:root {
  --bg: #1a1210;
  --bg2: #241816;
  --panel: rgba(48, 28, 22, 0.88);
  --panel2: rgba(62, 34, 24, 0.92);
  --text: #fff7ed;
  --muted: #d6b8a4;
  --amber: #f59e0b;
  --orange: #f97316;
  --coral: #fb7185;
  --gold: #fbbf24;
  --line: rgba(251, 191, 36, 0.28);
  --radius: 18px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "Cascadia Mono", "Consolas", "Courier New", monospace;
  --grad: linear-gradient(135deg, #f97316 0%, #f59e0b 45%, #fb7185 100%);
  --grad-soft: linear-gradient(160deg, rgba(249, 115, 22, 0.22), rgba(251, 191, 36, 0.1) 40%, rgba(251, 113, 133, 0.16));
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(ellipse 70% 45% at 10% 0%, rgba(249, 115, 22, 0.28), transparent 50%),
    radial-gradient(ellipse 55% 40% at 90% 10%, rgba(251, 113, 133, 0.2), transparent 48%),
    radial-gradient(ellipse 50% 35% at 50% 100%, rgba(245, 158, 11, 0.12), transparent 50%),
    linear-gradient(180deg, #120c0a 0%, var(--bg) 40%, #1c100e 100%);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button, .btn { font: inherit; cursor: pointer; border: none; }

.container { width: min(1140px, calc(100% - 2rem)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(26, 18, 16, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #1a1210;
  font-weight: 900;
  font-size: 0.82rem;
  background: var(--grad);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.35);
}

.logo-text span {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  transition: 0.18s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: #1a1210;
  background: var(--grad);
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.28);
}

.lang-switch {
  display: inline-flex;
  padding: 0.22rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(36, 22, 18, 0.8);
}

.lang-switch button {
  background: transparent;
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.lang-switch button.active {
  color: #1a1210;
  background: var(--grad);
  font-weight: 700;
}

.hero { padding: 3rem 0 2.2rem; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.8rem;
  align-items: center;
}

.hero-copy {
  padding: 1.6rem;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: var(--grad-soft), rgba(36, 22, 18, 0.75);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tag {
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff7ed;
  background: rgba(249, 115, 22, 0.18);
  border: 1px solid rgba(251, 191, 36, 0.35);
}

.hero h1 {
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  line-height: 1.16;
  letter-spacing: -0.03em;
  margin-bottom: 0.9rem;
}

.hero h1 em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 52ch;
  margin-bottom: 1.35rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.9rem 1.3rem;
  border-radius: 999px;
  font-weight: 800;
  transition: 0.18s ease;
}

.btn-primary {
  color: #1a1210;
  background: var(--grad);
  box-shadow: 0 10px 28px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); }

.btn-secondary {
  color: var(--text);
  background: rgba(48, 28, 22, 0.9);
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-sm { padding: 0.58rem 1rem; font-size: 0.88rem; }

.trust-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.trust-item {
  padding: 0.75rem 0.85rem;
  border-radius: 16px;
  background: rgba(26, 18, 16, 0.55);
  border: 1px solid rgba(251, 191, 36, 0.18);
  font-size: 0.8rem;
  color: var(--muted);
}

.trust-item strong {
  display: block;
  color: var(--text);
  font-size: 1.05rem;
  margin-bottom: 0.12rem;
}

.hero-visual {
  position: relative;
}

.glow-frame {
  border-radius: 28px;
  padding: 0.7rem;
  background: var(--grad);
  box-shadow: 0 24px 60px rgba(249, 115, 22, 0.28);
}

.glow-inner {
  border-radius: 22px;
  overflow: hidden;
  background: #1a1210;
}

.glow-inner img {
  width: 100%;
  aspect-ratio: 16/11;
  object-fit: cover;
}

.float-card {
  position: absolute;
  right: -0.4rem;
  bottom: -0.9rem;
  width: min(240px, 72%);
  border-radius: 18px;
  overflow: hidden;
  border: 2px solid rgba(251, 191, 36, 0.45);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
  animation: floaty 5s ease-in-out infinite;
}

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

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.section { padding: 3.1rem 0; }
.section-warm {
  background: linear-gradient(180deg, rgba(62, 34, 24, 0.35), rgba(26, 18, 16, 0.2));
  border-top: 1px solid rgba(251, 191, 36, 0.12);
  border-bottom: 1px solid rgba(251, 191, 36, 0.12);
}

.section-head { margin-bottom: 1.5rem; max-width: 62ch; }

.eyebrow {
  display: inline-block;
  margin-bottom: 0.55rem;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 800;
  color: #1a1210;
  background: var(--grad);
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
}

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

.platform-grid,
.feature-grid,
.compat-grid,
.reco-grid,
.scene-grid,
.faq-grid,
.step-grid,
.download-grid {
  display: grid;
  gap: 1rem;
}

