/* ============================================
   SAWAN GLOBAL · 业务生态落地页样式
   ============================================ */

:root {
  --bg-deep: #0a0a0f;
  --bg-card: #14141c;
  --bg-card-hover: #1a1a26;
  --gold: #c9a86a;
  --gold-light: #e0c489;
  --gold-dark: #8a7544;
  --text: #e8e8ec;
  --text-mute: #8a8a96;
  --text-faint: #5a5a66;
  --border: rgba(201, 168, 106, 0.15);
  --border-strong: rgba(201, 168, 106, 0.35);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
button { cursor: pointer; font-family: inherit; }

/* ============ 顶部导航 ============ */
.topnav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.topnav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.topnav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
  text-decoration: none;
}
.topnav-brand-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  letter-spacing: 3px;
  color: var(--gold);
  font-weight: 500;
}
.topnav-brand-cn {
  font-size: 11px;
  color: var(--text-mute);
  letter-spacing: 4px;
  margin-top: 2px;
}
/* 返回主站：紧凑型 pill 按钮，放置在 brand 和 nav-list 之间 */
.topnav-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 30px;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--gold);
  background: rgba(201, 168, 106, 0.08);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.topnav-back:hover {
  background: var(--gold);
  color: var(--bg-deep);
  border-color: var(--gold);
}
.topnav-back-arrow {
  font-size: 14px;
  transition: transform 0.3s ease;
}
.topnav-back:hover .topnav-back-arrow {
  transform: translateX(-3px);
}
.topnav-list {
  display: flex;
  list-style: none;
  gap: 28px;
  align-items: center;
  flex-shrink: 0;
}
.topnav-list a {
  font-size: 14px;
  color: var(--text);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}
.topnav-list a:hover,
.topnav-list a.active {
  color: var(--gold);
}
.topnav-list a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 1px;
  background: var(--gold);
}

/* ============ Hero ============ */
.biz-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 40px 80px;
  position: relative;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(201, 168, 106, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(201, 168, 106, 0.05) 0%, transparent 50%),
    var(--bg-deep);
}
.biz-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(45deg, transparent, transparent 100px, rgba(201, 168, 106, 0.02) 100px, rgba(201, 168, 106, 0.02) 200px);
  pointer-events: none;
}
.biz-hero-inner { position: relative; z-index: 1; max-width: 1100px; }
.biz-hero-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 14px;
  letter-spacing: 6px;
  color: var(--gold);
  margin-bottom: 30px;
}
.biz-hero-title {
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 500;
  letter-spacing: 8px;
  line-height: 1.1;
  margin-bottom: 30px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-hero-accent {
  font-style: italic;
  margin: 0 12px;
}
.biz-hero-divider {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  margin: 30px auto;
}
.biz-hero-sub {
  font-size: 18px;
  color: var(--text-mute);
  margin-bottom: 50px;
  font-weight: 300;
}
.biz-hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.biz-hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.biz-hero-meta-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--gold);
}
.biz-hero-meta-cn {
  font-size: 14px;
  color: var(--text);
}
.biz-hero-meta-sep {
  color: var(--gold);
  font-size: 16px;
}
.biz-hero-scroll {
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--text-mute);
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s infinite;
}
.biz-hero-scroll span {
  display: block;
  margin-top: 8px;
  font-size: 18px;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============ 容器 ============ */
.biz-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 120px 40px;
}

/* ============ Section 头 ============ */
.biz-section-head {
  text-align: center;
  margin-bottom: 80px;
}
.biz-section-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 13px;
  letter-spacing: 5px;
  color: var(--gold);
  margin-bottom: 20px;
}
.biz-section-title {
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 500;
  letter-spacing: 6px;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-section-divider {
  width: 60px;
  height: 1px;
  background: var(--gold);
  margin: 0 auto 24px;
}
.biz-section-sub {
  font-size: 16px;
  color: var(--text-mute);
  font-weight: 300;
}

