/* ===== 全局重置与变量 ===== */
:root {
  --gold: #c9a96e;
  --gold-light: #d4b87a;
  --gold-dark: #b8942e;
  --dark: #0a0e14;
  --navy: #111827;
  --navy-light: #1a2235;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --radius: 12px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* ===== 通用组件 ===== */
.dh-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 60px;
}
.dh-section { padding: 100px 0; }
.dh-section-dark { background: var(--dark); color: var(--white); }
.dh-section-gray { background: var(--gray-50); }

.dh-section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.dh-section-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
  line-height: 1.2;
}
.dh-section-dark .dh-section-title { color: var(--white); }
.dh-section-subtitle {
  font-size: 14px;
  color: var(--gray-400);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 50px;
}

.dh-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  transition: all var(--transition);
  cursor: pointer;
  letter-spacing: 0.02em;
  border: none;
}
.dh-btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #0a0e14;
  box-shadow: 0 4px 20px rgba(201,169,110,0.3);
}
.dh-btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201,169,110,0.4);
}
.dh-btn-outline {
  border: 1px solid rgba(201,169,110,0.4);
  color: var(--gold);
  background: transparent;
}
.dh-btn-outline:hover {
  background: rgba(201,169,110,0.08);
  border-color: var(--gold);
}

/* ===== Hero 全屏轮播 ===== */
.dh-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 700px;
  overflow: hidden;
  background: var(--dark);
}
.dh-hero .swiper-container {
  width: 100%;
  height: 100%;
}
.dh-hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.dh-hero-slide.active { opacity: 1; }
.dh-hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,14,20,0.85) 0%, rgba(10,14,20,0.3) 50%, rgba(10,14,20,0.7) 100%);
}
.dh-hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 60px;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.dh-hero-content .dh-hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid rgba(201,169,110,0.4);
  border-radius: 50px;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  background: rgba(201,169,110,0.08);
}
.dh-hero-content h1 {
  font-size: 56px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 700px;
  letter-spacing: 0.03em;
}
.dh-hero-content h1 span { color: var(--gold); }
.dh-hero-content p {
  font-size: 18px;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.dh-hero-content .dh-hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.dh-hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 10px;
}
.dh-hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.dh-hero-dot.active { background: var(--gold); width: 28px; border-radius: 20px; }
.dh-hero-scroll {
  position: absolute;
  bottom: 40px;
  right: 60px;
  z-index: 3;
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  letter-spacing: 0.1em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.dh-hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== 快讯 ===== */
.dh-news-bar {
  background: linear-gradient(180deg, #0a0e14 0%, #0d1117 100%);
  padding: 12px 40px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid rgba(201,169,110,0.12);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  position: relative;
  z-index: 5;
}
.dh-news-bar::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.4) 20%, rgba(201,169,110,0.4) 80%, transparent);
}
.dh-news-bar-label {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #c9a96e, #b8942e);
  color: #0a0e14;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(201,169,110,0.3);
  position: relative;
}
.dh-news-bar-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #ef4444;
  border-radius: 50%;
  animation: newsDotPulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 8px #ef4444;
}
@keyframes newsDotPulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}
.dh-news-bar-list {
  flex: 1;
  overflow: hidden;
  height: 24px;
  position: relative;
  mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 40px, #000 calc(100% - 40px), transparent 100%);
}
.dh-news-bar-list ul {
  display: flex;
  align-items: center;
  animation: tickerScrollH 60s linear infinite;
  width: max-content;
}
.dh-news-bar-list:hover ul { animation-play-state: paused; }
.dh-news-bar-list li {
  height: 24px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-right: 60px;
  flex-shrink: 0;
}
.dh-news-bar-list li::after {
  content: '|';
  color: rgba(201,169,110,0.25);
  margin-left: 30px;
  font-weight: 300;
}
.dh-news-bar-list li:last-child::after { display: none; }
.dh-news-bar-list li a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  transition: color 0.3s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.dh-news-bar-list li a::before {
  content: '';
  width: 4px;
  height: 4px;
  background: #c9a96e;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.6;
}
.dh-news-bar-list li a:hover { color: #c9a96e; }
.dh-news-bar-list .time {
  color: rgba(201,169,110,0.5);
  font-size: 12px;
  flex-shrink: 0;
  font-weight: 600;
}
.dh-news-bar-list .new-tag {
  display: inline-block;
  background: #ef4444;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 8px;
  letter-spacing: 0.05em;
  margin-right: 6px;
  box-shadow: 0 2px 6px rgba(239,68,68,0.4);
}
.dh-news-bar-more {
  flex-shrink: 0;
  color: #c9a96e;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: 20px;
  transition: all 0.3s;
  white-space: nowrap;
}
.dh-news-bar-more:hover {
  background: #c9a96e;
  color: #0a0e14;
  border-color: #c9a96e;
  transform: translateX(3px);
}
@keyframes tickerScrollH {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== 关于我们 ===== */
.dh-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.dh-about-text h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
  line-height: 1.3;
}
.dh-about-text .dh-section-subtitle { margin-bottom: 24px; }
.dh-about-text p {
  color: var(--gray-600);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 16px;
}
.dh-about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.dh-stat {
  text-align: center;
  padding: 28px 16px;
  background: linear-gradient(135deg, rgba(201,169,110,0.08), rgba(201,169,110,0.02));
  border-radius: var(--radius);
  border: 1px solid rgba(201,169,110,0.15);
  transition: all 0.35s cubic-bezier(.4,0,.2,1);
}
.dh-stat:hover {
  transform: translateY(-4px);
  border-color: rgba(201,169,110,0.4);
  box-shadow: 0 10px 30px rgba(201,169,110,0.12);
}
.dh-stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
  text-shadow: 0 2px 10px rgba(201,169,110,0.15);
}
.dh-stat-label {
  font-size: 13px;
  color: var(--gray-500);
  letter-spacing: 0.05em;
}
.dh-about-video {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0,0,0,0.15);
}
.dh-about-video video {
  width: 100%;
  display: block;
  border-radius: var(--radius);
}
.dh-about-video::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(201,169,110,0.2);
  border-radius: var(--radius);
  pointer-events: none;
  z-index: 2;
}

