/* ============================================
   长春吉邦科技有限公司官网 - 全局样式
   ============================================ */

@import url('variables.css');

/* ========== 重置样式 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-light-gray);
  background-image: radial-gradient(circle at 20% 20%, rgba(0, 162, 255, 0.08), transparent 40%),
                    radial-gradient(circle at 80% 0%, rgba(0, 168, 89, 0.12), transparent 35%);
  min-height: 100vh;
  font-feature-settings: "tnum" 1;
}

/* ========== 排版 ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* ========== 列表 ========== */
ul, ol {
  margin-left: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
}

/* ========== 按钮 ========== */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-image: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  background-image: linear-gradient(135deg, var(--color-highlight), var(--color-highlight-light));
  color: var(--color-white);
}

.btn-secondary:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: var(--shadow-xl);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid rgba(0, 114, 188, 0.35);
}

.btn-outline:hover {
  background-color: rgba(0, 114, 188, 0.08);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-ghost {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

/* ========== 容器 ========== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.container-full {
  width: 100%;
}

/* ========== 响应式Grid布局 ========== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
  align-items: stretch;
}

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

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

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

.grid-6 {
  grid-template-columns: repeat(6, 1fr);
}

/* 响应式Grid - 平板 */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 响应式Grid - 手机 */
@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4,
  .grid-6 {
    grid-template-columns: 1fr;
  }
}

/* ========== Flexbox ========== */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  flex-direction: column;
}

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

/* ========== 间距工具类 ========== */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }
.mt-3xl { margin-top: var(--spacing-3xl); }
.mt-4xl { margin-top: var(--spacing-4xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }
.mb-3xl { margin-bottom: var(--spacing-3xl); }
.mb-4xl { margin-bottom: var(--spacing-4xl); }

.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.p-lg { padding: var(--spacing-lg); }

/* ========== 固定导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(18px);
  transition: all var(--transition-fast);
}

.navbar.scrolled {
  background: rgba(4, 26, 50, 0.95);
  box-shadow: var(--shadow-xl);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.navbar.scrolled .navbar-logo,
.navbar.scrolled .navbar-link {
  color: var(--color-white);
}

.navbar.scrolled .navbar-link:hover {
  color: var(--color-accent);
}

.navbar.scrolled .navbar-toggle {
  color: var(--color-white);
}

.navbar-container {
  width: 100%;
  max-width: none;
  margin: 0 auto;
  padding: 0 clamp(var(--spacing-md), 4vw, var(--spacing-4xl));
  display: flex;
  align-items: center;
  justify-content: space-between;
  column-gap: var(--spacing-2xl);
  height: 70px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.navbar-logo:hover {
  color: var(--color-primary-light);
}

.navbar-logo img {
  height: 50px;
  margin-right: var(--spacing-md);
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
  justify-content: center;
  flex: 1;
  flex-wrap: nowrap;
  min-width: 0;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: flex;
  align-items: center;
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-md) 0;
  transition: color var(--transition-fast);
  position: relative;
  letter-spacing: 0.4px;
  white-space: nowrap;
}

.navbar-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-fast);
  opacity: 0.9;
}

.navbar-link:hover::after,
.navbar-item.active > .navbar-link::after {
  transform: scaleX(1);
}

.navbar-item.navbar-cta {
  margin-left: var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
}

.navbar-item.navbar-cta .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}

/* ========== 二级下拉菜单 ========== */
.navbar-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(4, 26, 50, 0.95);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  min-width: 200px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  margin-top: var(--spacing-md);
}

.navbar-item:hover .navbar-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar-submenu li {
  margin: 0;
}

.navbar-submenu a {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.navbar-submenu a:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
  padding-left: calc(var(--spacing-lg) + 6px);
}

.navbar-submenu li:first-child a {
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
}

.navbar-submenu li:last-child a {
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

/* ========== 移动菜单切换 ========== */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-2xl);
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar-menu {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--color-white);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }
  
  .navbar-menu.active {
    max-height: 500px;
  }
  
  .navbar-item {
    width: 100%;
    border-bottom: 1px solid var(--color-gray);
  }
  
