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

:root {
  --color-primary: #18a858;
  --color-primary-dark: #128745;
  --color-primary-light: #e8f7ef;
  --color-accent: #4472c4;
  --color-accent-dark: #365aa0;
  --color-accent-light: #eef3fb;
  --color-accent-border: #c5d4ef;
  --color-bg: #f5faf7;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #5c6860;
  --color-border: #dce8e1;
  --color-blue: var(--color-accent);
  --color-green: var(--color-primary);
  --color-purple: #4a6fa5;
  --shadow-sm: 0 1px 3px rgba(24, 88, 56, 0.06);
  --shadow-md: 0 4px 16px rgba(24, 88, 56, 0.08);
  --shadow-lg: 0 8px 32px rgba(24, 88, 56, 0.1);
  --radius: 12px;
  --radius-lg: 20px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  background: #fff;
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.logo-img-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border-radius: 8px;
  padding: 2px;
  flex-shrink: 0;
}

.logo-img-wrap-footer {
  border-radius: 6px;
}

.logo-img-wrap-modal {
  border-radius: 10px;
  padding: 4px;
  margin-bottom: 12px;
}

.logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  display: block;
}

.logo-img-sm {
  height: 36px;
}

.logo-img-wrap-paikebang {
  background: transparent;
  padding: 0;
}

.logo-img-paikebang {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 10px;
}

.logo-img-wrap-linli {
  background: transparent;
  padding: 0;
}

.logo-img-linli {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 10px;
}

.logo-img-wrap-qidun {
  background: transparent;
  padding: 0;
}

.logo-img-qidun {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 10px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

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

.nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Hero */
.hero {
  padding: 64px 0 80px;
  background: linear-gradient(135deg, #eef8f2 0%, var(--color-bg) 50%, #eef3fb 100%);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 20px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #128745 0%, var(--color-primary) 55%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content p {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  max-width: 440px;
}

.hero-card {
  display: flex;
  gap: 12px;
  padding: 28px 20px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.hero-card-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.stat {
  flex: 1;
  text-align: center;
  padding: 12px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.stat-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  min-height: 34px;
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(24, 168, 88, 0.28);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

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

.btn-renew {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 20px;
  font-size: 13px;
  text-decoration: none;
}

.btn-renew:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.btn-renew-disabled,
.btn-renew-disabled:hover {
  background: #d1d5db;
  color: #9ca3af;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-disabled,
.btn-disabled:hover {
  background: #f3f4f6;
  border-color: #d1d5db;
  color: #9ca3af;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  pointer-events: none;
}

.btn-download-unavailable,
.btn-download-unavailable:hover {
  background: #fff;
  border-color: #d1d5db;
  color: #6b7280;
  cursor: pointer;
  transform: none;
  box-shadow: none;
}

/* Section */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* Products */
.products {
  padding: 80px 0;
}

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

.product-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.product-icon svg {
  width: 24px;
  height: 24px;
}

.product-icon-blue {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.product-icon-green {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.product-icon-purple {
  background: #eef2f8;
  color: var(--color-purple);
}

.product-tag {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  background: #fef3c7;
  color: #d97706;
}

.product-tag-new {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.product-tag-pro {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.product-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  flex: 1;
}

.product-features {
  list-style: none;
  margin-bottom: 24px;
}

.product-features li {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
}

.product-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-green);
  font-weight: 700;
  font-size: 12px;
}

.product-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  flex-shrink: 0;
  justify-content: flex-end;
}

.btn-download {
  background: #fff;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 8px 16px;
  font-size: 13px;
  text-decoration: none;
}

.btn-download:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-customize {
  background: #fff;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  font-size: 13px;
  text-decoration: none;
}

.btn-customize:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.price-label {
  display: block;
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}

.price-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.price-from {
  font-size: 16px;
  font-weight: 600;
  margin-left: 2px;
}

.price-unit {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
}

/* Help */
.help {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.help-item {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.help-num {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 6px;
  margin-bottom: 10px;
}

.help-item h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.help-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* Usage */
.usage {
  padding: 80px 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.usage-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.usage-item {
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.usage-num {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 6px;
  margin-bottom: 10px;
}