.platform-grid { grid-template-columns: repeat(5, 1fr); }
.feature-grid,
.scene-grid,
.faq-grid { grid-template-columns: repeat(3, 1fr); }
.compat-grid { grid-template-columns: repeat(4, 1fr); }
.reco-grid,
.download-grid,
.step-grid { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--panel);
  border: 1px solid rgba(251, 191, 36, 0.16);
  border-radius: var(--radius);
  padding: 1.15rem;
  transition: 0.18s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  opacity: 0.85;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(251, 191, 36, 0.4);
  box-shadow: 0 16px 36px rgba(249, 115, 22, 0.18);
}

.card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
}

.card p,
.card li { color: var(--muted); font-size: 0.94rem; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  background: rgba(26, 18, 16, 0.55);
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.status-ok { color: #4ade80; }
.status-warn { color: var(--gold); }

.meta-list {
  display: grid;
  gap: 0.35rem;
  margin: 0.7rem 0 1rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.meta-list strong { color: var(--text); }

.how-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.15rem;
}

.flow-list { display: grid; gap: 0.75rem; }

.flow-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  padding: 0.95rem;
  border-radius: 16px;
  background: rgba(26, 18, 16, 0.55);
  border: 1px solid rgba(251, 191, 36, 0.14);
}

.flow-num {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 900;
  color: #1a1210;
  background: var(--grad);
}

.console {
  border-radius: 18px;
  background: #120c0a;
  border: 1px solid rgba(251, 191, 36, 0.25);
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.console-bar {
  display: flex;
  justify-content: space-between;
  padding: 0.65rem 0.9rem;
  background: #241816;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.console pre {
  padding: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.7;
  color: #fcd34d;
  overflow-x: auto;
}

.console .cmt { color: #78716c; }
.console .k { color: #fdba74; }
.console .v { color: #fda4af; }

.how-shot {
  margin-top: 0.85rem;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.points {
  margin-top: 1.15rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.point {
  padding: 0.95rem;
  border-radius: 16px;
  background: var(--panel2);
  border: 1px solid rgba(251, 191, 36, 0.14);
  color: var(--muted);
  font-size: 0.9rem;
}

.point strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.compat-item h3 { font-size: 0.98rem; }
.compat-item p { font-size: 0.88rem; }

.step-index {
  display: inline-block;
  margin-bottom: 0.45rem;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 900;
  color: #1a1210;
  background: var(--grad);
}

.tips {
  margin-top: 1rem;
  padding: 1.1rem 1.2rem;
  border-radius: 18px;
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid rgba(249, 115, 22, 0.35);
}

.tips h3 {
  color: var(--gold);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.tips ul { display: grid; gap: 0.4rem; }
.tips li {
  color: var(--muted);
  font-size: 0.92rem;
  padding-left: 1rem;
  position: relative;
}

.tips li::before {
  content: "!";
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 900;
}

.scene-card { min-height: 148px; }

.faq-item details {
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid rgba(251, 191, 36, 0.16);
  padding: 1rem 1.1rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--gold);
  font-weight: 900;
}

.faq-item details[open] summary::after { content: "−"; }
.faq-item details p {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.cta { padding: 3rem 0; }

.cta-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 1.9rem 2rem;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: var(--grad-soft), rgba(48, 28, 22, 0.9);
  box-shadow: 0 20px 50px rgba(249, 115, 22, 0.18);
}

.cta-box h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 0.35rem;
}

.cta-box p { color: var(--muted); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; }

.page-hero { padding: 2.3rem 0 1rem; }
.page-hero .hero-copy { padding: 1.4rem 1.55rem; }
.page-hero h1 {
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  margin: 0.35rem 0 0.55rem;
}
.page-hero p { color: var(--muted); max-width: 60ch; }

.breadcrumb {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 700;
}
.breadcrumb a { color: var(--gold); }

.content-block { display: grid; gap: 1rem; }
.content-block .card ol,
.content-block .card ul {
  display: grid;
  gap: 0.45rem;
  padding-left: 1.1rem;
}
.content-block .card ol { list-style: decimal; }
.content-block .card ul { list-style: disc; }
.content-block .card li { color: var(--muted); }

.inline-img {
  margin-top: 0.95rem;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #120c0a;
  padding: 2.4rem 0 1.3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 1.1rem;
  margin-bottom: 1.3rem;
}

.footer-col h4 {
  font-size: 0.92rem;
  margin-bottom: 0.65rem;
  color: var(--gold);
}

.footer-col p,
.footer-col a {
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-col ul { display: grid; gap: 0.4rem; }
.footer-col a:hover { color: var(--orange); }

.footer-bottom {
  border-top: 1px solid rgba(251, 191, 36, 0.12);
  padding-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(3, 1fr); }
  .compat-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid,
  .scene-grid,
  .faq-grid,
  .reco-grid,
  .download-grid,
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid,
  .how-grid { grid-template-columns: 1fr; }
  .points { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav { flex-wrap: wrap; }
  .nav-links { width: 100%; }
  .platform-grid,
  .feature-grid,
  .scene-grid,
  .faq-grid,
  .reco-grid,
  .download-grid,
  .step-grid,
  .compat-grid,
  .footer-grid,
  .trust-row { grid-template-columns: 1fr; }
  .float-card { position: static; width: 100%; margin-top: 0.8rem; }
  .cta-box { padding: 1.35rem; }
}