/* =====================================================
   青鸟云官网通用样式
   主题：科技感、专业可信、简洁有力
   ===================================================== */

/* CSS 变量 */
:root {
  --brand-dark: #0f172a;
  --brand-blue: #1e40af;
  --brand-blue-light: #2563eb;
  --brand-cyan: #0891b2;
  --brand-cyan-light: #2dd4bf;
  --brand-amber: #f59e0b;
  --brand-green: #10b981;
  --brand-red: #ef4444;
  --brand-purple: #8b5cf6;
  --brand-pink: #ec4899;

  --bg-main: #f8faff;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #f1f5f9;
  --border: #e2e8f0;

  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.12), 0 4px 10px -4px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 40px -10px rgba(15, 23, 42, 0.18);

  --container: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-primary);
  background: var(--bg-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-sm {
  padding: 64px 0;
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-light);
}

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

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 48px;
}

.section-dark .section-subtitle {
  color: rgba(241, 245, 249, 0.7);
}

.section-head {
  margin-bottom: 48px;
}

.section-head.center {
  text-align: center;
}

.section-head.center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.tag-blue {
  background: rgba(37, 99, 235, 0.1);
  color: var(--brand-blue-light);
}

.tag-cyan {
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
}

.tag-amber {
  background: rgba(245, 158, 11, 0.1);
  color: var(--brand-amber);
}

.tag-green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--brand-green);
}

.tag-dark {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

/* 导航栏 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-light);
}

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

.logo img {
  height: 40px;
  width: auto;
}

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

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.2s;
  position: relative;
}

.header.scrolled .nav-link {
  color: var(--text-secondary);
}

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

.header.scrolled .nav-link:hover {
  color: var(--brand-blue-light);
}

.nav-link.active {
  color: var(--text-light);
}

.header.scrolled .nav-link.active {
  color: var(--brand-blue-light);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-cyan-light);
  transition: width 0.3s;
}

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

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
  padding: 8px;
  min-width: 340px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: background 0.2s;
}

.dropdown-item > div {
  flex: 1;
  min-width: 0;
}

.dropdown-item > div > div {
  font-weight: 600;
  font-size: .9375rem;
  line-height: 1.4;
}

.dropdown-item small {
  display: block;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
  line-height: 1.4;
}

.dropdown-item:hover {
  background: var(--bg-main);
}

.dropdown-item .icon {
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.dropdown-item .icon.geo {
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
}

.dropdown-item .icon.fde {
  background: rgba(37, 99, 235, 0.1);
  color: var(--brand-blue-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-amber);
  color: #fff;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  background: #d97706;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

.btn-blue {
  background: var(--brand-blue-light);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-blue:hover {
  background: var(--brand-blue);
  transform: translateY(-2px);
}

.btn-cyan {
  background: var(--brand-cyan);
  color: #fff;
  box-shadow: 0 4px 14px rgba(8, 145, 178, 0.35);
}

.btn-cyan:hover {
  background: #0e7490;
  transform: translateY(-2px);
}

.btn-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: var(--text-light);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-light);
}

.header.scrolled .btn-outline {
  border-color: var(--border);
  color: var(--text-primary);
}

.header.scrolled .btn-outline:hover {
  background: var(--bg-main);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: 0.3s;
}

/* ===== Hero 动态背景 ===== */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* 网格线背景 */
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 212, 191, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 212, 191, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
}

/* 浮动光球 */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  right: -50px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.5), transparent 70%);
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  bottom: -80px;
  left: 10%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.4), transparent 70%);
  animation-delay: -4s;
}

.orb-3 {
  width: 350px;
  height: 350px;
  top: 30%;
  left: 45%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 70%);
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.1); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* ===== Hero 主体 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 64px) 0 96px;
  overflow: hidden;
}

.hero-dark {
  background: linear-gradient(135deg, #0a0f1e 0%, #111e36 40%, #0a1628 100%);
  color: var(--text-light);
}

