/* ============================================
   深圳市帆豆科技有限公司 - 企业官网样式表
   设计风格：简约大气
   ============================================ */

/* ===== CSS 变量 ===== */
:root {
  --color-primary: #0a2540;
  --color-primary-light: #1a3a5c;
  --color-accent: #2563eb;
  --color-accent-light: #3b82f6;
  --color-accent-dark: #1d4ed8;
  --color-cyan: #06b6d4;
  --color-bg: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-gray: #f1f5f9;
  --color-text: #0f172a;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 48px rgba(10, 37, 64, 0.15);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul,
ol {
  list-style: none;
}

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

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

.section {
  padding: 84px 0;
}

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

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

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

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

/* ===== 排版 ===== */
.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-title.light {
  color: var(--color-white);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.section-subtitle.light {
  color: rgba(255, 255, 255, 0.7);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 20px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
  font-weight: 800;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text .logo-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.logo-text .logo-en {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-single {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu a {
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

.nav-menu a:hover {
  color: var(--color-accent);
  background: rgba(37, 99, 235, 0.06);
}

.nav-menu a.active {
  color: var(--color-accent);
}

.nav-menu a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.nav-cta {
  padding: 10px 24px !important;
  background: var(--color-accent);
  color: white !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  color: white !important;
}

.nav-cta.active::after {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

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

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

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

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

/* ===== 语言切换器（多语言）===== */
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switcher {
  position: relative;
  font-size: 0.9rem;
}

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  font: inherit;
  line-height: 1;
}

.lang-current:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.lang-flag {
  font-size: 1.05rem;
  line-height: 1;
}

.lang-name {
  font-weight: 500;
  white-space: nowrap;
}

.lang-caret {
  transition: transform 0.25s ease;
}

.lang-switcher.open .lang-caret {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 172px;
  padding: 6px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.2s ease;
  z-index: 1200;
}

.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border: none;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font: inherit;
  text-align: left;
  transition: background 0.15s ease;
}

.lang-option:hover {
  background: rgba(37, 99, 235, 0.08);
}

.lang-option.selected {
  color: var(--color-accent);
  font-weight: 600;
  background: rgba(37, 99, 235, 0.06);
}

/* 移动端：切换器与汉堡按钮靠右，仅显示旗帜节省空间 */
@media (max-width: 968px) {
  .nav-right {
    margin-left: auto;
  }
  .lang-name {
    display: none;
  }
  .lang-current {
    padding: 7px 9px;
  }
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

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

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.btn-outline-dark:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.0625rem;
}

/* ===== Hero 区 ===== */
.hero {
  position: relative;
  min-height: clamp(540px, 80vh, 760px);
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0a2540 0%, #0f2b46 40%, #143a5e 100%);
  overflow: hidden;
  padding-top: var(--header-height);
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

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

.hero-content {
  max-width: 880px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 24px;
  font-size: 0.875rem;
  color: #93c5fd;
  margin-bottom: 28px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--color-cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #60a5fa, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1875rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

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

.hero-stats {
  display: flex;
  gap: clamp(40px, 6vw, 96px);
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  justify-content: center;
}

.hero-stat .stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  line-height: 1;
}

.hero-stat .stat-num .unit {
  font-size: 1.25rem;
  color: var(--color-cyan);
}

.hero-stat .stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 8px;
}

/* ===== 页面 Banner ===== */
.page-banner {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(135deg, #0a2540 0%, #0f2b46 50%, #143a5e 100%);
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
}

.page-banner .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
}

.page-banner .breadcrumb a:hover {
  color: var(--color-cyan);
}

.page-banner .breadcrumb .separator {
  opacity: 0.4;
}

.page-banner .breadcrumb .current {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== 卡片网格 ===== */
.grid {
  display: grid;
  gap: 28px;
}

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

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

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

/* ===== 通用卡片 ===== */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* ===== 关于简介区 ===== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-intro-image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: linear-gradient(135deg, #0a2540, #1a3a5c);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 340px;
  align-self: stretch;
}

