/* =======================================================
   index.css — 首页独有样式
   依赖：global.css（Design Tokens / 导航 / 页脚 / 通用工具）
   ======================================================= */

/* ===========================
   Hero 区域
   =========================== */
#hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--neutral-900);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 30%, rgba(4,82,151,.55) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(10,158,206,.3) 0%, transparent 60%),
    linear-gradient(135deg, #0d1117 0%, #0a1628 50%, #061a38 100%);
}
/* 网格纹理 */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(4,82,151,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(4,82,151,.08) 1px, transparent 1px);
  background-size: 60px 60px;
}
/* 扫描线动画 */
.hero-scanline {
  position: absolute;
  top: -100%;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(10,158,206,.5), transparent);
  animation: scanline 4s linear infinite;
}
@keyframes scanline {
  0%   { top: -2px; opacity: 0; }
  5%   { opacity: 1; }
  95%  { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
/* 装饰圆环 */
.hero-ring {
  position: absolute;
  right: -8%;
  top: 50%;
  transform: translateY(-50%);
  width: 700px;
  height: 700px;
  border-radius: 50%;
  border: 1px solid rgba(4,82,151,.2);
  pointer-events: none;
}
.hero-ring::before {
  content: '';
  position: absolute;
  inset: 60px;
  border-radius: 50%;
  border: 1px solid rgba(10,158,206,.15);
}
.hero-ring::after {
  content: '';
  position: absolute;
  inset: 140px;
  border-radius: 50%;
  border: 1px solid rgba(4,82,151,.25);
}
/* 浮动粒子 */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: rgba(10,158,206,.6);
  animation: float var(--dur) ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: .4; }
  50% { transform: translateY(-24px) scale(1.4); opacity: .9; }
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--nav-h);
  width: 100%;
}
.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 80px 24px 100px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(10,158,206,.35);
  background: rgba(10,158,206,.1);
  color: #7dd3fc;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  margin-bottom: 24px;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #7dd3fc;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(32px, 2vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: #fff;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.hero-title .highlight, .hero-desc .highlight {
  color: #7dd3fc;
}
.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255,255,255,.65);
  margin-bottom: 40px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.hero-actions .btn {
  white-space: nowrap;
}
.btn-outline {
  border: 1.5px solid rgba(255,255,255,.5);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  
}
.btn-outline svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-outline:hover {
  background: rgba(255,255,255,.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.hero-stats {
  margin-top: 56px;
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat-value {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: #7dd3fc;
  line-height: 1;
}
.hero-stat-label {
  font-size: 12px;
  color: rgba(255,255,255,.5);
  margin-top: 6px;
  letter-spacing: .04em;
}
/* 右侧产品卡片预览 */
.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: hero-float 6s ease-in-out infinite;
}
@keyframes hero-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  backdrop-filter: blur(12px);
  transition: all var(--transition);
}
.hero-card:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(10,158,206,.3);
  transform: translateX(-4px);
}
.hero-card-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 10px;
}
.hero-card-icon svg { width: 20px; height: 20px; color: #7dd3fc; }
.hero-card-title {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  margin-bottom: 4px;
}
.hero-card-desc {
  font-size: 12px;
  color: rgba(255,255,255,.45);
  line-height: 1.6;
}
.hero-card-tag {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  background: rgba(10,158,206,.15);
  color: #7dd3fc;
  border: 1px solid rgba(10,158,206,.25);
}

/* ===========================
   服务能力条带
   =========================== */
#services-strip {
  background: var(--brand-light);
  padding: 20px 0;
  overflow: hidden;
  border-top: 1px solid rgba(4,82,151,.1);
  border-bottom: 1px solid rgba(4,82,151,.1);
}
.strip-track {
  display: flex;
  gap: 0;
  animation: strip-scroll 28s linear infinite;
  white-space: nowrap;
}
.strip-track:hover { animation-play-state: paused; }
@keyframes strip-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.strip-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 28px;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-primary);
  border-right: 1px solid rgba(4,82,151,.15);
}
.strip-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-primary);
  flex-shrink: 0;
}

/* ===========================
   通用 Section 样式
   =========================== */
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand-primary);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--brand-primary);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--neutral-900);
  letter-spacing: -.01em;
}
.section-title span { color: var(--brand-primary); }
.section-desc {
  margin-top: 16px;
  font-size: 16px;
  color: var(--neutral-500);
  max-width: 560px;
  line-height: 1.8;
}
.text-center { text-align: center; }
.text-center .section-desc { margin: 16px auto 0; }

