:root {
  --bg: #0c0c0f;
  --bg-elevated: #15151c;
  --bg-soft: #1c1c26;
  --text: #f4f0ea;
  --text-muted: #a8a29a;
  --accent: #ff4d6d;
  --accent-soft: #ff8a3d;
  --accent-deep: #c41e6a;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --max: 1180px;
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(255, 77, 109, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(255, 138, 61, 0.14), transparent 50%),
    linear-gradient(180deg, #121218 0%, var(--bg) 35%, #09090b 100%);
  line-height: 1.75;
  min-height: 100vh;
}

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

a {
  color: var(--accent-soft);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #ffd0a8;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(12, 12, 15, 0.82);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  padding: 0;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.hero {
  padding: 4.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-soft);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.25;
  margin: 0 0 1rem;
  font-weight: 400;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  color: #1a0b10;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent), var(--accent-deep));
  box-shadow: 0 10px 30px rgba(255, 77, 109, 0.28);
}

.btn-primary:hover {
  color: #1a0b10;
  filter: brightness(1.05);
}

.btn-ghost {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: 22px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  animation: floatIn 0.9s ease both;
}

.hero-glow {
  position: absolute;
  inset: 12% 8% auto;
  height: 55%;
  background: radial-gradient(circle, rgba(255, 77, 109, 0.35), transparent 70%);
  filter: blur(30px);
  z-index: -1;
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes pulseGlow {
  0%,
  100% {
    opacity: 0.55;
    transform: scale(1);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.06);
  }
}

.section {
  padding: 3.5rem 0;
}

.section-head {
  max-width: 46rem;
  margin-bottom: 2rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.75rem;
  font-weight: 400;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

.category-grid,
.feature-grid,
.vlog-grid,
.shot-grid {
  display: grid;
  gap: 1.25rem;
}

.category-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.vlog-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.media-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.media-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 138, 61, 0.35);
}

.media-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
  background: #000;
}

.media-card.wide img {
  aspect-ratio: 16 / 10;
}

.media-card .body {
  padding: 1rem 1.1rem 1.2rem;
}

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

.media-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.feature-item {
  background: linear-gradient(180deg, var(--bg-soft), var(--bg-elevated));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
}

.feature-item h3 {
  margin: 0 0 0.55rem;
  font-size: 1.1rem;
}

.feature-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.prose {
  background: rgba(21, 21, 28, 0.72);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.75rem 1.5rem;
}

.prose h2,
.prose h3 {
  font-family: var(--font-display);
  font-weight: 400;
}

.prose h2 {
  font-size: 1.55rem;
  margin: 2rem 0 0.85rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.65rem;
}

.prose p {
  color: #d6d0c8;
  margin: 0 0 1rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: #d6d0c8;
}

.prose li {
  margin-bottom: 0.45rem;
}

.toc {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem 1rem;
  margin: 1.25rem 0 1.75rem;
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid var(--line);
}

.toc a {
  color: var(--text);
  font-size: 0.95rem;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 0.9rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
}

.faq p {
  margin: 0.7rem 0 0;
  color: var(--text-muted);
}

.page-hero {
  padding: 3rem 0 1.5rem;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 0.75rem;
  font-weight: 400;
}

.page-hero p {
  margin: 0;
  color: var(--text-muted);
  max-width: 42rem;
}

.breadcrumb {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
  background: #09090b;
  padding: 2.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.footer-brand p,
.footer-col p {
  color: var(--text-muted);
  margin: 0.55rem 0 0;
  font-size: 0.92rem;
}

.footer-col h4 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.footer-col a {
  display: block;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 1.1rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: space-between;
}

.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 0;
}

.error-page h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6rem);
  margin: 0;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-page p {
  color: var(--text-muted);
  max-width: 28rem;
  margin: 1rem auto 1.5rem;
}

.internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.chip {
  display: inline-flex;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.88rem;
  background: rgba(255, 255, 255, 0.03);
}

.chip:hover {
  color: var(--text);
  border-color: rgba(255, 138, 61, 0.4);
}

@media (max-width: 980px) {
  .hero-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .category-grid,
  .feature-grid,
  .vlog-grid,
  .shot-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(12, 12, 15, 0.96);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1rem 1rem;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 0.85rem 0.4rem;
    border-bottom: 1px solid var(--line);
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .category-grid,
  .feature-grid,
  .vlog-grid,
  .shot-grid,
  .toc {
    grid-template-columns: 1fr;
  }

  .prose {
    padding: 1.25rem 1rem;
  }

  .section {
    padding: 2.5rem 0;
  }
}