.about-intro-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

.about-intro-image .chip-svg {
  position: relative;
  z-index: 2;
  width: 72%;
  height: auto;
}

.about-intro-content .section-tag {
  margin-bottom: 16px;
}

.about-intro-content h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.3;
}

.about-intro-content p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.9;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.about-feature .check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.about-feature .check svg {
  width: 14px;
  height: 14px;
}

.about-feature span {
  font-size: 0.9375rem;
  color: var(--color-text);
  font-weight: 500;
}

/* ===== 核心业务卡片 ===== */
.service-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.service-card-header {
  padding: 36px 36px 24px;
  position: relative;
}

.service-card-number {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text-muted);
  line-height: 1;
}

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card-icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card .desc {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 0;
}

.service-card-body {
  padding: 0 36px 36px;
}

.service-card-body ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-card-body li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.service-card-body li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* ===== 优势区 ===== */
.advantage-card {
  text-align: center;
  padding: 40px 28px;
}

.advantage-card .adv-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.08));
}

.advantage-card .adv-icon svg {
  width: 32px;
  height: 32px;
}

.advantage-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ===== 合作流程 ===== */
.process-section {
  background: var(--color-primary);
  color: white;
  position: relative;
  overflow: hidden;
}

.process-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 50px 50px;
}

.process-section .container {
  position: relative;
  z-index: 2;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-timeline::before {
  content: "";
  position: absolute;
  top: 36px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, rgba(37,99,235,0.5), rgba(6,182,212,0.5), rgba(37,99,235,0.5));
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step-num {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-cyan);
  position: relative;
  z-index: 2;
}

.process-step h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* ===== CTA 区 ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: 2rem;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.cta-text p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.0625rem;
}

.cta-section .btn {
  background: white;
  color: var(--color-accent);
}

.cta-section .btn:hover {
  background: var(--color-bg-light);
  transform: translateY(-2px);
}

/* ===== 关于我们页面 ===== */
.story-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.story-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 5 / 4;
  background: linear-gradient(135deg, #0a2540, #143a5e);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.story-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.story-content p {
  color: var(--color-text-muted);
  margin-bottom: 18px;
  line-height: 1.9;
}

/* 发展历程 */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  padding-bottom: 40px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: 12px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--color-accent);
}

.timeline-year {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* 团队卡片 */
.team-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.team-avatar {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.3);
  font-weight: 800;
}

.team-info {
  padding: 24px;
  text-align: center;
}

.team-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-info .role {
  font-size: 0.875rem;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.team-info p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* 企业文化 */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.culture-card {
  text-align: center;
  padding: 48px 32px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.culture-card .culture-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
}

.culture-card .culture-icon svg {
  width: 30px;
  height: 30px;
  color: white;
}

.culture-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.culture-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* ===== 产品服务页面 ===== */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 80px;
}

.service-detail:nth-child(even) .service-detail-image {
  order: 2;
}

.service-detail:last-child {
  margin-bottom: 0;
}

.service-detail-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 5 / 4;
  background: linear-gradient(135deg, #0a2540, #143a5e);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.service-detail-image .image-icon {
  position: relative;
  z-index: 2;
  width: 50%;
}

.service-detail-content .section-tag {
  margin-bottom: 16px;
}

.service-detail-content h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.service-detail-content > p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  line-height: 1.9;
}

.service-detail-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.service-detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.service-detail-list li .check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.service-detail-list li .check svg {
  width: 12px;
  height: 12px;
}

/* 技术能力 */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.tech-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.tech-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.tech-card .tech-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(6, 182, 212, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
}

.tech-card .tech-icon svg {
  width: 28px;
  height: 28px;
}

.tech-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tech-card p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* 应用领域 */
.field-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.field-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  padding: 40px 32px;
  color: white;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: var(--transition);
}

.field-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}

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

.field-card .field-icon {
  position: relative;
  z-index: 2;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.field-card .field-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-cyan);
}

