/* ========== 设计变量 ========== */
:root {
  --primary: #2563EB;
  --primary-light: #EFF6FF;
  --primary-dark: #1E40AF;
  --accent: #D97706;
  --accent-light: #FEF3C7;
  --fg: #0F172A;
  --secondary: #475569;
  --muted: #94A3B8;
  --border: #E2E8F0;
  --bg: #F8FAFC;
  --card-bg: #ffffff;
  --radius: 1rem;
  --radius-lg: 1.25rem;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-xl: 0 20px 48px rgba(15, 23, 42, 0.10);
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.7;
  font-feature-settings: "tnum";
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }

/* ========== 容器 ========== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}
@media (min-width: 640px) {
  .container { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
  .container { padding-left: 2rem; padding-right: 2rem; }
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.65rem 1.5rem;
  border-radius: 9999px;
  transition: var(--transition);
  border: 1px solid transparent;
  line-height: 1.4;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3); transform: translateY(-1px); }
.btn-primary:active { background: #1B3F9C; transform: translateY(0); box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2); }
.btn-primary:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.35); outline-offset: 2px; }
.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.7); }
.btn-secondary:active { background: rgba(255,255,255,0.35); }
.btn-secondary:focus-visible { outline: 3px solid rgba(255,255,255,0.3); outline-offset: 2px; }
.btn-outline {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--primary-light); border-color: var(--primary); }
.btn-outline:active { background: #DBEAFE; }
.btn-outline:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.25); outline-offset: 2px; }
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.25);
}
.btn-accent:hover { background: #B45309; box-shadow: 0 4px 16px rgba(217, 119, 6, 0.3); transform: translateY(-1px); }
.btn-accent:active { background: #92400E; transform: translateY(0); }
.btn-accent:focus-visible { outline: 3px solid rgba(217, 119, 6, 0.35); outline-offset: 2px; }
.btn-sm { padding: 0.45rem 1.1rem; font-size: 0.875rem; }
.btn-lg { padding: 0.85rem 2.2rem; font-size: 1rem; }

/* ========== 标签 / 徽章 ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.22rem 0.8rem;
  border-radius: 9999px;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(37, 99, 235, 0.12);
  transition: var(--transition);
}
.badge-accent {
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(217, 119, 6, 0.15);
}
.badge-neutral {
  background: #F1F5F9;
  color: var(--secondary);
  border: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  padding: 0.3rem 0.9rem;
  border-radius: 9999px;
  background: #F1F5F9;
  color: var(--secondary);
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: default;
}
.tag:hover { background: var(--primary-light); color: var(--primary); border-color: rgba(37, 99, 235, 0.2); }

/* ========== 导航 Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  border-bottom-color: transparent;
}
.nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}
.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.01em;
}
.logo-text .logo-sub {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 400;
  margin-left: 0.3rem;
}
.nav-top-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: var(--transition);
}
.nav-toggle:hover { background: var(--primary-light); }
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: var(--transition);
}

/* 分段标签导航 */
.nav-chips {
  border-top: 1px solid rgba(226, 232, 240, 0.5);
  padding: 0.55rem 0;
}
.chip-scroll {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 2px;
}
.chip-scroll::-webkit-scrollbar { display: none; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1.2rem;
  border-radius: 9999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--secondary);
  background: #F1F5F9;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.chip:hover { background: var(--primary-light); color: var(--primary); }
.chip.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}
.chip.active:hover { background: var(--primary-dark); }

/* 移动端菜单 */
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 1rem 0;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  color: var(--fg);
  font-weight: 500;
  transition: var(--transition);
}
.mobile-menu a:hover { background: var(--primary-light); color: var(--primary); }

