:root {
  --bg-main: #0a1025;
  --bg-card: #131d3f;
  --bg-card-soft: #1a2852;
  --line: rgba(255, 255, 255, 0.12);
  --text-main: #f5f8ff;
  --text-soft: #bac7e8;
  --accent: #ffd45f;
  --accent-2: #53d8fb;
  --good: #63efb3;
  --danger: #ff8f8f;
  --radius: 18px;
  --shadow: 0 18px 55px rgba(2, 8, 34, 0.45);
}

body {
  margin: 0;
  background: radial-gradient(
    circle at 20% 10%,
    #1f3168 0%,
    var(--bg-main) 35%,
    #060a17 100%
  );
  color: var(--text-main);
  font-family: "Segoe UI", Tahoma, sans-serif;
}

.page-wrap {
  max-width: 1140px;
  margin: 0 auto;
  padding: 36px 16px 0;
}

.download-btn-custom {
  border: none;
  border-radius: 999px;
  padding: 14px 28px;
  background: linear-gradient(120deg, #ffd66f, #ffb74b);
  color: #2f1e00;
  font-weight: 800;
  letter-spacing: 0.2px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  box-shadow: 0 10px 30px rgba(255, 200, 87, 0.35);
}

.download-btn-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(255, 200, 87, 0.5);
}

.hero-card {
  background: linear-gradient(
    130deg,
    rgba(30, 48, 98, 0.92),
    rgba(13, 21, 44, 0.95)
  );
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 28px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 20px;
  padding: 24px;
  align-items: start;
}

.app-main {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.app-icon {
  width: 86px;
  height: 86px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.32);
  flex-shrink: 0;
}

.hero-title {
  margin: 2px 0 6px;
  font-size: 2rem;
  line-height: 1.1;
  letter-spacing: 0.3px;
}

.mini-text {
  margin: 0 0 10px;
  color: var(--text-soft);
  line-height: 1.55;
  font-size: 0.97rem;
}

.rate-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  color: #ffe289;
  font-weight: 700;
}

.meta-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.pill {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 7px 13px;
  background: rgba(255, 255, 255, 0.05);
  color: #eaf0ff;
  font-size: 0.85rem;
}

.tag-panel {
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.28);
  padding: 10px;
  margin-top: 14px;
}

.tag-title {
  margin: 0 0 8px;
  color: #f8f9ff;
  font-size: 0.88rem;
  font-weight: 700;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(92, 216, 252, 0.12);
  color: #9ce8ff;
  border: 1px solid rgba(92, 216, 252, 0.4);
  font-size: 0.81rem;
}

/* 16:9 轮播：高度由比例决定，避免 min-height 与 img 高度不一致时出现底部“黑条”（实为底色露空） */
.carousel-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #0f172f;
}

.slides {
  position: absolute;
  inset: 0;
  display: flex;
  width: 400%;
  height: 100%;
  transition: transform 0.45s ease;
}

.slide {
  flex: 0 0 25%;
  height: 100%;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.dots {
  position: absolute;
  left: 50%;
  bottom: 11px;
  z-index: 2;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
}

.dot.active {
  background: var(--accent);
  border-color: var(--accent);
}

.section-card {
  background: rgba(9, 14, 33, 0.8);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  padding: 22px;
}

.section-title {
  margin: 0 0 12px;
  font-size: 1.4rem;
  letter-spacing: 0.2px;
}

.section-subtitle {
  margin: 0 0 14px;
  color: var(--text-soft);
  line-height: 1.65;
  font-size: 0.97rem;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
}

.info-table td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 10px;
  font-size: 0.95rem;
}

.info-table tr:last-child td {
  border-bottom: none;
}

.info-table td:first-child {
  width: 170px;
  color: var(--text-soft);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.feature-card {
  background: linear-gradient(145deg, var(--bg-card), var(--bg-card-soft));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.5;
  font-size: 0.9rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.step {
  background: linear-gradient(
    155deg,
    rgba(27, 42, 84, 0.9),
    rgba(15, 22, 44, 0.92)
  );
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  padding: 12px;
  position: relative;
}

.step-no {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #2d2102;
  font-weight: 800;
  margin-bottom: 10px;
}

.step h4 {
  margin: 0 0 6px;
  font-size: 0.98rem;
}

.step p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.86rem;
  line-height: 1.45;
}

.reviews {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.review {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 14px;
}

.review h4 {
  margin: 0 0 7px;
  font-size: 0.95rem;
}

.review .meta {
  color: #98addd;
  font-size: 0.82rem;
  margin-bottom: 7px;
}

.review p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.5;
  font-size: 0.88rem;
}

.faq-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 0;
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: #fcf1c0;
}

.faq-item p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.58;
  font-size: 0.91rem;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.related-card {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  padding: 12px;
  text-decoration: none;
  color: var(--text-main);
  transition:
    border-color 0.2s ease,
    transform 0.2s ease;
  display: block;
}

.related-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 220, 125, 0.7);
}

.related-card .small {
  display: block;
  margin-top: 4px;
  color: #a8b8df;
  font-size: 0.82rem;
}

.cta-bottom {
  text-align: center;
  padding: 24px 18px 28px;
  background: linear-gradient(
    120deg,
    rgba(255, 214, 104, 0.15),
    rgba(83, 216, 251, 0.1)
  );
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
}

.cta-bottom h2 {
  margin: 0 0 9px;
  font-size: 1.5rem;
}

.cta-bottom p {
  margin: 0 0 14px;
  color: #d2dcf8;
}

.long-copy p {
  margin: 0 0 12px;
  color: var(--text-soft);
  line-height: 1.72;
  font-size: 0.95rem;
}

.long-copy p:last-child {
  margin-bottom: 0;
}

.bullet-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.bullet-card {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.035);
  padding: 12px;
}

.bullet-card h3 {
  margin: 0 0 7px;
  font-size: 0.98rem;
  color: #f4e1a5;
}

.bullet-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.58;
  font-size: 0.89rem;
}

.key-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text-soft);
  line-height: 1.7;
  font-size: 0.94rem;
}

.key-list li {
  margin-bottom: 8px;
}

@media (max-width: 990px) {
  .hero-inner,
  .grid-3,
  .steps,
  .reviews,
  .related-list,
  .bullet-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .hero-inner,
  .grid-3,
  .steps,
  .reviews,
  .related-list,
  .bullet-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 1.65rem;
  }
}