.usage-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.usage-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.usage-notice {
  max-width: 900px;
  margin: 32px auto 0;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.usage-notice a {
  color: var(--color-primary);
}

.usage-notice a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  padding: 40px 0;
  background: #1a1a1a;
  color: #aaa;
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-info {
  margin-bottom: 20px;
}

.footer-info p {
  font-size: 13px;
  line-height: 2;
}

.footer-copy {
  font-size: 12px;
  color: #666;
}

.footer-icp {
  margin-top: 6px;
  font-size: 12px;
}

.footer-icp a {
  color: #888;
  text-decoration: none;
}

.footer-icp a:hover {
  color: #aaa;
  text-decoration: underline;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden {
  display: none;
}

.hidden {
  display: none !important;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.modal-content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 90%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: 1;
}

.modal-logo {
  height: 64px;
  width: auto;
  object-fit: contain;
  display: block;
}

.modal-content h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.modal-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.modal-product-name {
  font-size: 18px !important;
  font-weight: 700;
  color: var(--color-primary) !important;
  margin: 12px 0 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.modal-actions .btn {
  flex: 1;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }

  .product-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .corp-customization-grid {
    grid-template-columns: 1fr;
  }

  .help-grid {
    grid-template-columns: 1fr;
  }

  .usage-item {
    padding: 20px;
  }
}

@media (max-width: 600px) {
  .nav {
    display: none;
  }

  .hero h1 {
    font-size: 26px;
  }

  .hero-card,
  .hero-card-stats {
    grid-template-columns: repeat(2, 1fr);
    flex-direction: unset;
    gap: 8px;
  }

  .products,
  .help {
    padding: 48px 0;
  }

  .tutorial-quick-steps {
    padding: 18px 16px;
  }

  .tutorial-quick-steps-grid {
    grid-template-columns: 1fr;
  }
}

/* Purchase page */
.purchase-page {
  padding: 32px 0 64px;
  min-height: calc(100vh - 64px - 80px);
}

.back-link {
  display: inline-block;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 24px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--color-primary);
}

.purchase-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
  align-items: start;
}

.purchase-product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: sticky;
  top: 88px;
}

.purchase-product-card h1 {
  font-size: 22px;
  margin-bottom: 8px;
}

.purchase-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.purchase-price-box {
  padding: 16px;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.purchase-price-box .price-value {
  font-size: 32px;
}

.purchase-form-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.trial-notice {
  display: flex;
  gap: 12px;
  padding: 16px;
  margin-bottom: 24px;
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius);
}

.trial-notice-icon {
  font-size: 20px;
  line-height: 1.4;
  flex-shrink: 0;
}

.trial-notice-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.trial-notice-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.trial-notice-desc a {
  color: var(--color-blue);
  font-weight: 600;
  text-decoration: none;
}

.trial-notice-desc a:hover {
  text-decoration: underline;
}

.trial-notice-desc strong {
  color: var(--color-text);
}

.purchase-form-section h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.form-hint {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.purchase-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.required {
  color: #ef4444;
}

.form-group input[type="text"],
.form-group input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--color-primary);
}

.field-hint {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 6px;
}

.field-hint-key {
  color: #ef4444;
  font-weight: 500;
  margin-top: 8px;
}

.field-hint-key em {
  font-style: italic;
  font-weight: 600;
}

.field-hint + .field-hint {
  margin-top: 4px;
}

.file-upload {
  position: relative;
}

.file-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 28px 20px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  cursor: pointer;
  transition: all 0.2s;
}

.file-upload:hover .file-upload-label {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.file-upload-icon {
  font-size: 28px;
}

.file-upload-text {
  font-size: 14px;
  font-weight: 600;
}

.file-upload-name {
  font-size: 12px;
  color: var(--color-text-secondary);
  word-break: break-all;
  text-align: center;
  line-height: 1.5;
}

.btn-block {
  width: 100%;
  padding: 14px;
  font-size: 15px;
}

.payment-section {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.payment-section.hidden {
  display: none;
}

.payment-section h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.payment-hint {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.payment-info {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
}

.payment-info strong {
  color: var(--color-primary);
  font-size: 18px;
}

.qr-code-wrap {
  display: inline-block;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.qr-code-wrap-wechat {
  border-color: #07c160;
  box-shadow: 0 4px 16px rgba(7, 193, 96, 0.15);
}