/* ============ 战略定位 ============ */
.biz-position { background: var(--bg-deep); }
.biz-position-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 24px;
}
.biz-position-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  transition: all 0.3s ease;
}
.biz-position-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-position-main {
  background: linear-gradient(135deg, rgba(201, 168, 106, 0.08) 0%, var(--bg-card) 100%);
  border-color: var(--border-strong);
  grid-row: span 2;
}
.biz-position-icon {
  font-size: 28px;
  color: var(--gold);
  margin-bottom: 20px;
}
.biz-position-main h3 {
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--gold-light);
}
.biz-position-card h4 {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--gold);
}
.biz-position-card p {
  font-size: 14px;
  color: var(--text-mute);
  line-height: 1.8;
}
.biz-position-tag {
  display: inline-block;
  margin-top: 24px;
  padding: 6px 16px;
  background: rgba(201, 168, 106, 0.15);
  border: 1px solid var(--border-strong);
  border-radius: 30px;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 2px;
}

/* ============ 政策机遇 ============ */
.biz-policy {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-card) 100%);
}
.biz-policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.biz-policy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.biz-policy-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 0;
  background: var(--gold);
  transition: height 0.4s ease;
}
.biz-policy-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-policy-card:hover::before { height: 100%; }
.biz-policy-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px;
  font-weight: 300;
  color: var(--gold-dark);
  margin-bottom: 16px;
  line-height: 1;
}
.biz-policy-card h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 14px;
  color: var(--gold-light);
}
.biz-policy-card p {
  font-size: 14px;
  color: var(--text-mute);
  line-height: 1.8;
  margin-bottom: 20px;
}
.biz-policy-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.biz-policy-tags span {
  padding: 4px 12px;
  background: rgba(201, 168, 106, 0.1);
  border: 1px solid var(--border);
  border-radius: 30px;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
}

/* ============ 三大生态 ============ */
.biz-three {
  background: var(--bg-deep);
}
.biz-three-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 60px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.biz-three-tab {
  padding: 32px 24px;
  background: var(--bg-card);
  border: none;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  color: var(--text-mute);
  transition: all 0.3s ease;
}
.biz-three-tab:last-child { border-right: none; }
.biz-three-tab:hover { background: var(--bg-card-hover); color: var(--text); }
.biz-three-tab.active {
  background: linear-gradient(180deg, rgba(201, 168, 106, 0.15) 0%, var(--bg-card) 100%);
  color: var(--gold-light);
  border-bottom: 2px solid var(--gold);
}
.biz-three-tab-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px;
  font-weight: 300;
  color: var(--gold-dark);
  transition: color 0.3s ease;
}
.biz-three-tab.active .biz-three-tab-en { color: var(--gold); }
.biz-three-tab-cn {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 2px;
}

.biz-three-panel {
  display: none;
  animation: fadeIn 0.6s ease;
}
.biz-three-panel.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.biz-three-hero {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 48px 40px;
  background: linear-gradient(135deg, rgba(201, 168, 106, 0.08) 0%, var(--bg-card) 100%);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  margin-bottom: 60px;
}
.biz-three-hero-icon {
  font-size: 72px;
  color: var(--gold);
  line-height: 1;
}
.biz-three-hero-info h3 {
  font-size: 36px;
  font-weight: 500;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-three-hero-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 14px;
  font-style: italic;
  color: var(--gold);
  letter-spacing: 3px;
  margin-bottom: 16px;
}
.biz-three-hero-info p {
  font-size: 15px;
  color: var(--text-mute);
  line-height: 1.9;
  max-width: 700px;
}
.biz-three-hero-tag {
  padding: 8px 18px;
  background: rgba(201, 168, 106, 0.15);
  border: 1px solid var(--border-strong);
  border-radius: 30px;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 2px;
  white-space: nowrap;
}

/* 子区块头 */
.biz-three-sub { margin-bottom: 60px; }
.biz-three-sub-head { margin-bottom: 32px; }
.biz-three-sub-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 12px;
}
.biz-three-sub-head h4 {
  font-size: 26px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.biz-three-sub-head p {
  font-size: 14px;
  color: var(--text-mute);
}

.biz-three-sub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.biz-three-sub-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
  transition: all 0.3s ease;
}
.biz-three-sub-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-three-sub-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  color: var(--gold-dark);
  margin-bottom: 14px;
}
.biz-three-sub-card h5 {
  font-size: 17px;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: 10px;
}
.biz-three-sub-card p {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.7;
}

