/* ========== Hero ========== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  background: linear-gradient(135deg, #0A2540 0%, #0E3A6B 45%, #1A5CFF 100%);
  overflow: hidden; padding: 120px 0 80px;
}
#particles-canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none;
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(120px); pointer-events: none; }
.hero-glow.g1 { width: 500px; height: 500px; background: rgba(0,212,170,0.22); bottom: -150px; right: -100px; }
.hero-glow.g2 { width: 400px; height: 400px; background: rgba(26,92,255,0.35); top: -100px; left: -100px; }
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 60px; align-items: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent); font-size: 14px; font-weight: 500;
  letter-spacing: 3px; margin-bottom: 28px;
}
.hero-tag::before, .hero-tag::after {
  content: ''; width: 32px; height: 1px; background: var(--accent); opacity: 0.6;
}
.hero h1 {
  font-size: 54px; font-weight: 900; color: #fff;
  line-height: 1.25; letter-spacing: -0.5px; margin-bottom: 24px;
}
.hero h1 .grad {
  background: linear-gradient(90deg, #00D4AA, #4D9AFF);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub { font-size: 18px; color: rgba(255,255,255,0.72); line-height: 1.9; margin-bottom: 16px; font-weight: 300; }
.hero-services { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-services span {
  padding: 6px 16px; border-radius: 20px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.85); font-size: 13px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero 右侧品牌环绕 */
.hero-visual { position: relative; height: 460px; display: flex; align-items: center; justify-content: center; }
.brand-orbit { position: relative; width: 340px; height: 340px; }
.orbit-ring {
  position: absolute; inset: 0;
  border: 1px dashed rgba(255,255,255,0.18);
  border-radius: 50%; animation: rotate 30s linear infinite;
}
.orbit-ring.r2 { inset: 50px; border-color: rgba(0,212,170,0.25); animation-duration: 22s; animation-direction: reverse; }
@keyframes rotate { to { transform: rotate(360deg); } }
.orbit-center {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 120px; height: 120px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 900; color: #fff;
  letter-spacing: 2px;
  box-shadow: 0 0 60px rgba(0,212,170,0.5);
}
.orbit-item {
  position: absolute; top: 50%; left: 50%;
  width: 88px; height: 88px; border-radius: 20px;
  background: rgba(255,255,255,0.96);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  box-shadow: 0 8px 28px rgba(0,0,0,0.25);
}
.orbit-item .ico { font-size: 22px; margin-bottom: 2px; }
.orbit-item.i1 { color: var(--brand-bt); }
.orbit-item.i2 { color: var(--brand-sx); }
.orbit-item.i3 { color: var(--brand-wq); }
.orbit-item.i4 { color: var(--brand-qt); }

/* ========== 数据展示条 ========== */
.stats { background: #fff; padding: 56px 0; border-bottom: 1px solid #EEF2F8; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after {
  content: ''; position: absolute; right: 0; top: 20%; bottom: 20%;
  width: 1px; background: #EEF2F8;
}
.stat-num {
  font-family: "Inter", sans-serif;
  font-size: 42px; font-weight: 800; color: var(--primary); line-height: 1.2;
}
.stat-num .unit { font-size: 22px; font-weight: 700; }
.stat-label { font-size: 14px; color: var(--text-sub); margin-top: 6px; letter-spacing: 1px; }

