:root {
  --bg: #0c0c10;
  --bg-soft: #15151c;
  --bg-card: #1a1a24;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f3eef2;
  --muted: #a69eaa;
  --brand: #e84a6b;
  --brand-soft: #ff7a95;
  --accent: #ff9a6b;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  --max: 1120px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 480px at 10% -10%, rgba(232, 74, 107, 0.22), transparent 60%),
    radial-gradient(700px 420px at 90% 5%, rgba(255, 154, 107, 0.14), transparent 55%),
    linear-gradient(180deg, #120e14 0%, var(--bg) 40%, #0a0a0e 100%);
  line-height: 1.75;
  min-height: 100vh;
}

a { color: var(--brand-soft); text-decoration: none; }
a:hover { color: #fff; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { line-height: 1.35; margin: 0 0 0.8em; font-weight: 700; }
h1 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; color: var(--muted); }
ul, ol { color: var(--muted); padding-left: 1.2em; }
li { margin-bottom: 0.45em; }

.container { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  backdrop-filter: blur(14px);
  background: rgba(12, 12, 16, 0.82);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
}
.brand span { font-size: 1.05rem; }
.brand small {
  display: block;
  font-size: 0.7rem;
  color: var(--muted);
  font-weight: 500;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a {
  color: var(--muted);
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  font-size: 0.92rem;
}
.nav a:hover,
.nav a.active {
  color: #fff;
  background: rgba(232, 74, 107, 0.18);
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  color: #fff;
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle svg {
  width: 22px;
  height: 22px;
  display: block;
}
.nav-toggle:hover {
  border-color: rgba(232, 74, 107, 0.45);
  background: rgba(232, 74, 107, 0.12);
}

.hero {
  padding: 2.8rem 0 1.5rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2rem;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  color: var(--brand-soft);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.8rem;
}
.hero h1 { margin-bottom: 0.7rem; }
.hero .lead {
  font-size: 1.05rem;
  color: #d7ced4;
  margin-bottom: 1.4rem;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.2rem; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.78rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.08); color: #fff; }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  color: #fff;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.hero-meta strong { color: #fff; }
.hero-visual {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.hero-visual img {
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 560px;
  object-fit: cover;
  object-position: top;
}
.hero-badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  padding: 0.7rem 0.95rem;
  border-radius: 12px;
  font-size: 0.85rem;
}

section { padding: 2.4rem 0; }
.section-head {
  margin-bottom: 1.4rem;
}
.section-head p { max-width: 70ch; }

.category-grid,
.shot-grid,
.feature-grid,
.vlog-grid {
  display: grid;
  gap: 1rem;
}
.category-grid { grid-template-columns: repeat(4, 1fr); }
.shot-grid { grid-template-columns: repeat(3, 1fr); }
.feature-grid { grid-template-columns: repeat(3, 1fr); }
.vlog-grid { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: rgba(232, 74, 107, 0.35);
}
.card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  background: #000;
}
.card-body { padding: 0.9rem 1rem 1.05rem; }
.card-body h3 { margin-bottom: 0.35rem; font-size: 1rem; }
.card-body p { margin: 0; font-size: 0.9rem; }

.feature-item {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent), var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.feature-item h3 { color: #fff; }
.feature-item .num {
  color: var(--brand-soft);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.55rem;
}

.prose {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.5rem 1.4rem;
}
.prose h2, .prose h3 { color: #fff; scroll-margin-top: 5rem; }
.prose p, .prose li { color: #cfc6ce; }
.prose a { text-decoration: underline; text-underline-offset: 3px; }
.toc {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  margin-bottom: 1.5rem;
}
.toc h3 { margin-bottom: 0.55rem; }
.toc ol { margin: 0; }
.toc a { color: #fff; text-decoration: none; }
.toc a:hover { color: var(--brand-soft); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  align-items: start;
}
.media-block {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
}
.media-block img {
  width: 100%;
  aspect-ratio: 9 / 16;
  max-height: 640px;
  object-fit: cover;
  object-position: top;
  margin-inline: auto;
}

.faq details {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin-bottom: 0.7rem;
}
.faq summary {
  cursor: pointer;
  color: #fff;
  font-weight: 600;
}
.faq p { margin: 0.7rem 0 0; }

.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: #09090d;
  padding: 2.2rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 1.4rem;
  margin-bottom: 1.5rem;
}
.footer-grid h4 { color: #fff; margin-bottom: 0.7rem; }
.footer-grid a {
  display: block;
  color: var(--muted);
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}
.footer-grid a:hover { color: #fff; }
.copyright {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

.page-hero {
  padding: 2.2rem 0 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 1.5rem;
}
.page-hero p { max-width: 70ch; }
.legal .prose { padding: 1.6rem; }

.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1rem;
}
.error-page .code {
  font-size: clamp(3.5rem, 10vw, 6rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0 0;
}
.keyword-tags a,
.keyword-tags span {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(232, 74, 107, 0.12);
  border: 1px solid rgba(232, 74, 107, 0.25);
  color: #ffd5de;
  font-size: 0.85rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .two-col,
  .footer-grid { grid-template-columns: 1fr; }
  .category-grid,
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .shot-grid { grid-template-columns: repeat(2, 1fr); }
  .vlog-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual img { max-height: 480px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 0.6rem;
  }
  .nav.open { display: flex; }
  .header-inner { flex-wrap: wrap; }
  .category-grid,
  .feature-grid,
  .shot-grid,
  .vlog-grid { grid-template-columns: 1fr 1fr; }
  .prose { padding: 1.1rem; }
  section { padding: 1.8rem 0; }
}

@media (max-width: 420px) {
  .category-grid,
  .vlog-grid { grid-template-columns: 1fr; }
}