:root {
  --bg: #0b0b12;
  --bg-2: #12121c;
  --bg-3: #1a1a28;
  --text: #f2f2f7;
  --muted: #a8a8b8;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #ff5a4e;
  --accent-2: #ff8a3d;
  --accent-3: #e84d8a;
  --gold: #e8c47a;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --max: 1120px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(232, 77, 138, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(255, 90, 78, 0.14), transparent 50%),
    linear-gradient(180deg, #0d0d16 0%, var(--bg) 40%, #090910 100%);
  color: var(--text);
  line-height: 1.75;
  min-height: 100vh;
}

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

a {
  color: #ffb09f;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #fff;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
  z-index: 1000;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(11, 11, 18, 0.82);
  border-bottom: 1px solid var(--line);
}

.nav {
  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: 1.05rem;
  letter-spacing: 0.02em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(255, 90, 78, 0.28);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--bg-3);
  color: #fff;
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 56px 0 28px;
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 0.88rem;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 0.01em;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
  max-width: 36em;
}

.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;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 10px 28px rgba(255, 90, 78, 0.3);
}

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

.hero-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-visual {
  position: relative;
}

.hero-visual img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--bg-2);
}

.hero-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(10, 10, 16, 0.82);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.86rem;
  color: #fff;
}

/* Sections */
section {
  padding: 48px 0;
}

.section-head {
  margin-bottom: 28px;
  max-width: 46em;
}

.section-head h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  margin-bottom: 10px;
}

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

.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}

.feature-grid,
.shot-grid,
.card-grid,
.faq-list {
  display: grid;
  gap: 18px;
}

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

.feature-card h3,
.card h3 {
  margin: 12px 0 8px;
  font-size: 1.08rem;
}

.feature-card p,
.card p,
.prose p,
.faq-item p {
  color: var(--muted);
}

.feature-card img,
.shot-card img,
.card img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #000;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
}

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

.shot-card figcaption,
.card figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: start;
}

.prose h2,
.prose h3 {
  margin: 1.4em 0 0.6em;
}

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

.prose p,
.prose li {
  margin-bottom: 0.9em;
  color: var(--muted);
}

.prose ul,
.prose ol {
  padding-left: 1.2em;
  margin-bottom: 1em;
}

.prose strong {
  color: #fff;
  font-weight: 600;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: #fff;
  font-weight: 700;
}

.faq-list {
  grid-template-columns: 1fr 1fr;
}

.faq-item {
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.faq-item h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.breadcrumb {
  padding: 18px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.page-hero {
  padding: 28px 0 8px;
}

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

.page-hero p {
  color: var(--muted);
  max-width: 46em;
}

.content-wrap {
  padding: 24px 0 56px;
}

.legal-note {
  margin-top: 24px;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 90, 78, 0.08);
  border-radius: 0 10px 10px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.related {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.related h2 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.related ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

/* Error pages */
.error-page {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 60px 0;
}

.error-page h1 {
  font-size: clamp(2.4rem, 8vw, 4.5rem);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

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

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  padding: 36px 0 28px;
  margin-top: 20px;
}

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

.footer-brand {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.footer-brand img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
}

.footer-brand p,
.site-footer p {
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  list-style: none;
  display: grid;
  gap: 8px;
}

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

.footer-bottom {
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
}

.toc {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 22px;
}

.toc h2 {
  font-size: 1rem;
  margin-bottom: 8px;
}

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

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

.highlight-box {
  background: linear-gradient(135deg, rgba(255, 90, 78, 0.12), rgba(232, 77, 138, 0.08));
  border: 1px solid rgba(255, 90, 78, 0.25);
  border-radius: var(--radius);
  padding: 22px;
  margin: 18px 0;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.stat {
  text-align: center;
  padding: 16px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  color: #fff;
  margin-bottom: 4px;
}

.stat span {
  color: var(--muted);
  font-size: 0.86rem;
}

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

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

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

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

  .nav-links {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 68px;
    flex-direction: column;
    align-items: stretch;
    background: rgba(18, 18, 28, 0.98);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 12px;
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: flex;
  }

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

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

  .hero {
    padding-top: 32px;
  }

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