:root {
  --bg: #05070b;
  --bg-alt: #0b0f1a;
  --card-bg: #101623;
  --accent: #0084ff;
  --accent-soft: rgba(0, 132, 255, 0.16);
  --accent-green: #16d18f;
  --text-main: #f5f7ff;
  --text-sub: #a9b3c9;
  --border-soft: #202635;
  --radius-lg: 18px;
  --radius-sm: 10px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.48);
  --transition-fast: 0.2s ease;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #101623 0, #05070b 55%, #000 100%);
  color: var(--text-main);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
}

/* 容器 */

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}


/* 顶栏 */

.navbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(5, 7, 11, 0.95), rgba(5, 7, 11, 0.8));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.navbar .container {
  padding-left: 16px;
  padding-right: 16px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  display: inline-block;
  object-fit: contain;
  flex-shrink: 0;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 14px;
  color: var(--text-sub);
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 999px;
  transition: width var(--transition-fast);
}

.nav-links a:hover::after {
  width: 100%;
}

/* 导航栏右侧 */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 语言选择器 */
.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--text-sub);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  border-color: var(--accent);
  color: var(--text-main);
  background: rgba(0, 132, 255, 0.08);
}

.lang-current {
  font-weight: 500;
}

.lang-arrow {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

.lang-selector.open .lang-arrow {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(5, 7, 11, 0.98);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 4px;
  min-width: 120px;
  box-shadow: var(--shadow-soft);
  display: none;
  z-index: 30;
  backdrop-filter: blur(12px);
}

.lang-selector.open .lang-dropdown {
  display: block;
}

.lang-option {
  width: 100%;
  padding: 8px 12px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-sub);
  font-size: 13px;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-option:hover {
  background: rgba(0, 132, 255, 0.12);
  color: var(--text-main);
}

.lang-option.active {
  background: rgba(0, 132, 255, 0.16);
  color: var(--accent);
  font-weight: 500;
}

/* 按钮 */

.btn {
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 14px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, #00a8ff, #0066ff);
  color: #fff;
  box-shadow: 0 12px 30px rgba(0, 102, 255, 0.45);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 35px rgba(0, 102, 255, 0.6);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-main);
}

#reward-start-btn {
  margin-right: 15px;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-sub);
}

.btn-ghost:hover {
  color: var(--accent);
}

.btn-full {
  width: 100%;
}

/* Hero */

.hero {
  padding: 16px 0 5px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 5px;
  align-items: center;
}

.hero-text h1 {
  font-size: 32px;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-text p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.highlight {
  color: #4fd1ff;
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-sub);
}

/* Hero Card + 科技效果 */

.hero-card {
  background: radial-gradient(circle at top left, #101b33, #080b12);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 18px 18px 20px;
  box-shadow: var(--shadow-soft);
}

.tech-card {
  border: 1px solid rgba(0, 170, 255, 0.35);
  box-shadow: 0 0 0 1px rgba(0, 170, 255, 0.12);
}

.hero-card-header h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.hero-card-header p {
  margin: 0;
  font-size: 13px;
  color: var(--text-sub);
}

.hero-steps {
  margin: 18px 0 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.step-number {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.step h4 {
  margin: 0 0 2px;
  font-size: 14px;
}

.step p {
  margin: 0;
  font-size: 12px;
  color: var(--text-sub);
}

/* 通用 Section */

.section {
  padding: 56px 0;
}

.section-reward {
  padding-top: 0;
  padding-bottom: 0;
}

.section-rates {
  padding-top: 0;
}

.section-alt {
  background: radial-gradient(circle at top, #0a0f1e 0, #05070b 80%);
}

.section-title {
  text-align: center;
  font-size: 24px;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 28px;
}

/* 网格 */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.feature-card {
  background: rgba(15, 20, 35, 0.9);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  padding: 18px;
  font-size: 14px;
  color: var(--text-sub);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.feature-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 16px;
  color: var(--text-main);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(0, 132, 255, 0.4);
}

.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 10px;
}

/* 报价列表 */

/* 国家筛选按钮 */
.country-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
  margin-bottom: 20px;
  justify-content: center;
}

.country-filter-btn {
  padding: 8px 16px;
  background: rgba(9, 13, 24, 0.95);
  border: 1px solid rgba(0, 132, 255, 0.35);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.country-filter-btn:hover {
  background: rgba(0, 132, 255, 0.1);
  border-color: rgba(0, 132, 255, 0.6);
}

.country-filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 500;
}

.rates-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.rate-card {
  background: rgba(9, 13, 24, 0.95);
  border-radius: 16px;
  border: 1px solid rgba(0, 132, 255, 0.35);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
}

.rate-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-logo {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: #fff;
}

