:root {
  --p4-night: #1a1008;
  --p4-dark: #241609;
  --p4-main: #ea580c;
  --p4-deep: #c2410c;
  --p4-amber: #f59e0b;
  --p4-cream: #fff7ed;
  --p4-bg: #fdf6ee;
  --p4-bg2: #f7e9d9;
  --p4-card: #ffffff;
  --p4-text: #2b1a0c;
  --p4-muted: #8a6c52;
  --p4-line: #ecdcc9;
  --p4-r: 8px;
  --p4-r-lg: 14px;
  --p4-shadow: 0 12px 30px -18px rgba(80, 40, 8, .35);
  --p4-shadow-lg: 0 24px 48px -22px rgba(80, 40, 8, .42);
  --p4-width: 1180px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--p4-bg); color: var(--p4-text); line-height: 1.7;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
.p4-box { width: min(var(--p4-width), 92%); margin-inline: auto; }
.p4-sec { padding: 84px 0; }
.p4-title { max-width: 700px; margin-bottom: 46px; }
.p4-title h2 { font-size: clamp(1.5rem, 2.7vw, 2.1rem); font-weight: 800; line-height: 1.3; margin-bottom: 12px; }
.p4-title h2 b { color: var(--p4-main); }
.p4-title p { color: var(--p4-muted); font-size: .98rem; }

.p4-btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; border-radius: 8px; font-size: .96rem; font-weight: 700; white-space: nowrap; transition: transform .22s, box-shadow .22s, background .22s; }
.p4-btn-fire { background: linear-gradient(120deg, var(--p4-main), var(--p4-amber)); color: #fff; box-shadow: 0 14px 28px -10px rgba(234, 88, 12, .6); }
.p4-btn-fire:hover { transform: translateY(-2px); box-shadow: 0 20px 34px -10px rgba(234, 88, 12, .7); }
.p4-btn-clear { background: rgba(255, 255, 255, .12); color: #fff; border: 1.5px solid rgba(255, 255, 255, .55); backdrop-filter: blur(6px); }
.p4-btn-clear:hover { background: rgba(255, 255, 255, .24); transform: translateY(-2px); }
.p4-btn-plain { background: #fff; color: var(--p4-main); border: 1.5px solid var(--p4-main); }
.p4-btn-plain:hover { background: var(--p4-bg2); transform: translateY(-2px); }

.p4-nav { position: fixed; inset: 0 0 auto 0; z-index: 100; background: rgba(26, 16, 8, .72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(245, 158, 11, .2); transition: background .3s; }
.p4-nav.p4-solid { background: rgba(26, 16, 8, .96); box-shadow: 0 8px 24px -14px rgba(0, 0, 0, .6); }
.p4-nav-in { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.p4-logo { font-size: 1.44rem; font-weight: 800; color: var(--p4-amber); letter-spacing: 1px; white-space: nowrap; }
.p4-links { display: flex; gap: 27px; }
.p4-links a { color: rgba(255, 240, 220, .8); font-size: .92rem; font-weight: 600; transition: color .22s; }
.p4-links a:hover { color: var(--p4-amber); }
.p4-burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.p4-burger span { display: block; width: 24px; height: 2px; background: var(--p4-amber); border-radius: 2px; transition: transform .3s, opacity .3s; }
.p4-burger.p4-on span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.p4-burger.p4-on span:nth-child(2) { opacity: 0; }
.p4-burger.p4-on span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.p4-hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 120px 0 90px; overflow: hidden; }
.p4-hero-bg { position: absolute; inset: 0; }
.p4-hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.p4-hero-mask { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(26, 16, 8, .92) 0%, rgba(60, 30, 8, .72) 48%, rgba(194, 65, 12, .45) 100%); }
.p4-hero-in { position: relative; z-index: 2; max-width: 640px; }
.p4-hero-label { display: inline-block; padding: 6px 16px; border-radius: 999px; background: rgba(245, 158, 11, .18); border: 1px solid rgba(245, 158, 11, .4); color: #fcd34d; font-size: .82rem; font-weight: 700; margin-bottom: 22px; }
.p4-hero-in h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 800; line-height: 1.18; color: #fff; margin-bottom: 18px; }
.p4-hero-in h1 span { color: var(--p4-amber); }
.p4-hero-in > p { color: rgba(255, 240, 220, .82); font-size: 1.05rem; margin-bottom: 32px; }
.p4-hero-btns { display: flex; flex-wrap: wrap; gap: 14px; }

.p4-stat { background: linear-gradient(110deg, var(--p4-deep), var(--p4-main) 55%, var(--p4-amber)); padding: 50px 0; }
.p4-stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.p4-stat-item { text-align: center; color: #fff; }
.p4-stat-num { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; line-height: 1.2; margin-bottom: 6px; }
.p4-stat-label { font-size: .88rem; color: rgba(255, 255, 255, .82); }

.p4-live { background: var(--p4-bg); }
.p4-room-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.p4-room { background: var(--p4-card); border: 1px solid var(--p4-line); border-radius: var(--p4-r-lg); overflow: hidden; box-shadow: var(--p4-shadow); transition: transform .24s, box-shadow .24s; }
.p4-room:hover { transform: translateY(-5px); box-shadow: var(--p4-shadow-lg); }
.p4-room-cover { position: relative; }
.p4-room-cover img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.p4-live-dot { position: absolute; top: 13px; left: 13px; padding: 4px 12px; border-radius: 6px; background: var(--p4-main); color: #fff; font-size: .73rem; font-weight: 700; }
.p4-room-info { padding: 22px 24px 24px; }
.p4-room-info h3 { font-size: 1.12rem; font-weight: 800; margin-bottom: 8px; }
.p4-room-info p { color: var(--p4-muted); font-size: .9rem; margin-bottom: 14px; }
.p4-room-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.p4-tag { padding: 3px 11px; border-radius: 6px; font-size: .72rem; font-weight: 700; background: var(--p4-bg2); color: var(--p4-deep); }
.p4-online { margin-left: auto; font-size: .8rem; font-weight: 700; color: var(--p4-main); }