.qr-code-wrap img {
  display: block;
  width: 240px;
  height: 240px;
}

.payment-note {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 16px;
}

.pay-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#pay-confirm-modal:not(.hidden) {
  z-index: 10001;
}

#public-key-error-modal:not(.hidden),
#purchase-message-modal:not(.hidden) {
  z-index: 10002;
}

.pay-modal:not(.hidden) {
  display: flex !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

body.pay-modal-open {
  overflow: hidden;
}

.pay-modal-locked .pay-modal-backdrop {
  pointer-events: none;
  cursor: default;
}

.pay-modal-locked .pay-modal-close {
  display: none;
}

.pay-modal.hidden {
  display: none;
}

.pay-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.55);
  backdrop-filter: blur(2px);
}

.pay-modal-dialog {
  position: relative;
  width: min(420px, 100%);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  padding: 28px 24px 24px;
  border-radius: var(--radius-lg);
  background: #fff;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.25s ease;
}

.pay-modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.pay-modal-close:hover {
  background: #f3f4f6;
  color: var(--color-text);
}

.pay-modal-desc,
.pay-modal-info {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.pay-modal-info {
  margin: 12px auto 16px;
  max-width: 360px;
  display: grid;
  gap: 10px;
  text-align: left;
}

.pay-info-row {
  display: grid;
  grid-template-columns: 9.5em 1fr;
  gap: 8px 12px;
  align-items: baseline;
}

.pay-info-label {
  color: var(--color-text-secondary);
  text-align: right;
  white-space: nowrap;
}

.pay-info-label::after {
  content: "：";
}

.pay-info-value {
  color: var(--color-text);
  word-break: break-all;
}

.pay-info-value-highlight {
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 600;
}

.pay-info-value-amount {
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 700;
}

.pay-confirm-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.pay-confirm-actions .btn {
  width: 100%;
}

.pay-modal-qr {
  margin: 0 auto 12px;
}

.pay-modal-dialog-success {
  padding-top: 32px;
}

.pay-modal-dialog-success .payment-success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 32px;
  font-weight: 700;
  line-height: 64px;
}

.pay-modal-dialog-success h3 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pay-modal-dialog-success .payment-success-message {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 10px;
}

.pay-modal-dialog-success .payment-success-tip {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.pay-modal-dialog-unavailable {
  padding-top: 32px;
}

.pay-modal-dialog-unavailable .download-unavailable-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 28px;
  font-weight: 700;
  line-height: 64px;
}

.pay-modal-dialog-unavailable h3 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pay-modal-dialog-unavailable .download-unavailable-message {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 10px;
}

.pay-modal-dialog-unavailable .download-unavailable-tip {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.pay-modal-dialog-email {
  padding-top: 32px;
}

.pay-modal-dialog-email .download-email-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 28px;
  font-weight: 700;
  line-height: 64px;
}

.pay-modal-dialog-email h3 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.pay-modal-dialog-email .download-email-message {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 10px;
}

.pay-modal-dialog-email .download-email-tip {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.pay-modal-dialog-failure {
  padding-top: 32px;
}

.pay-modal-dialog-failure .payment-failure-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: #fef2f2;
  color: #dc2626;
  font-size: 32px;
  font-weight: 700;
  line-height: 64px;
  text-align: center;
}

.pay-modal-dialog-failure h3 {
  font-size: 22px;
  color: #dc2626;
  margin-bottom: 12px;
}

.pay-modal-dialog-failure .payment-failure-message {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 20px;
}

.pay-failure-actions {
  margin-top: 0;
}

.payment-waiting {
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.payment-waiting-dots {
  display: inline-block;
  width: 1.25em;
  text-align: left;
}

.payment-waiting-dots.is-animating::after {
  content: "";
  animation: payment-waiting-dots 1.2s steps(4, end) infinite;
}

@keyframes payment-waiting-dots {
  0% {
    content: "";
  }
  25% {
    content: ".";
  }
  50% {
    content: "..";
  }
  75%,
  100% {
    content: "...";
  }
}

.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-page h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-page p {
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* Contact page */
.contact-page {
  padding: 32px 0 64px;
  min-height: calc(100vh - 64px - 80px);
}