.field-card h3 {
  position: relative;
  z-index: 2;
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.field-card p {
  position: relative;
  z-index: 2;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
}

/* ===== 联系我们页面 ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--color-primary), #143a5e);
  border-radius: var(--radius-xl);
  padding: 48px;
  color: white;
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.contact-info-card h3 {
  position: relative;
  z-index: 2;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-info-card > p {
  position: relative;
  z-index: 2;
  color: rgba(255,255,255,0.7);
  margin-bottom: 40px;
  font-size: 0.9375rem;
}

.contact-info-list {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.contact-info-item .ci-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-item .ci-icon svg {
  width: 20px;
  height: 20px;
  color: var(--color-cyan);
}

.contact-info-item .ci-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}

.contact-info-item .ci-value {
  font-size: 1rem;
  font-weight: 500;
  color: white;
}

/* ===== 微信咨询专区 ===== */
.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  max-width: 640px;
  margin: 12px auto 0;
  line-height: 1.7;
}

.wechat-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: center;
  max-width: 920px;
  margin: 0 auto;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.wechat-card::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(7, 193, 96, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.wechat-qr-wrap {
  position: relative;
  width: 240px;
  height: 240px;
  padding: 16px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.wechat-qr-frame {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wechat-qr-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.wechat-qr-corner {
  position: absolute;
  width: 28px;
  height: 28px;
  border: 3px solid #07c160;
  pointer-events: none;
}
.wechat-qr-corner.tl { top: 0;    left: 0;    border-right: none;  border-bottom: none; border-top-left-radius: 8px; }
.wechat-qr-corner.tr { top: 0;    right: 0;   border-left:  none;  border-bottom: none; border-top-right-radius: 8px; }
.wechat-qr-corner.bl { bottom: 0; left: 0;    border-right: none;  border-top:    none; border-bottom-left-radius: 8px; }
.wechat-qr-corner.br { bottom: 0; right: 0;   border-left:  none;  border-top:    none; border-bottom-right-radius: 8px; }

.wechat-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.wechat-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(7, 193, 96, 0.1);
  color: #047857;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  width: fit-content;
}

.wechat-badge svg {
  color: #07c160;
}

.wechat-name {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 4px 0 0;
}

.wechat-role {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin: 0 0 12px;
}

.wechat-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 8px 0 4px;
  padding: 0;
}

.wechat-steps li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #07c160, #05a050);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.wechat-steps li > div {
  flex: 1;
}

.wechat-steps li strong {
  display: block;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.wechat-steps li p {
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  margin: 0;
  line-height: 1.5;
}

.wechat-tip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(245, 158, 11, 0.08);
  color: #b45309;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  width: fit-content;
}

.wechat-tip svg {
  flex-shrink: 0;
}

/* 联系表单 */
.contact-form-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 48px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-form-card > p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
  font-size: 0.9375rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group label .required {
  color: #dc2626;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-light);
  color: var(--color-text);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background: white;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748b' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

.form-success {
  display: none;
  padding: 16px 20px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-sm);
  color: #16a34a;
  font-size: 0.9375rem;
  margin-bottom: 20px;
  align-items: center;
  gap: 10px;
}

.form-success.show {
  display: flex;
}

/* 地图区 */
.map-section {
  padding: 0;
}

.map-embed {
  width: 100%;
  height: 420px;
  background: var(--color-bg-gray);
  border-radius: 0;
  overflow: hidden;
  position: relative;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
}

.map-placeholder svg {
  width: 64px;
  height: 64px;
  color: var(--color-text-light);
}

.map-placeholder p {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* ===== 案例展示 ===== */
.cases-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.cases-filter .btn {
  padding: 10px 22px;
  font-size: 0.875rem;
}

.cases-filter .btn.active {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

/* 案例展示：7 大组 -> 子分类 层级筛选 */
#casesFilter {
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}
#casesFilter > .filter-btn {
  align-self: flex-start;
}
.cases-filter-group {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding: 12px 16px;
  background: color-mix(in srgb, var(--color-accent) 4%, white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.cases-filter-group-label {
  flex: 0 0 auto;
  align-self: center;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  background: white;
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, white);
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}
.cases-filter-group-label:hover {
  border-color: var(--color-accent);
}
.cases-filter-group-label.active {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}
.cases-filter-sub {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