/* ========== 三大核心能力 ========== */
.capabilities { background: var(--bg); }
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cap-card {
  background: var(--card);
  border-radius: var(--radius-card);
  padding: 44px 36px;
  box-shadow: var(--shadow-card);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative; overflow: hidden;
  border: 1px solid #EEF2F8;
}
.cap-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 4px; transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s;
}
.cap-card.c1::before { background: linear-gradient(90deg, var(--primary), #4D9AFF); }
.cap-card.c2::before { background: linear-gradient(90deg, var(--accent), #00B894); }
.cap-card.c3::before { background: linear-gradient(90deg, var(--brand-wq), #FFB800); }
.cap-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.cap-card:hover::before { transform: scaleX(1); }
.cap-icon {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; margin-bottom: 26px;
}
.cap-card.c1 .cap-icon { background: rgba(26,92,255,0.1); }
.cap-card.c2 .cap-icon { background: rgba(0,212,170,0.12); }
.cap-card.c3 .cap-icon { background: rgba(255,107,53,0.1); }
.cap-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 14px; }
.cap-card > p { font-size: 15px; color: var(--text-sub); line-height: 1.8; margin-bottom: 24px; }
.cap-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.cap-tags span {
  font-size: 12px; padding: 4px 12px; border-radius: 6px;
  background: #F2F6FC; color: var(--text-sub);
}
.cap-link {
  font-size: 14px; font-weight: 600; color: var(--primary);
  display: inline-flex; align-items: center; gap: 6px;
  transition: gap 0.25s;
}
.cap-link:hover { gap: 12px; }

/* ========== 品牌矩阵 ========== */
.brand-matrix { background: #fff; }
.brand-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.brand-card {
  border-radius: var(--radius-card);
  padding: 40px 28px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer; position: relative; overflow: hidden;
  border: 1px solid #EEF2F8; background: #fff;
  display: block;
}
.brand-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 0; transition: height 0.35s ease; z-index: 0;
}
.brand-card.b1::after { background: linear-gradient(180deg, transparent, rgba(26,92,255,0.06)); }
.brand-card.b2::after { background: linear-gradient(180deg, transparent, rgba(139,90,43,0.07)); }
.brand-card.b3::after { background: linear-gradient(180deg, transparent, rgba(255,107,53,0.06)); }
.brand-card.b4::after { background: linear-gradient(180deg, transparent, rgba(212,165,116,0.1)); }
.brand-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.brand-card:hover::after { height: 100%; }
.brand-card > * { position: relative; z-index: 1; }
.brand-badge {
  width: 72px; height: 72px; border-radius: 18px;
  margin: 0 auto 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 900; color: #fff;
}
.brand-card.b1 .brand-badge { background: linear-gradient(135deg, #1A5CFF, #4D9AFF); }
.brand-card.b2 .brand-badge { background: linear-gradient(135deg, #8B5A2B, #C9A961); }
.brand-card.b3 .brand-badge { background: linear-gradient(135deg, #FF6B35, #FFB800); }
.brand-card.b4 .brand-badge { background: linear-gradient(135deg, #D4A574, #F5E6D3); color: #8B5A2B; }
.brand-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.brand-desc { font-size: 13px; color: var(--text-sub); line-height: 1.8; margin-bottom: 8px; }
.brand-line { width: 32px; height: 2px; border-radius: 2px; margin: 18px auto; }
.brand-card.b1 .brand-line { background: #1A5CFF; }
.brand-card.b2 .brand-line { background: #C9A961; }
.brand-card.b3 .brand-line { background: #FF6B35; }
.brand-card.b4 .brand-line { background: #D4A574; }
.brand-more {
  font-size: 13px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 4px;
  transition: gap 0.25s;
}
.brand-card.b1 .brand-more { color: #1A5CFF; }
.brand-card.b2 .brand-more { color: #8B5A2B; }
.brand-card.b3 .brand-more { color: #FF6B35; }
.brand-card.b4 .brand-more { color: #B8874A; }
.brand-card:hover .brand-more { gap: 10px; }

/* ========== 大数据能力展示 ========== */
.data-section { background: linear-gradient(135deg, #0A2540, #103A66); color: #fff; }
.data-section .section-head h2 { color: #fff; }
.data-section .section-head p { color: rgba(255,255,255,0.65); }
.data-section .section-head .en { color: var(--accent); }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.data-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  transition: all 0.35s;
}
.data-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(0,212,170,0.4);
  transform: translateY(-6px);
}
.data-card .d-icon { font-size: 28px; margin-bottom: 18px; }
.data-card h4 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.data-card p { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.75; }

