/* Followshell product page */
:root {
  --bg: #06110c;
  --panel: #0d1a14;
  --text: #ecfdf5;
  --muted: #9cb8ab;
  --line: rgba(52, 211, 153, 0.16);
  --accent: #34d399;
  --accent-2: #6ee7b7;
  --glow: rgba(52, 211, 153, 0.28);
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(52, 211, 153, 0.2), transparent 55%),
    radial-gradient(700px 400px at 95% 10%, rgba(16, 185, 129, 0.14), transparent 50%),
    var(--bg);
  line-height: 1.65;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(6, 17, 12, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(145deg, #6ee7b7, #059669);
  box-shadow: 0 8px 22px var(--glow);
}

.nav-links {
  display: flex;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
  flex-wrap: wrap;
}

.nav-links a:hover {
  color: var(--text);
}

.hero {
  padding: 3.5rem 0 2rem;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 2rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: rgba(52, 211, 153, 0.14);
  border: 1px solid rgba(110, 231, 183, 0.35);
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2rem, 4.8vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 1.35rem;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 42ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  border-radius: 12px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

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

.btn-primary {
  background: linear-gradient(135deg, #6ee7b7, #10b981);
  color: #042f1a;
  box-shadow: 0 12px 30px var(--glow);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
}

.hero-visual {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #08140f;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
}

.hero-visual img {
  width: 100%;
  object-fit: cover;
  object-position: top center;
  max-height: 420px;
}

.section {
  padding: 2.5rem 0;
}

.section h2 {
  margin: 0 0 0.5rem;
  font-size: 1.7rem;
  letter-spacing: -0.02em;
}

.section > .desc {
  margin: 0 0 1.4rem;
  color: var(--muted);
  max-width: 56ch;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  padding: 1.25rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
}

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.showcase {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
}

.shot {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #08140f;
}

.shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  min-height: 180px;
  max-height: 320px;
}

.shot-stack {
  display: grid;
  gap: 1rem;
}

.shot-stack .shot img {
  max-height: 150px;
}

.download-panel,
.contact-panel {
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(13, 26, 20, 0.9);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.download-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.25rem;
}

.download-meta {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.download-meta strong {
  color: var(--accent-2);
}

.note {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

code {
  font-family: ui-monospace, Consolas, monospace;
  background: rgba(0, 0, 0, 0.25);
  padding: 0.1rem 0.35rem;
  border-radius: 6px;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 1.5rem;
  align-items: center;
}

.contact-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.contact-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 1.4rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 2rem;
}

.footer .inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero,
  .showcase,
  .download-panel,
  .contact-panel,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    justify-items: start;
  }

  .contact-card {
    width: min(280px, 100%);
  }
}