/* ============================================
   东升国际 - 主样式表 dt-style.css
   CSS前缀: dt-
   设计风格: 东方商务精英风 (Oriental Business Elite)
   ============================================ */

/* --- CSS Variables --- */
:root {
  --dt-gold: #A88B5A;
  --dt-black: #1A1A1A;
  --dt-red: #C00000;
  --dt-gray-blue: #4A5C6B;
  --dt-bg: #F5F5F5;
  --dt-text: #1A1A1A;
  --dt-text-secondary: #666666;
  --dt-white: #FFFFFF;
  --dt-shadow: 0 10px 30px rgba(0,0,0,0.08);
  --dt-radius: 4px;
  --dt-font-title: 'Noto Serif SC', serif;
  --dt-font-body: 'Noto Sans SC', sans-serif;
  --dt-transition: all 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--dt-font-body);
  color: var(--dt-text);
  background-color: var(--dt-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--dt-gold);
  text-decoration: none;
  transition: var(--dt-transition);
}

a:hover {
  color: var(--dt-red);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--dt-font-title);
  font-weight: 700;
  line-height: 1.3;
  color: var(--dt-text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--dt-text-secondary);
}

/* --- Layout --- */
.dt-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.dt-section {
  padding: 80px 0;
}

.dt-section-title {
  text-align: center;
  margin-bottom: 16px;
  color: var(--dt-text);
}

.dt-section-subtitle {
  text-align: center;
  color: var(--dt-text-secondary);
  max-width: 640px;
  margin: 0 auto 48px;
  font-size: 1rem;
}

.dt-gold-line {
  width: 60px;
  height: 3px;
  background: var(--dt-gold);
  margin: 16px auto 24px;
}

/* --- Grid System --- */
.dt-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.dt-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

/* --- Navigation --- */
.dt-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--dt-black);
  border-bottom: 2px solid var(--dt-gold);
  height: 72px;
}

.dt-nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.dt-nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.dt-nav-logo-stamp {
  width: 48px;
  height: 48px;
  border: 2px solid var(--dt-gold);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--dt-font-title);
  font-size: 1.25rem;
  color: var(--dt-gold);
  font-weight: 700;
  transform: rotate(-3deg);
  position: relative;
}

.dt-nav-logo-stamp::after {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid var(--dt-gold);
  border-radius: 2px;
  opacity: 0.5;
}

.dt-nav-logo-text {
  font-family: var(--dt-font-title);
  font-size: 1.1rem;
  color: var(--dt-gold);
  font-weight: 700;
}

.dt-nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.dt-nav-menu li a {
  display: block;
  padding: 8px 16px;
  color: #999;
  font-size: 0.9rem;
  text-decoration: none;
  position: relative;
  transition: var(--dt-transition);
}

.dt-nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--dt-gold);
  transition: var(--dt-transition);
}

.dt-nav-menu li a:hover,
.dt-nav-menu li a.dt-active {
  color: var(--dt-gold);
}

.dt-nav-menu li a:hover::after,
.dt-nav-menu li a.dt-active::after {
  width: 80%;
}

.dt-nav-cta {
  display: inline-block;
  padding: 8px 20px;
  background: var(--dt-gold);
  color: var(--dt-black) !important;
  border-radius: var(--dt-radius);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--dt-transition);
}

.dt-nav-cta:hover {
  transform: scale(1.05);
  color: var(--dt-black) !important;
  background: #c4a46e;
}

.dt-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.dt-hamburger span {
  width: 24px;
  height: 2px;
  background: var(--dt-gold);
  transition: var(--dt-transition);
}

/* --- Hero Banner --- */
.dt-hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dt-black);
}

.dt-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
}

.dt-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0.7) 0%, rgba(26,26,26,0.85) 100%);
}

.dt-hero-ink {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 600'%3E%3Cpath d='M200,300 Q350,100 500,300 T800,300' fill='none' stroke='%23A88B5A' stroke-width='2' opacity='0.3'/%3E%3Ccircle cx='400' cy='200' r='100' fill='none' stroke='%23A88B5A' stroke-width='1' opacity='0.2'/%3E%3C/svg%3E") center/cover no-repeat;
}