/* ===========================
   产品卡片区
   =========================== */
#products { background: #fff; }
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.product-card {
  position: relative;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-xl);
  padding: 36px;
  overflow: hidden;
  transition: all var(--transition);
  background: #fff;
}
.product-card:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.product-card:hover::before { transform: scaleX(1); }
.product-card-header {
  display: flex;
  align-items:center;
  gap: 16px;
  margin-bottom: 20px;
}
.product-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-lg);
  background: var(--brand-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition);
}
.product-card:hover .product-icon { background: var(--brand-primary); }
.product-icon svg { width: 28px; height: 28px; color: var(--brand-primary); transition: color var(--transition); }
.product-card:hover .product-icon svg { color: #fff; }
.product-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
  background: var(--brand-light);
  color: var(--brand-primary);
  border: 1px solid rgba(4,82,151,.2);
  margin-bottom: 8px;
}
.product-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.3;
}
.product-desc {
  font-size: 14px;
  color: var(--neutral-500);
  line-height: 1.8;
  margin-bottom: 24px;
}
.product-features { display: flex; flex-direction: column; gap: 10px; }
.product-feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--neutral-700);
}
.product-feature-check {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--brand-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.product-feature-check svg { width: 10px; height: 10px; color: var(--brand-primary); }
.product-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--neutral-300);
  font-size: 14px;
  font-weight: 500;
  color: var(--brand-primary);
  transition: gap var(--transition);
}
.product-card:hover .product-cta { gap: 10px; }
.product-cta svg { width: 16px; height: 16px; }
/* 全宽卡片 */
.product-card.full {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

/* ===========================
   安全能力区
   =========================== */
#capabilities { background: var(--neutral-100); }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.cap-card {
  background: #fff;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.cap-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(4,82,151,.25);
  transform: translateY(-3px);
}
.cap-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-lg);
  background: var(--brand-light);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  transition: background var(--transition);
}
.cap-card:hover .cap-icon { background: var(--brand-primary); }
.cap-icon svg { width: 26px; height: 26px; color: var(--brand-primary); transition: color var(--transition); }
.cap-card:hover .cap-icon svg { color: #fff; }
.cap-title { font-size: 15px; font-weight: 500; color: var(--neutral-900); margin-bottom: 8px; }
.cap-desc { font-size: 13px; color: var(--neutral-500); line-height: 1.7; }

/* ===========================
   关于我们区 — V2 大楼实景风格
   =========================== */
#about { background: linear-gradient(180deg, #f8fafc 0%, #fff 100%); }
.about-grid-v2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-top: 56px;
}

/* 左侧文案 */
.about-content-v2 {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.about-title-v2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1.3;
  margin: 0;
}
.about-desc-v2 {
  font-size: 15px;
  color: var(--neutral-600);
  line-height: 1.9;
  margin: 0;
}
.about-btn-v2 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 12px 28px;
  border: 1.5px solid var(--brand-primary);
  border-radius: var(--radius-md);
  color: var(--brand-primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  width: fit-content;
}
.about-btn-v2:hover {
  background: var(--brand-primary);
  color: #fff;
  transform: translateX(4px);
}
.about-btn-v2 svg {
  transition: transform 0.3s ease;
}
.about-btn-v2:hover svg {
  transform: translateX(3px);
}

/* 右侧大楼照片 */
.about-building {
  position: relative;
}
.about-building-img {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.1), 0 8px 24px rgba(0,0,0,0.06);
  position: relative;
}
.about-building-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,158,206,0.05) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}
.about-building-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 4/3;
  transition: transform 0.6s ease;
}
.about-building:hover .about-building-img img {
  transform: scale(1.03);
}

/* 响应式 */
@media (max-width: 1024px) {
  .about-grid-v2 {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about-building-img img {
    aspect-ratio: 16/9;
  }
}
@media (max-width: 768px) {
  .about-grid-v2 {
    gap: 36px;
    margin-top: 40px;
  }
  .about-title-v2 {
    font-size: 24px;
  }
  .about-desc-v2 {
    font-size: 14px;
  }
}