.hero-geo {
  background: linear-gradient(135deg, #0a0f1e 0%, #0d2a28 40%, #0a1628 100%);
  color: var(--text-light);
}

.hero-fde {
  background: linear-gradient(135deg, #0a0f1e 0%, #0d1a36 50%, #0a0f1e 100%);
  color: var(--text-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 2;
}

/* 渐变文字 */
.text-gradient {
  background: linear-gradient(135deg, #2dd4bf, #0891b2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-gradient-blue {
  background: linear-gradient(135deg, #60a5fa, #2563eb);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-geo .hero-title span {
  color: var(--brand-cyan-light);
}

.hero-fde .hero-title span {
  color: var(--brand-blue-light);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(241, 245, 249, 0.85);
  margin-bottom: 36px;
  max-width: 560px;
}

/* ===== AI 核心视觉 ===== */
.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
}

.ai-core-wrap {
  position: relative;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 中心核心 */
.ai-core {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 5;
}

.ai-core-glow {
  position: absolute;
  inset: -60px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.3) 0%, transparent 70%);
  animation: corePulse 3s ease-in-out infinite;
}

@keyframes corePulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0.8; }
}

.ai-core-logo {
  position: relative;
  width: 120px;
  height: 120px;
  object-fit: contain;
  z-index: 2;
  filter: drop-shadow(0 0 30px rgba(45, 212, 191, 0.5));
  animation: logoFloat 4s ease-in-out infinite;
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* 旋转光环 */
.ai-core-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid transparent;
  pointer-events: none;
}

.ring-1 {
  width: 200px;
  height: 200px;
  border-top-color: rgba(45, 212, 191, 0.4);
  border-right-color: rgba(45, 212, 191, 0.2);
  animation: ringSpin 8s linear infinite;
}

.ring-2 {
  width: 280px;
  height: 280px;
  border-top-color: rgba(37, 99, 235, 0.3);
  border-left-color: rgba(37, 99, 235, 0.15);
  border-style: dashed;
  animation: ringSpin 14s linear infinite reverse;
}

.ring-3 {
  width: 380px;
  height: 380px;
  border-top-color: rgba(139, 92, 246, 0.2);
  border-right-color: rgba(139, 92, 246, 0.1);
  animation: ringSpin 20s linear infinite;
}

@keyframes ringSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 浮动方案卡片 */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  padding: 14px 18px;
  z-index: 6;
  animation: floatCard 6s ease-in-out infinite;
}

.float-card-geo {
  top: 8%;
  right: -5%;
  animation-delay: 0s;
}

.float-card-fde {
  bottom: 12%;
  left: -8%;
  animation-delay: -3s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.float-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.geo-icon {
  background: linear-gradient(135deg, #0891b2, #2dd4bf);
  box-shadow: 0 4px 12px rgba(8, 145, 178, 0.4);
}

.fde-icon {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.float-card-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

.float-card-desc {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
}

/* 脉冲点 */
.float-card-pulse {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.geo-pulse {
  background: #2dd4bf;
  box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.6);
  animation: pulse 2s infinite;
}

.fde-pulse {
  background: #3b82f6;
  box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.6);
  animation: pulse 2s infinite;
  animation-delay: 1s;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(45, 212, 191, 0); }
  100% { box-shadow: 0 0 0 0 rgba(45, 212, 191, 0); }
}

/* 浮动数据标签 */
.float-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  padding: 8px 16px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
  z-index: 6;
  animation: floatTag 5s ease-in-out infinite;
}

.float-tag-1 {
  top: 45%;
  right: -12%;
  animation-delay: -1s;
}

.float-tag-2 {
  top: 70%;
  right: 5%;
  animation-delay: -2.5s;
}

.float-tag-3 {
  bottom: 5%;
  right: 15%;
  animation-delay: -4s;
}

@keyframes floatTag {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-8px) translateX(4px); }
}

.float-tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2dd4bf;
  flex-shrink: 0;
}

.float-tag-dot.green { background: #10b981; }
.float-tag-dot.amber { background: #f59e0b; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

