/* =============================================
   天津滨海新区远辰智联信息科技有限公司
   前台主样式文件
   ============================================= */

:root {
  --primary: #1a56db;
  --primary-dark: #1e429f;
  --primary-light: #e8f0fe;
  --secondary: #0ea5e9;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #111827;
  --gray-900: #1f2937;
  --gray-800: #374151;
  --gray-700: #4b5563;
  --gray-600: #6b7280;
  --gray-500: #9ca3af;
  --gray-400: #d1d5db;
  --gray-300: #e5e7eb;
  --gray-200: #f3f4f6;
  --gray-100: #f9fafb;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.14);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.18);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: .25s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 70px;
  gap: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(26,86,219,.35);
}
.logo-text { display: flex; flex-direction: column; }
.logo-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: .5px;
  line-height: 1.2;
}
.logo-sub {
  font-size: 11px;
  color: var(--gray-500);
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--gray-700);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  margin-left: 8px;
  padding: 9px 22px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white !important;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(26,86,219,.3);
  transition: all var(--transition);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,.4);
  background: var(--primary-dark) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all .3s;
}

/* ===== PAGE BANNER ===== */
.page-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0369a1 100%);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-banner .container { position: relative; z-index: 1; }
.page-banner h1 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.page-banner p {
  font-size: 16px;
  color: rgba(255,255,255,.7);
  max-width: 600px;
  margin: 0 auto 20px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.breadcrumb a { color: rgba(255,255,255,.8); transition: color var(--transition); }
.breadcrumb a:hover { color: white; }
.breadcrumb .sep { color: rgba(255,255,255,.4); }
.breadcrumb .current { color: white; font-weight: 500; }

/* ===== CONTAINER ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block;
  padding: 5px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  line-height: 1.3;
}
.section-subtitle {
  font-size: 16px;
  color: var(--gray-600);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}
.divider {
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin: 16px auto 0;
}

/* ===== HERO ===== */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 45%, #0c4a6e 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(14,165,233,.18) 0%, transparent 65%),
              radial-gradient(ellipse at 20% 80%, rgba(99,102,241,.12) 0%, transparent 55%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-particle {
  position: absolute;
  background: rgba(255,255,255,.06);
  border-radius: 50%;
  animation: floatParticle linear infinite;
}
@keyframes floatParticle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100px) scale(1); opacity: 0; }
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-text .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 999px;
  color: rgba(255,255,255,.9);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-text .badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: .7; }
}
.hero-title {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 900;
  color: white;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero-title span {
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,.75);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 500px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(26,86,219,.4);
  transition: all .3s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(26,86,219,.5); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: all .3s;
  cursor: pointer;
}
.btn-outline:hover { border-color: white; background: rgba(255,255,255,.1); }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-card {
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 420px;
}
.hero-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat-item {
  text-align: center;
  padding: 20px;
  background: rgba(255,255,255,.05);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.1);
}
.stat-num {
  font-size: 32px;
  font-weight: 900;
  color: white;
  line-height: 1;
  margin-bottom: 6px;
}
.stat-num span { font-size: 18px; color: var(--accent); }
.stat-label { font-size: 12px; color: rgba(255,255,255,.6); letter-spacing: .5px; }

/* ===== CARDS ===== */
.card {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-300);
  transition: all var(--transition);
  overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 36px 28px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
  transition: all .3s;
}
.feature-card:hover .feature-icon { background: var(--primary); }
.feature-card:hover .feature-icon svg { color: white; }
.feature-title { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--gray-600); line-height: 1.7; }

/* ===== INFO TABLE ===== */
.info-section { background: var(--gray-100); }
.info-table-wrap {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.info-table { width: 100%; border-collapse: collapse; }
.info-table th, .info-table td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray-300);
  text-align: left;
  font-size: 14.5px;
}
.info-table th {
  background: var(--gray-200);
  color: var(--gray-700);
  font-weight: 600;
  width: 200px;
  white-space: nowrap;
}
.info-table td { color: var(--gray-800); }
.info-table tr:last-child th,
.info-table tr:last-child td { border-bottom: none; }
.info-table tr:hover td { background: var(--gray-100); }

/* ===== ANNOUNCEMENT LIST ===== */
.announcement-list { display: flex; flex-direction: column; gap: 16px; }
.announcement-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gray-300);
  box-shadow: var(--shadow-sm);
  transition: all .3s;
  cursor: pointer;
}
.announcement-item:hover { transform: translateX(4px); box-shadow: var(--shadow); border-color: var(--primary); }
.announcement-item.is-top { border-left: 4px solid var(--primary); }
.ann-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 54px;
  padding: 10px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.ann-day { font-size: 22px; font-weight: 800; color: var(--primary); line-height: 1; }
.ann-month { font-size: 11px; color: var(--primary); font-weight: 600; margin-top: 2px; }
.ann-body { flex: 1; }
.ann-title { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.ann-tag {
  display: inline-block;
  padding: 2px 10px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
}
.ann-tag.important { background: #fef3c7; color: #d97706; }
.ann-preview { font-size: 13.5px; color: var(--gray-600); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== CHANGE RECORDS TABLE ===== */
.change-table-wrap {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.change-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.change-table thead { background: linear-gradient(135deg, var(--primary), var(--secondary)); }
.change-table thead th {
  padding: 16px 20px;
  color: white;
  font-weight: 600;
  font-size: 14px;
  text-align: left;
  white-space: nowrap;
  word-break: keep-all;
}
.change-table tbody tr { border-bottom: 1px solid var(--gray-300); transition: background .2s; }
.change-table tbody tr:last-child { border-bottom: none; }
.change-table tbody tr:hover { background: var(--gray-100); }
.change-table td {
  padding: 15px 20px;
  font-size: 14px;
  color: var(--gray-700);
  word-break: break-all;
  word-wrap: break-word;
  max-width: 360px;
}
.change-table td:first-child { font-weight: 600; color: var(--primary); white-space: nowrap; word-break: keep-all; min-width: 48px; }
.change-table td:nth-child(2) { white-space: nowrap; min-width: 100px; }
.change-table td:nth-child(3) { white-space: nowrap; font-weight: 600; color: var(--dark); min-width: 100px; }
.change-table td:nth-child(4), .change-table td:nth-child(5) { min-width: 160px; }
.change-table td:last-child { white-space: nowrap; min-width: 60px; }
.no-data {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-500);
  font-size: 15px;
}