/* 技术分享：主题 + 类型 双行筛选 */
.tech-filter-block {
  margin-bottom: 40px;
}
.tech-filter-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.tech-filter-row:last-child {
  margin-bottom: 0;
}
.tech-filter-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  min-width: 36px;
  text-align: right;
}
.tech-filter-row .cases-filter {
  flex: 1;
  justify-content: flex-start;
}
.tech-type-btn {
  padding: 7px 16px !important;
  font-size: 0.8rem !important;
  border-style: dashed;
}
.tech-type-btn.active {
  border-style: solid;
}
.tech-type-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 999px;
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-accent) 12%, white);
  border: 1px solid color-mix(in srgb, var(--color-accent) 28%, white);
}

.case-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  cursor: pointer;
}

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

.case-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #0a2540, #143a5e);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.case-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 30px 30px;
}

.case-image svg {
  width: 40%;
  height: auto;
  position: relative;
  z-index: 2;
}

.case-body {
  padding: 28px;
}

.case-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  padding: 4px 12px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 20px;
}

.case-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.case-card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

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

.case-tags span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background: var(--color-bg-light);
  padding: 4px 10px;
  border-radius: 4px;
}

/* 真实图片封面 */
.case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 2;
}

/* ===== 案例详情页 ===== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 28px;
  transition: gap 0.2s ease;
}
.back-link:hover { gap: 10px; }

.case-detail-hero {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border, #e6ebf2);
  border-radius: 16px;
  padding: 32px;
}

.case-detail-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #0a2540, #143a5e);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.case-detail-img-el {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case-detail-img svg {
  width: 45%;
  height: auto;
}

.case-detail-head h1 {
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 800;
  color: var(--color-text);
  margin: 14px 0 16px;
  line-height: 1.3;
}
.case-detail-summary {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.case-detail-head .case-tags { margin-top: 4px; }

.case-detail-body {
  margin-top: 44px;
}
.case-detail-subtitle {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
}
.case-detail-body p {
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--color-text);
  margin-bottom: 18px;
}
.case-detail-h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 32px 0 14px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
  line-height: 1.5;
}
/* 引导段：首块无子标题的内容，高亮卡片 */
.case-detail-lead {
  margin: 8px 0 28px;
  padding: 22px 26px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.07) 0%, rgba(6, 182, 212, 0.05) 100%);
  border-left: 4px solid var(--color-accent);
  border-radius: 10px;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--color-text);
}
.case-detail-lead p { margin: 0; }

/* 内容区段卡片：每个 ## 子标题 + 内容包成一张卡 */
.case-detail-section {
  margin: 22px 0;
  padding: 22px 26px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
  transition: box-shadow .2s ease, transform .2s ease;
}
.case-detail-section:hover {
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}
.case-detail-section .case-detail-h3 {
  margin: 0 0 16px;
  padding: 0 0 0 12px;
  border-left: 3px solid var(--color-accent);
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text);
}
.case-detail-section .case-detail-list { margin-bottom: 0; }
.case-detail-section .case-detail-table-wrap { margin-bottom: 0; }