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

.hero-stat .number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand-cyan-light);
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.hero-fde .hero-stat .number {
  color: var(--brand-amber);
}

.hero-stat .label {
  font-size: 0.875rem;
  color: rgba(241, 245, 249, 0.7);
}

/* 数据卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.stat-card .number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--brand-cyan);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-card .label {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* 卡片网格 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

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

.solution-mini {
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.solution-mini .card-text {
  flex: 1;
}

.card-topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-list {
  margin-top: 16px;
}

.card-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.card-list li::before {
  content: '•';
  color: var(--brand-cyan);
  font-weight: 700;
}

/* 套餐卡片 */
.pricing-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

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

.pricing-card.featured {
  border-color: var(--brand-cyan);
  transform: scale(1.02);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--brand-cyan);
  color: #fff;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-tag {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand-cyan);
  margin-bottom: 8px;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pricing-features {
  margin-bottom: 24px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.pricing-features li::before {
  content: '✓';
  color: var(--brand-green);
  font-weight: 700;
  flex-shrink: 0;
}

/* 对比表格 */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.compare-table th,
.compare-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.compare-table th {
  background: var(--bg-main);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .highlight {
  background: rgba(8, 145, 178, 0.06);
  border-left: 3px solid var(--brand-cyan);
}

.compare-table .risk {
  color: var(--brand-red);
}

.compare-table .safe {
  color: var(--brand-green);
}

/* 时间线 */
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-blue-light), var(--brand-amber), var(--brand-green));
  z-index: 0;
}

.timeline-item {
  position: relative;
  z-index: 1;
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.timeline-step {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  margin-left: auto;
  margin-right: auto;
}

.timeline-step.blue { background: var(--brand-blue-light); }
.timeline-step.amber { background: var(--brand-amber); }
.timeline-step.green { background: var(--brand-green); }
.timeline-step.cyan { background: var(--brand-cyan); }

.timeline-title {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}

.timeline-meta {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.timeline-list {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.timeline-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

.timeline-list li::before {
  content: '—';
  color: var(--brand-blue-light);
}

/* 架构图 */
.architecture {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.arch-layer {
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
}

.arch-layer.layer-1 {
  background: linear-gradient(135deg, #1e3a5f, #2563eb);
}

.arch-layer.layer-2 {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.arch-layer.layer-3 {
  background: linear-gradient(135deg, #0f172a, #1e3a5f);
}

.arch-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  opacity: 0.9;
}

.arch-items {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.arch-item {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  padding: 16px 20px;
  cursor: pointer;
  transition: all 0.2s;
  flex: 1 1 160px;
  min-width: 160px;
}

.arch-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.arch-item-name {
  font-weight: 700;
  margin-bottom: 4px;
}

.arch-item-desc {
  font-size: 0.8125rem;
  opacity: 0.85;
}

.arch-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.arch-tag {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.9375rem;
}

/* 标签页 */
.tabs-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 24px;
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 600;
  background: var(--bg-white);
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

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

.tab-btn.active {
  background: var(--brand-blue-light);
  color: #fff;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.4s;
}

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

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

/* 解决方案入口 */
.solution-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}

.solution-card.reverse {
  direction: rtl;
}

.solution-card.reverse > * {
  direction: ltr;
}

.solution-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.08), rgba(45, 212, 191, 0.08));
}

.solution-visual.fde {
  background: linear-gradient(135deg, rgba(30, 58, 95, 0.08), rgba(37, 99, 235, 0.08));
}

.solution-icon {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, var(--brand-cyan), var(--brand-cyan-light));
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.solution-icon.fde {
  background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-light));
}

.solution-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.solution-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* 流程步骤 */
.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.step-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  position: relative;
}

.step-card::after {
  content: '';
  position: absolute;
  top: 32px;
  right: -16px;
  width: 16px;
  height: 2px;
  background: var(--border);
}

.step-card:last-child::after {
  display: none;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--brand-cyan);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 16px;
}