/* ===========================
   数据指标带
   =========================== */
#metrics {
  background: var(--brand-primary);
  padding: 64px 0;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.metric-item {
  text-align: center;
  padding: 16px;
  border-right: 1px solid rgba(255,255,255,.15);
}
.metric-item:last-child { border-right: none; }
.metric-num {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  letter-spacing: -.02em;
}
.metric-num span { font-size: 24px; opacity: .7; }
.metric-label { font-size: 14px; color: rgba(255,255,255,.65); margin-top: 10px; }

/* ===========================
   新闻动态区
   =========================== */
#news { background: var(--neutral-100); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.news-card {
  background: #fff;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(4,82,151,.2);
}
.news-img {
  height: 180px;
  display: flex;
  align-items: flex-start;
  padding: 0px;
  position: relative;
  flex-shrink: 0;
}

.news-img img{ height:100%; width:100%;}

.news-category {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(255,255,255,.9);
  color: var(--brand-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  position:absolute;
  left:10px;
  top:10px;
}
.news-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.news-date {
  font-size: 12px;
  color: var(--neutral-500);
}
.news-tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--brand-light);
  color: var(--brand-primary);
  border-radius: var(--radius-full);
  font-size: 11px;
}
.news-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--neutral-900);
  margin-bottom: 12px;
  line-height: 1.5;
}
.news-desc {
  font-size: 13px;
  color: var(--neutral-600);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}
.news-link {
  font-size: 13px;
  color: var(--brand-primary);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: auto;
}
.news-link:hover { color: var(--brand-dark); }

/* ===========================
   客户案例区
   =========================== */
#cases { background: var(--neutral-100); }
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}
.case-card {
  background: #fff;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}
.case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(4,82,151,.2);
}
.case-quote {
  font-size: 32px;
  color: var(--brand-primary);
  opacity: .3;
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: 12px;
}
.case-text { font-size: 14px; color: var(--neutral-700); line-height: 1.8; margin-bottom: 24px; }
.case-author { display: flex; align-items: center; gap: 12px; }
.case-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  font-weight: 500;
  flex-shrink: 0;
}
.case-author-name { font-size: 14px; font-weight: 500; color: var(--neutral-900); }
.case-author-title { font-size: 12px; color: var(--neutral-500); margin-top: 2px; }
.case-industry {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  background: var(--brand-light);
  color: var(--brand-primary);
  margin-bottom: 12px;
}
/* Logo 墙 */
.clients-title {
  text-align: center;
  font-size: 13px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--neutral-500);
  margin-top: 80px;
  margin-bottom: 32px;
}
.clients-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.client-logo-box {
  padding: 16px 28px;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-md);
  background: #fff;
  font-size: 14px;
  font-weight: 500;
  color: var(--neutral-500);
  transition: all var(--transition);
}
.client-logo-box:hover {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  box-shadow: var(--shadow-sm);
}

/* ===========================
   联系区
   =========================== */
#contact { background: #fff; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.contact-info { padding-top: 8px; }
.contact-info-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--neutral-300);
}
.contact-info-item:last-of-type { border-bottom: none; }
.contact-info-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-icon svg { width: 20px; height: 20px; color: var(--brand-primary); }
.contact-info-label { font-size: 12px; color: var(--neutral-500); margin-bottom: 4px; }
.contact-info-value { font-size: 15px; font-weight: 500; color: var(--neutral-900); }
/* 表单 */
.contact-form {
  background: var(--neutral-100);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-xl);
  padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--neutral-700);
  margin-bottom: 8px;
}
.form-label span { color: #e53e3e; margin-left: 2px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--neutral-900);
  background: #fff;
  transition: all var(--transition);
  outline: none;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--neutral-500); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(4,82,151,.1);
}
.form-textarea { resize: vertical; min-height: 100px; line-height: 1.7; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--brand-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(4,82,151,.3);
}
.form-submit:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(4,82,151,.4);
}
.form-submit svg { width: 18px; height: 18px; }

/* ===========================
   CTA Banner
   =========================== */
#cta-banner {
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-primary) 60%, var(--brand-accent) 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
#cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}
.cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,.7);
  margin-bottom: 36px;
  position: relative;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}
.btn-white {
  background: #fff;
  color: var(--brand-primary);
  padding: 13px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
.btn-white:hover {
  background: var(--brand-light);
  transform: translateY(-2px);
}