.circle-apple {
  background: #000;
}

.circle-amazon {
  background: #ff9900;
}

.circle-dark {
  background: #283046;
}

.circle-green {
  background: #16d18f;
}

.circle-gift {
  background: #8e2de2;
}

.rate-name {
  font-size: 14px;
}

.rate-tag {
  font-size: 11px;
  color: var(--text-sub);
}

.rate-right {
  text-align: right;
}

.rate-value {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: #7dd3fc;
}

.more-card {
  grid-column: span 2;
}

.more-label {
  font-size: 14px;
  color: #e5e7eb;
}

.rate-note.contact-service {
  cursor: pointer;
  color: var(--accent);
  transition: opacity var(--transition-fast);
}

.rate-note.contact-service:hover {
  opacity: 0.8;
}

.rate-note {
  font-size: 12px;
  color: var(--text-sub);
}

/* 加载状态 */
.loading-card {
  opacity: 0.7;
}

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(0, 132, 255, 0.3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 奖励区块 */

.reward-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.reward-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 18px;
  font-size: 14px;
  color: var(--text-sub);
}

.reward-list li {
  margin-bottom: 6px;
}

.reward-card {
  background: linear-gradient(145deg, #101728, #050811);
  border-radius: var(--radius-lg);
  border: 1px solid var(--accent-soft);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-soft);
}

.reward-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.reward-mini-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text-sub);
}

.reward-mini-list li {
  padding: 4px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.reward-tip {
  font-size: 12px;
  color: var(--text-sub);
}

/* FAQ */

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-item {
  background: rgba(11, 15, 25, 0.95);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  border: none;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 14px;
}

.faq-answer {
  padding: 0 14px 10px;
  font-size: 13px;
  color: var(--text-sub);
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

.faq-toggle {
  font-size: 16px;
  color: var(--text-sub);
}

/* Footer */

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 18px 0 24px;
  background: #03040a;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 12px;
  color: var(--text-sub);
}

.footer-text {
  margin: 4px 0;
}

.footer-copy {
  margin: 8px 0 0;
}

/* 弹窗通用 */

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 40;
}

.modal.show {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal-content {
  position: relative;
  max-width: 520px;
  margin: 60px auto;
  background: #05070f;
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  padding: 20px 20px 22px;
  box-shadow: var(--shadow-soft);
  z-index: 41;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: none;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-sub);
  cursor: pointer;
}

.modal-subtitle {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 16px;
}

.lead-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
}

.form-field span {
  color: var(--text-main);
}

input,
select {
  background: #05070f;
  border-radius: 10px;
  border: 1px solid var(--border-soft);
  padding: 8px 10px;
  color: var(--text-main);
  font-size: 13px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
}

small {
  font-size: 11px;
  color: var(--text-sub);
}

.form-tip {
  font-size: 12px;
  color: #4fd1ff;
  min-height: 16px;
}

/* 在线聊天弹窗 */

.chat-content {
  max-width: 440px;
}

.chat-placeholder {
  background: #050814;
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  padding: 10px 12px;
  margin-bottom: 10px;
  max-height: 220px;
  overflow-y: auto;
}

.chat-bubble {
  max-width: 90%;
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.chat-bubble.system {
  background: rgba(0, 132, 255, 0.16);
  border: 1px solid rgba(0, 132, 255, 0.35);
}

.chat-bubble.user {
  background: rgba(22, 209, 143, 0.16);
  border: 1px solid rgba(22, 209, 143, 0.35);
  margin-left: auto;
}

.chat-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 6px;
}

.chat-input-row input {
  flex: 1;
  border-radius: 999px;
  background: #05070f;
}

.btn-send {
  border-radius: 999px;
  border: none;
  padding: 0 14px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
}

.chat-tips {
  font-size: 11px;
  color: var(--text-sub);
}

/* 悬浮在线聊天按钮 */

.chat-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 45;
  border-radius: 999px;
  border: 1px solid rgba(0, 132, 255, 0.6);
  background: radial-gradient(circle at top left, rgba(0, 132, 255, 0.3), #05070b);
  color: #e5f2ff;
  padding: 8px 14px;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.7);
}

.chat-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent-green);
  box-shadow: 0 0 10px rgba(22, 209, 143, 0.9);
}

/* 动画 */

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 响应式（手机优先） */

@media (max-width: 880px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: -1;
  }

  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }

  .rates-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .more-card {
    grid-column: span 1;
  }

  .reward-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .nav-links {
    display: none;
  }

  .lang-selector {
    margin-right: 0px;
  }

  .footer-inner {
    flex-direction: column;
  }

  .modal-content {
    margin: 40px 16px;
  }

  .chat-float {
    right: 12px;
    bottom: 12px;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}