.step-title {
  font-weight: 700;
  margin-bottom: 8px;
}

.step-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* 引用框 */
.quote-box {
  background: rgba(8, 145, 178, 0.08);
  border-left: 4px solid var(--brand-cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 24px 28px;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.quote-box.amber {
  background: rgba(245, 158, 11, 0.08);
  border-left-color: var(--brand-amber);
}

.quote-box.blue {
  background: rgba(37, 99, 235, 0.08);
  border-left-color: var(--brand-blue-light);
}

/* 白帽底线标签 */
.ethics-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

.ethics-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-white);
  border-radius: 9999px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.ethics-tag::before {
  content: '✓';
  color: var(--brand-green);
  font-weight: 700;
}

/* 客户案例/行业 */
.industry-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.industry-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.industry-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.industry-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.industry-tag {
  font-size: 0.8125rem;
  color: var(--brand-cyan);
  font-weight: 600;
}

/* 表单 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.form-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9375rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-blue-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--bg-main);
  border-radius: 8px;
  font-size: 0.875rem;
  cursor: pointer;
}

.radio-item input {
  accent-color: var(--brand-blue-light);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.qr-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
}

.qr-card img {
  max-width: 180px;
  margin: 0 auto 12px;
  border-radius: 8px;
}

.qr-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* 悬浮按钮 */
.fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.fab-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--brand-amber);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
  transition: transform 0.2s;
}

.fab-btn:hover {
  transform: scale(1.05);
}

.fab-menu {
  display: none;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow-xl);
}

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

.fab-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.fab-menu a:hover {
  background: var(--bg-main);
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.open {
  display: flex;
}

.modal,
.modal-box {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.3s;
  position: relative;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.05);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  z-index: 10;
  transition: background 0.2s, color 0.2s;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.1);
}

/* 弹窗内彩色头部上的关闭按钮 */
.modal-box .modal-close {
  color: #fff;
  background: rgba(0, 0, 0, 0.3);
}

.modal-box .modal-close:hover {
  background: rgba(0, 0, 0, 0.5);
}

.modal-body {
  padding: 32px;
}

.modal-body h4 {
  font-size: 1rem;
  margin: 24px 0 12px;
}

.modal-body h4:first-child {
  margin-top: 0;
}

.modal-body p,
.modal-body li {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.modal-body ul {
  list-style: disc;
  padding-left: 20px;
}

/* 页脚 */
.footer {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.footer-brand img {
  height: 40px;
}

.footer-desc {
  font-size: 0.9375rem;
  color: rgba(241, 245, 249, 0.7);
  line-height: 1.7;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 0.9375rem;
  color: rgba(241, 245, 249, 0.7);
  transition: color 0.2s;
}

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

.footer-contact p {
  font-size: 0.9375rem;
  color: rgba(241, 245, 249, 0.7);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-qr {
  max-width: 120px;
  border-radius: 8px;
  margin-top: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: rgba(241, 245, 249, 0.5);
}

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

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

/* 响应式 */
@media (max-width: 1024px) {
  .hero-grid,
  .solution-card,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 400px;
    order: -1;
  }

  .ai-core-wrap {
    max-width: 380px;
  }

  .solution-card.reverse {
    direction: ltr;
  }

  .timeline::before {
    display: none;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

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

  .step-card::after {
    display: none;
  }

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

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 64px 0;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1.0625rem;
  }

  .hero-visual {
    min-height: 340px;
  }

  .ai-core-wrap {
    max-width: 300px;
  }

  .ai-core {
    width: 110px;
    height: 110px;
  }

  .ai-core-logo {
    width: 80px;
    height: 80px;
  }

  .ring-1 { width: 140px; height: 140px; }
  .ring-2 { width: 200px; height: 200px; }
  .ring-3 { width: 270px; height: 270px; }

  .float-card {
    padding: 10px 14px;
    gap: 8px;
  }

  .float-card-icon {
    width: 32px;
    height: 32px;
    font-size: 0.625rem;
  }