@media (max-width: 640px) {
  .case-detail-lead,
  .case-detail-section {
    padding: 18px 16px;
    margin: 16px 0;
    border-radius: 8px;
  }
  .case-detail-lead { font-size: 1rem; }
}
.case-detail-list {
  margin: 0 0 18px 0;
  padding-left: 22px;
  list-style: disc;
}
.case-detail-list li {
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--color-text);
  margin-bottom: 6px;
}
.case-detail-list li::marker {
  color: var(--color-accent);
}
.case-detail-table-wrap {
  margin: 0 0 22px 0;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  -webkit-overflow-scrolling: touch;
}
.case-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  background: #fff;
  min-width: 480px;
}
.case-detail-table th,
.case-detail-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  line-height: 1.6;
}
.case-detail-table th {
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  white-space: nowrap;
}
.case-detail-table tr:last-child td {
  border-bottom: none;
}
.case-detail-table tr:nth-child(even) td {
  background: rgba(37, 99, 235, 0.04);
}
.case-detail-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  width: 30%;
}
.case-detail-note {
  margin-top: 28px;
  padding: 20px 24px;
  background: rgba(37, 99, 235, 0.06);
  border-left: 4px solid var(--color-accent);
  border-radius: 8px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.85;
}
.case-detail-missing {
  text-align: center;
  padding: 60px 0;
}
.case-detail-missing h2 { font-size: 1.5rem; margin-bottom: 12px; }
.case-detail-missing a { color: var(--color-accent); font-weight: 600; }

@media (max-width: 768px) {
  .case-detail-hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 20px;
  }
  .case-detail-img { aspect-ratio: 16 / 10; }
}

/* 详情页容器与相关文章 */
.case-detail-wrap { margin-bottom: 8px; }
.case-detail-related { margin-top: 56px; }
.tech-content-list {
  margin: 0 0 18px;
  padding-left: 22px;
  list-style: disc;
}
.tech-content-list li {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 8px;
  padding-left: 4px;
}

/* 隐藏已废弃的弹窗（改用独立详情页） */
.case-modal { display: none !important; }

/* ===== 案例弹窗 ===== */
.case-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.case-modal.active {
  display: flex;
}

.case-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 37, 64, 0.7);
  backdrop-filter: blur(4px);
}

.case-modal-content {
  position: relative;
  background: white;
  border-radius: var(--radius-xl);
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 2;
  box-shadow: var(--shadow-xl);
}

.case-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--color-bg-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  transition: var(--transition);
}

.case-modal-close:hover {
  background: var(--color-border);
}

.case-modal-close svg {
  width: 20px;
  height: 20px;
}

.case-modal-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #0a2540, #143a5e);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.case-modal-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.case-modal-image svg {
  width: 35%;
  position: relative;
  z-index: 2;
}

.case-modal-text {
  padding: 36px;
}

.case-modal-text .case-category {
  margin-bottom: 12px;
}

.case-modal-text h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.case-modal-text p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 24px;
}

.case-modal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo {
  color: white;
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--color-accent);
}

.footer-social svg {
  width: 18px;
  height: 18px;
  color: rgba(255,255,255,0.7);
}

.footer-social a:hover svg {
  color: white;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}

.footer-col ul a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a:hover {
  color: var(--color-cyan);
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  border: none;
  box-shadow: var(--shadow-lg);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-accent-dark);
  transform: translateY(-4px);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ===== 页脚社交按钮 =微信二维码弹窗 ===== */
/* 让微信触发按钮和 a 看起来一致（WeChat 是 <button>，其他两个是 <a>） */
.footer-social .footer-social-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 0;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: rgba(255,255,255,0.7);
}
.footer-social .footer-social-btn:hover {
  background: var(--color-accent);
  color: white;
}
.footer-social .footer-social-btn:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

/* 微信二维码弹窗 */
.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.wechat-modal[hidden] {
  display: none;
}
.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 17, 35, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: wechatModalFade 0.2s ease;
}
.wechat-modal-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 360px;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: 32px 28px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  text-align: center;
  animation: wechatModalPop 0.22s cubic-bezier(.2,.8,.2,1);
}
.wechat-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted, #64748b);
  transition: var(--transition);
}
.wechat-modal-close:hover {
  background: var(--color-bg-light, #f8fafc);
  color: var(--color-text, #0f172a);
}
.wechat-modal-close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.wechat-modal-close svg {
  width: 18px;
  height: 18px;
}
.wechat-modal-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(7, 193, 96, 0.12);
  color: #07c160;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.wechat-modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text, #0f172a);
  margin: 4px 0 16px;
}
.wechat-modal-qrwrap {
  width: 220px;
  height: 220px;
  margin: 0 auto 16px;
  padding: 12px;
  background: white;
  border: 1px solid var(--color-border, #e2e8f0);
  border-radius: var(--radius-lg, 16px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}
.wechat-modal-qr {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.wechat-modal-hint {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted, #64748b);
}
@keyframes wechatModalFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes wechatModalPop {
  from { opacity: 0; transform: translateY(8px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
@media (max-width: 480px) {
  .wechat-modal-card { padding: 24px 20px 22px; }
  .wechat-modal-qrwrap { width: 200px; height: 200px; }
}