/* ===== 律师团队 ===== */
.dh-team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.dh-team-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
  cursor: pointer;
}
.dh-team-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.12);
  border-color: var(--gold);
}
.dh-team-card .dh-team-img {
  height: 280px;
  overflow: hidden;
  position: relative;
}
.dh-team-card .dh-team-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.dh-team-card:hover .dh-team-img img { transform: scale(1.05); }
.dh-team-card .dh-team-img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
}
.dh-team-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(201,169,110,0.3);
}
.dh-team-grid .dh-team-card:first-child::before {
  content: '首席律师';
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(201,169,110,0.3);
}
.dh-team-brief {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  line-height: 1.6;
  opacity: 0;
  transform: translateY(100%);
  transition: all 0.4s cubic-bezier(.4,0,.2,1);
  z-index: 3;
}
.dh-team-card:hover .dh-team-brief {
  opacity: 1;
  transform: translateY(0);
}
.dh-team-info {
  padding: 20px;
  text-align: center;
}
.dh-team-info .dh-team-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 4px;
}
.dh-team-info .dh-team-role {
  font-size: 13px;
  color: var(--gold);
  font-weight: 500;
}
.dh-team-more-wrap { text-align: center; margin-top: 40px; }
.dh-research-more-wrap { text-align: center; margin-top: 30px; }
.dh-btn-more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  border: 1.5px solid rgba(201,169,110,0.35);
  border-radius: 8px;
  transition: all var(--transition);
  text-decoration: none;
  letter-spacing: 0.02em;
  background: transparent;
}
.dh-btn-more:hover {
  background: var(--gold);
  color: #0a0e14;
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(201,169,110,0.25);
}
.dh-btn-more i { font-size: 12px; transition: transform 0.3s; }
.dh-btn-more:hover i { transform: translateX(4px); }

/* ===== 专业领域 Tabs ===== */
.dh-focus-area {
  padding: 0;
}
.dh-focus-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 0;
}
.dh-focus-tab {
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-500);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  letter-spacing: 0.03em;
}
.dh-focus-tab:hover { color: var(--gray-800); }
.dh-focus-tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.dh-focus-tab.active i { color: var(--gold); }
.dh-focus-panels { position: relative; min-height: 420px; }
.dh-focus-panel {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  padding: 50px 0;
}
.dh-focus-panel.active { opacity: 1; visibility: visible; position: relative; }
.dh-focus-panel .dh-focus-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}
.dh-focus-panel .dh-focus-img img { width: 100%; }
.dh-focus-info h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 16px;
}
.dh-focus-info p {
  color: var(--gray-600);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 24px;
}