.contact-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.contact-value {
  font-size: 16px;
  color: var(--color-text);
  margin: 0;
}

a.contact-value {
  color: var(--color-primary);
  text-decoration: none;
}

a.contact-value:hover {
  text-decoration: underline;
}

.contact-qrcode {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.contact-qrcode-img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: #fff;
}

.contact-qrcode-hint {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* Usage page */
.usage-page {
  padding: 32px 0 64px;
  min-height: calc(100vh - 64px - 80px);
}

.usage-page .usage-list {
  margin-bottom: 24px;
}

/* Tutorial page */
.tutorial-page {
  padding: 32px 0 64px;
  min-height: calc(100vh - 64px - 80px);
}

.tutorial-quick-steps {
  margin-bottom: 32px;
  padding: 24px 28px;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-bg) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.tutorial-quick-steps-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--color-border);
}

.tutorial-quick-steps-title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
}

.tutorial-quick-steps-desc {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.tutorial-quick-steps-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 12px;
}

.tutorial-quick-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  min-height: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.tutorial-quick-card:hover {
  border-color: rgba(24, 168, 88, 0.35);
  box-shadow: var(--shadow-sm);
}

.tutorial-quick-card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.tutorial-quick-card-text {
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-text);
}

.tutorial-quick-step-link {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: none;
}

.tutorial-quick-step-link:hover {
  text-decoration: underline;
}

.tutorial-empty {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  color: var(--color-text-secondary);
}

.tutorial-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tutorial-section {
  margin-top: 12px;
  padding: 20px 0 4px;
  border-top: 1px solid var(--color-border);
}

.tutorial-section h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: var(--color-text);
}

.tutorial-section p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.tutorial-item {
  display: flex;
  gap: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.tutorial-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius-md);
}

.tutorial-body h4 {
  font-size: 17px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.tutorial-body p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.tutorial-body p:last-child {
  margin-bottom: 0;
}

.tutorial-tips {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.tutorial-tips li + li {
  margin-top: 8px;
}

.tutorial-link-wrap {
  margin-top: 16px !important;
}

.tutorial-link {
  color: var(--color-primary);
  font-weight: 500;
}

.tutorial-link:hover {
  text-decoration: underline;
}

.tutorial-images {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tutorial-figure {
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}

.tutorial-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.tutorial-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

/* Download page */
.download-page {
  padding: 32px 0 64px;
  min-height: calc(100vh - 64px - 80px);
}

.download-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 36px;
}

.download-header h1 {
  font-size: 24px;
  margin-bottom: 6px;
}

.download-header p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.download-grid-three {
  grid-template-columns: repeat(3, 1fr);
}

.download-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.download-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.download-card-icon svg {
  width: 26px;
  height: 26px;
}

.download-card-icon-server {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.download-card-icon-client {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.download-card h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.download-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 10px;
}

.download-badge-trial {
  background: #fef3c7;
  color: #d97706;
}

.download-badge-free {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.download-card-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  flex: 1;
}

.download-meta {
  list-style: none;
  margin-bottom: 20px;
}

.download-meta li {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border);
}

.download-meta li:last-child {
  border-bottom: none;
}

.download-meta span {
  color: var(--color-text-secondary);
}

.mock-url {
  font-size: 11px;
  color: var(--color-text-secondary);
  word-break: break-all;
  text-align: right;
  max-width: 60%;
}

.download-tips {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.download-tips h3 {
  font-size: 16px;
  margin-bottom: 12px;
}

.download-tips ol {
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 2;
}

.download-tips strong {
  color: var(--color-text);
}

.download-customize {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding: 20px 24px;
  background: linear-gradient(135deg, #eef8f2 0%, var(--color-primary-light) 100%);
  border: 1px solid #b8e6cc;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgba(24, 168, 88, 0.08);
}

.download-customize-icon {
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
}

.download-customize-content {
  flex: 1;
  min-width: 0;
}

.download-customize h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.download-customize p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.download-customize-btn {
  flex-shrink: 0;
  padding: 12px 24px;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .download-grid,
  .download-grid-three {
    grid-template-columns: 1fr;
  }