/* ========== 新闻动态 ========== */
.news { background: var(--bg); }
.news-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 32px; }
.news-featured {
  background: #fff; border-radius: var(--radius-card);
  overflow: hidden; box-shadow: var(--shadow-card);
  transition: all 0.35s; cursor: pointer;
  display: flex; flex-direction: column;
}
.news-featured:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.news-cover {
  height: 280px;
  background: linear-gradient(135deg, #1A5CFF, #0A2540);
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.news-cover::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(0,212,170,0.35), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(77,154,255,0.4), transparent 45%);
}
.news-cover .cover-emoji { font-size: 64px; position: relative; z-index: 1; }
.news-body { padding: 28px 32px 32px; flex: 1; display: flex; flex-direction: column; }
.news-tag {
  display: inline-block; font-size: 12px; font-weight: 600;
  color: var(--primary); background: rgba(26,92,255,0.08);
  padding: 4px 12px; border-radius: 6px; margin-bottom: 14px;
  width: fit-content;
}
.news-featured h3 { font-size: 21px; font-weight: 700; line-height: 1.5; margin-bottom: 12px; }
.news-featured .news-summary { font-size: 14px; color: var(--text-sub); line-height: 1.8; margin-bottom: 20px; flex: 1; }
.news-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: #9AA7BD;
  padding-top: 18px; border-top: 1px solid #EEF2F8;
}
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  background: #fff; border-radius: 12px;
  padding: 22px 26px;
  box-shadow: 0 2px 12px rgba(26,92,255,0.05);
  transition: all 0.3s; cursor: pointer;
  display: flex; justify-content: space-between; gap: 20px;
  border: 1px solid transparent;
}
.news-item:hover {
  border-color: rgba(26,92,255,0.15);
  transform: translateX(6px);
  box-shadow: 0 6px 20px rgba(26,92,255,0.1);
}
.news-item-main { flex: 1; }
.news-item .cat {
  font-size: 11px; font-weight: 600;
  color: var(--accent); letter-spacing: 1px;
  margin-bottom: 6px; display: block;
}
.news-item h4 { font-size: 15px; font-weight: 600; line-height: 1.6; margin-bottom: 8px; }
.news-item .date { font-size: 12px; color: #9AA7BD; }
.news-more { text-align: center; margin-top: 40px; }
.news-more a {
  font-size: 15px; font-weight: 600; color: var(--primary);
  display: inline-flex; align-items: center; gap: 8px;
  transition: gap 0.25s;
}
.news-more a:hover { gap: 14px; }

/* ========== 工具引流区 ========== */
.tool-cta {
  background: linear-gradient(135deg, #0A2540 0%, #1A5CFF 100%);
  padding: 88px 0;
  position: relative; overflow: hidden;
}
.tool-cta::before {
  content: ''; position: absolute;
  width: 600px; height: 600px; border-radius: 50%;
  background: rgba(0,212,170,0.15); filter: blur(120px);
  top: -200px; right: -150px;
}
.tool-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between;
  gap: 60px; flex-wrap: wrap;
}
.tool-text h3 {
  font-size: 32px; font-weight: 800; color: #fff;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 14px;
}
.tool-text .tool-sub { font-size: 16px; color: rgba(255,255,255,0.72); margin-bottom: 22px; }
.tool-features { display: flex; gap: 24px; flex-wrap: wrap; }
.tool-features span {
  color: rgba(255,255,255,0.85); font-size: 14px;
  display: flex; align-items: center; gap: 8px;
}
.tool-features span::before { content: '✓'; color: var(--accent); font-weight: 700; font-size: 15px; }
.tool-action { text-align: center; }
.tool-domain {
  font-family: "Inter", sans-serif;
  font-size: 14px; color: rgba(255,255,255,0.5);
  margin-top: 14px; letter-spacing: 1px;
}