:root {
  --bg: #0b0b0f;
  --bg-soft: #14141c;
  --bg-card: #1a1a24;
  --text: #f2f2f5;
  --muted: #a8a8b8;
  --line: #2a2a38;
  --brand: #e11d48;
  --brand-soft: #fb7185;
  --accent: #f43f5e;
  --ok: #22c55e;
  --max: 1120px;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "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(1200px 500px at 10% -10%, rgba(225, 29, 72, 0.18), transparent 60%),
    radial-gradient(900px 420px at 90% 0%, rgba(244, 63, 94, 0.12), transparent 55%),
    var(--bg);
  line-height: 1.75;
}

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

a:hover {
  color: #fff;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 110;
  backdrop-filter: blur(14px);
  background: rgba(11, 11, 15, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  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;
  letter-spacing: 0.02em;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

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

.nav a {
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.95rem;
}

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

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: #fff;
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  padding: 56px 0 28px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  line-height: 1.25;
  letter-spacing: 0.01em;
}

.hero-copy .lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 22px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand), #be123c);
  color: #fff;
  box-shadow: 0 10px 28px rgba(225, 29, 72, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  color: #fff;
}

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

.btn-ghost:hover {
  border-color: var(--brand-soft);
  color: #fff;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-meta span::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  margin-right: 8px;
  vertical-align: middle;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  object-fit: cover;
  max-height: 560px;
}

.badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(11, 11, 15, 0.82);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
}

section {
  padding: 42px 0;
}

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

.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
}

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

.prose {
  color: #d8d8e2;
}

.prose p {
  margin: 0 0 1em;
}

.prose h3 {
  margin: 1.4em 0 0.55em;
  font-size: 1.2rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
  color: #d8d8e2;
}

.prose li {
  margin: 0.35em 0;
}

.feature-grid,
.shot-grid,
.cat-grid,
.info-grid {
  display: grid;
  gap: 16px;
}

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

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

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

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

.card {
  background: linear-gradient(180deg, rgba(26, 26, 36, 0.95), rgba(20, 20, 28, 0.95));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

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

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

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

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
}

.pill {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(225, 29, 72, 0.12);
  border: 1px solid rgba(225, 29, 72, 0.28);
  color: #fecdd3;
  font-size: 0.9rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
}

.split img {
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  max-height: 640px;
  object-fit: cover;
  object-position: top;
  margin: 0 auto;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 12px;
}

.step {
  position: relative;
  padding: 16px 16px 16px 58px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand);
  font-weight: 700;
  font-size: 0.85rem;
}

.faq details {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
}

.faq p {
  margin: 10px 0 0;
  color: var(--muted);
}

.links-box {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.links-box a {
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--text);
}

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: #09090d;
  padding: 34px 0 28px;
}

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

.site-footer h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

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

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin: 0 0 8px;
}

.copyright {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: #7d7d8d;
  font-size: 0.9rem;
}

.page-hero {
  padding: 40px 0 10px;
}

.page-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

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

.legal {
  padding-bottom: 50px;
}

.breadcrumb {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

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

.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 60px 16px;
}

.error-page h1 {
  margin: 0 0 10px;
  font-size: 3rem;
}

.error-page p {
  color: var(--muted);
  margin: 0 0 22px;
}

.toc {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 0 0 24px;
}

.toc strong {
  display: block;
  margin-bottom: 8px;
}

.toc a {
  display: inline-block;
  margin: 4px 10px 4px 0;
  color: var(--brand-soft);
}

@media (max-width: 960px) {
  .hero-grid,
  .split,
  .footer-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

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

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

  .nav-toggle {
    display: inline-flex;
  }

  .nav-wrap {
    position: relative;
    flex-wrap: nowrap;
  }

  .nav {
    display: none;
  }

  .nav.open {
    display: flex;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    z-index: 120;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px;
    background: rgba(11, 11, 15, 0.96);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }

  .hero {
    padding-top: 28px;
  }
}

@media (max-width: 560px) {
  .feature-grid,
  .shot-grid,
  .cat-grid {
    grid-template-columns: 1fr;
  }

  .card img {
    aspect-ratio: 3 / 4;
  }
}