/* ===== ABOUT PAGE ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-img-wrap {
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-icon-big { font-size: 80px; opacity: .2; color: white; }
.about-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: white;
  border-radius: 16px;
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--gray-300);
}
.about-badge-num { font-size: 32px; font-weight: 900; color: var(--primary); line-height: 1; }
.about-badge-text { font-size: 12px; color: var(--gray-600); margin-top: 4px; }
.about-content h2 { font-size: 32px; font-weight: 800; color: var(--dark); margin-bottom: 16px; }
.about-content p { font-size: 15px; color: var(--gray-600); line-height: 1.9; margin-bottom: 16px; }
.about-list { margin: 24px 0; }
.about-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-200);
}
.about-list li::before {
  content: '✓';
  width: 22px;
  height: 22px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== VALUES SECTION ===== */
.values-section { background: linear-gradient(135deg, #0f172a, #1e3a8a); padding: 80px 0; }
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.value-item {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255,255,255,.06);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.1);
  transition: all .3s;
}
.value-item:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.value-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
}
.value-title { font-size: 18px; font-weight: 700; color: white; margin-bottom: 10px; }
.value-desc { font-size: 13.5px; color: rgba(255,255,255,.65); line-height: 1.7; }

/* ===== NEWS / ANNOUNCEMENT DETAIL ===== */
.article-wrap {
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px;
  border: 1px solid var(--gray-300);
}
.article-title { font-size: 26px; font-weight: 800; color: var(--dark); margin-bottom: 12px; line-height: 1.4; }
.article-meta {
  display: flex;
  gap: 20px;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid var(--gray-300);
  border-bottom: 1px solid var(--gray-300);
  margin-bottom: 28px;
  font-size: 13px;
  color: var(--gray-500);
}
.article-body { font-size: 15px; color: var(--gray-700); line-height: 2; }
.article-body p { margin-bottom: 16px; }

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-300);
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  background: white;
  transition: all .2s;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: white; }

/* ===== FOOTER ===== */
.site-footer {
  background: linear-gradient(180deg, #0f172a 0%, #020617 100%);
  color: rgba(255,255,255,.7);
  padding: 0;
  margin-top: auto;
}
.footer-main {
  padding: 64px 0 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.footer-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 900;
  font-size: 18px;
}
.footer-logo-text { font-size: 14px; font-weight: 700; color: white; line-height: 1.3; }
.footer-logo-sub { font-size: 11px; color: rgba(255,255,255,.5); }
.footer-desc { font-size: 13.5px; line-height: 1.8; color: rgba(255,255,255,.55); margin-bottom: 20px; max-width: 300px; }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-bottom: 8px;
}
.footer-contact-icon {
  width: 20px;
  height: 20px;
  color: var(--primary);
  flex-shrink: 0;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 13.5px;
  color: rgba(255,255,255,.55);
  transition: all .2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.footer-links a::before { content: '›'; color: var(--primary); font-size: 16px; }
.footer-links a:hover { color: white; padding-left: 4px; }

.footer-info-block {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 12px;
}
.footer-info-label { font-size: 11px; color: rgba(255,255,255,.4); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.footer-info-value { font-size: 13px; color: rgba(255,255,255,.7); }

.footer-bottom {
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  line-height: 1.8;
}
.footer-beian {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.beian-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,.4);
  transition: color .2s;
}
.beian-item:hover { color: rgba(255,255,255,.7); }
.beian-icon {
  width: 16px;
  height: 16px;
  opacity: .6;
}
.footer-divider { width: 1px; height: 14px; background: rgba(255,255,255,.15); }

/* ===== BACK TO TOP ===== */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(26,86,219,.4);
  transition: all .3s;
  opacity: 0;
  pointer-events: none;
  z-index: 999;
  border: none;
}
.back-top.visible { opacity: 1; pointer-events: all; }
.back-top:hover { transform: translateY(-3px); box-shadow: 0 8px 28px rgba(26,86,219,.5); }

/* ===== UTILITY ===== */
.badge-success { background: #d1fae5; color: #065f46; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-info { background: var(--primary-light); color: var(--primary); padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-warning { background: #fef3c7; color: #92400e; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.text-primary { color: var(--primary); }
.text-muted { color: var(--gray-500); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.fw-bold { font-weight: 700; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-desc { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    padding: 16px;
    border-bottom: 1px solid var(--gray-300);
    box-shadow: var(--shadow);
    gap: 4px;
  }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .info-table th { width: 130px; }
  .change-table { font-size: 13px; }
  .change-table thead th, .change-table td { padding: 10px 12px; }
  .section { padding: 52px 0; }
  .page-banner { padding: 52px 20px; }
  .article-wrap { padding: 24px 20px; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 28px; }
  .btn-primary, .btn-outline { padding: 12px 24px; font-size: 14px; }
  .footer-beian { flex-direction: column; gap: 8px; }
  .footer-divider { display: none; }
  .hero-stats-grid { grid-template-columns: 1fr 1fr; }
}