:root {
  --bg: #f5f3ee;
  --surface: #fffdf8;
  --text: #1f1b16;
  --muted: #5a5248;
  --line: #d9d2c7;
  --accent: #17130f;
  --accent-2: #2f2922;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: radial-gradient(circle at 20% 20%, #fbf8f2, var(--bg) 60%);
  color: var(--text);
  font-family: "Noto Serif SC", "Songti SC", "STSong", "Hiragino Serif GB", serif;
}

a {
  color: inherit;
}

.landing-page {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.landing-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 88%, white);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 1 1 auto;
  min-width: 0;
  gap: 10px;
  text-decoration: none;
  font-size: 24px;
  font-weight: 700;
}

.brand span {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand img {
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-download-btn {
  justify-self: end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  padding: 9px 18px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.btn-link {
  padding: 9px 12px;
  color: var(--muted);
}

.landing-main {
  min-height: 0;
  display: grid;
  width: min(100%, 900px);
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  grid-template-areas: "left right";
  gap: 28px;
  margin-inline: auto;
  padding: 22px 28px;
}

.left-panel {
  grid-area: left;
  min-height: 0;
  max-height: calc(100vh - 185px);
  overflow: auto;
  padding-right: 10px;
}

.left-panel h1 {
  margin: 0;
  font-size: clamp(28px, 2.7vw, 40px);
  line-height: 1.2;
}

.subtitle {
  margin: 10px 0 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.45;
}

.cta-main {
  margin-bottom: 14px;
}

.copy-block {
  margin-bottom: 12px;
}

.copy-block h2 {
  margin: 0 0 4px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.copy-block p {
  margin: 0 0 4px;
  font-size: 14px;
  line-height: 1.52;
}

.vip-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.56;
  font-size: 14px;
}

.right-panel {
  grid-area: right;
  display: flex;
  min-height: 0;
}

.slider {
  width: 100%;
  height: min(100%, 680px);
  min-height: 460px;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #111;
}

.slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.slide.is-active {
  opacity: 1;
}

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

.slide figcaption {
  position: absolute;
  left: 12px;
  bottom: 56px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 13px;
}

.slider-controls {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.slider-btn {
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.84);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.slider-dots {
  display: inline-flex;
  gap: 6px;
}

.dot {
  width: 9px;
  height: 9px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.52);
  cursor: pointer;
  padding: 0;
}

.dot.is-active {
  background: #fff;
}

.landing-footer {
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 28px;
  gap: 12px;
  font-size: 14px;
  background: color-mix(in srgb, var(--surface) 86%, white);
}

.landing-footer .icp a {
  text-decoration: none;
  color: var(--muted);
}

.landing-footer .footer-links {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
  color: var(--muted);
}

.landing-footer .footer-links a {
  text-decoration: none;
}

.landing-footer .footer-links a:hover {
  text-decoration: underline;
}

.page-body {
  margin: 0;
}

.page-main {
  width: min(100%, 880px);
  margin-inline: auto;
  padding: 28px 20px 40px;
}

.legal-page {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 96%, white);
  border-radius: 16px;
  padding: 24px 22px;
  line-height: 1.68;
}

.legal-header h1 {
  margin: 0 0 8px;
  font-size: clamp(24px, 2.6vw, 34px);
}

.legal-meta {
  margin: 0 0 14px;
  color: var(--muted);
}

.legal-header p {
  margin: 0 0 8px;
}

.legal-section {
  margin-top: 18px;
}

.legal-section h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.legal-section p {
  margin: 0 0 8px;
}

.legal-section ul {
  margin: 0;
  padding-left: 20px;
}

.legal-section li {
  margin-bottom: 8px;
}

.legal-section a {
  color: var(--accent-2);
}

.legal-back-home {
  margin-top: 28px;
}

.legal-back-home a {
  display: block;
  width: 100%;
  padding: 14px;
  text-align: center;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  box-sizing: border-box;
}

@media (max-width: 1120px) {
  .landing-main {
    grid-template-columns: 1fr;
    grid-template-areas:
      "right"
      "left";
    gap: 16px;
    padding: 18px;
  }

  .left-panel {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .slider {
    min-height: 360px;
  }

  .landing-footer {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: center;
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
    gap: 8px;
  }

  .landing-footer .icp,
  .landing-footer .footer-links {
    width: auto;
    margin: 0;
    text-align: center;
  }

  .landing-footer .footer-links {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .landing-header {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 12px 14px;
    gap: 8px;
  }

  .brand {
    font-size: 20px;
  }

  .header-download-btn {
    padding: 8px 16px;
    font-size: 16px;
  }

  .landing-main {
    padding: 12px 14px;
  }

  .slider {
    min-height: 280px;
  }

  .landing-footer {
    padding: 10px 14px;
  }

  .page-main {
    padding: 14px;
  }

  .legal-page {
    border-radius: 12px;
    padding: 16px 14px;
  }
}

@media (max-width: 480px) {
  .landing-footer .footer-links {
    text-align: center;
    margin: 0;
  }

  .landing-footer .footer-links {
    gap: 12px;
  }
}