rgba(255, 255, 255, 0.18);
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Reset & Base */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-body);
  background-image:
    radial-gradient(circle at 0% 0%, rgba(0, 78, 66, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(212, 175, 55, 0.04) 0%, transparent 50%),
    linear-gradient(rgba(0, 78, 66, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 78, 66, 0.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 60px 60px, 60px 60px;
  background-attachment: fixed;
  line-height: 1.6;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  margin-top: 0;
  line-height: 1.3;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 2.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

/* Utilities */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-primary {
  color: var(--color-primary);
}
.text-accent {
  color: var(--color-accent);
}
.text-center {
  text-align: center;
}

/* Components: Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid transparent;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: var(--gradient-brand);
  background-size: 200% 200%;
  color: white;
  box-shadow: 0 4px 15px rgba(0, 78, 66, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 78, 66, 0.35), var(--shadow-glow);
  background-position: 100% 100%;
}

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

.btn-outline:hover {
  background-color: rgba(0, 78, 66, 0.05);
}

/* Layout: Header */
.site-header {
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  transition: all 0.35s ease;
}

.site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-primary), transparent);
  opacity: 0.3;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-md);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: all 0.3s ease;
  transform: translateX(-50%);
  border-radius: 1px;
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.nav-link:hover::after {
  width: 60%;
}

.nav-active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-active::after {
  width: 60%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

/* Layout: Footer */
.site-footer {
  background-color: #0f172a;
  color: #d1d5db;
  padding-top: 4rem;
  padding-bottom: 2rem;
  margin-top: auto;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 1.5rem;
  font-family: var(
    --font-body
  ); /* Footer headings normally sans-serif for readability */
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  transition: all 0.25s ease;
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 0.25rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: #6b7280;
}

/* Page: Home - Hero */
.hero-section {
    position: relative;
    height: 85vh;
    min-height: 550px;
    max-height: 900px;
    overflow: hidden;
    padding: 0;
}

.hero-carousel {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
}

/* Cinematic overlay with tech grid */
.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.45) 60%, rgba(0,0,0,0.7) 100%),
        linear-gradient(rgba(0, 78, 66, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 78, 66, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 40px 40px, 40px 40px;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    z-index: 1;
    animation: panZoom 25s infinite alternate linear;
}

@keyframes panZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 0 2rem;
    transform: translateY(20px);
    transition: transform 0.8s ease-out, opacity 0.8s ease-out;
    opacity: 0;
}

.hero-slide.active .hero-content {
    transform: translateY(0);
    opacity: 1;
}

.hero-title {
    color: white;
    font-size: 4rem;
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    background: none;
    -webkit-text-fill-color: initial;
    margin-bottom: 1.25rem;
    letter-spacing: 0.05em;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.35rem;
    margin-bottom: 2.5rem;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
    font-weight: 300;
    letter-spacing: 0.02em;
}

/* Carousel Controls - Progress bar style */
.hero-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.hero-indicator {
    width: 48px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.25);
    cursor: pointer;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.hero-indicator.active {
    background: rgba(255, 255, 255, 0.3);
}

.hero-indicator.active::after {
    content: '';
    position: absolute;
    inset: 0;
    background: white;
    animation: indicatorProgress 5s linear forwards;
    border-radius: 2px;
}

@keyframes indicatorProgress {
    from { width: 0; }
    to { width: 100%; }
}

/* Hero Badge */
.hero-badge {
    display: inline-block;
    padding: 0.4rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}

/* Hero Button */
.btn-hero {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.5rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(8px);
    transition: all 0.35s ease;
    letter-spacing: 0.03em;
}

.btn-hero:hover {
    background: white;
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

/* Scroll Hint */
.hero-scroll-hint {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
}

/* Notice Banner */
.notice-banner {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    padding: 0.75rem 0;
}

.notice-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: #92400e;
}

.notice-inner a {
    font-weight: 600;
    color: #92400e;
    text-decoration: none;
    border-bottom: 1px solid rgba(146, 64, 14, 0.3);
    transition: border-color 0.3s;
}