.dt-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.dt-hero-badge {
  display: inline-block;
  padding: 6px 20px;
  background: rgba(168,139,90,0.15);
  border: 1px solid var(--dt-gold);
  border-radius: 50px;
  color: var(--dt-gold);
  font-size: 0.8rem;
  margin-bottom: 32px;
  letter-spacing: 1px;
}

.dt-hero h1 {
  font-size: 3.5rem;
  color: var(--dt-white);
  margin-bottom: 24px;
  line-height: 1.2;
}

.dt-hero h1 .dt-text-gold {
  color: var(--dt-gold);
}

.dt-hero-desc {
  color: #aaa;
  font-size: 1.05rem;
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.dt-hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.dt-btn-primary {
  display: inline-block;
  padding: 14px 36px;
  background: var(--dt-gold);
  color: var(--dt-black);
  border-radius: var(--dt-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--dt-transition);
  border: 2px solid var(--dt-gold);
}

.dt-btn-primary:hover {
  background: #c4a46e;
  color: var(--dt-black);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(168,139,90,0.3);
}

.dt-btn-outline {
  display: inline-block;
  padding: 14px 36px;
  background: transparent;
  color: var(--dt-gold);
  border: 2px solid var(--dt-gold);
  border-radius: var(--dt-radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--dt-transition);
}

.dt-btn-outline:hover {
  background: rgba(168,139,90,0.1);
  color: var(--dt-gold);
  transform: translateY(-2px);
}

.dt-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid rgba(168,139,90,0.2);
}

.dt-hero-stat-num {
  font-family: var(--dt-font-title);
  font-size: 2.5rem;
  color: var(--dt-gold);
  font-weight: 700;
}

.dt-hero-stat-label {
  color: #888;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* --- Cards --- */
.dt-news-card {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 28px;
  box-shadow: var(--dt-shadow);
  transition: var(--dt-transition);
  border: 1px solid #eee;
}

.dt-news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.dt-news-card-source {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--dt-text-secondary);
}

.dt-news-card-source-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--dt-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dt-white);
  font-size: 0.7rem;
  font-weight: 700;
}

.dt-news-card h4 {
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.dt-news-card-data {
  font-family: var(--dt-font-title);
  font-size: 1.5rem;
  color: var(--dt-gold);
  font-weight: 700;
  margin-bottom: 12px;
}

.dt-impact-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.dt-impact-high {
  background: rgba(192,0,0,0.1);
  color: var(--dt-red);
}

.dt-impact-medium {
  background: rgba(74,92,107,0.1);
  color: var(--dt-gray-blue);
}

.dt-impact-low {
  background: rgba(102,102,102,0.1);
  color: var(--dt-text-secondary);
}

.dt-news-card-time {
  font-size: 0.8rem;
  color: #999;
  margin-top: 12px;
}

/* --- Video Cards --- */
.dt-video-section {
  background: #eee;
}

.dt-video-card {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  overflow: hidden;
  box-shadow: var(--dt-shadow);
  transition: var(--dt-transition);
}

.dt-video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.dt-video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--dt-black);
}

.dt-video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dt-video-duration {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.7);
  color: var(--dt-white);
  padding: 2px 8px;
  border-radius: var(--dt-radius);
  font-size: 0.75rem;
  z-index: 2;
}

.dt-video-info {
  padding: 20px;
}

.dt-video-info h4 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.dt-video-info p {
  font-size: 0.85rem;
  color: var(--dt-text-secondary);
  margin: 0;
}

/* --- Trade Data Map --- */
.dt-data-wall-preview {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: center;
}

.dt-data-wall-text h2 {
  text-align: left;
}

.dt-data-wall-text p {
  margin-bottom: 24px;
}

.dt-map-container {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 24px;
  box-shadow: var(--dt-shadow);
  min-height: 400px;
  position: relative;
}

.dt-map-controls {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.dt-map-btn {
  padding: 6px 16px;
  border: 1px solid var(--dt-gold);
  background: transparent;
  color: var(--dt-gold);
  border-radius: var(--dt-radius);
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--dt-transition);
  font-family: var(--dt-font-body);
}

.dt-map-btn.dt-active,
.dt-map-btn:hover {
  background: var(--dt-gold);
  color: var(--dt-white);
}