/* 双轨 */
.biz-three-dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.biz-three-dual-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 32px;
  transition: all 0.3s ease;
}
.biz-three-dual-card-premium {
  background: linear-gradient(135deg, rgba(201, 168, 106, 0.1) 0%, var(--bg-card) 100%);
  border-color: var(--border-strong);
}
.biz-three-dual-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(201, 168, 106, 0.15);
  border-radius: 30px;
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 20px;
}
.biz-three-dual-card h5 {
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--gold-light);
}
.biz-three-dual-card p {
  font-size: 14px;
  color: var(--text-mute);
  line-height: 1.8;
  margin-bottom: 24px;
}
.biz-three-dual-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.biz-three-dual-price-symbol {
  font-size: 22px;
  color: var(--gold);
}
.biz-three-dual-price-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 36px;
  font-weight: 500;
  color: var(--gold);
}
.biz-three-dual-price-unit {
  font-size: 13px;
  color: var(--text-mute);
}
.biz-three-dual-list {
  list-style: none;
}
.biz-three-dual-list li {
  position: relative;
  padding-left: 22px;
  font-size: 13px;
  color: var(--text-mute);
  line-height: 2;
}
.biz-three-dual-list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 10px;
}

/* 闭环流程 */
.biz-three-flow { margin-bottom: 60px; }
.biz-three-flow-head { margin-bottom: 32px; text-align: center; }
.biz-three-flow-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 12px;
}
.biz-three-flow-head h4 {
  font-size: 26px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.biz-three-flow-head p { font-size: 14px; color: var(--text-mute); }
.biz-three-flow-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.biz-three-flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 110px;
}
.biz-three-flow-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(201, 168, 106, 0.5);
}
.biz-three-flow-dot-end { background: var(--gold-light); }
.biz-three-flow-cn {
  font-size: 13px;
  color: var(--text);
}
.biz-three-flow-arrow {
  color: var(--gold);
  font-size: 18px;
}

/* 标准化产品 */
.biz-three-flow-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.biz-three-flow-product {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  transition: all 0.3s ease;
}
.biz-three-flow-product:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-three-flow-product-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--gold);
  margin-bottom: 12px;
}
.biz-three-flow-product h5 {
  font-size: 20px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.biz-three-flow-product-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(201, 168, 106, 0.15);
  border-radius: 30px;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.biz-three-flow-product ul {
  list-style: none;
}
.biz-three-flow-product li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-mute);
  line-height: 2;
}
.biz-three-flow-product li::before {
  content: '◇';
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* 数据统计 */
.biz-three-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.biz-three-stat { text-align: center; }
.biz-three-stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px;
  font-weight: 500;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 12px;
}
.biz-three-stat-num span {
  font-size: 16px;
  margin-left: 4px;
  color: var(--gold-light);
  font-weight: 300;
}
.biz-three-stat-label {
  font-size: 13px;
  color: var(--text-mute);
}

/* 云品产品网格 */
.biz-three-products {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.biz-three-product {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px 28px;
  text-align: center;
  transition: all 0.3s ease;
}
.biz-three-product:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-three-product-emoji {
  font-size: 56px;
  margin-bottom: 20px;
  line-height: 1;
}
.biz-three-product h5 {
  font-size: 20px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 12px;
}
.biz-three-product p {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 20px;
  line-height: 1.7;
}
.biz-three-product-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(201, 168, 106, 0.1);
  border: 1px solid var(--border);
  border-radius: 30px;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
}

/* 云品流通网络 */
.biz-three-network {
  position: relative;
  height: 400px;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.biz-three-network-center {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gold) 0%, var(--gold-dark) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--bg-deep);
  font-weight: 600;
  box-shadow: 0 0 60px rgba(201, 168, 106, 0.5);
  z-index: 2;
}
.biz-three-network-center-cn { font-size: 24px; }
.biz-three-network-center-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 12px;
  letter-spacing: 3px;
  margin-top: 4px;
}
.biz-three-network-ring {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.biz-three-network-ring::before {
  content: '';
  position: absolute;
  width: 320px; height: 320px;
  border: 1px dashed rgba(201, 168, 106, 0.3);
  border-radius: 50%;
  animation: rotate 30s linear infinite;
}
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.biz-three-network-node {
  position: absolute;
  padding: 16px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 30px;
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 2px;
}
.biz-three-network-node-1 { top: 10%; left: 50%; transform: translateX(-50%); }
.biz-three-network-node-2 { right: 5%; top: 50%; transform: translateY(-50%); }
.biz-three-network-node-3 { bottom: 10%; left: 50%; transform: translateX(-50%); }
.biz-three-network-node-4 { left: 5%; top: 50%; transform: translateY(-50%); }