/* ===== 动画 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 968px) {
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu a {
    width: 100%;
    padding: 12px 16px;
  }

  .nav-cta {
    text-align: center;
    margin-top: 8px;
  }

  .nav-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

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

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .hero-stat .stat-num {
    font-size: 1.75rem;
  }

  .section {
    padding: 64px 0;
  }

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

  .about-intro,
  .story-section,
  .service-detail {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-detail:nth-child(even) .service-detail-image {
    order: 0;
  }

  .grid-3,
  .grid-4,
  .culture-grid,
  .field-grid,
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .process-timeline::before {
    display: none;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .wechat-card {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 36px 28px;
    text-align: center;
  }

  .wechat-qr-wrap {
    margin: 0 auto;
  }

  .wechat-badge,
  .wechat-tip {
    margin-left: auto;
    margin-right: auto;
  }

  .wechat-steps li {
    text-align: left;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-banner h1 {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 20px;
  }

  .hero h1 {
    font-size: 1.875rem;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .grid-3,
  .grid-4,
  .culture-grid,
  .field-grid,
  .tech-grid,
  .process-timeline,
  .footer-grid,
  .about-features,
  .form-row {
    grid-template-columns: 1fr;
  }

  .card,
  .service-card-header,
  .service-card-body {
    padding: 24px;
  }

  .contact-info-card,
  .contact-form-card {
    padding: 32px 24px;
  }

  .section-title {
    font-size: 1.5rem;
  }
}

/* ===== 技术交流专属样式 ===== */
.tech-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tech-date {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.tech-card-item .case-body h3 {
  margin-top: 0;
}

/* ===== 全站自适应增强 ===== */
/* 流体字号：桌面到手机平滑缩放，避免断点处突兀跳变 */
.hero h1 {
  font-size: clamp(1.875rem, 1.2rem + 3.6vw, 3.5rem);
}

.page-banner h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem);
}

.section-title {
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.25rem);
}

.cta-text h2 {
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2rem);
}

/* 长内容自动换行，防止横向溢出 */
body {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* 导航项较多时，移动端下拉可滚动 */
@media (max-width: 968px) {
  .nav-menu {
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .tech-meta {
    margin-bottom: 10px;
  }

  /* 文章弹窗在小屏更紧凑 */
  .case-modal {
    padding: 16px;
  }

  .case-modal-text {
    padding: 24px 20px;
  }

  .case-modal-image {
    aspect-ratio: 16 / 7;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 56px 0;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 64px;
  }

  .hero-stats {
    gap: 16px;
  }

  .page-banner {
    padding: 132px 0 56px;
  }

  /* 微信专区在小屏更紧凑 */
  .wechat-card {
    padding: 28px 20px;
  }

  .wechat-qr-wrap {
    width: 200px;
    height: 200px;
    padding: 12px;
  }

  .wechat-name {
    font-size: 1.5rem;
  }

  /* 案例 / 文章卡片标题与间距收紧 */
  .case-card h3,
  .case-modal-text h2 {
    font-size: 1.0625rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    padding: 12px 22px;
    font-size: 0.9375rem;
  }

  .cta-inner {
    gap: 20px;
  }
}

/* 大屏超宽屏限制内容宽度，避免元素过度拉伸 */
@media (min-width: 1600px) {
  :root {
    --max-width: 1320px;
  }
}