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: calc(100vh - 108px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(30, 58, 138, 0.88) 0%, rgba(37, 99, 235, 0.68) 50%, rgba(30, 58, 138, 0.45) 100%);
  z-index: 1;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.3) 0%, transparent 30%, transparent 70%, rgba(15, 23, 42, 0.4) 100%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 4rem 0 5rem;
  color: #fff;
}
.hero-inner {
  max-width: 750px;
}
.hero h1 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.hero h1 .accent-text {
  color: #FCD34D;
  position: relative;
}
.hero-desc {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 2rem;
  max-width: 620px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.15);
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 3rem;
}

/* Hero指标带 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  padding: 1.75rem 2rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  max-width: 680px;
}
.stat-item {
  text-align: left;
}
.stat-num {
  font-size: 1.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: #fff;
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.stat-num .stat-unit {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
}
.stat-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.15rem;
}

/* ========== 板块通用 ========== */
.section {
  padding: 4rem 0;
}
@media (min-width: 768px) {
  .section { padding: 5rem 0; }
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.12);
  padding: 0.3rem 1rem;
  border-radius: 9999px;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.section-desc {
  font-size: 1rem;
  color: var(--secondary);
  max-width: 560px;
  line-height: 1.7;
}
.section-head {
  margin-bottom: 2.5rem;
}
.section-head.center {
  text-align: center;
}
.section-head.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

/* ========== 资讯列表区 ========== */
.news-section {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 1024px) {
  .news-grid {
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
  }
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 0.5rem;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  border-radius: 8px;
}
.news-item:hover {
  background: var(--primary-light);
  padding-left: 1rem;
  padding-right: 1rem;
  border-color: transparent;
}
.news-item:last-child { border-bottom: none; }
.news-item-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.5;
  transition: var(--transition);
}
.news-item:hover .news-item-title { color: var(--primary); }
.news-item-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.news-item-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }
.news-item-meta .badge { font-size: 0.72rem; padding: 0.1rem 0.6rem; }

/* 推荐栏 */
.news-side {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.side-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: var(--transition);
}
.side-card:hover { box-shadow: var(--shadow-md); }
.side-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg);
}
.side-card-title::before {
  content: '';
  width: 4px;
  height: 16px;
  border-radius: 4px;
  background: var(--primary);
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.recent-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.recent-list li {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--secondary);
  line-height: 1.5;
  transition: var(--transition);
}
.recent-list li:hover { color: var(--primary); }
.recent-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 8px;
}

/* ========== 服务板块 ========== */
.services-section {
  background: var(--bg);
}
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
}
@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #60A5FA);
  opacity: 0;
  transition: var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: rgba(37, 99, 235, 0.2);
}
.service-card:hover::before { opacity: 1; }
@media (min-width: 768px) {
  .service-card.offset { transform: translateY(2rem); }
  .service-card.offset:hover { transform: translateY(calc(2rem - 3px)); }
}
.service-card.wide {
  grid-column: 1 / -1;
}
@media (min-width: 768px) {
  .service-card.wide {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
    align-items: center;
  }
}
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}
.service-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.service-card-desc {
  font-size: 0.92rem;
  color: var(--secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}
.service-link:hover { gap: 0.55rem; color: var(--primary-dark); }
.service-link svg { transition: transform 0.2s ease; }
.service-link:hover svg { transform: translateX(2px); }

/* ========== 优势数据 ========== */
.stats-section {
  position: relative;
  background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 45%, #2563EB 100%);
  padding: 4.5rem 0;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.stats-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.stats-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  text-align: center;
}
@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; }
}
.stats-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 0.5rem;
}
.stats-num {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: #fff;
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 0.3rem;
}
.stats-num .unit {
  font-size: 1.1rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
}
.stats-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.03em;
}
.stats-divider {
  width: 30px;
  height: 2px;
  background: rgba(255,255,255,0.3);
  margin: 0 auto 0.8rem;
  border-radius: 2px;
}