.biz-three-network-foot {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.biz-three-network-foot-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.biz-three-network-foot-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  color: var(--gold);
  font-weight: 500;
}
.biz-three-network-foot-text {
  font-size: 12px;
  color: var(--text-mute);
}

/* ============ 资源矩阵 ============ */
.biz-resource {
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-card) 50%, var(--bg-deep) 100%);
}
.biz-resource-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.biz-resource-item {
  flex: 1;
  min-width: 170px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 20px;
  text-align: center;
  transition: all 0.3s ease;
}
.biz-resource-item:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}
.biz-resource-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  color: var(--gold-dark);
  margin-bottom: 14px;
}
.biz-resource-item h4 {
  font-size: 18px;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: 10px;
}
.biz-resource-item p {
  font-size: 12px;
  color: var(--text-mute);
  line-height: 1.7;
}
.biz-resource-arrow {
  display: flex;
  align-items: center;
  color: var(--gold);
  font-size: 22px;
}

/* ============ 大本营·西双版纳 ============ */
.biz-base {
  background: var(--bg-deep);
}
.biz-base-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.biz-base-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 13px;
  letter-spacing: 5px;
  color: var(--gold);
  margin-bottom: 20px;
}
.biz-base-title {
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 500;
  letter-spacing: 8px;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-base-divider {
  width: 60px;
  height: 1px;
  background: var(--gold);
  margin-bottom: 24px;
}
.biz-base-desc {
  font-size: 16px;
  color: var(--text-mute);
  line-height: 1.9;
  margin-bottom: 40px;
}
.biz-base-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.biz-base-stat {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
}
.biz-base-stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px;
  font-weight: 500;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.biz-base-stat-num span {
  font-size: 14px;
  margin-left: 4px;
  color: var(--gold-light);
}
.biz-base-stat-label {
  font-size: 12px;
  color: var(--text-mute);
}
.biz-base-right { display: flex; flex-direction: column; gap: 20px; }
.biz-base-feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.3s ease;
}
.biz-base-feature:hover {
  border-color: var(--border-strong);
  transform: translateX(8px);
}
.biz-base-feature-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px;
  font-weight: 300;
  color: var(--gold-dark);
  line-height: 1;
  flex-shrink: 0;
  width: 50px;
  text-align: center;
}
.biz-base-feature h5 {
  font-size: 17px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.biz-base-feature p {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.7;
}

/* ============ 战略路线图 ============ */
.biz-roadmap { background: var(--bg-card); }
.biz-roadmap-track {
  position: relative;
  padding: 60px 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
}
.biz-roadmap-line {
  position: absolute;
  top: 100px; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.biz-roadmap-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.biz-roadmap-year {
  font-family: 'Cormorant Garamond', serif;
  font-size: 36px;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: 24px;
}
.biz-roadmap-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  margin: 0 auto 24px;
  box-shadow: 0 0 20px rgba(201, 168, 106, 0.6);
}
.biz-roadmap-dot-end {
  background: var(--gold-light);
  width: 20px; height: 20px;
}
.biz-roadmap-info {
  padding: 0 12px;
}
.biz-roadmap-info h5 {
  font-size: 18px;
  font-weight: 500;
  color: var(--gold-light);
  margin-bottom: 12px;
}
.biz-roadmap-info p {
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.7;
}

/* ============ 联系 ============ */
.biz-contact { background: var(--bg-deep); }
.biz-contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: center;
}
.biz-contact-eyebrow {
  font-family: 'Cormorant Garamond', serif;
  font-size: 13px;
  letter-spacing: 5px;
  color: var(--gold);
  margin-bottom: 20px;
}
.biz-contact h3 {
  font-family: 'Cormorant Garamond', 'Noto Sans SC', serif;
  font-size: 36px;
  font-weight: 500;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.biz-contact-info p {
  font-size: 16px;
  color: var(--text-mute);
  margin-bottom: 40px;
  line-height: 1.9;
}
.biz-contact-channels {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.biz-contact-channel {
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.biz-contact-channel-label {
  font-size: 13px;
  color: var(--text-mute);
  letter-spacing: 2px;
}
.biz-contact-channel-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px;
  color: var(--gold);
  font-weight: 500;
}
.biz-contact-channel:hover .biz-contact-channel-value { color: var(--gold-light); }