  .float-card-title { font-size: 0.75rem; }
  .float-card-desc { font-size: 0.625rem; }

  .float-tag {
    font-size: 0.6875rem;
    padding: 6px 12px;
  }

  .float-card-geo { right: 0; }
  .float-card-fde { left: 0; }
  .float-tag-1 { right: 0; }

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

  .section-title {
    font-size: 1.75rem;
  }

  .cards-grid,
  .cards-grid-2,
  .cards-grid-4,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: transform 0.3s;
  }

  .nav.open {
    transform: translateY(0);
  }

  .nav-link {
    color: var(--text-primary);
    font-size: 1rem;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    background: var(--bg-main);
    margin-top: 8px;
    display: none;
  }

  .dropdown.open .dropdown-menu {
    display: block;
  }

  .header-actions {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .compare-table {
    display: block;
    overflow-x: auto;
  }

  .compare-table thead {
    display: none;
  }

  .compare-table tr {
    display: block;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
  }

  .compare-table td {
    display: block;
    border-bottom: 1px solid var(--border);
  }

  .compare-table td::before {
    content: attr(data-label);
    display: block;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* =====================================================
   新闻资讯页样式
   ===================================================== */

.news-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.news-categories {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.news-search {
  display: flex;
  gap: 8px;
  min-width: 280px;
}

.news-search .form-input {
  flex: 1;
}

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

.news-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

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

.news-card-cover {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: var(--bg-main);
}

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

.news-card-cover-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(8, 145, 178, 0.1), rgba(37, 99, 235, 0.1));
  color: var(--brand-cyan);
  font-weight: 700;
  font-size: 1.5rem;
}

.news-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.news-card-cat {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.news-card-date {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.news-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--text-primary);
}

.news-card-summary {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.news-loading,
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px;
  color: var(--text-secondary);
  font-size: 1rem;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.page-btn {
  min-width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-white);
  color: var(--text-primary);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.2s;
}

.page-btn:hover:not(.active) {
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

.page-btn.active {
  background: var(--brand-cyan);
  color: #fff;
  border-color: var(--brand-cyan);
}

.page-ellipsis {
  display: flex;
  align-items: center;
  color: var(--text-secondary);
}

/* 文章详情 */
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.article-breadcrumb a {
  color: var(--brand-cyan);
  transition: color 0.2s;
}

.article-breadcrumb a:hover {
  text-decoration: underline;
}

.article-detail {
  max-width: 800px;
  margin: 0 auto;
}

.article-header {
  margin-bottom: 32px;
}

.article-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  margin: 16px 0 16px;
  color: var(--text-primary);
}

.article-meta {
  display: flex;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.article-cover {
  margin-bottom: 32px;
  border-radius: var(--radius);
  overflow: hidden;
}

.article-cover img {
  width: 100%;
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-primary);
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 32px 0 16px;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 24px 0 12px;
}

.article-content p {
  margin-bottom: 16px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 16px 24px;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 8px;
}

.article-content ul {
  list-style: disc;
}

.article-content ol {
  list-style: decimal;
}

.article-content strong {
  font-weight: 700;
}

.article-content code {
  background: var(--bg-main);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
  font-family: "SF Mono", "Fira Code", monospace;
}

.article-content pre {
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 16px;
}

.article-content pre code {
  background: none;
  padding: 0;
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

.article-content .md-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

.article-content .md-table th,
.article-content .md-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 0.9375rem;
}

.article-content .md-table th {
  background: var(--bg-main);
  font-weight: 600;
}

.article-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* 深色按钮 outline */
.btn-outline-dark {
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  background: var(--bg-white);
}

.btn-outline-dark:hover {
  background: var(--bg-main);
  border-color: var(--text-secondary);
}

/* =====================================================
   管理后台样式
   ===================================================== */

.admin-body {
  background: #f1f5f9;
}

/* 登录页 */
.admin-login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0f1e 0%, #111e36 50%, #0a1628 100%);
  padding: 24px;
}