/* ===========================
   响应式
   =========================== */
@media (max-width: 1024px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-ring { display: none; }
  .news-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; padding: 56px 24px 72px; }
  .hero-visual { display: none; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .products-grid { grid-template-columns: 1fr; }
  .product-card.full { grid-template-columns: 1fr; gap: 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-float-card { display: none; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.15); }
  .metric-item:nth-child(2n) { border-bottom: none; }
  .cases-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  

}

@media (max-width: 480px) {
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }
}

/* ===========================
   安全评估弹窗
   =========================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(2,45,84,.6);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(10,158,206,.12) 0%, transparent 60%);
  pointer-events: none;
}

.modal-panel {
  position: relative;
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 80px rgba(2,45,84,.25), 0 8px 32px rgba(2,45,84,.15);
  width: 100%;
  max-width: 520px;
  max-height: 92dvh;
  overflow-y: auto;
  padding: 40px;
  transform: translateY(32px) scale(.97);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  scrollbar-width: thin;
  scrollbar-color: var(--brand-light) transparent;
}
.modal-overlay.open .modal-panel {
  transform: translateY(0) scale(1);
}

/* 关闭按钮 */
.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--neutral-100);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-500);
  transition: all var(--transition);
  z-index: 2;
}
.modal-close:hover {
  background: var(--neutral-300);
  color: var(--neutral-900);
}
.modal-close svg { width: 18px; height: 18px; }

/* 弹窗头部 */
.modal-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 32px;
  padding-right: 32px;
}
.modal-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(4,82,151,.3);
}
.modal-icon svg { width: 26px; height: 26px; color: #fff; }
.modal-titles { flex: 1; }
.modal-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 4px;
}
.modal-subtitle {
  font-size: 13px;
  color: var(--neutral-500);
  line-height: 1.6;
}

/* 表单 */
.modal-form { }
.modal-field { margin-bottom: 20px; }
.modal-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--neutral-700);
  margin-bottom: 8px;
}
.required { color: #e53e3e; margin-left: 2px; }
.modal-field input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--neutral-900);
  background: var(--neutral-100);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.modal-field input::placeholder { color: var(--neutral-500); }
.modal-field input:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(4,82,151,.1);
  background: #fff;
}
.modal-field.error input {
  border-color: #e53e3e;
  box-shadow: 0 0 0 3px rgba(229,62,62,.1);
  background: #fff;
}


.modal-field textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--neutral-900);
  background: var(--neutral-100);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.modal-field textarea::placeholder { color: var(--neutral-500); }
.modal-field textarea:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(4,82,151,.1);
  background: #fff;
}
.modal-field.error textarea {
  border-color: #e53e3e;
  box-shadow: 0 0 0 3px rgba(229,62,62,.1);
  background: #fff;
}

.field-error {
  display: block;
  font-size: 12px;
  color: #e53e3e;
  margin-top: 6px;
  min-height: 16px;
}

/* 提交区 */
.modal-submit-row { margin-top: 28px; }
.modal-submit-btn {
  width: 100%;
  padding: 15px;
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(4,82,151,.3);
  transition: all var(--transition);
}
.modal-submit-btn:hover:not(:disabled) {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(4,82,151,.4);
}
.modal-submit-btn:disabled {
  opacity: .7;
  cursor: not-allowed;
  transform: none;
}
@keyframes spin { to { transform: rotate(360deg); } }
.modal-submit-btn .spin { animation: spin .8s linear infinite; }

.modal-privacy {
  font-size: 11px;
  color: var(--neutral-500);
  text-align: center;
  margin-top: 12px;
  line-height: 1.6;
}

/* 成功状态 */
.modal-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 16px 0 8px;
  gap: 16px;
}
.modal-success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #ecfdf5;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-success-icon svg { width: 40px; height: 40px; color: #10b981; }
.modal-success h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--brand-dark);
}
.modal-success p {
  font-size: 14px;
  color: var(--neutral-600);
  line-height: 1.8;
  max-width: 360px;
}
.modal-success strong { color: var(--brand-primary); }
.modal-success-close {
  padding: 12px 32px;
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}
.modal-success-close:hover { background: var(--brand-dark); }

/* 响应式 */
@media (max-width: 480px) {
  .modal-panel { padding: 28px 24px; }
  .modal-title { font-size: 20px; }
}