.p4-play { background: var(--p4-bg2); }
.p4-play-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.p4-play-card { background: var(--p4-card); border-radius: var(--p4-r-lg); padding: 28px 26px; box-shadow: var(--p4-shadow); border-left: 5px solid var(--p4-main); transition: transform .22s; }
.p4-play-card:hover { transform: translateX(6px); }
.p4-play-card h3 { font-size: 1.08rem; font-weight: 800; margin-bottom: 8px; }
.p4-play-card p { color: var(--p4-muted); font-size: .9rem; }

.p4-moment { background: var(--p4-bg); }
.p4-moment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.p4-shot { border-radius: var(--p4-r-lg); overflow: hidden; position: relative; box-shadow: var(--p4-shadow); }
.p4-shot img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.p4-shot-cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 16px 13px; color: #fff; font-weight: 700; font-size: .9rem; background: linear-gradient(transparent, rgba(26, 16, 8, .85)); }

.p4-review { background: var(--p4-bg2); }
.p4-review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.p4-review-card { background: var(--p4-card); border-radius: var(--p4-r-lg); padding: 28px 25px; box-shadow: var(--p4-shadow); }
.p4-review-stars { color: var(--p4-amber); letter-spacing: 2px; font-size: .9rem; margin-bottom: 12px; }
.p4-review-text { font-size: .91rem; margin-bottom: 18px; }
.p4-review-user { display: flex; align-items: center; gap: 11px; }
.p4-review-avatar { width: 40px; height: 40px; border-radius: 8px; background: var(--p4-bg2); color: var(--p4-main); display: grid; place-items: center; font-weight: 800; }
.p4-review-user .nm { font-weight: 700; font-size: .9rem; }
.p4-review-user .rl { color: var(--p4-muted); font-size: .78rem; }

.p4-faq { background: var(--p4-bg); }
.p4-faq-list { max-width: 840px; margin-inline: auto; display: grid; gap: 13px; }
.p4-faq-item { background: var(--p4-card); border: 1px solid var(--p4-line); border-radius: var(--p4-r-lg); overflow: hidden; }
.p4-faq-item summary { padding: 20px 25px; font-weight: 700; font-size: .96rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 14px; }
.p4-faq-item summary::-webkit-details-marker { display: none; }
.p4-faq-item summary::after { content: "+"; color: var(--p4-main); font-size: 1.3rem; }
.p4-faq-item[open] summary { color: var(--p4-main); }
.p4-faq-item[open] summary::after { content: "−"; }
.p4-faq-body { padding: 0 25px 21px; color: var(--p4-muted); font-size: .92rem; }

.p4-foot { background: var(--p4-night); color: rgba(255, 240, 220, .68); padding: 60px 0 30px; }
.p4-foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 42px; margin-bottom: 36px; }
.p4-foot-brand .p4-logo { display: inline-block; margin-bottom: 14px; }
.p4-foot-brand p { font-size: .89rem; color: rgba(255, 240, 220, .52); max-width: 370px; }
.p4-foot-col h4 { color: #fff; font-size: .96rem; margin-bottom: 16px; }
.p4-foot-col a, .p4-foot-col li { display: block; color: rgba(255, 240, 220, .52); font-size: .87rem; margin-bottom: 11px; }
.p4-foot-col a:hover { color: var(--p4-amber); }
.p4-foot-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; text-align: center; font-size: .8rem; color: rgba(255, 255, 255, .36); }

.p4-up { position: fixed; right: 24px; bottom: 26px; z-index: 95; width: 46px; height: 46px; border-radius: 8px; background: var(--p4-main); color: #fff; display: grid; place-items: center; font-size: 1.15rem; font-weight: 800; box-shadow: 0 10px 24px -8px rgba(234, 88, 12, .55); opacity: 0; visibility: hidden; transform: translateY(14px); transition: .3s; }
.p4-up.p4-show { opacity: 1; visibility: visible; transform: translateY(0); }

.p4-fade { opacity: 0; transform: translateY(26px); transition: opacity .65s ease, transform .65s ease; }
.p4-fade.p4-in { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
  .p4-room-grid { grid-template-columns: 1fr; }
  .p4-play-grid, .p4-moment-grid { grid-template-columns: 1fr 1fr; }
  .p4-review-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .p4-links { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; background: rgba(26, 16, 8, .97); padding: 24px 6%; gap: 20px; }
  .p4-links.p4-open { display: flex; }
  .p4-burger { display: flex; }
  .p4-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .p4-foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .p4-sec { padding: 64px 0; }
  .p4-hero { min-height: auto; }
  .p4-play-grid, .p4-moment-grid { grid-template-columns: 1fr; }
  .p4-foot-grid { grid-template-columns: 1fr; text-align: center; }
}
@media (max-width: 520px) {
  .p4-stat-grid { grid-template-columns: 1fr; }
  .p4-hero-btns .p4-btn { flex: 1 1 100%; }
}
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--p4-amber); outline-offset: 2px; border-radius: 4px; }

@media (min-width: 901px) {
  .p4-nav-in { position: relative; }
  .p4-links { position: absolute; left: 50%; transform: translateX(-50%); }
  .p4-logo { margin-left: auto; }
}