.admin-login-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  text-align: center;
}

.admin-login-logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
}

.admin-login-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.admin-login-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.admin-error {
  color: var(--brand-red);
  font-size: 0.875rem;
  min-height: 20px;
  margin-bottom: 12px;
}

/* 管理后台布局 */
.admin-app {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 240px;
  background: var(--bg-dark);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
}

.admin-sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 700;
  font-size: 1.125rem;
}

.admin-sidebar-header img {
  width: 36px;
  height: 36px;
}

.admin-nav {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  color: rgba(241, 245, 249, 0.7);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.2s;
  margin-bottom: 4px;
  cursor: pointer;
}

.admin-nav-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-light);
}

.admin-nav-item.active {
  background: var(--brand-cyan);
  color: #fff;
}

.admin-sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-main {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
  max-width: 100%;
}

.admin-page-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.admin-page-head h2 {
  font-size: 1.75rem;
  font-weight: 700;
}

.admin-page-head p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 仪表盘统计 */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.admin-stat-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.admin-stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-cyan);
  line-height: 1;
  margin-bottom: 8px;
}

.admin-stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.admin-panel {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.admin-panel h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
}

/* 分类统计 */
.admin-cat-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-cat-stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-main);
  border-radius: 8px;
  font-size: 0.9375rem;
}

.admin-cat-stat-count {
  font-weight: 700;
  color: var(--brand-cyan);
}

/* 最近文章 */
.admin-recent-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-recent-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-main);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

.admin-recent-item:hover {
  background: rgba(8, 145, 178, 0.06);
}

.admin-recent-title {
  font-weight: 600;
  font-size: 0.9375rem;
}

.admin-recent-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* 文章管理表格 */
.admin-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
}

.admin-table-wrap {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th {
  background: var(--bg-main);
  padding: 14px 20px;
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.admin-table td {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
}

.admin-table-title {
  font-weight: 600;
  cursor: pointer;
  color: var(--brand-cyan);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.admin-table-title:hover {
  text-decoration: underline;
}

.admin-cat-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(8, 145, 178, 0.1);
  color: var(--brand-cyan);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.admin-status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.admin-status-badge.status-published {
  background: rgba(16, 185, 129, 0.1);
  color: var(--brand-green);
}

.admin-status-badge.status-draft {
  background: rgba(245, 158, 11, 0.1);
  color: var(--brand-amber);
}

.admin-table-actions {
  display: flex;
  gap: 8px;
}

.admin-action-btn {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--bg-white);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.875rem;
}

.admin-action-btn:hover {
  background: var(--bg-main);
}

.admin-action-btn.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--brand-red);
}

/* 编辑器 */
.admin-editor {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  max-width: 900px;
}

.admin-editor-row {
  display: flex;
  gap: 20px;
}

.admin-md-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 8px;
}

.admin-editor-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.admin-editor-toolbar button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-white);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all 0.2s;
}

.admin-editor-toolbar button:hover {
  background: var(--bg-main);
  border-color: var(--brand-cyan);
}

.admin-editor-textarea {
  min-height: 400px;
  font-family: "SF Mono", "Fira Code", "PingFang SC", monospace;
  font-size: 0.9375rem;
  line-height: 1.8;
}

.admin-editor-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* 分类管理 */
.admin-cat-add {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.admin-cat-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-cat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-main);
  border-radius: 8px;
  font-weight: 500;
}

/* Toast */
.admin-toast {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 3000;
  padding: 14px 24px;
  border-radius: 8px;
  background: var(--brand-green);
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform 0.3s;
}

.admin-toast.show {
  transform: translateX(0);
}

.admin-toast.error {
  background: var(--brand-red);
}

/* 管理后台响应式 */
@media (max-width: 1024px) {
  .admin-sidebar {
    width: 60px;
    overflow: hidden;
  }

  .admin-sidebar-header span,
  .admin-nav-item span:not(:first-child) {
    display: none;
  }