.notice-inner a:hover {
    border-color: #92400e;
}

.notice-icon::before {
    content: '📌';
    margin-right: 0.25rem;
}

/* Page: Home - Brand Matrix (Bento Grid) */
.brand-section {
  padding: 5rem 0;
  background: white;
  position: relative;
  overflow: hidden;
}

.brand-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 78, 66, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding-bottom: 1.5rem;
}

.section-title {
  margin-bottom: 0;
  position: relative;
  padding-left: 1.25rem;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10%;
  bottom: 10%;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.brand-card {
  background: var(--bg-surface);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

/* Gradient border on hover */
.brand-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent), var(--color-primary));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

/* Glassmorphism Hover */
.brand-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.4),
    rgba(255, 255, 255, 0)
  );
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.brand-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

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

.brand-card:hover::after {
  opacity: 1;
}

.brand-bg-text {
  position: absolute;
  right: -10px;
  bottom: -30px;
  font-size: 8rem;
  font-weight: 900;
  font-family: sans-serif;
  color: rgba(0, 0, 0, 0.02);
  transition: var(--transition-base);
  z-index: 0;
  line-height: 1;
}

.brand-card:hover .brand-bg-text {
  transform: scale(1.1) rotate(-5deg);
  color: rgba(0, 0, 0, 0.05);
}

.brand-content {
  position: relative;
  z-index: 1;
}

.brand-en {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.brand-arrow {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: flex-end;
  transition: var(--transition-base);
  position: relative;
  z-index: 2;
}

.brand-card:hover .brand-arrow {
  background: var(--color-primary);
  color: white;
  transform: rotate(-45deg); /* Arrow points up-right */
}

/* Page: News List (Magazine Style) */
.news-section {
  padding: 5rem 0;
  position: relative;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.news-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.news-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}

.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.news-card:hover::after {
  transform: scaleX(1);
}

.news-content {
  padding: 1.5rem;
}

.news-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-variant-numeric: tabular-nums;
}

.news-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 1rem;
  color: var(--text-main);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-link {
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* --- Investor Relations Styles --- */
.investor-hero {
    /* Switch to Dark Grey/Midnight Blue to avoid "stock drop green" association */
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%); 
    color: white;
    padding: 6rem 0 3rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.investor-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    /* Subtle Gold/Teal glow for premium feel */
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 60%);
    pointer-events: none;
    transform: rotate(-15deg);
}

.investor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 2rem;
    position: relative;
    z-index: 2;
}

.stock-info {
    flex: 1;
    min-width: 300px;
}

.stock-info h1 {
    font-size: 3rem; /* Increase size */
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
    color: #ffffff !important; /* Force white */
    /* Add multiple shadows for maximum readability on varying backgrounds */
    text-shadow: 0 2px 4px rgba(0,0,0,0.8), 0 0 20px rgba(0,0,0,0.5);
    letter-spacing: 1px;
}

.stock-code {
    font-size: 1.2rem;
    opacity: 0.9;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: #cbd5e1; /* Lighter grey for code */
}

.stock-code .highlight {
    font-weight: bold;
    color: var(--color-accent); /* Gold */
}

/* Live Data Styles */
.stock-live-data {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.stock-live-data .current-price {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
    font-family: 'Inter', sans-serif;
}

.stock-live-data .currency {
    font-size: 1.5rem;
    vertical-align: top;
    margin-right: 0.2rem;
}

.stock-live-data .change-container {
    font-size: 1.5rem;
    font-weight: 500;
    display: flex;
    gap: 0.5rem;
}

/* Red for Up, Green for Down (China Standard) */
.stock-live-data.up { color: #eb3323; } /* Red */
.stock-live-data.down { color: #35a246; } /* Green */

.stock-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.8rem;
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.stock-meta b {
    font-family: 'Inter', monospace;
    margin-left: 0.3rem;
    color: white; /* Brighten values */
}

.update-time {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* Charts */
.stock-chart-preview {
    background: white;
    padding: 0.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.chart-img-sm {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

.chart-img-lg {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid #eee;
}

.chart-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-tab {
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.chart-tab.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}


.investor-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 4rem;
}

.chart-section {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.05);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 2rem;
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 2rem;
}