/* ===== 经典案例 ===== */
.dh-case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.dh-case-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: all var(--transition);
}
.dh-case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}
.dh-case-card .dh-case-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.dh-case-card .dh-case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.dh-case-card:hover .dh-case-img img { transform: scale(1.06); }
.dh-case-card .dh-case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 14px;
  background: rgba(10,14,20,0.8);
  color: var(--gold);
  font-size: 11px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.dh-case-body {
  padding: 20px;
}
.dh-case-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-800);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dh-case-body .dh-case-more {
  display: inline-block;
  margin-top: 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}
.dh-case-body .dh-case-more:hover { padding-left: 4px; }
.dh-case-special {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--navy), var(--dark));
  border-radius: var(--radius);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(201,169,110,0.2);
}
.dh-case-special-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(201,169,110,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.dh-case-special-text { flex: 1; margin: 0 24px; }
.dh-case-special-text p {
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.dh-case-special-text h4 {
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
}

/* ===== 专业研究 ===== */
.dh-research-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 40px;
}
.dh-research-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.dh-research-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--gold);
  transition: height var(--transition);
}
.dh-research-card:hover::before { height: 100%; }
.dh-research-card:hover {
  border-color: var(--gold);
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}
.dh-research-card .dh-research-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(201,169,110,0.08);
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.dh-research-card h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--gray-800);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dh-research-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dh-research-card .dh-research-date {
  font-size: 12px;
  color: var(--gray-400);
}

/* ===== 五步流程 ===== */
.dh-steps-section {
  background: linear-gradient(180deg, var(--navy) 0%, var(--dark) 100%);
  position: relative;
  overflow: hidden;
}
.dh-steps-section .dh-section-title { color: #fff; }
.dh-steps-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, rgba(201,169,110,0.15), transparent);
}
.dh-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 50px;
}
.dh-step {
  text-align: center;
  position: relative;
  flex: 1;
}
.dh-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 40px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(201,169,110,0.3) 0, rgba(201,169,110,0.3) 8px, transparent 8px, transparent 16px);
  z-index: 1;
}
.dh-step:not(:last-child)::before {
  content: '\f105';
  font-family: 'FontAwesome';
  position: absolute;
  top: 32px;
  right: -10px;
  width: 18px;
  height: 18px;
  background: var(--navy);
  border: 1.5px solid rgba(201,169,110,0.3);
  border-radius: 50%;
  color: var(--gold);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.dh-step-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(201,169,110,0.08);
  border: 2px solid rgba(201,169,110,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: all var(--transition);
  position: relative;
  z-index: 2;
}
.dh-step:hover .dh-step-icon {
  background: var(--gold);
  border-color: var(--gold);
  transform: scale(1.1);
  box-shadow: 0 0 40px rgba(201,169,110,0.3);
}
.dh-step-icon img {
  width: 40px;
  height: 40px;
}
.dh-step-num {
  font-size: 14px;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}
.dh-step-title {
  font-size: 16px;
  color: var(--white);
  font-weight: 600;
}

/* ===== 团队资讯 ===== */
.dh-news-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  align-items: start;
}
.dh-news-gallery {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 12px;
  border-radius: var(--radius);
  overflow: hidden;
}
.dh-news-gallery .dh-news-gallery-main {
  grid-row: span 2;
  height: 420px;
}
.dh-news-gallery .dh-news-gallery-sub {
  height: 204px;
}
.dh-news-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s;
}
.dh-news-gallery a {
  display: block;
  overflow: hidden;
  border-radius: 8px;
}
.dh-news-gallery a:hover img { transform: scale(1.05); }
.dh-news-list-item {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--gray-200);
  transition: all var(--transition);
}
.dh-news-list-item:hover {
  border-bottom-color: var(--gold);
  padding-left: 8px;
}
.dh-news-date {
  flex-shrink: 0;
  width: 56px;
  text-align: center;
}
.dh-news-date .day {
  font-size: 28px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}
.dh-news-date .month {
  font-size: 12px;
  color: var(--gray-400);
  margin-top: 4px;
}
.dh-news-text h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-800);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== CTA 区域 ===== */
.dh-cta {
  background: linear-gradient(135deg, var(--navy) 0%, #0f1923 50%, var(--dark) 100%);
  position: relative;
  overflow: hidden;
}
.dh-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  border: 1px solid rgba(201,169,110,0.08);
  pointer-events: none;
}
.dh-cta::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 1px solid rgba(201,169,110,0.06);
  pointer-events: none;
}
.dh-cta-inner {
  text-align: center;
  position: relative;
  z-index: 2;
}
.dh-cta-inner h2 {
  font-size: 38px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}
.dh-cta-inner p {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 36px;
}
.dh-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .dh-container { padding: 0 30px; }
  .dh-section { padding: 60px 0; }
  .dh-section-title { font-size: 30px; }
  .dh-about-grid { grid-template-columns: 1fr; gap: 40px; }
  .dh-team-grid { grid-template-columns: repeat(2, 1fr); }
  .dh-focus-panel { grid-template-columns: 1fr; gap: 24px; }
  .dh-focus-panel .dh-focus-img { max-height: 300px; }
  .dh-case-grid { grid-template-columns: repeat(2, 1fr); }
  .dh-research-grid { grid-template-columns: 1fr; }
  .dh-steps { flex-wrap: wrap; gap: 30px; }
  .dh-step { flex: 0 0 calc(33.33% - 20px); }
  .dh-step:not(:last-child)::after, .dh-step:not(:last-child)::before { display: none; }
  .dh-news-grid { grid-template-columns: 1fr; }
  .dh-hero-content h1 { font-size: 36px; }
}
@media (max-width: 640px) {
  .dh-container { padding: 0 16px; }
  .dh-section-title { font-size: 24px; }
  .dh-team-grid { grid-template-columns: 1fr; }
  .dh-case-grid { grid-template-columns: 1fr; }
  .dh-step { flex: 0 0 calc(50% - 16px); }
  .dh-hero-content { padding: 0 20px; }
  .dh-hero-content h1 { font-size: 28px; }
  .dh-hero-scroll { display: none; }
  .dh-news-bar { padding: 10px 16px; gap: 12px; }
  .dh-news-bar-label { font-size: 11px; padding: 4px 10px; }
  .dh-news-bar-list li a { font-size: 13px; }
  .dh-header { padding: 0 16px !important; }
  .dh-header .dh-logo img { height: 36px !important; max-width: 160px !important; }
}