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

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

@media (max-width: 768px) {
  .admin-sidebar {
    width: 100%;
    height: auto;
    position: relative;
    flex-direction: row;
    overflow-x: auto;
    padding: 12px;
  }

  .admin-sidebar-header {
    display: none;
  }

  .admin-nav {
    display: flex;
    flex-direction: row;
    padding: 0;
  }

  .admin-nav-item {
    white-space: nowrap;
  }

  .admin-sidebar-footer {
    display: flex;
    border-top: none;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 0 0 12px;
  }

  .admin-app {
    flex-direction: column;
  }

  .admin-main {
    padding: 20px 16px;
  }

  .admin-stats-grid {
    grid-template-columns: 1fr;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .admin-editor-row {
    flex-direction: column;
  }

  .admin-table-wrap {
    overflow-x: auto;
  }

  .news-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .news-search {
    min-width: auto;
  }
}

/* =====================================================
   客户留言管理样式
   ===================================================== */

/* 导航徽标 */
.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--brand-red);
  color: #fff;
  border-radius: 10px;
  font-size: 0.6875rem;
  font-weight: 700;
  margin-left: auto;
  line-height: 1;
}

/* 留言状态徽标 */
.admin-status-badge.msg-status-unread {
  background: rgba(239, 68, 68, 0.1);
  color: var(--brand-red);
}

.admin-status-badge.msg-status-read {
  background: rgba(245, 158, 11, 0.1);
  color: var(--brand-amber);
}

.admin-status-badge.msg-status-replied {
  background: rgba(16, 185, 129, 0.1);
  color: var(--brand-green);
}

.admin-status-badge.msg-status-archived {
  background: rgba(100, 116, 139, 0.1);
  color: #64748b;
}

/* 留言详情弹窗 */
.msg-detail {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.msg-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

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

.msg-detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.msg-detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.msg-detail-value {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
}

.msg-detail-message {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.msg-detail-content {
  padding: 16px;
  background: var(--bg-main);
  border-radius: 8px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

.msg-reply-section {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg-reply-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

/* 表单反馈提示 */
#formFeedback {
  border-radius: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 16px;
}

/* 留言管理响应式 */
@media (max-width: 768px) {
  .msg-detail-grid {
    grid-template-columns: 1fr;
  }

  .msg-reply-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .msg-reply-actions .btn,
  .msg-reply-actions .form-select {
    width: 100%;
  }
}

/* =====================================================
   Skill 商城样式
   ===================================================== */

.mall-filter-bar {
  margin-bottom: 24px;
}

.mall-categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.mall-cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-white);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.mall-cat-btn:hover {
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

.mall-cat-btn.active {
  background: var(--brand-cyan);
  color: #fff;
  border-color: var(--brand-cyan);
}

.mall-cat-btn .count {
  font-size: 0.75rem;
  opacity: 0.7;
  font-weight: 600;
}

.mall-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.mall-search-wrap {
  position: relative;
  flex: 1;
  max-width: 360px;
}

.mall-search {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9375rem;
  background: var(--bg-white);
  transition: border-color 0.2s;
}

.mall-search:focus {
  outline: none;
  border-color: var(--brand-cyan);
}

.mall-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9375rem;
  opacity: 0.5;
}

.mall-filter-select {
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  background: var(--bg-white);
  cursor: pointer;
  min-width: 140px;
}

.mall-filter-select:focus {
  outline: none;
  border-color: var(--brand-cyan);
}

.mall-result-info {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.mall-result-info strong {
  color: var(--brand-cyan);
  font-size: 1rem;
}

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

.skill-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
}

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

.skill-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
}

.skill-card-cat {
  opacity: 0.95;
}

.skill-card-seq {
  opacity: 0.7;
  font-weight: 400;
}

.skill-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.skill-card-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.skill-card-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--text-primary);
}

.skill-card-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.skill-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--bg-main);
  border-radius: 6px;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.mall-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.mall-empty {
  text-align: center;
  padding: 60px;
  color: var(--text-secondary);
}

