/* ==========================================================================
   首页专用样式
   ========================================================================== */

/* Hero 区 ---------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 197, 24, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 197, 24, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}
.hero-glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.15), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-content .badge { margin-bottom: 24px; }
.hero-title {
  font-size: clamp(36px, 5.5vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-title .accent { color: var(--color-primary); }
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-2);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--color-text-3);
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}
.hero-meta strong {
  display: block;
  color: var(--color-text);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 2px;
}

/* Hero 视觉：硬件监控卡片 ----------------------------------------------- */
.hero-visual {
  position: relative;
}
.hw-card {
  background: linear-gradient(180deg, #1f1f23, #16161a);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.hw-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.6;
}
.hw-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.hw-card-title { font-size: 14px; font-weight: 600; color: var(--color-text-2); }
.hw-card-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-success);
}
.status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse 1.6s var(--ease) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}
.hw-row {
  display: grid;
  grid-template-columns: 100px 90px 1fr;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 13px;
}
.hw-label { color: var(--color-text-3); }
.hw-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.hw-value small {
  font-size: 10px;
  color: var(--color-text-muted);
  margin-left: 2px;
  font-weight: 400;
}
.hw-bar {
  height: 4px;
  background: var(--color-bg-3);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.hw-bar i {
  position: absolute;
  inset: 0;
  width: var(--p, 0%);
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: 2px;
  animation: barFill 1.5s var(--ease);
}
@keyframes barFill {
  from { width: 0%; }
}

/* 信任栏 ----------------------------------------------------------------- */
.trust-bar {
  padding: 40px 0;
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.trust-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.trust-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.trust-list strong {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.trust-list span {
  font-size: 13px;
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 使用场景 --------------------------------------------------------------- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scenario-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}
.scenario-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(245, 197, 24, 0.04));
  opacity: 0;
  transition: opacity var(--t);
}
.scenario-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-yellow);
}
.scenario-card:hover::before { opacity: 1; }
.scenario-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: rgba(245, 197, 24, 0.1);
  color: var(--c, var(--color-primary));
  margin-bottom: 20px;
  position: relative;
}
.scenario-icon svg { width: 24px; height: 24px; }
.scenario-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  position: relative;
}
.scenario-card p {
  font-size: 14px;
  color: var(--color-text-3);
  line-height: 1.7;
  margin-bottom: 16px;
  position: relative;
}
.scenario-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  position: relative;
}
.scenario-tags li {
  font-size: 11px;
  padding: 3px 10px;
  background: var(--color-bg-3);
  color: var(--color-text-2);
  border-radius: 100px;
  font-weight: 500;
}

/* 核心特性 --------------------------------------------------------------- */
.features { background: var(--color-bg-2); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--t);
  position: relative;
}
.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}
.feature-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  display: inline-block;
  padding: 4px 10px;
  background: rgba(245, 197, 24, 0.1);
  border-radius: var(--radius-sm);
}
.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--color-text-3);
  line-height: 1.7;
  margin: 0;
}

/* 用户评价 --------------------------------------------------------------- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all var(--t);
}
.testimonial:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.testimonial.featured {
  background: linear-gradient(180deg, rgba(245, 197, 24, 0.08), var(--color-surface));
  border-color: var(--color-primary);
  box-shadow: var(--shadow-yellow);
}
.testimonial-stars {
  color: var(--color-primary);
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.testimonial blockquote {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-2);
  flex: 1;
  position: relative;
  padding-left: 16px;
  border-left: 2px solid var(--color-primary);
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 15px;
  flex-shrink: 0;
}
.testimonial-author strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}
.testimonial-author span {
  font-size: 12px;
  color: var(--color-text-3);
}

/* CTA 区 ----------------------------------------------------------------- */
.cta-section { background: var(--color-bg-2); }
.cta-card {
  background: linear-gradient(135deg, var(--color-bg-3), var(--color-bg));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 56px;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 40px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.15), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}
.cta-content { position: relative; z-index: 1; }
.cta-content .badge { margin-bottom: 16px; }
.cta-content h2 {
  font-size: clamp(28px, 4vw, 38px);
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 16px;
  color: var(--color-text-2);
  margin-bottom: 28px;
  max-width: 520px;
}
.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.cta-meta {
  font-size: 13px;
  color: var(--color-text-3);
  margin: 0;
}
.cta-visual { position: relative; z-index: 1; }
.cta-qr-stack {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.cta-qr {
  background: #fff;
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
  width: 130px;
  box-shadow: var(--shadow);
}
.qr-mock {
  width: 100px;
  height: 100px;
  background:
    linear-gradient(45deg, #1a1a1c 25%, transparent 25%, transparent 75%, #1a1a1c 75%) 0 0/12px 12px,
    linear-gradient(45deg, #1a1a1c 25%, transparent 25%, transparent 75%, #1a1a1c 75%) 6px 6px/12px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
  position: relative;
}
.qr-mock::before, .qr-mock::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  border: 4px solid #1a1a1c;
  background: #fff;
}
.qr-mock::before { top: 8px; left: 8px; }
.qr-mock::after { top: 8px; right: 8px; }
.qr-mock.alt {
  background:
    linear-gradient(45deg, #F5C518 25%, transparent 25%, transparent 75%, #F5C518 75%) 0 0/12px 12px,
    linear-gradient(45deg, #F5C518 25%, transparent 25%, transparent 75%, #F5C518 75%) 6px 6px/12px 12px;
  color: #1a1a1c;
}
.qr-mock.alt::before, .qr-mock.alt::after {
  border-color: #F5C518;
  background: #fff;
}
.cta-qr small {
  font-size: 12px;
  color: #1a1a1a;
  font-weight: 600;
}

/* 响应式 ----------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .scenario-grid, .feature-grid, .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-card { grid-template-columns: 1fr; padding: 40px; }
  .trust-list { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 640px) {
  .hero { padding: 60px 0 48px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { gap: 16px; }
  .hero-meta strong { font-size: 16px; }
  .scenario-grid, .feature-grid, .testimonial-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 28px 20px; }
  .cta-qr-stack { flex-direction: row; }
}

/* 滚动显示动画 ----------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal]:nth-child(2) { transition-delay: 0.08s; }
[data-reveal]:nth-child(3) { transition-delay: 0.16s; }
[data-reveal]:nth-child(4) { transition-delay: 0.24s; }
[data-reveal]:nth-child(5) { transition-delay: 0.32s; }
[data-reveal]:nth-child(6) { transition-delay: 0.4s; }