:root {
  --bg: #0b0b0f;
  --bg-soft: #14141c;
  --bg-card: #1a1a24;
  --line: #2a2a38;
  --text: #f2f2f5;
  --muted: #a8a8b8;
  --accent: #e11d48;
  --accent-soft: #fb7185;
  --gold: #f5c542;
  --max: 1120px;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(225, 29, 72, 0.18), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(245, 197, 66, 0.08), transparent 45%),
    var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
}

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

a {
  color: var(--accent-soft);
  text-decoration: none;
}

a:hover {
  color: #fff;
  text-decoration: underline;
}

.container {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 15, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.brand span {
  background: linear-gradient(90deg, #fff, var(--accent-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active {
  color: #fff;
  background: rgba(225, 29, 72, 0.18);
}

.menu-toggle {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--line);
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  cursor: pointer;
}

.hero {
  padding: 48px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  color: var(--gold);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  line-height: 1.3;
  margin-bottom: 14px;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #be123c);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.08);
  color: #fff;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent-soft);
  color: #fff;
  text-decoration: none;
}

.hero-visual {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--bg-card);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.section {
  padding: 42px 0;
}

.section-head {
  margin-bottom: 22px;
}

.section-head h2 {
  font-size: 1.55rem;
  margin-bottom: 8px;
}

.section-head p {
  color: var(--muted);
  max-width: 760px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.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(225, 29, 72, 0.45);
}

.card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #000;
}

.card-body {
  padding: 14px 16px 18px;
}

.card-body h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.card-body p {
  color: var(--muted);
  font-size: 0.95rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.tag {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.tag:hover {
  color: #fff;
  border-color: var(--accent);
  text-decoration: none;
}

.content-block {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 24px;
  margin-bottom: 18px;
}

.content-block h2,
.content-block h3 {
  margin: 18px 0 10px;
}

.content-block h2:first-child,
.content-block h3:first-child {
  margin-top: 0;
}

.content-block p,
.content-block li {
  color: #d4d4de;
  margin-bottom: 12px;
}

.content-block ul,
.content-block ol {
  padding-left: 1.2em;
  margin-bottom: 12px;
}

.content-block li {
  margin-bottom: 8px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.feature-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

.feature-item h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

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

.shot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.shot {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
}

.shot img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.shot figcaption {
  padding: 8px 10px;
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--bg-card);
}

.toc {
  background: linear-gradient(180deg, rgba(225, 29, 72, 0.12), rgba(26, 26, 36, 0.9));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 20px;
}

.toc h2 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.toc ol {
  padding-left: 1.2em;
  color: var(--muted);
}

.toc a {
  color: var(--accent-soft);
}

.breadcrumb {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

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

.page-hero {
  padding: 36px 0 10px;
}

.page-hero h1 {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  margin-bottom: 10px;
}

.page-hero p {
  color: var(--muted);
  max-width: 780px;
}

.legal {
  padding-bottom: 50px;
}

.site-footer {
  margin-top: 30px;
  border-top: 1px solid var(--line);
  background: #09090d;
  padding: 34px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
  margin-bottom: 22px;
}

.site-footer h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.site-footer p,
.site-footer a {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 8px;
}

.copyright {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  color: #777786;
  font-size: 0.88rem;
  text-align: center;
}

.error-wrap {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 40px 0;
}

.error-wrap h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-bottom: 10px;
}

.error-wrap p {
  color: var(--muted);
  margin-bottom: 18px;
}

.age-note {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px dashed rgba(245, 197, 66, 0.45);
  color: #e8d39a;
  background: rgba(245, 197, 66, 0.08);
  font-size: 0.92rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .two-col,
  .footer-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 720px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 68px;
    flex-direction: column;
    align-items: stretch;
    background: #12121a;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 8px;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 12px 14px;
  }

  .hero {
    padding-top: 28px;
  }

  .card-grid,
  .shot-grid {
    grid-template-columns: 1fr;
  }

  .content-block {
    padding: 20px 16px;
  }

  .hero-visual img {
    aspect-ratio: 16 / 11;
  }
}