/* ==========================================================================
   SUB-PAGES LIGHT TECH STYLES (使用说明 · 开源声明 · 隐私政策 · 联系我们)
   ========================================================================== */

@import url('studio.css');

.subpage-hero {
  padding: 50px 0 30px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 50px;
}

.subpage-hero h1 {
  font-size: clamp(34px, 4.5vw, 54px);
  margin-bottom: 14px;
}

.subpage-lede {
  font-size: 16px;
  color: var(--text-body);
  max-width: 680px;
  line-height: 1.8;
}

/* ==========================================================================
   GUIDE PAGE (使用指南交互步骤卡片)
   ========================================================================== */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.guide-step-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.guide-step-card:hover {
  transform: translateY(-4px);
  background: #ffffff;
  border-color: var(--border-tech);
  box-shadow: var(--shadow-glow-cyan);
}

.guide-step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.guide-step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  background: var(--cyan-soft);
  padding: 4px 10px;
  border-radius: 8px;
  letter-spacing: 0.05em;
}

.guide-step-icon {
  font-size: 22px;
}

.guide-step-card h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.guide-step-card p {
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.8;
}

.guide-tip-box {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--bg-subtle);
  border-left: 3px solid var(--cyan);
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--text-muted);
}

/* Network Troubleshoot Interactive Box */
.troubleshoot-banner {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(240, 249, 255, 0.9));
  border: 1px solid rgba(2, 132, 199, 0.3);
  border-radius: var(--radius-xl);
  padding: 36px 40px;
  box-shadow: var(--shadow-md);
  margin-bottom: 80px;
}

.troubleshoot-banner h3 {
  font-size: 22px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.troubleshoot-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-size: 13.5px;
  line-height: 1.7;
}

.troubleshoot-item strong {
  display: block;
  font-size: 14px;
  color: var(--text-title);
  margin-bottom: 6px;
}

/* ==========================================================================
   NOTICE & OPEN SOURCE & LEGAL (开源与法律文档)
   ========================================================================== */
.notice-box {
  background: rgba(255, 243, 236, 0.7);
  border: 1px solid rgba(255, 107, 44, 0.35);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 36px;
  box-shadow: 0 4px 16px rgba(255, 107, 44, 0.08);
}

.notice-box strong {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--orange);
  font-size: 15px;
  margin-bottom: 8px;
}

.notice-box p {
  color: var(--text-body);
  font-size: 13.5px;
  line-height: 1.75;
}

.legal-content-wrap {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 45px 50px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 80px;
}

.legal-content h2 {
  font-size: 22px;
  margin: 36px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.legal-content h2:first-of-type {
  margin-top: 0;
}

.legal-content p, .legal-content li {
  color: var(--text-body);
  font-size: 14.5px;
  line-height: 1.85;
}

.legal-content ul {
  padding-left: 24px;
  margin: 12px 0 20px;
  display: grid;
  gap: 8px;
}

.legal-content code {
  font-family: var(--font-mono);
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 12.5px;
  color: var(--cyan);
}

.legal-table {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 20px 0 30px;
  background: #ffffff;
}

.legal-table-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.legal-table-row:last-child {
  border-bottom: none;
}

.legal-table-row b {
  font-size: 13.5px;
  color: var(--text-title);
}

.legal-table-row span {
  font-size: 13.5px;
  color: var(--text-body);
  line-height: 1.7;
}

/* ==========================================================================
   CONTACT PAGE (科技感联系联络台)
   ========================================================================== */
.contact-desk-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.95));
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 107, 44, 0.3);
  border-radius: var(--radius-xl);
  padding: 50px 54px;
  box-shadow: 
    0 25px 60px -15px rgba(255, 107, 44, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.9);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 80px;
}

.contact-email-btn-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0;
}

.copy-email-card {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  background: linear-gradient(135deg, var(--orange), #ff8a42);
  color: #ffffff !important;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-mono);
  box-shadow: 0 10px 28px var(--orange-glow);
  cursor: pointer;
  transition: all 0.25s ease;
}

.copy-email-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px var(--orange-glow);
}

.contact-query-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.query-tag {
  padding: 6px 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-body);
}

.contact-security-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.security-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 13.5px;
  line-height: 1.7;
}

.security-item span.sec-icon {
  font-size: 18px;
  flex-shrink: 0;
}

/* Responsive adjustments */
@media (max-width: 860px) {
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .troubleshoot-list {
    grid-template-columns: 1fr;
  }

  .contact-desk-card {
    grid-template-columns: 1fr;
    padding: 36px 28px;
  }

  .legal-content-wrap {
    padding: 32px 24px;
  }

  .legal-table-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}