  .navbar-link {
    padding: var(--spacing-lg);
    width: 100%;
  }
  
  .navbar-submenu {
    position: static;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    transform: none;
    box-shadow: none;
    background-color: var(--color-light-gray);
    margin: 0;
    transition: all var(--transition-fast);
  }
  
  .navbar-item.active .navbar-submenu {
    opacity: 1;
    visibility: visible;
    max-height: 500px;
  }
  
  .navbar-submenu a {
    padding-left: var(--spacing-2xl);
  }
}

/* ========== 页面主体 ========== */
main {
  margin-top: 70px;
  min-height: calc(100vh - 70px);
}

/* ========== 页脚 ========== */
footer {
  background: radial-gradient(circle at 5% 5%, rgba(0, 168, 89, 0.2), transparent 45%),
              linear-gradient(135deg, #041a32 0%, #031024 100%);
  color: var(--color-white);
  padding: var(--spacing-4xl) var(--container-padding);
  margin-top: var(--spacing-4xl);
  position: relative;
  overflow: hidden;
}

footer a {
  color: var(--color-accent);
}

footer a:hover {
  color: var(--color-accent-light);
}

footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(47, 156, 255, 0.25), transparent 40%);
  pointer-events: none;
}

footer > .container {
  position: relative;
  z-index: 1;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.9);
}

.footer-links a:hover {
  color: var(--color-accent-light);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.footer-meta-links {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-meta-links span {
  opacity: 0.6;
}

/* ========== 卡片组件 ========== */
.card {
  background: var(--color-card);
  border-radius: var(--border-radius-xl);
  border: 1px solid rgba(0, 114, 188, 0.08);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-2xl);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

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

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

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid rgba(0, 114, 188, 0.08);
}

.card-body {
  margin-bottom: var(--spacing-lg);
}

.card-footer {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(0, 114, 188, 0.08);
  display: flex;
  gap: var(--spacing-md);
}

/* ========== 新版主题组件 ========== */
.hero {
  margin-top: 90px;
  padding: var(--spacing-5xl) var(--container-padding);
  border-radius: var(--border-radius-xl);
  background: var(--gradient-hero);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero-compact {
  margin-top: 40px;
  padding: var(--spacing-3xl) var(--container-padding);
}

.hero-light {
  background: linear-gradient(135deg, rgba(0, 114, 188, 0.08), rgba(66, 226, 143, 0.12));
  color: var(--color-text);
  box-shadow: var(--shadow-md);
}

.hero-light::after {
  display: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(120deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0) 60%),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: cover, 140px 140px;
  opacity: 0.4;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-2xl);
}

.hero p {
  color: rgba(255, 255, 255, 0.78);
}

.hero-light p {
  color: var(--color-text-light);
}

.hero-light .hero-content h1 {
  color: var(--color-primary);
}

.hero-light .hero-description {
  color: var(--color-text-light);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-full);
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-visual {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-glow);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.metric-card {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.metric-card strong {
  display: block;
  font-size: var(--font-size-3xl);
  color: var(--color-white);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  background-color: rgba(0, 114, 188, 0.12);
  color: var(--color-primary);
}

.badge-success {
  background-color: rgba(0, 168, 89, 0.12);
  color: var(--color-accent);
}

.badge-warning {
  background-color: rgba(255, 107, 24, 0.12);
  color: var(--color-highlight);
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.chip {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-full);
  background-color: rgba(0, 114, 188, 0.08);
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.icon-ring {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 114, 188, 0.12);
  color: var(--color-primary);
}

.icon-ring.accent {
  background-color: rgba(0, 168, 89, 0.12);
  color: var(--color-accent);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
}

.stat-card {
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  border: 1px solid rgba(0, 114, 188, 0.12);
  background: var(--color-card);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: var(--font-size-5xl);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-2xl);
}

.auto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-2xl);
}

.data-card {
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-xl);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.7));
  border: 1px solid rgba(0, 114, 188, 0.1);
  box-shadow: var(--shadow-md);
}

.mesh-panel {
  position: relative;
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-3xl);
  background: rgba(4, 26, 50, 0.92);
  color: var(--color-white);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.mesh-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
                    linear-gradient(0deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.5;
  pointer-events: none;
}

