:root {
  --bg: radial-gradient(circle at 12% 14%, #27345f 0%, transparent 30%),
    radial-gradient(circle at 85% 8%, #2b5b4a 0%, transparent 34%),
    radial-gradient(circle at 55% 90%, #3f2d1e 0%, transparent 30%),
    linear-gradient(135deg, #0c1224 0%, #121b33 48%, #121626 100%);
  --surface: rgba(255, 255, 255, 0.055);
  --surface-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.16);
  --text: #f4f7ff;
  --muted: #b6c2df;
  --primary: #f7b733;
  --primary-strong: #f18d09;
  --primary-soft: rgba(247, 183, 51, 0.2);
  --card-shadow: 0 18px 45px rgba(1, 8, 24, 0.45);
  --radius: 18px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 12px;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 34px 20px 88px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  line-height: 1.2;
}

h1,
h2,
h3,
.badge,
.card__tag {
  font-family: "Barlow Condensed", "Noto Sans SC", sans-serif;
  letter-spacing: 0.3px;
}

p {
  margin: 0;
  color: var(--muted);
}

.hero {
  display: grid;
  gap: 26px;
  grid-template-columns: 1.16fr 0.84fr;
  align-items: stretch;
  padding: 42px;
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -80px;
  top: -100px;
  background: radial-gradient(circle, rgba(247, 183, 51, 0.18), transparent 66%);
  pointer-events: none;
}

.hero__copy h1 {
  font-size: clamp(32px, 3.3vw, 44px);
  margin: 12px 0 14px;
}

.lead {
  max-width: 60ch;
  font-size: 16px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.pill-list li {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  color: var(--text);
  font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero__highlight {
  background: linear-gradient(150deg, rgba(247, 183, 51, 0.16), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--card-shadow);
}

.hero__highlight h2 {
  font-size: 24px;
  margin-bottom: 14px;
}

.highlight__list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  color: var(--muted);
  display: grid;
  gap: 9px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffd78a;
  font-size: 14px;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 15px;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease,
    border-color 160ms ease;
  color: var(--text);
  background: var(--surface-strong);
}

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

.btn-light {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

.btn-light:hover {
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 28px rgba(5, 12, 30, 0.38);
}

.btn-inline,
.btn-ghost {
  width: max-content;
  padding: 10px 14px;
  border-radius: 9px;
  font-size: 14px;
}

.btn-inline {
  border: 1px solid rgba(247, 183, 51, 0.48);
  background: linear-gradient(135deg, var(--primary-soft), rgba(255, 255, 255, 0.08));
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
}

.btn-inline:hover {
  background: linear-gradient(135deg, rgba(247, 183, 51, 0.34), rgba(255, 255, 255, 0.1));
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.11);
}

.section {
  margin-top: 48px;
}

.section--compact {
  margin-top: 28px;
}

.section__title {
  margin-bottom: 16px;
}

.section__title h3 {
  font-size: 30px;
}

.card-grid,
.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card,
.feature-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--card-shadow);
}

.card {
  display: grid;
  grid-template-rows: 110px auto auto minmax(48px, 1fr) auto;
  gap: 10px;
  align-content: start;
  height: 100%;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(247, 183, 51, 0.45);
  box-shadow: 0 20px 48px rgba(8, 16, 35, 0.58);
}

.card__logo {
  width: 100%;
  height: 110px;
  object-fit: contain;
  object-position: center;
  margin: 0;
  border-radius: 14px;
  background: #fff;
  padding: 8px;
}

.card__tag {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  margin: 0;
  font-size: 15px;
  line-height: 1.2;
  width: fit-content;
}

.card h4 {
  font-size: 20px;
  margin: 0;
  line-height: 1.35;
  min-height: 2.7em;
  display: flex;
  align-items: flex-start;
}

.card p {
  min-height: 3.2em;
}

.card__actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 0;
  padding-top: 0;
  align-self: end;
}

.card__actions .btn-inline,
.card__actions .btn-ghost {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  line-height: 1;
}

.feature-card h4 {
  font-size: 23px;
  margin-bottom: 8px;
}

.feature-card p {
  color: #c4d0ea;
}

.footer {
  margin-top: 34px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 28px;
  }

  .hero__copy h1 {
    font-size: clamp(30px, 8vw, 40px);
  }

  .section__title h3 {
    font-size: 26px;
  }
}

.scroll-hint {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  cursor: pointer;
  z-index: 1200;
  transition: transform 300ms ease, opacity 300ms ease, visibility 300ms;
}

.scroll-hint.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(12px) scale(0.98);
  visibility: hidden;
  pointer-events: none;
}

.scroll-hint .hint-text {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.scroll-hint .arrow {
  width: 26px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(247, 183, 51, 0.2), rgba(255, 255, 255, 0.05));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
  animation: float 1400ms ease-in-out infinite;
}

.scroll-hint .arrow svg {
  display: block;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
  100% {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-hint .arrow {
    animation: none;
  }

  .card,
  .btn {
    transition: none;
  }
}

@media (min-width: 961px) {
  .scroll-hint {
    display: none !important;
  }
}

@media (max-width: 480px) {
  .page {
    padding: 12px 10px 20px;
  }

  .hero {
    padding: 14px;
    gap: 12px;
    border-radius: 14px;
  }

  .badge {
    font-size: 12px;
    padding: 5px 9px;
  }

  .hero__copy h1 {
    font-size: 34px;
    margin: 8px 0 10px;
  }

  .lead {
    font-size: 13px;
    line-height: 1.45;
  }

  .pill-list {
    margin-top: 10px;
    gap: 6px;
  }

  .pill-list li {
    font-size: 12px;
    padding: 5px 8px;
  }

  .hero__highlight {
    padding: 12px;
    border-radius: 12px;
  }

  .hero__highlight h2 {
    font-size: 20px;
    margin-bottom: 8px;
  }

  .highlight__list {
    gap: 6px;
    margin-bottom: 10px;
    font-size: 12px;
    line-height: 1.35;
  }

  .btn-light {
    min-height: 36px;
    font-size: 13px;
    padding: 8px 12px;
  }

  .section {
    margin-top: 14px;
  }

  .section__title {
    margin-bottom: 8px;
  }

  .section__title h3 {
    font-size: 32px;
  }

  .section__title p {
    font-size: 13px;
    line-height: 1.35;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .card {
    padding: 10px;
    grid-template-rows: 68px auto auto minmax(32px, 1fr) auto;
    gap: 6px;
  }

  .feature-card {
    padding: 10px;
  }

  .card__actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 5px;
  }

  .card__logo {
    width: 100%;
    height: 68px;
    border-radius: 8px;
    padding: 4px;
  }

  .card__tag {
    font-size: 10px;
    padding: 3px 6px;
  }

  .card p {
    font-size: 11px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .card h4 {
    min-height: 2.4em;
    font-size: 13px;
    line-height: 1.3;
  }

  .card__actions .btn-inline,
  .card__actions .btn-ghost {
    min-height: 30px;
    font-size: 11px;
    padding: 6px 4px;
    border-radius: 7px;
  }

  .footer {
    margin-top: 12px;
    font-size: 11px;
    line-height: 1.2;
  }

  .scroll-hint {
    display: none !important;
  }
}