/* ========== 案例展示 ========== */
.showcase-section {
  background: #fff;
}
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
}
@media (min-width: 990px) {
  .showcase-grid {
    grid-template-columns: 1.25fr 1fr;
    gap: 2rem;
    align-items: start;
  }
}
.showcase-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.showcase-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.showcase-thumb {
  position: relative;
  overflow: hidden;
  background: var(--primary-light);
}
.showcase-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.showcase-card:hover .showcase-thumb img { transform: scale(1.05); }
.showcase-large .showcase-thumb { height: 320px; }
.showcase-small .showcase-thumb { height: 160px; }
.showcase-body {
  padding: 1.5rem;
}
.showcase-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.4rem;
  line-height: 1.5;
}
.showcase-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.showcase-stack {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

/* ========== 流程方案 ========== */
.process-section {
  background: var(--bg);
}
.process-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 990px) {
  .process-wrap {
    grid-template-columns: 1.3fr 1fr;
    gap: 3rem;
    align-items: center;
  }
}
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
@media (min-width: 768px) {
  .process-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}
.process-step {
  display: flex;
  gap: 1rem;
  padding: 1rem 0.75rem;
  position: relative;
  transition: var(--transition);
  border-radius: 12px;
}
.process-step:hover { background: #fff; box-shadow: var(--shadow-sm); }
.step-num {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.process-step:hover .step-num {
  background: var(--primary);
  color: #fff;
  transform: scale(1.05);
}
.step-body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.step-body p {
  font-size: 0.88rem;
  color: var(--secondary);
  line-height: 1.6;
}
.process-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 280px;
  background: url('/assets/images/coverpic/cover-4.jpg') center center / cover no-repeat;
  box-shadow: var(--shadow-md);
}
.process-image::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 40%;
  background: linear-gradient(to top, rgba(15,23,42,0.4), transparent);
}
.process-image .img-caption {
  position: absolute;
  bottom: 1.25rem;
  left: 1.5rem;
  color: #fff;
  z-index: 1;
  font-size: 0.95rem;
  font-weight: 500;
  text-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

/* ========== FAQ ========== */
.faq-section {
  background: #fff;
}
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  margin-bottom: 0.9rem;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(37, 99, 235, 0.3); box-shadow: var(--shadow-sm); }
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  transition: var(--transition);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
  font-size: 1rem;
  font-weight: 400;
  transition: var(--transition);
}
.faq-item[open] .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 1.5rem 1.3rem;
  font-size: 0.9rem;
  color: var(--secondary);
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

/* ========== 联系 CTA ========== */
.cta-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--primary-light) 100%);
  border-top: 1px solid var(--border);
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .cta-grid {
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
  }
}
.cta-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.cta-content p {
  color: var(--secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 480px;
}
.cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.contact-card:hover { box-shadow: var(--shadow-lg); }
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}
.contact-item:last-child { border-bottom: none; }
.contact-item .c-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item .c-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 2px;
}
.contact-item .c-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg);
}