.mesh-panel > * {
  position: relative;
  z-index: 1;
}

.timeline {
  position: relative;
  padding-left: var(--spacing-3xl);
  border-left: 2px solid rgba(0, 114, 188, 0.25);
}

.timeline-item {
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--spacing-3xl));
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gradient-accent);
  box-shadow: var(--shadow-glow);
}

.step-list {
  list-style: none;
  padding: 0;
  counter-reset: step;
}

.step-item {
  counter-increment: step;
  padding-left: var(--spacing-3xl);
  position: relative;
  margin-bottom: var(--spacing-2xl);
}

.step-item::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
}

.list-check {
  list-style: none;
  padding-left: 0;
}

.list-check li {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
  position: relative;
}

.list-check li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

.highlight-banner {
  border-radius: var(--border-radius-xl);
  background: rgba(0, 114, 188, 0.08);
  padding: var(--spacing-2xl);
  border: 1px solid rgba(0, 114, 188, 0.2);
}

/* ========== 部分样式 ========== */
.section {
  padding: var(--spacing-4xl) var(--container-padding);
  position: relative;
  z-index: 1;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.breadcrumb {
  margin-top: 80px;
  background: rgba(255, 255, 255, 0.85);
  padding: var(--spacing-lg) var(--container-padding);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.breadcrumb a {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

.breadcrumb span {
  opacity: 0.7;
}

.section-title h2 {
  margin-bottom: var(--spacing-lg);
}

.section-title p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.section-light {
  background-color: var(--color-light-gray);
}

.section-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section-primary h2,
.section-primary h3 {
  color: var(--color-white);
}

.section-dark {
  background: linear-gradient(135deg, #041a32 0%, #071124 100%);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3,
.section-dark p {
  color: var(--color-white);
}

.section-gradient {
  background: radial-gradient(circle at 15% 15%, rgba(0, 168, 89, 0.2), transparent 45%),
              linear-gradient(135deg, rgba(0, 114, 188, 0.15), rgba(0, 168, 89, 0.1));
}

/* ========== 图片 ========== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

.img-responsive {
  width: 100%;
  height: auto;
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== 表格 ========== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--spacing-lg);
  background: var(--color-card);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

th {
  background-image: var(--gradient-accent);
  color: var(--color-white);
  padding: var(--spacing-lg);
  text-align: left;
  font-weight: var(--font-weight-bold);
}

td {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(0, 114, 188, 0.12);
}

tr:hover {
  background-color: rgba(0, 114, 188, 0.06);
}

/* ========== 表单 ========== */
form {
  margin-bottom: var(--spacing-2xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
}

input,
textarea,
select {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-gray);
  border-radius: var(--border-radius-lg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
  background-color: var(--color-white);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 114, 188, 0.15);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========== 工具类 ========== */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

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

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

.text-muted {
  color: var(--color-text-light);
}

.text-white {
  color: var(--color-white);
}

.bg-primary {
  background-color: var(--color-primary);
}

.bg-accent {
  background-color: var(--color-accent);
}

.bg-light {
  background-color: var(--color-light-gray);
}

.hidden {
  display: none;
}

.visible {
  display: block;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 114, 188, 0.4), transparent);
  margin: var(--spacing-2xl) 0;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
  .container {
    max-width: 100%;
  }
  
  .section {
    padding: var(--spacing-3xl) var(--container-padding);
  }
}

@media (max-width: 768px) {
  body {
    font-size: var(--font-size-sm);
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  h3 {
    font-size: var(--font-size-2xl);
  }
  
  .section {
    padding: var(--spacing-2xl) var(--container-padding);
  }
  
  .card {
    padding: var(--spacing-xl);
  }

  .hero,
  .hero-compact {
    margin-top: 80px;
    padding: var(--spacing-3xl) var(--container-padding);
  }

  .hero-actions {
    flex-direction: column;
  }

  .navbar-item.navbar-cta {
    margin-left: 0;
    padding: var(--spacing-lg);
    border-bottom: none;
    justify-content: center;
  }

  .navbar-item.navbar-cta .btn {
    width: 100%;
    max-width: 320px;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }
  
  .section-title {
    margin-bottom: var(--spacing-2xl);
  }
}