  .product-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .product-actions {
    justify-content: flex-end;
  }

  .download-customize {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .download-customize-btn {
    width: 100%;
  }
}

@media (max-width: 900px) {
  .purchase-layout {
    grid-template-columns: 1fr;
  }

  .purchase-product-card {
    position: static;
  }
}

/* Corporate homepage */
.corp-hero-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 24px;
}

.corp-hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.corp-hero-stat strong {
  font-size: 15px;
  color: var(--color-text);
}

.corp-hero-stat span {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.corp-product-logo {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  object-fit: contain;
  margin-bottom: 16px;
}

.corp-about {
  padding: 48px 0;
}

.corp-about-text {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  text-align: center;
}

.corp-about-text:last-child {
  margin-bottom: 0;
}

.corp-products {
  padding-top: 0;
}

.corp-product-grid {
  grid-template-columns: repeat(2, 1fr);
  max-width: 900px;
  margin: 0 auto;
}

.corp-customization {
  padding: 48px 0 64px;
}

.corp-customization-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto 32px;
}

.corp-customization-card {
  padding: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.corp-customization-tag {
  display: block;
  width: 100%;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.corp-customization-card p {
  padding: 16px 20px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.corp-customization-cta {
  text-align: center;
}

.corp-product-card {
  width: 100%;
}

.corp-product-subtitle {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin: -4px 0 10px;
}

/* Paikebang product page */
.paikebang-hero-inner {
  grid-template-columns: 1fr;
  text-align: center;
}

.paikebang-hero-inner .hero-content p {
  margin-left: auto;
  margin-right: auto;
}

.paikebang-intro {
  padding: 48px 0;
}

.paikebang-intro-text {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  text-align: center;
}

.paikebang-intro-text:last-of-type {
  margin-bottom: 32px;
}

.paikebang-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.paikebang-feature-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.paikebang-feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.paikebang-feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.paikebang-download {
  padding: 48px 0;
}

.corp-hero,
.paikebang-hero {
  background: #fff;
}

.paikebang-customization {
  padding: 48px 0 64px;
}

.paikebang-customize-card {
  max-width: 900px;
  margin: 0 auto;
}

.paikebang-customize-email {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.paikebang-customize-email a {
  color: var(--color-accent);
  text-decoration: none;
}

.paikebang-customize-email a:hover {
  text-decoration: underline;
}

.paikebang-download-card {
  max-width: 420px;
  margin: 0 auto;
}

.paikebang-download-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  text-align: center;
}

.paikebang-download-icp {
  margin: -4px 0 12px;
  font-size: 13px;
  font-weight: 600;
  color: #d14343;
  text-align: left;
}

.paikebang-download-icp a {
  color: #d14343;
  text-decoration: none;
}

.paikebang-download-icp a:hover {
  color: #b83232;
  text-decoration: underline;
}

.paikebang-download-form {
  margin-top: 8px;
}

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

.paikebang-download-error {
  margin-top: 12px;
  font-size: 13px;
  color: #d14343;
  text-align: center;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.download-gate-form .form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.download-gate-form input[type="email"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 14px;
}

.download-email-hint {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.cookie-consent {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1200;
  padding: 16px;
  background: rgba(17, 24, 39, 0.96);
  color: #fff;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.18);
}

.cookie-consent.hidden {
  display: none;
}

.site-notice {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1190;
  padding: 16px;
  background: rgba(255, 251, 235, 0.98);
  color: var(--color-text);
  border-bottom: 1px solid #f0d080;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.site-notice.hidden {
  display: none;
}

body.site-notice-visible {
  padding-top: var(--site-notice-offset, 0);
}

.device-access-banner {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1185;
  padding: 14px 16px;
  background: rgba(239, 246, 255, 0.98);
  color: var(--color-text);
  border-bottom: 1px solid #bfdbfe;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.08);
}

.device-access-banner.hidden {
  display: none;
}

.device-access-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.device-access-icon {
  font-size: 28px;
  line-height: 1;
  flex-shrink: 0;
}

.device-access-text {
  flex: 1 1 240px;
  min-width: 0;
}

.device-access-text h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: #1d4ed8;
}