/* --- Report Cards --- */
.dt-report-card {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  overflow: hidden;
  box-shadow: var(--dt-shadow);
  transition: var(--dt-transition);
}

.dt-report-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.dt-report-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.dt-report-card-body {
  padding: 24px;
}

.dt-report-card-tag {
  display: inline-block;
  padding: 3px 12px;
  background: rgba(168,139,90,0.1);
  color: var(--dt-gold);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.dt-report-card-body h4 {
  margin-bottom: 8px;
  line-height: 1.5;
}

.dt-report-card-body p {
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dt-report-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-top: 1px solid #eee;
  font-size: 0.8rem;
  color: #999;
}

.dt-report-card-link {
  color: var(--dt-gold);
  font-weight: 600;
  font-size: 0.85rem;
}

/* --- Scrolling Marquee --- */
.dt-marquee-section {
  background: var(--dt-black);
  padding: 16px 0;
  overflow: hidden;
}

.dt-marquee-track {
  display: flex;
  animation: dt-scroll-marquee 40s linear infinite;
  white-space: nowrap;
}

.dt-marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 40px;
  color: #ccc;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.dt-marquee-tag {
  color: var(--dt-gold);
  font-weight: 700;
}

.dt-marquee-amount {
  color: var(--dt-red);
  font-family: var(--dt-font-title);
  font-weight: 700;
}

@keyframes dt-scroll-marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Policy Section --- */
.dt-policy-section {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.dt-policy-img {
  width: 100%;
  border-radius: var(--dt-radius);
  box-shadow: var(--dt-shadow);
}

.dt-policy-list {
  list-style: none;
}

.dt-policy-item {
  padding: 20px 0;
  border-bottom: 1px solid #eee;
}

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

.dt-policy-item h4 {
  margin-bottom: 4px;
}

.dt-policy-item-region {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(168,139,90,0.1);
  color: var(--dt-gold);
  border-radius: 50px;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.dt-policy-item p {
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

/* --- Author Cards --- */
.dt-author-card {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 32px;
  box-shadow: var(--dt-shadow);
  text-align: center;
  transition: var(--dt-transition);
}

.dt-author-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.dt-author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--dt-gold);
}

.dt-author-card h4 {
  margin-bottom: 4px;
}

.dt-author-card .dt-author-title {
  font-size: 0.8rem;
  color: var(--dt-text-secondary);
  margin-bottom: 16px;
}

.dt-author-card h5 {
  font-family: var(--dt-font-title);
  margin-bottom: 8px;
  text-align: left;
}

.dt-author-card .dt-author-excerpt {
  font-size: 0.9rem;
  text-align: left;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Community Section --- */
.dt-community {
  background: linear-gradient(135deg, var(--dt-black) 0%, #2a2a2a 100%);
  color: var(--dt-white);
}

.dt-community-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.dt-community h2 {
  color: var(--dt-white);
  text-align: left;
}

.dt-community p {
  color: #aaa;
}

.dt-benefit-list {
  list-style: none;
  margin-top: 24px;
}

.dt-benefit-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ccc;
  font-size: 0.95rem;
}

.dt-benefit-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(168,139,90,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dt-gold);
  font-size: 1rem;
  flex-shrink: 0;
}

.dt-community-form {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(168,139,90,0.2);
  border-radius: var(--dt-radius);
  padding: 40px;
}

.dt-community-form h3 {
  color: var(--dt-gold);
  margin-bottom: 24px;
}

.dt-form-group {
  margin-bottom: 16px;
}

.dt-form-input,
.dt-form-select,
.dt-form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(168,139,90,0.3);
  border-radius: var(--dt-radius);
  color: var(--dt-white);
  font-family: var(--dt-font-body);
  font-size: 0.9rem;
  transition: var(--dt-transition);
}

.dt-form-input::placeholder {
  color: #777;
}

.dt-form-input:focus,
.dt-form-select:focus,
.dt-form-textarea:focus {
  outline: none;
  border-color: var(--dt-gold);
  box-shadow: 0 0 0 3px rgba(168,139,90,0.1);
}

.dt-form-submit {
  width: 100%;
  padding: 14px;
  background: var(--dt-gold);
  color: var(--dt-black);
  border: none;
  border-radius: var(--dt-radius);
  font-family: var(--dt-font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--dt-transition);
  margin-top: 8px;
}