/* ===== 列表分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 48px;
}

.pager-info {
  margin-right: auto;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.pager-inner {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pager-btn {
  min-width: 42px;
  height: 42px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pager-btn:hover:not(.disabled):not(.active) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.pager-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  cursor: default;
}

.pager-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.pager-ellipsis {
  min-width: 22px;
  text-align: center;
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .pagination {
    gap: 8px;
  }
  .pager-info {
    width: 100%;
    margin-right: 0;
    text-align: center;
  }
  .pager-inner {
    width: 100%;
    justify-content: center;
  }
  .pager-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
  }
}

/* ===== 技术分享详情：结构化区块（语音芯片等功能参数/应用场景/案例/BOM） ===== */
.tech-block { margin-top: 48px; }
.tech-block-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}
.tech-block-ico { color: var(--color-primary); font-size: 1.05rem; line-height: 1; }
.tech-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.tech-spec-table, .tech-bom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.tech-spec-table th, .tech-spec-table td,
.tech-bom-table th, .tech-bom-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.tech-spec-table th {
  width: 30%;
  min-width: 120px;
  background: var(--color-bg-light);
  color: var(--color-text-muted);
  font-weight: 600;
  white-space: nowrap;
}
.tech-spec-table td { color: var(--color-text); }
.tech-bom-table thead th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
}
.tech-bom-table tbody tr:nth-child(even) { background: var(--color-bg-light); }
.bom-part { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-weight: 600; color: var(--color-primary); }
.bom-qty { text-align: center; white-space: nowrap; }
.bom-ref { font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--color-text-muted); }
.tech-app-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.tech-app-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--color-text);
}
.tech-app-ico { color: var(--color-cyan); font-size: 0.7rem; }
.tech-case {
  background: linear-gradient(135deg, rgba(37,99,235,0.05), rgba(6,182,212,0.05));
  border-left: 4px solid var(--color-cyan);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}
.tech-case p { margin: 0 0 12px; line-height: 1.8; }
.tech-case ul { margin: 0; padding-left: 20px; }
.tech-case li { margin-bottom: 8px; line-height: 1.7; }
.tech-bom-note { margin-top: 12px; font-size: 0.85rem; color: var(--color-text-muted); }

/* 语音词条（离线识别芯片） */
.vw-max { margin: 8px 0 18px; font-size: 0.95rem; color: var(--color-text); }
.vw-max b { color: var(--color-primary); font-size: 1.1rem; }
.vw-sub { font-size: 0.85rem; font-weight: 600; color: var(--color-text-muted); margin: 4px 0 10px; letter-spacing: 0.5px; }
.vw-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.vw-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 22px;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: border-color 0.15s, background 0.15s;
}
.vw-chip:hover { border-color: var(--color-primary); background: rgba(37, 99, 235, 0.06); }
.vw-chip-wake { background: rgba(6, 182, 212, 0.1); border-color: rgba(6, 182, 212, 0.35); color: #0e7490; font-weight: 600; }
.vw-group { margin-top: 18px; }
.vw-group:first-of-type { margin-top: 6px; }
.vw-scene {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 4px 12px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 8px;
  margin-bottom: 12px;
}

@media (max-width: 768px) {
  .tech-block-title { font-size: 1.3rem; }
  .tech-spec-table th { width: 38%; }
  .vw-chip { font-size: 0.85rem; padding: 6px 13px; }
}

/* 地域落地页 / 热门服务城市 内链 chip（本地 SEO Hub & Spoke） */
.city-chip {
  display: inline-block;
  padding: 7px 15px;
  margin: 5px 4px;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  color: #0f172a;
  text-decoration: none;
  font-size: 14px;
  transition: .15s;
}
.city-chip:hover {
  border-color: #2563eb;
  color: #2563eb;
  background: rgba(37, 99, 235, .06);
}