/* ========== 页脚 ========== */
.site-footer {
  background: #1E293B;
  color: #CBD5E1;
  padding: 3.5rem 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 3rem;
  }
}
.footer-brand .logo {
  margin-bottom: 1rem;
}
.footer-brand .logo-mark {
  background: rgba(255,255,255,0.15);
  color: #fff;
  box-shadow: none;
}
.footer-brand .logo-text {
  color: #F1F5F9;
}
.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #94A3B8;
  max-width: 320px;
}
.footer-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #F1F5F9;
  margin-bottom: 1.2rem;
  letter-spacing: 0.02em;
}
.footer-links-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.footer-links-col a {
  font-size: 0.88rem;
  color: #94A3B8;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.footer-links-col a:hover { color: #fff; transform: translateX(3px); }
.footer-link-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-contact-info li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: #94A3B8;
  line-height: 1.6;
}
.footer-contact-info li svg {
  flex-shrink: 0;
  margin-top: 2px;
}
.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.82rem;
  color: #64748B;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer-bottom p { margin-bottom: 0.2rem; }
.footer-bottom a { color: #94A3B8; transition: var(--transition); }
.footer-bottom a:hover { color: #fff; }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .nav-top { height: auto; min-height: 60px; padding: 0.5rem 0; }
  .hero { min-height: auto; padding-top: 2rem; padding-bottom: 0; }
  .hero-content { padding: 3rem 0 3.5rem; }
  .hero-stats { grid-template-columns: 1fr 1fr; padding: 1.25rem 1.25rem; }
  .stat-num { font-size: 1.5rem; }
  .section-title { font-size: 1.4rem; }
  .service-card.offset { transform: none; }
  .service-card.offset:hover { transform: translateY(-3px); }
  .showcase-large .showcase-thumb { height: 240px; }
  .process-wrap { gap: 2rem; }
}
@media (max-width: 520px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-desc { font-size: 0.95rem; }
  .btn { padding: 0.55rem 1.1rem; font-size: 0.88rem; }
  .hero-stats { gap: 1rem; padding: 1rem; }
  .stat-num { font-size: 1.3rem; }
  .stat-label { font-size: 0.72rem; }
  .stats-grid { gap: 1.5rem 1rem; }
  .footer-grid { gap: 1.8rem; }
  .cta-btns .btn { width: 100%; }
}

/* ========== 动效 ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content { animation: fadeInUp 0.8s ease both; }
.service-card, .showcase-card, .process-step, .faq-item {
  animation: fadeInUp 0.5s ease both;
}
.service-card:nth-child(2) { animation-delay: 0.1s; }
.service-card:nth-child(3) { animation-delay: 0.2s; }

/* 文本选中 */
::selection {
  background: var(--primary);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

:root {
            --primary: #2563EB;
            --primary-light: #EFF6FF;
            --primary-dark: #1E40AF;
            --accent: #D97706;
            --accent-light: #FEF3C7;
            --bg: #F8FAFC;
            --foreground: #0F172A;
            --text: #334155;
            --text-light: #64748B;
            --text-weak: #94A3B8;
            --border: #E2E8F0;
            --radius: 1rem;
            --radius-lg: 1.5rem;
            --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
            --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
            --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
            --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container-x {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container-x {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container-x {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-padding {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section-padding {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }

        .section-title {
            font-size: 1.875rem;
            font-weight: 700;
            color: var(--foreground);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        .section-desc {
            margin-top: 0.75rem;
            font-size: 1rem;
            color: var(--text-light);
            max-width: 42rem;
            line-height: 1.7;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            background: #172F8A;
            transform: translateY(0);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgb(37 99 235 / 0.15);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            border: 1px solid rgb(37 99 235 / 0.3);
            transition: all 0.2s ease;
        }

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

        .btn-outline:active {
            background: #DBEAFE;
        }

        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .btn-white:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 0.625rem 1.25rem;
            border-radius: 9999px;
            border: 1px solid rgb(255 255 255 / 0.4);
            transition: all 0.2s ease;
        }

        .btn-outline-white:hover {
            background: rgb(255 255 255 / 0.12);
            border-color: #fff;
        }

        /* 导航 chip */
        .chip {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 0.375rem 1rem;
            border-radius: 9999px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--text-light);
            background: #F1F5F9;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }

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

        .chip.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgb(37 99 235 / 0.25);
        }

        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }

        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        /* Header 阴影 */
        .header-wrap {
            box-shadow: 0 1px 0 rgb(226 232 240 / 0.8);
            transition: box-shadow 0.3s ease;
        }

        .header-wrap.scrolled {
            box-shadow: 0 4px 20px rgb(0 0 0 / 0.06);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgb(15 23 42 / 0.72) 0%, rgb(30 64 175 / 0.55) 50%, rgb(37 99 235 / 0.35) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding-top: 6rem;
            padding-bottom: 3rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            background: rgb(255 255 255 / 0.12);
            border: 1px solid rgb(255 255 255 / 0.2);
            color: #E2E8F0;
            font-size: 0.8125rem;
            font-weight: 500;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            backdrop-filter: blur(4px);
        }