.biz-contact-qr {
  display: flex;
  justify-content: center;
}
.biz-contact-qr-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  text-align: center;
  max-width: 280px;
}
.biz-contact-qr-card img {
  width: 180px;
  height: 180px;
  border-radius: 6px;
  margin: 0 auto 20px;
  display: block;
}
.biz-contact-qr-label {
  font-size: 16px;
  color: var(--gold-light);
  margin-bottom: 8px;
}
.biz-contact-qr-sub {
  font-size: 12px;
  color: var(--text-mute);
}

/* ============ 页脚 ============ */
.biz-footer {
  background: #050508;
  border-top: 1px solid var(--border);
  padding: 50px 40px;
}
.biz-footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.biz-footer-left { max-width: 600px; }
.biz-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}
.biz-footer-brand-en {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  letter-spacing: 3px;
  color: var(--gold);
}
.biz-footer-brand-cn {
  font-size: 12px;
  color: var(--text-mute);
  letter-spacing: 4px;
}
.biz-footer-slogan {
  font-size: 14px;
  color: var(--text-mute);
  margin-bottom: 8px;
  font-style: italic;
}
.biz-footer-copy {
  font-size: 12px;
  color: var(--text-faint);
}
.biz-footer-nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.biz-footer-nav a {
  font-size: 13px;
  color: var(--text-mute);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.biz-footer-nav a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ============ 滚动出现动画 ============ */
.reveal {
  opacity: 1;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.js-loaded .reveal:not(.visible) { opacity: 0; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
  .biz-position-grid {
    grid-template-columns: 1fr 1fr;
  }
  .biz-position-main { grid-row: auto; grid-column: span 2; }
  .biz-policy-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-three-sub-grid,
  .biz-three-flow-products,
  .biz-three-products { grid-template-columns: repeat(2, 1fr); }
  .biz-three-stats { grid-template-columns: repeat(2, 1fr); }
  .biz-resource-flow { flex-direction: column; }
  .biz-resource-arrow { transform: rotate(90deg); }
  .biz-base-grid { grid-template-columns: 1fr; gap: 50px; }
  .biz-roadmap-track { grid-template-columns: repeat(3, 1fr); }
  .biz-contact-grid { grid-template-columns: 1fr; gap: 50px; }
  .biz-three-network { height: 300px; }
}

@media (max-width: 768px) {
  .topnav-inner { padding: 14px 20px; flex-direction: column; gap: 12px; }
  .topnav-back { font-size: 11px; padding: 5px 12px; }
  .topnav-list { gap: 16px; flex-wrap: wrap; justify-content: center; font-size: 12px; }
  .topnav-list a { font-size: 12px; }
  .biz-container { padding: 80px 20px; }
  .biz-hero { padding: 120px 20px 60px; }
  .biz-hero-meta { flex-direction: column; gap: 12px; }
  .biz-hero-meta-sep { display: none; }
  .biz-position-grid,
  .biz-policy-grid,
  .biz-three-sub-grid,
  .biz-three-dual,
  .biz-three-flow-products,
  .biz-three-products,
  .biz-three-stats,
  .biz-three-network-foot { grid-template-columns: 1fr; }
  .biz-three-tabs { grid-template-columns: 1fr; }
  .biz-three-tab { border-right: none; border-bottom: 1px solid var(--border); }
  .biz-three-hero { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .biz-three-stats { grid-template-columns: repeat(2, 1fr); padding: 24px; }
  .biz-three-network { height: auto; padding: 40px 0; }
  .biz-three-network-ring::before { display: none; }
  .biz-three-network-node {
    position: static;
    display: inline-block;
    margin: 8px;
  }
  .biz-base-stats { grid-template-columns: 1fr; }
  .biz-roadmap-track { grid-template-columns: 1fr; }
  .biz-roadmap-line { display: none; }
  .biz-footer-inner { flex-direction: column; text-align: center; }
}