/* ===== 导航栏站内搜索框 ===== */
.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg-light, #f1f5f9);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 3px 3px 3px 10px;
  width: 200px;
  flex-shrink: 0;
  transition: border-color .15s, box-shadow .15s;
}
.nav-search:focus-within { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.nav-search-icon { color: var(--color-text-muted); flex-shrink: 0; }
.nav-search-input {
  border: none;
  background: transparent;
  outline: none;
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: .9rem;
  color: var(--color-text);
}
.nav-search-input::placeholder { color: var(--color-text-muted); }
.nav-search-input::-webkit-search-cancel-button { cursor: pointer; }
.nav-search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  width: 30px;
  height: 30px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .15s;
}
.nav-search-btn:hover { background: var(--color-accent-dark, #1d4ed8); }

@media (max-width: 968px) {
  .nav-search { width: 150px; padding-left: 8px; }
  .nav-search-input { font-size: .82rem; }
}
@media (max-width: 640px) {
  .nav-search { width: 124px; }
  .nav-search-btn { width: 28px; height: 28px; }
}
@media (max-width: 480px) {
  .nav-search { width: 96px; padding-left: 6px; gap: 4px; }
  .nav-search-input { font-size: .78rem; }
  .nav-search-btn { width: 26px; height: 26px; }
}

/* ===== 搜索结果页 ===== */
.search-hero {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 32px;
  text-align: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, .06), rgba(6, 182, 212, .06));
}
.search-title { font-size: 2.2rem; margin: 10px 0 8px; }
.search-sub { color: var(--color-text-muted); font-size: 1rem; margin: 0 auto 28px; max-width: 640px; line-height: 1.6; }

.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 680px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 8px 8px 18px;
  box-shadow: var(--shadow-md, 0 4px 16px rgba(0, 0, 0, .08));
}
.search-bar:focus-within { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(37, 99, 235, .12); }
.search-bar-icon { color: var(--color-text-muted); flex-shrink: 0; }
.search-bar-input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font: inherit;
  font-size: 1.05rem;
  color: var(--color-text);
}
.search-bar-input::placeholder { color: var(--color-text-muted); }
.search-bar-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  background: var(--color-accent);
  color: #fff;
  border-radius: 999px;
  padding: 10px 22px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .15s;
}
.search-bar-btn:hover { background: var(--color-accent-dark, #1d4ed8); }

.search-stats { color: var(--color-text-muted); font-size: .95rem; margin-bottom: 22px; }
.search-stats-q { color: var(--color-text); font-weight: 600; }
.search-stats strong { color: var(--color-accent); }

.search-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.search-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.search-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, .1));
  border-color: var(--color-accent);
}
.search-card-badge {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.search-card-badge--case { background: rgba(37, 99, 235, .1); color: var(--color-accent); }
.search-card-badge--tech { background: rgba(6, 182, 212, .12); color: #0891b2; }
.search-card-cat { font-size: .8rem; color: var(--color-text-muted); margin-bottom: 6px; }
.search-card-title { font-size: 1.1rem; margin: 0 0 8px; line-height: 1.4; }
.search-card-summary { font-size: .9rem; color: var(--color-text-muted); line-height: 1.65; margin: 0; }
mark { background: rgba(250, 204, 21, .55); color: inherit; border-radius: 3px; padding: 0 1px; }

.search-empty { text-align: center; padding: 70px 20px; color: var(--color-text-muted); }
.search-empty-icon { color: var(--color-border); margin-bottom: 16px; }
.search-empty-text { font-size: 1.05rem; margin: 0 0 8px; color: var(--color-text); }
.search-empty-hint { margin: 0 0 20px; }
.search-empty-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.search-more-btn {
  display: block;
  margin: 28px auto 0;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  border-radius: 999px;
  padding: 10px 28px;
  font: inherit;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: .15s;
}
.search-more-btn:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(37, 99, 235, .05); }

@media (max-width: 640px) {
  .search-title { font-size: 1.7rem; }
  .search-bar-btn span { display: none; }
  .search-bar-btn { padding: 10px 14px; }
  .search-results-grid { grid-template-columns: 1fr; }
}