/* ===== 粒子背景 ===== */
#dh-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}

/* ===== GSAP 入场动画初始状态 ===== */
.dh-reveal { opacity: 0; transform: translateY(40px); }

/* ===== 右侧浮动工具栏 ===== */
.dh-sidebar{position:fixed;right:20px;bottom:220px;z-index:997;display:flex;flex-direction:column;gap:12px;align-items:center}
.dh-sidebar-item{width:50px;height:50px;border-radius:50%;background:rgba(10,14,20,.85);backdrop-filter:blur(10px);border:1px solid rgba(201,169,110,.35);color:#c9a96e;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;box-shadow:0 4px 20px rgba(0,0,0,.3);transition:all .35s cubic-bezier(.4,0,.2,1);position:relative;text-decoration:none}
.dh-sidebar-item:hover{background:linear-gradient(135deg,#c9a96e,#b8942e);color:#0a0e14;border-color:transparent;transform:translateY(-4px) scale(1.08);box-shadow:0 8px 28px rgba(201,169,110,.4)}
.dh-sidebar-qr{position:absolute;right:64px;top:50%;transform:translateY(-50%) scale(.85);width:170px;padding:14px;background:#fff;border-radius:14px;box-shadow:0 14px 50px rgba(0,0,0,.2);opacity:0;visibility:hidden;transition:all .4s cubic-bezier(.4,0,.2,1);pointer-events:none;transform-origin:right center}
.dh-sidebar-item:hover .dh-sidebar-qr{opacity:1;visibility:visible;transform:translateY(-50%) scale(1)}
.dh-sidebar-qr::after{content:'';position:absolute;right:-6px;top:50%;transform:translateY(-50%);width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:6px solid #fff}
.dh-sidebar-qr img{width:100%;border-radius:8px;display:block}
.dh-sidebar-qr p{font-size:12px;color:#374151;text-align:center;margin-top:10px;font-weight:600;letter-spacing:.02em}
.dh-sidebar-backtop{transition:all .4s cubic-bezier(.4,0,.2,1)}
.dh-sidebar-label{position:absolute;right:60px;top:50%;transform:translateY(-50%) scale(.9);background:rgba(10,14,20,.9);color:#c9a96e;font-size:12px;padding:6px 12px;border-radius:6px;white-space:nowrap;opacity:0;visibility:hidden;transition:all .3s;pointer-events:none;border:1px solid rgba(201,169,110,.2)}
.dh-sidebar-item:hover .dh-sidebar-label{opacity:1;visibility:visible;transform:translateY(-50%) scale(1)}
.dh-sidebar-label::after{content:'';position:absolute;right:-5px;top:50%;transform:translateY(-50%);width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:5px solid rgba(10,14,20,.9)}
@media(max-width:768px){.dh-sidebar{right:12px;bottom:200px;gap:10px}.dh-sidebar-item{width:44px;height:44px;font-size:16px}.dh-sidebar-qr{width:140px;padding:10px;right:56px}.dh-sidebar-qr p{font-size:11px}}