.tab-btn {
    padding: 1rem 0;
    border: none;
    background: none;
    font-size: 1.1rem;
    font-weight: 500;
    color: #6b7280;
    cursor: pointer;
    position: relative;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: var(--color-primary);
}

.tab-btn.active {
    color: var(--color-primary);
    font-weight: 700;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Announcement List */
.announcement-list {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.announcement-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #f3f4f6;
    transition: background 0.2s;
}

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

.announcement-item:hover {
    background: #f9fafb;
}

.announcement-item .date {
    color: #9ca3af;
    font-family: 'Inter', monospace;
    font-size: 0.9rem;
    min-width: 120px;
}

.announcement-item .title {
    flex: 1;
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.announcement-item .title:hover {
    color: var(--color-primary);
}

/* Report Grid */
.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.report-card {
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.04);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.report-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.4s;
    transform-origin: left;
}

.report-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.report-card:hover::before {
    transform: scaleX(1);
}

.report-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: #f0fdf4;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.report-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1f2937;
    line-height: 1.5;
    height: 3.3rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.report-meta {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    font-size: 0.9rem;
    padding-top: 1rem;
    border-top: 1px solid #f3f4f6;
}

.btn-read {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 6px;
    background: #f0fdf4;
    transition: all 0.2s;
}

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


/* --- About Group Styles --- */
.about-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0f172a 100%);
    color: white;
    padding: 8rem 0 6rem;
    position: relative;
    overflow: hidden;
    margin-bottom: 0;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.about-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-primary), transparent);
    opacity: 0.5;
}

.about-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.about-hero .hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.about-hero .hero-subtitle {
    font-size: 1.5rem;
    opacity: 0.9;
    color: var(--color-accent-light);
}

.section-padding {
    padding: 5rem 0;
}

.bg-light {
    background-color: #f9fafb;
}

/* Intro Section */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: 'Inter', sans-serif;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.img-placeholder {
    width: 100%;
    height: 400px;
    background: #e5e7eb;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-size: 1.5rem;
    border: 2px dashed #d1d5db;
}

/* Culture Grid (Bento) */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.culture-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}

.culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.culture-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.culture-card:hover::before {
    transform: scaleX(1);
}

.culture-card h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.culture-card p, .culture-card ul {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
}

.culture-card ul {
    padding-left: 1.2rem;
}

.culture-card li {
    margin-bottom: 0.5rem;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 4rem auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--color-primary);
    opacity: 0.2;
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item .year {
    width: 120px;
    height: 120px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 1;
    box-shadow: 0 0 0 8px white, 0 0 0 10px rgba(0, 78, 66, 0.1);
    flex-shrink: 0;
}

.timeline-item .content {
    width: 42%;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.timeline-item .content h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

/* Honors */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.honor-item {
    background: white;
    padding: 2rem;
    text-align: center;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.honor-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-brand);
    opacity: 0;
    transition: opacity 0.4s;
}

.honor-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    color: white;
}

.honor-item:hover::after {
    opacity: 1;
}


/* --- Media Reports Styles --- */
.media-hero {
    background: linear-gradient(135deg, #0f172a 0%, #334155 100%); /* Slightly different blue-grey */
}

/* Featured News */
.featured-news {
    display: flex;
    gap: 3rem;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08); /* Soft shadow */
    margin-bottom: 4rem;
    align-items: stretch;
    min-height: 400px;
}

.featured-image {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.featured-news:hover .featured-image img {
    transform: scale(1.05); /* Zoom effect on hover */
}

.featured-content {
    flex: 1;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-tag {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    align-self: flex-start;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.featured-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.featured-title a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.3s;
}

.featured-title a:hover {
    color: var(--color-primary);
}

.featured-meta {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.featured-summary {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 1.05rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.btn-read-more {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.btn-read-more:hover {
    gap: 0.8rem; /* Arrow moves right */
}

/* News Grid Layout */
.news-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card-minimal {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.news-card-minimal::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.news-card-minimal:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.news-card-minimal:hover::after {
    transform: scaleX(1);
}

.news-date-box {
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--color-accent);
    padding-left: 1rem;
    line-height: 1;
}