.dt-form-submit:hover {
  background: #c4a46e;
  transform: translateY(-2px);
}

/* --- Partners Section --- */
.dt-partners {
  text-align: center;
}

.dt-partner-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.dt-partner-logo {
  width: 120px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: grayscale(100%);
  opacity: 0.5;
  transition: var(--dt-transition);
  font-family: var(--dt-font-title);
  font-size: 0.85rem;
  color: var(--dt-text-secondary);
  border: 1px solid #ddd;
  border-radius: var(--dt-radius);
  padding: 8px 16px;
}

.dt-partner-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  border-color: var(--dt-gold);
  color: var(--dt-gold);
}

.dt-award-badges {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.dt-award-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--dt-white);
  border: 2px solid var(--dt-gold);
  border-radius: var(--dt-radius);
  box-shadow: var(--dt-shadow);
}

.dt-award-icon {
  width: 48px;
  height: 48px;
  background: var(--dt-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dt-white);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.dt-award-text {
  text-align: left;
}

.dt-award-text strong {
  display: block;
  font-size: 0.9rem;
  color: var(--dt-text);
}

.dt-award-text span {
  font-size: 0.75rem;
  color: var(--dt-text-secondary);
}

/* --- Footer --- */
.dt-footer {
  background: var(--dt-black);
  color: #999;
  padding-top: 64px;
}

.dt-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.dt-footer-brand p {
  color: #888;
  font-size: 0.85rem;
  margin-top: 16px;
  line-height: 1.7;
}

.dt-footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.dt-footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(168,139,90,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dt-gold);
  font-size: 0.85rem;
  transition: var(--dt-transition);
}

.dt-footer-social a:hover {
  background: var(--dt-gold);
  color: var(--dt-black);
}

.dt-footer h4 {
  color: var(--dt-white);
  font-size: 1rem;
  margin-bottom: 20px;
  font-family: var(--dt-font-title);
}

.dt-footer-links {
  list-style: none;
}

.dt-footer-links li {
  margin-bottom: 10px;
}

.dt-footer-links a {
  color: #888;
  font-size: 0.85rem;
  transition: var(--dt-transition);
}

.dt-footer-links a:hover {
  color: var(--dt-gold);
  padding-left: 4px;
}

.dt-footer-contact p {
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 8px;
  line-height: 1.6;
}

.dt-footer-seo {
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.dt-footer-seo p {
  font-size: 0.75rem;
  color: #666;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

.dt-footer-bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
}

.dt-footer-bottom p {
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 4px;
}

.dt-footer-bottom .dt-footer-cert {
  color: var(--dt-gold);
  font-size: 0.75rem;
}

/* --- Breadcrumb --- */
.dt-breadcrumb {
  padding: 100px 0 20px;
  font-size: 0.85rem;
}

.dt-breadcrumb a {
  color: var(--dt-text-secondary);
}

.dt-breadcrumb span {
  color: var(--dt-gold);
}

/* --- Page Header --- */
.dt-page-header {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dt-black);
}

.dt-page-header-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.4;
}

.dt-page-header-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(26,26,26,0.6) 0%, rgba(26,26,26,0.9) 100%);
}

.dt-page-header-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
}

.dt-page-header h1 {
  color: var(--dt-white);
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.dt-page-header h1 .dt-text-gold {
  color: var(--dt-gold);
}

.dt-page-header p {
  color: #aaa;
  max-width: 640px;
  margin: 0 auto;
}

/* --- Article Content --- */
.dt-article-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 24px;
}

.dt-article-content h2 {
  margin-top: 48px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--dt-gold);
}

.dt-article-content h3 {
  margin-top: 32px;
  margin-bottom: 16px;
}

.dt-article-content p {
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 20px;
  color: var(--dt-text);
}

.dt-article-content img {
  border-radius: var(--dt-radius);
  margin: 24px 0;
  box-shadow: var(--dt-shadow);
}

.dt-article-content figcaption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--dt-text-secondary);
  margin-top: -16px;
  margin-bottom: 24px;
}