.mall-empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

/* Skill 详情弹窗 */
.modal-skill {
  max-width: 600px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
}

.skill-modal-top {
  padding: 28px 32px;
  color: #fff;
  margin: -32px -32px 24px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.skill-modal-cat {
  font-size: 0.8125rem;
  opacity: 0.85;
  margin-bottom: 8px;
}

.skill-modal-name {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.skill-modal-seq {
  font-size: 0.8125rem;
  opacity: 0.7;
}

.skill-modal-body {
  padding: 0;
}

.skill-modal-section {
  margin-bottom: 24px;
}

.skill-modal-section h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.skill-modal-section p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-primary);
}

.skill-modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.skill-modal-item {
  padding: 16px;
  background: var(--bg-main);
  border-radius: 8px;
}

.skill-modal-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.skill-modal-value {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-modal-cta {
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.skill-modal-cta p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* =====================================================
   客户案例样式
   ===================================================== */

.case-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.case-industries {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.case-ind-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-white);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.case-ind-btn:hover {
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

.case-ind-btn.active {
  background: var(--brand-cyan);
  color: #fff;
  border-color: var(--brand-cyan);
}

.case-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.case-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  overflow: hidden;
}

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

.case-card-header {
  padding: 24px 28px 16px;
}

.case-card-meta {
  display: flex;
  gap: 12px;
  margin-bottom: 8px;
  font-size: 0.8125rem;
}

.case-card-industry {
  font-weight: 700;
}

.case-card-platform {
  color: var(--text-secondary);
}

.case-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--text-primary);
}

.case-card-summary {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-card-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 0 28px 16px;
}

.case-metric {
  text-align: center;
  padding: 12px;
  border-right: 1px solid var(--border);
}

.case-metric:last-child {
  border-right: none;
}

.case-metric-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--brand-cyan);
  line-height: 1.2;
}

.case-metric-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.case-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  border-top: 1px solid var(--border);
}

.case-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.case-tag {
  padding: 3px 10px;
  background: rgba(8, 145, 178, 0.08);
  color: var(--brand-cyan);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.case-card-link {
  font-size: 0.875rem;
  color: var(--brand-cyan);
  font-weight: 600;
  white-space: nowrap;
}

/* 案例详情弹窗 */
.modal-case {
  max-width: 700px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px;
}

.case-modal-top {
  padding: 32px;
  color: #fff;
  margin: -32px -32px 24px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.case-modal-meta {
  display: flex;
  gap: 16px;
  font-size: 0.875rem;
  opacity: 0.85;
  margin-bottom: 12px;
}

.case-modal-top h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.case-modal-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.case-modal-tags .case-tag {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.case-modal-body {
  padding: 0;
}

.case-modal-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.case-modal-metric {
  padding: 16px;
  background: var(--bg-main);
  border-radius: 8px;
  text-align: center;
}

.case-modal-metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-cyan);
}

.case-modal-metric-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.case-modal-section {
  margin-bottom: 24px;
}

.case-modal-section h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.case-modal-section p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.case-modal-cta {
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.case-modal-cta p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* 商城与案例响应式 */
@media (max-width: 1024px) {
  .mall-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .case-metric:nth-child(2) {
    border-right: none;
  }
}

@media (max-width: 768px) {
  .mall-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mall-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .mall-search-wrap {
    max-width: none;
  }

  .mall-filter-select {
    min-width: auto;
  }

  .case-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

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

  .case-metric:nth-child(2) {
    border-right: none;
  }

  .skill-modal-grid {
    grid-template-columns: 1fr;
  }

  .case-modal-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .mall-grid {
    grid-template-columns: 1fr;
  }
}

/* =====================================================
   网站内容管理样式
   ===================================================== */

.admin-config-section {
  margin-bottom: 32px;
}

.admin-config-section h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.admin-config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.admin-config-actions {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
}

@media (max-width: 768px) {
  .admin-config-grid {
    grid-template-columns: 1fr;
  }
}