        .hero-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.02em;
            max-width: 48rem;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.5rem;
            }
        }

        .hero-subtitle {
            margin-top: 1.25rem;
            font-size: 1.0625rem;
            color: rgb(226 232 240 / 0.9);
            max-width: 36rem;
            line-height: 1.75;
        }

        .hero-metrics {
            position: relative;
            z-index: 2;
            background: rgb(255 255 255 / 0.08);
            border-top: 1px solid rgb(255 255 255 / 0.12);
            backdrop-filter: blur(8px);
            padding: 1.5rem 0;
            margin-top: 3rem;
        }

        .metric-item {
            text-align: center;
            padding: 0.5rem 1rem;
        }

        .metric-number {
            font-size: 1.875rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }

        @media (min-width: 768px) {
            .metric-number {
                font-size: 2.5rem;
            }
        }

        .metric-label {
            margin-top: 0.375rem;
            font-size: 0.8125rem;
            color: rgb(203 213 225 / 0.8);
            font-weight: 400;
        }

        /* 卡片 */
        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 1.75rem;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            gap: 1rem;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-3px);
            border-color: rgb(37 99 235 / 0.15);
        }

        .service-icon {
            width: 3rem;
            height: 3rem;
            border-radius: 0.875rem;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: all 0.25s ease;
        }

        .service-card:hover .service-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 16px rgb(37 99 235 / 0.2);
        }

        .service-card-full {
            background: linear-gradient(135deg, #F8FAFC 0%, var(--primary-light) 100%);
            border: 1px solid rgb(37 99 235 / 0.12);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 2rem;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        @media (min-width: 768px) {
            .service-card-full {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 2rem 2.5rem;
            }
        }

        .service-card-full:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgb(37 99 235 / 0.25);
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            transition: gap 0.2s ease;
            margin-top: auto;
        }

        .service-link:hover {
            gap: 0.625rem;
        }

        /* 数据带 */
        .stats-section {
            background: linear-gradient(145deg, #0F172A 0%, #1E3A5F 50%, #1E40AF 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgb(255 255 255 / 0.04) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }

        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        @media (min-width: 768px) {
            .stats-number {
                font-size: 3.5rem;
            }
        }

        .stats-label {
            font-size: 0.875rem;
            color: rgb(148 163 184 / 0.8);
            margin-top: 0.5rem;
        }

        /* 案例卡片 */
        .case-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
        }

        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .case-card img {
            width: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .case-card:hover img {
            transform: scale(1.03);
        }

        .case-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.1875rem 0.625rem;
            border-radius: 9999px;
            font-size: 0.6875rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .case-meta {
            font-size: 0.8125rem;
            color: var(--text-weak);
        }

        /* 流程 */
        .step-item {
            position: relative;
            padding-left: 2.5rem;
            padding-bottom: 2rem;
        }

        .step-item::before {
            content: '';
            position: absolute;
            left: 0.875rem;
            top: 1rem;
            bottom: 0;
            width: 2px;
            background: rgb(37 99 235 / 0.15);
        }

        .step-item:last-child::before {
            display: none;
        }

        .step-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 1.875rem;
            height: 1.875rem;
            border-radius: 9999px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgb(37 99 235 / 0.25);
            z-index: 1;
        }

        .step-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--foreground);
            margin-bottom: 0.25rem;
        }

        .step-desc {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        @media (min-width: 1024px) {
            .step-item {
                padding-left: 0;
                padding-right: 1.5rem;
                padding-bottom: 0;
            }

            .step-item::before {
                left: 0;
                right: 0;
                top: 0.9375rem;
                width: auto;
                height: 2px;
                bottom: auto;
                background: linear-gradient(90deg, rgb(37 99 235 / 0.15), rgb(37 99 235 / 0.3));
            }