.dt-article-content blockquote {
  border-left: 4px solid var(--dt-gold);
  padding: 16px 24px;
  margin: 24px 0;
  background: rgba(168,139,90,0.05);
  border-radius: 0 var(--dt-radius) var(--dt-radius) 0;
}

.dt-article-content blockquote p {
  color: var(--dt-text-secondary);
  font-style: italic;
  margin: 0;
}

.dt-article-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* --- Data Table --- */
.dt-data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.dt-data-table th {
  background: var(--dt-black);
  color: var(--dt-gold);
  padding: 12px 16px;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
}

.dt-data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
}

.dt-data-table tr:hover td {
  background: rgba(168,139,90,0.03);
}

/* --- FAQ --- */
.dt-faq-item {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  margin-bottom: 12px;
  box-shadow: var(--dt-shadow);
  overflow: hidden;
}

.dt-faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  transition: var(--dt-transition);
}

.dt-faq-question:hover {
  color: var(--dt-gold);
}

.dt-faq-arrow {
  transition: var(--dt-transition);
  font-size: 0.8rem;
  color: var(--dt-gold);
}

.dt-faq-item.dt-active .dt-faq-arrow {
  transform: rotate(180deg);
}

.dt-faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.dt-faq-item.dt-active .dt-faq-answer {
  padding: 0 24px 20px;
  max-height: 500px;
}

/* --- Chart Container --- */
.dt-chart-container {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 24px;
  box-shadow: var(--dt-shadow);
  margin-bottom: 24px;
}

.dt-chart-container h4 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #eee;
}

.dt-chart-canvas {
  width: 100%;
  height: 350px;
}

/* --- Filter Bar --- */
.dt-filter-bar {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 24px;
  box-shadow: var(--dt-shadow);
  margin-bottom: 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.dt-filter-group {
  flex: 1;
  min-width: 180px;
}

.dt-filter-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--dt-text-secondary);
  margin-bottom: 6px;
}

.dt-filter-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: var(--dt-radius);
  font-family: var(--dt-font-body);
  font-size: 0.9rem;
  background: var(--dt-white);
  transition: var(--dt-transition);
}

.dt-filter-group select:focus {
  outline: none;
  border-color: var(--dt-gold);
}

.dt-filter-btn {
  padding: 10px 24px;
  background: var(--dt-gold);
  color: var(--dt-black);
  border: none;
  border-radius: var(--dt-radius);
  font-family: var(--dt-font-body);
  font-weight: 600;
  cursor: pointer;
  transition: var(--dt-transition);
}

.dt-filter-btn:hover {
  background: #c4a46e;
}

/* --- APP Download --- */
.dt-app-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 48px 0;
}

.dt-app-feature-card {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--dt-shadow);
  transition: var(--dt-transition);
}

.dt-app-feature-card:hover {
  transform: translateY(-4px);
}

.dt-app-feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(168,139,90,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--dt-gold);
}

.dt-download-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 40px 0;
}

.dt-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--dt-gold), #c4a46e);
  color: var(--dt-black);
  border-radius: var(--dt-radius);
  font-weight: 600;
  transition: var(--dt-transition);
  font-size: 0.95rem;
}

.dt-download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(168,139,90,0.3);
  color: var(--dt-black);
}

.dt-qr-section {
  text-align: center;
  padding: 40px 0;
}

.dt-qr-code {
  width: 160px;
  height: 160px;
  background: var(--dt-white);
  border: 2px solid var(--dt-gold);
  border-radius: var(--dt-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 0.8rem;
  color: var(--dt-text-secondary);
}

/* --- Legal Pages --- */
.dt-legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 24px;
}

.dt-legal-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  font-size: 1.5rem;
  color: var(--dt-text);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--dt-gold);
}

.dt-legal-content h3 {
  margin-top: 24px;
  font-size: 1.2rem;
}

.dt-legal-content p {
  line-height: 2;
  color: var(--dt-text);
}

.dt-legal-content ul {
  margin: 12px 0 20px 24px;
  line-height: 2;
}

/* --- Utility --- */
.dt-text-gold { color: var(--dt-gold); }
.dt-text-red { color: var(--dt-red); }
.dt-text-center { text-align: center; }
.dt-mt-0 { margin-top: 0; }
.dt-mb-0 { margin-bottom: 0; }
.dt-mb-24 { margin-bottom: 24px; }
.dt-mb-48 { margin-bottom: 48px; }