.news-date-box .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

.news-date-box .month {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.news-title-sm {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-title-sm a {
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.2s;
}

.news-title-sm a:hover {
    color: var(--color-primary);
}

.news-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1; /* Push link to bottom */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.link-detail {
    font-size: 0.9rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    align-self: flex-start;
}

.link-detail:hover {
    text-decoration: underline;
}

/* Response for smaller screens */
@media (max-width: 768px) {
    .featured-news {
        flex-direction: column;
    }
    
    .featured-image {
        height: 250px;
    }
    
    .featured-content {
        padding: 2rem;
    }
}

/* --- Article Detail Layout (Tech/Modern Style) --- */
.article-container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(16px) saturate(1.6);
    -webkit-backdrop-filter: blur(16px) saturate(1.6);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0, 0, 0, 0.02);
    border-radius: 8px;
}

.article-header {
    text-align: center; /* User requested centering */
    margin-bottom: 3rem;
    border-bottom: 2px solid rgba(0, 78, 66, 0.1);
    padding-bottom: 2rem;
    padding-top: 1rem; /* Add some breathing room at the top */
}

.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    font-family: var(--font-body);
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    /* Tech Gradient Text */
    background: linear-gradient(135deg, #111827 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.article-meta {
    color: #64748b;
    font-size: 0.9rem;
    display: flex;
    justify-content: center; /* Center align meta */
    align-items: center;
    gap: 2rem;
    font-family: 'Courier New', monospace;
    letter-spacing: -0.02em;
}

.article-summary {
    background-color: rgba(0, 78, 66, 0.03); /* Very light brand tint */
    padding: 2rem;
    margin-bottom: 3rem;
    border-left: 4px solid var(--color-primary); /* Brand accent */
    font-size: 1.1rem;
    color: #334155;
    line-height: 1.7;
    font-family: var(--font-body);
    font-weight: 500;
}

.article-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: #1f2937; /* High contrast dark grey */
    font-family: var(--font-body);
}

.article-content p {
    margin-bottom: 1.5rem;
    text-align: justify; /* Clean blocks */
}

.article-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary); /* Headings in brand color */
    border-left: 4px solid var(--color-accent); /* Gold accent marker */
    padding-left: 1rem;
    line-height: 1.2;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 2px;
    margin: 3rem 0;
    display: block;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.article-footer {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: flex-start;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    color: #475569;
    text-decoration: none;
    font-weight: 600;
    padding: 0.75rem 2rem;
    background: #f1f5f9;
    border: none;
    border-radius: 2px;
    transition: all 0.2s ease;
    font-family: var(--font-body);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-back:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 78, 66, 0.2);
}

/* Tech Page Styles */
.tech-hero {
    position: relative;
    height: 60vh;
    min-height: 500px;
    background-image: url('../images/hero_tech_final.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.tech-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.35) 0%, rgba(30, 41, 59, 0.45) 100%);
    z-index: 1;
}

.tech-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 2rem;
}

.tech-hero-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6), 0 4px 24px rgba(0,0,0,0.4);
}

.tech-hero-subtitle {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 3rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    line-height: 1.8;
    text-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.tech-grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tech-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    position: relative;
    display: flex;
    flex-direction: column;
}

.tech-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 78, 66, 0.2);
}

.tech-card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.tech-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.75rem;
    border-radius: 9999px;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.news-title-sm {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 1rem;
    color: #1e293b;
}

.news-title-sm a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.news-title-sm a:hover {
    color: #2563eb;
}

.tech-card-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(248, 250, 252, 0.5);
}

.tech-date {
    font-size: 0.875rem;
    color: #94a3b8;
}

.tech-link {
    color: #2563eb;
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: gap 0.2s;
}

.tech-link:hover {
    gap: 0.75rem;
}

/* ========================================
   CSR (社会责任) - 颜色覆盖
   复用 tech-* 布局，仅覆盖颜色主题
   ======================================== */
.csr-overlay {
    background: linear-gradient(135deg, rgba(6, 78, 59, 0.35) 0%, rgba(20, 83, 45, 0.45) 100%) !important;
}