            .step-item:last-child::before {
                display: none;
            }

            .step-item:last-child {
                padding-right: 0;
            }

            .step-number {
                position: relative;
                left: auto;
                top: auto;
                margin-bottom: 1rem;
            }
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            box-shadow: var(--shadow-xs);
            overflow: hidden;
            transition: all 0.2s ease;
            margin-bottom: 0.75rem;
        }

        .faq-item:hover {
            border-color: rgb(37 99 235 / 0.2);
            box-shadow: var(--shadow-sm);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.125rem 1.25rem;
            cursor: pointer;
            list-style: none;
            font-weight: 600;
            font-size: 0.9375rem;
            color: var(--foreground);
            user-select: none;
            transition: color 0.2s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 1.5rem;
            height: 1.5rem;
            border-radius: 9999px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 500;
            transition: transform 0.3s ease, background 0.2s ease, color 0.2s ease;
            line-height: 1;
            padding-bottom: 1px;
        }

        .faq-item details[open] .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.7;
            border-top: 1px solid rgb(241 245 249 / 1);
            margin-top: 0;
            padding-top: 0.875rem;
        }

        /* 关于 */
        .about-panel {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 2rem;
            height: 100%;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 0.875rem;
            padding: 0.875rem 0;
            border-bottom: 1px solid #F1F5F9;
        }

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

        .contact-icon {
            width: 2rem;
            height: 2rem;
            border-radius: 0.625rem;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding-top: 4rem;
            padding-bottom: 2rem;
        }

        .site-footer a {
            transition: color 0.2s ease;
        }

        .site-footer a:hover {
            color: #fff;
        }

        .footer-title {
            color: #E2E8F0;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .footer-bottom {
            border-top: 1px solid rgb(148 163 184 / 0.15);
            margin-top: 3rem;
            padding-top: 1.5rem;
            font-size: 0.8125rem;
            color: #64748B;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.5rem;
        }

        /* 品牌 Logo 标记 */
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.125rem;
            height: 2.125rem;
            border-radius: 0.625rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.125rem;
            box-shadow: 0 4px 12px rgb(37 99 235 / 0.2);
        }

        /* 资讯列表 */
        .news-list-item {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 1rem;
            padding: 0.875rem 0;
            border-bottom: 1px solid #F1F5F9;
            transition: all 0.2s ease;
        }

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

        .news-list-item a {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--foreground);
            line-height: 1.5;
            transition: color 0.15s ease;
        }

        .news-list-item a:hover {
            color: var(--primary);
        }

        .news-time {
            font-size: 0.75rem;
            color: var(--text-weak);
            white-space: nowrap;
            flex-shrink: 0;
            padding-top: 0.25rem;
        }

        .recommend-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 1rem;
            padding: 1.25rem;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-md);
        }

        .recommend-item {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            padding: 0.5rem 0;
            font-size: 0.8125rem;
            color: var(--text);
            transition: color 0.15s ease;
            line-height: 1.4;
        }

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

        .recommend-dot {
            width: 0.375rem;
            height: 0.375rem;
            border-radius: 9999px;
            background: var(--primary);
            flex-shrink: 0;
        }

        /* 图片占位 */
        .img-placeholder {
            background: linear-gradient(135deg, #F1F5F9, #E2E8F0);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            font-size: 0.875rem;
        }

        /* 过渡动画 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeInUp 0.6s ease both;
        }

        .delay-100 {
            animation-delay: 0.1s;
        }

        .delay-200 {
            animation-delay: 0.2s;
        }

        .delay-300 {
            animation-delay: 0.3s;
        }

        /* 移动端适配 */
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.5rem;
            }

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

            .stats-number {
                font-size: 2rem;
            }

            .metric-number {
                font-size: 1.5rem;
            }
        }