.device-access-text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

#device-access-dismiss {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 10px 16px;
  font-size: 13px;
}

body.device-access-visible {
  padding-top: var(--device-access-offset, 0);
}

@media (max-width: 640px) {
  .device-access-inner {
    flex-direction: column;
    align-items: stretch;
  }

  #device-access-dismiss {
    width: 100%;
  }
}

body.site-notice-visible .header {
  top: var(--site-notice-offset, 0);
}

.site-notice-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-notice-text h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #9a6700;
}

.site-notice-text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-line;
}

.site-notice-actions {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .site-notice-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .site-notice-actions .btn {
    width: 100%;
  }
}

.cookie-consent-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cookie-consent-text h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.cookie-consent-text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

.cookie-consent-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .cookie-consent-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-consent-actions {
    width: 100%;
  }

  .cookie-consent-actions .btn {
    flex: 1;
  }
}

@media (max-width: 900px) {
  .paikebang-feature-grid {
    grid-template-columns: 1fr;
  }
}

/* Linli product page */
.linli-intro {
  padding: 48px 0;
}

.linli-intro-text {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  text-align: center;
}

.linli-intro-text:last-of-type {
  margin-bottom: 32px;
}

.linli-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.linli-feature-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.linli-feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.linli-feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.linli-services {
  padding: 48px 0;
  background: var(--color-surface);
}

.linli-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.linli-service-card {
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.linli-service-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  color: #1a8cff;
}

.linli-service-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.linli-screenshots {
  padding: 48px 0;
}

.linli-screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.linli-screenshot-item {
  margin: 0;
  text-align: center;
}

.linli-screenshot-frame {
  background: #f5f7fa;
  border-radius: 16px;
  padding: 16px;
  overflow: hidden;
  line-height: 0;
}

.linli-screenshot-frame img {
  width: 100%;
  max-width: 220px;
  display: block;
  margin: 0 auto;
  border: none;
  box-shadow: none;
  border-radius: 0;
  vertical-align: top;
}

.linli-screenshot-item figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.linli-use {
  padding: 48px 0;
  background: var(--color-surface);
}

.linli-use-steps {
  list-style: none;
  max-width: 640px;
  margin: 0 auto 20px;
  padding: 0;
}

.linli-use-steps li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.linli-use-steps li:last-child {
  border-bottom: none;
}

.linli-use-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a8cff, #00c9b7);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  border-radius: 50%;
}

.linli-use-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  padding-top: 4px;
}

.linli-use-note {
  max-width: 640px;
  margin: 0 auto;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  text-align: center;
}

.linli-cooperation {
  padding: 48px 0 64px;
}

.linli-cooperation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.linli-cooperation-card {
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.linli-cooperation-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.linli-cooperation-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  .linli-feature-grid,
  .linli-cooperation-grid {
    grid-template-columns: 1fr;
  }

  .linli-service-grid,
  .linli-screenshot-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .linli-service-grid,
  .linli-screenshot-grid {
    grid-template-columns: 1fr;
  }
}

/* Qidun product page */
.qidun-intro {
  padding: 48px 0;
}

.qidun-intro-text {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  text-align: center;
}

.qidun-intro-text:last-of-type {
  margin-bottom: 32px;
}

.qidun-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.qidun-feature-card {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.qidun-feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.qidun-feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.qidun-solutions {
  padding: 48px 0;
  background: var(--color-surface);
}

.qidun-solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.qidun-solution-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.qidun-solution-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #2d8f4e;
}

.qidun-solution-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.qidun-solution-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.qidun-solution-highlights li {
  font-size: 12px;
  padding: 4px 10px;
  background: rgba(45, 143, 78, 0.08);
  color: #2d8f4e;
  border-radius: 999px;
  font-weight: 500;
}

.qidun-consultation {
  padding: 48px 0 64px;
}

.qidun-consultation-card {
  max-width: 900px;
  margin: 0 auto;
}

.qidun-consultation-email {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.qidun-consultation-email a {
  color: var(--color-accent);
  text-decoration: none;
}

.qidun-consultation-email a:hover {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .qidun-feature-grid,
  .qidun-solution-grid {
    grid-template-columns: 1fr;
  }

  .corp-product-grid {
    grid-template-columns: 1fr;
  }
}