.csr-category-tag {
    background: #ecfdf5 !important;
    color: #059669 !important;
}

.csr-link {
    color: #059669 !important;
}

.csr-link:hover {
    color: #047857 !important;
}

/* ========================================
   Join Us (加入东易) Page Styles
   独特布局: 深色 Hero + 价值观 + 时间线
   ======================================== */

/* --- Hero Section --- */
.joinus-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.joinus-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 30%, #334155 60%, #1e293b 100%);
    z-index: 0;
}

/* 装饰性光圈 */
.joinus-hero-bg::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.joinus-hero-bg::after {
    content: '';
    position: absolute;
    bottom: -15%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.joinus-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 4rem 2rem;
}

.joinus-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.4);
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: #a5b4fc;
    margin-bottom: 2rem;
}

.joinus-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 0 0 40px rgba(255,255,255,0.25), 0 0 80px rgba(99,102,241,0.15);
}

.joinus-subtitle {
    font-size: 1.2rem;
    color: #cbd5e1;
    line-height: 1.8;
    margin-bottom: 3rem;
    font-weight: 400;
}

/* 数据统计条 */
.joinus-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.joinus-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.joinus-stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1, #06b6d4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-family: 'Inter', sans-serif;
}

.joinus-stat-label {
    font-size: 0.85rem;
    color: #64748b;
    letter-spacing: 0.05em;
}

/* --- 价值观 Section --- */
.joinus-values-section {
    padding: 6rem 2rem;
    background: #f8fafc;
}

.joinus-section-title {
    text-align: center;
    font-family: 'Noto Serif SC', serif;
    font-size: 2.2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.joinus-section-desc {
    text-align: center;
    color: #64748b;
    font-size: 1.05rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.joinus-values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 2rem auto 0;
}

.joinus-value-card {
    background: white;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.joinus-value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #6366f1, #06b6d4);
    opacity: 0;
    transition: opacity 0.3s;
}

.joinus-value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
}

.joinus-value-card:hover::before {
    opacity: 1;
}

.joinus-value-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.joinus-value-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.75rem;
}

.joinus-value-card p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
}

/* --- 时间线 Section --- */
.joinus-timeline-section {
    padding: 6rem 2rem;
    background: white;
}

.joinus-timeline {
    position: relative;
    max-width: 900px;
    margin: 3rem auto 0;
    padding: 2rem 0;
}

/* 中轴线 */
.joinus-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #e2e8f0, #6366f1, #06b6d4, #e2e8f0);
    transform: translateX(-50%);
}

.joinus-timeline-item {
    position: relative;
    width: 50%;
    padding: 1rem 2.5rem;
    box-sizing: border-box;
}

.joinus-timeline-item.left {
    padding-right: 3rem;
}

.joinus-timeline-item.right {
    left: 50%;
    padding-left: 3rem;
}

/* 时间线节点 */
.joinus-timeline-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    background: #6366f1;
    border: 3px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    top: 1.5rem;
    z-index: 2;
}

.joinus-timeline-item.left .joinus-timeline-dot {
    right: -7px;
}

.joinus-timeline-item.right .joinus-timeline-dot {
    left: -7px;
}

/* 时间线卡片 */
.joinus-timeline-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.joinus-timeline-card:hover {
    background: white;
    box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.08);
    border-color: #a5b4fc;
}

.joinus-timeline-date {
    font-size: 0.8rem;
    color: #6366f1;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.03em;
}

.joinus-timeline-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0.5rem 0;
    line-height: 1.4;
}

.joinus-timeline-title a {
    color: #1e293b;
    text-decoration: none;
    transition: color 0.2s;
}

.joinus-timeline-title a:hover {
    color: #6366f1;
}

.joinus-timeline-excerpt {
    font-size: 0.875rem;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.joinus-timeline-link {
    font-size: 0.85rem;
    color: #6366f1;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}

.joinus-timeline-link:hover {
    color: #4f46e5;
}

/* --- CTA Section --- */
.joinus-cta {
    padding: 5rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
}

.joinus-cta h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.joinus-cta p {
    font-size: 1.1rem;
    color: #94a3b8;
}