/* --- Ink Background SVG --- */
.dt-ink-bg {
  position: relative;
}

.dt-ink-bg::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 80'%3E%3Cpath d='M0,40 C240,80 480,0 720,40 C960,80 1200,0 1440,40 L1440,0 L0,0 Z' fill='%231A1A1A'/%3E%3C/svg%3E") center/cover no-repeat;
  z-index: 1;
}

/* --- Fade In Animation --- */
.dt-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Related Articles Sidebar --- */
.dt-sidebar-widget {
  background: var(--dt-white);
  border-radius: var(--dt-radius);
  padding: 24px;
  box-shadow: var(--dt-shadow);
  margin-bottom: 24px;
}

.dt-sidebar-widget h4 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--dt-gold);
  font-size: 1rem;
}

.dt-sidebar-link {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
  color: var(--dt-text);
  font-size: 0.9rem;
  transition: var(--dt-transition);
}

.dt-sidebar-link:hover {
  color: var(--dt-gold);
  padding-left: 8px;
}

.dt-sidebar-link:last-child {
  border-bottom: none;
}

/* ===== Additional Styles for Column Pages ===== */

.dt-article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.dt-article-body {
  min-width: 0;
}

.dt-article-header {
  margin-bottom: 32px;
}

.dt-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--dt-text-secondary);
  margin-bottom: 16px;
}

.dt-article-lead {
  font-size: 1.15rem;
  line-height: 2;
  color: var(--dt-text);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid #eee;
}

.dt-article-section {
  margin-bottom: 36px;
}

.dt-article-section h2,
.dt-article-section h3 {
  margin-bottom: 16px;
  color: var(--dt-dark, var(--dt-text));
}

.dt-article-section p {
  line-height: 2;
  color: var(--dt-text);
  margin-bottom: 16px;
}

.dt-article-image {
  margin: 24px 0;
  text-align: center;
}

.dt-article-image img {
  width: 100%;
  max-width: 800px;
  border-radius: 4px;
  box-shadow: var(--dt-shadow);
}

.dt-article-image figcaption,
.dt-article-image .dt-image-caption {
  font-size: 0.8rem;
  color: var(--dt-text-secondary);
  margin-top: 8px;
  text-align: center;
}

.dt-blockquote {
  border-left: 4px solid var(--dt-gold);
  padding: 16px 24px;
  margin: 24px 0;
  background: #faf8f5;
  font-style: italic;
  color: var(--dt-text);
  line-height: 1.8;
}

.dt-callout {
  background: linear-gradient(135deg, #faf8f5, #f5f0e8);
  border: 1px solid rgba(168, 139, 90, 0.2);
  border-radius: 4px;
  padding: 24px;
  margin: 24px 0;
}

.dt-callout h4 {
  color: var(--dt-gold);
  margin-bottom: 12px;
}

.dt-callout p {
  margin: 0;
  line-height: 1.8;
}

.dt-body-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.dt-breadcrumb-separator {
  margin: 0 8px;
  color: var(--dt-text-secondary);
}

.dt-page-title {
  font-family: var(--dt-font-title);
  font-size: 2rem;
  color: var(--dt-white);
  font-weight: 700;
}

.dt-faq-container,
.dt-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.dt-faq-section {
  padding: 48px 0;
}

.dt-faq-section h2 {
  text-align: center;
  margin-bottom: 32px;
}

.dt-faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.dt-faq-question-h {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--dt-white);
  border: 1px solid #eee;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.dt-faq-question-h:hover {
  border-color: var(--dt-gold);
  color: var(--dt-gold);
}

.dt-footer-award {
  text-align: center;
  padding: 16px;
  background: rgba(168, 139, 90, 0.05);
  border-radius: 4px;
  margin-top: 16px;
}

.dt-footer-col {
  min-width: 0;
}

.dt-footer-col h4 {
  color: var(--dt-gold);
  margin-bottom: 16px;
  font-size: 1rem;
}

/* Responsive for article layout */
@media (max-width: 1023px) {
  .dt-article-layout {
    grid-template-columns: 1fr;
  }
  .dt-article-sidebar {
    order: -1;
  }
}