/* --- 响应式适配 --- */
@media (max-width: 768px) {
    .joinus-title {
        font-size: 2.5rem;
    }
    
    .joinus-stats {
        gap: 1.5rem;
    }
    
    .joinus-stat-number {
        font-size: 1.8rem;
    }
    
    .joinus-values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 时间线在移动端变为单列 */
    .joinus-timeline::before {
        left: 20px;
    }
    
    .joinus-timeline-item,
    .joinus-timeline-item.left,
    .joinus-timeline-item.right {
        width: 100%;
        left: 0;
        padding-left: 50px;
        padding-right: 1rem;
    }
    
    .joinus-timeline-item.left .joinus-timeline-dot,
    .joinus-timeline-item.right .joinus-timeline-dot {
        left: 13px;
        right: auto;
    }
}

/* ========================================
   Tech / CSR 页面补齐样式
   ======================================== */

/* Tech Hero Title (简写形式) */
.tech-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6), 0 4px 24px rgba(0,0,0,0.4);
}

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

.tech-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-top: 1rem;
}

.tech-grid {
    gap: 2rem;
}

.tech-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.tech-category-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.75rem;
    border-radius: 9999px;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.tech-card-body {
    flex: 1;
}

/* ========================================
   通用列表页 (.card) 样式
   ======================================== */
.card {
    background: var(--bg-surface);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}

.card:hover::after {
    transform: scaleX(1);
}

.card h3 a:hover {
    color: var(--color-primary);
}

.card .btn {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* ========================================
   移动端汉堡菜单
   ======================================== */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ========================================
   全局响应式
   ======================================== */
@media (max-width: 768px) {
    /* Header & Nav */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: white;
        flex-direction: column;
        padding: 2rem 1.5rem;
        gap: 0;
        overflow-y: auto;
        z-index: 999;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-link {
        display: block;
        padding: 1rem 0;
        font-size: 1.1rem;
    }

    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    /* Home - Hero */
    .hero-section {
        height: 70vh;
        min-height: 450px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-badge {
        font-size: 0.7rem;
        padding: 0.3rem 1rem;
    }

    .hero-scroll-hint {
        display: none;
    }

    /* Home - Brand Grid */
    .brand-grid {
        grid-template-columns: 1fr;
    }

    /* Home - News Grid */
    .news-grid {
        grid-template-columns: 1fr;
    }

    /* About - Intro */
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .stat-num {
        font-size: 2rem;
    }

    /* About - Culture */
    .culture-grid {
        grid-template-columns: 1fr;
    }

    /* About - Timeline */
    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: row;
        gap: 1.5rem;
    }

    .timeline-item .year {
        width: 80px;
        height: 80px;
        font-size: 1.1rem;
        flex-shrink: 0;
    }

    .timeline-item .content {
        width: auto;
        flex: 1;
    }

    /* About - Honors */
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Investor */
    .investor-header {
        flex-direction: column;
    }

    .stock-info h1 {
        font-size: 2rem;
    }

    .stock-live-data .current-price {
        font-size: 2.5rem;
    }

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

    .chart-tabs {
        flex-wrap: wrap;
    }

    /* Media / News */
    .news-grid-layout {
        grid-template-columns: 1fr;
    }

    /* Tech */
    .tech-hero {
        min-height: 350px;
    }

    .tech-title,
    .tech-hero-title {
        font-size: 2.2rem;
    }

    .tech-grid-layout {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
    }

    /* About / Media Hero */
    .about-hero {
        padding: 5rem 0 3rem;
    }

    .about-hero .hero-title {
        font-size: 2.2rem;
    }

    /* Section Padding */
    .section-padding {
        padding: 3rem 0;
    }

    /* Report Grid */
    .report-grid {
        grid-template-columns: 1fr;
    }

    /* Tabs */
    .tabs {
        gap: 1rem;
        overflow-x: auto;
    }
}

/* ========================================
   分页样式
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    padding: 2rem 0;
    flex-wrap: wrap;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: white;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(0, 78, 66, 0.05);
}

.page-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.page-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-ellipsis {
    color: var(--text-muted);
    padding: 0 0.25rem;
}

.page-info {
    margin-left: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}