@charset "utf-8";
:root {
  --accent: #c8000a;
  --accent-2: #d8262c;
  --ink: #111111;
  --muted: rgba(17, 17, 17, 0.64);
  --canvas: #f7f5f0;
  --card: #ffffff;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; width: 100%; min-height: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  color: var(--ink);
  background: var(--canvas);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.page-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 92px;
  padding-top: 55px;
  box-sizing: border-box;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.08);
}
.header-inner {
  width: min(1480px, calc(100% - 32px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-right: 48px;
}
.brand img { width: 132px; height: auto; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  font-size: 16px;
}
.main-nav > a,
.main-nav > .nav-group > a {
  position: relative;
  color: #161616;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}
.main-nav > a::after,
.main-nav > .nav-group > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: #161616;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.3s ease;
}
.main-nav > a:hover::after,
.main-nav > .nav-group:hover > a::after,
.main-nav > a.current::after,
.main-nav > .nav-group > a.current::after {
  transform: scaleX(1);
  transform-origin: left center;
}
.nav-group { position: relative; }
.nav-group > a { padding-right: 18px; }
.nav-group::before {
  content: "";
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 10px;
  z-index: 19;
}
.sub-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 156px;
  padding: 10px 10px 10px;
  border-radius: 0 0 12px 12px;
  background: rgba(200, 0, 10, 0.96);
  box-shadow: 0 10px 30px rgba(200, 0, 10, 0.18);
  display: block;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0s linear 0.22s;
  z-index: 20;
}
.nav-group:hover .sub-menu,
.nav-group:focus-within .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0s;
}
.sub-menu a {
  display: block;
  color: #fff;
  text-align: center;
  line-height: 34px;
  font-size: 14px;
  border-radius: 6px;
}
.sub-menu a:hover { background: rgba(255, 255, 255, 0.16); }
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(200, 0, 10, 0.18);
  background: rgba(200, 0, 10, 0.06);
  color: var(--accent);
}

.detail-page { padding-top: 92px; }
.detail-banner {
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(ellipse at 20% 20%, rgba(180, 90, 50, 0.2) 0%, transparent 45%),
              radial-gradient(ellipse at 80% 80%, rgba(160, 60, 20, 0.15) 0%, transparent 50%),
              linear-gradient(160deg, #2c1f18 0%, #33241c 30%, #261912 60%, #1a100c 100%);
}
.detail-breadcrumb {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 30px;
  position: relative;
  z-index: 2;
}
.detail-breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
  transition: opacity 0.3s;
}
.detail-breadcrumb a:hover { opacity: 0.7; }
.detail-breadcrumb span {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 700;
}
.detail-banner-title {
  margin: 0;
  font-size: 42px;
  font-weight: 700;
  color: #fff;
  position: relative;
  z-index: 2;
  letter-spacing: 4px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.detail-section {
  padding: 80px 0;
  background: #FAF6F2;
}
.detail-inner {
  width: min(1200px, calc(100% - 36px));
  margin: 0 auto;
}
.detail-images {
  display: flex;
  gap: 30px;
  margin-bottom: 60px;
}
.detail-img {
  flex: 1;
  height: 580px;
  background-size: cover;
  background-position: center;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.detail-info {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.detail-info h2 {
  margin: 0 0 20px;
  font-size: 32px;
  color: #1a0c0a;
  font-weight: 700;
}
.detail-tag {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 14px;
  margin-bottom: 25px;
}
.detail-desc {
  font-size: 16px;
  color: #666;
  line-height: 2.2;
  margin: 0 0 40px;
  white-space: pre-line;
  text-align: left;
}
.detail-features {
  display: flex;
  gap: 30px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.feature-item {
  flex: 0 0 200px;
  text-align: center;
  padding: 30px 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 28px rgba(200, 0, 10, 0.12);
}
.feature-icon {
  font-size: 36px;
  margin-bottom: 12px;
}
.feature-item h4 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #333;
}
.feature-item p {
  margin: 0;
  font-size: 13px;
  color: #999;
  line-height: 1.6;
}
.detail-back {
  display: inline-block;
  padding: 14px 40px;
  background: var(--accent);
  color: #fff;
  border-radius: 30px;
  font-size: 16px;
  transition: all 0.3s ease;
}
.detail-back:hover {
  background: var(--accent-2);
  transform: translateY(-2px);
}

.site-footer {
  margin-top: 58px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  padding: 26px min(28px, 2vw) 0;
  width: min(1400px, calc(100% - 32px));
  margin-left: auto;
  margin-right: auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}
.contact-lines {
  margin: 0;
  padding: 0;
  list-style: none;
  color: #555;
  line-height: 2;
  font-size: 14px;
}
.qr-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 20px;
}
.qr-list li {
  width: 96px;
  text-align: center;
  color: #666;
  font-size: 13px;
}
.qr-list img {
  width: 100%;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 8px;
}
.copy {
  width: min(1400px, calc(100% - 32px));
  margin: 26px auto 0;
  color: #777;
  font-size: 13px;
  padding-bottom: 26px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .site-footer { grid-template-columns: 1fr; }
}

@media (max-width: 980px) {
  .page-header { height: 72px; }
  .detail-page { padding-top: 72px; }
  .header-inner { width: min(1480px, calc(100% - 24px)); }
  .brand img { width: 110px; }
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    right: 16px;
    width: 240px;
    max-height: calc(100vh - 88px);
    overflow-y: auto;
    gap: 0;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.14);
  }
  .main-nav.open > a,
  .main-nav.open > .nav-group > a {
    width: 100%;
    padding: 8px 0;
  }
  .main-nav.open .nav-group { width: 100%; }
  .main-nav.open .sub-menu {
    position: static;
    transform: none;
    display: block;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    margin: 6px 0 10px;
    background: rgba(200, 0, 10, 0.88);
    box-shadow: none;
  }
  .mobile-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .detail-banner { min-height: 200px; }
  .detail-banner-title { font-size: 28px; letter-spacing: 2px; }
  .detail-section { padding: 40px 0; }
  .detail-inner { width: min(1200px, calc(100% - 24px)); }
  .detail-images { flex-direction: column; gap: 15px; }
  .detail-img { height: 340px; }
  .detail-info h2 { font-size: 24px; }
  .feature-item { flex: 0 0 140px; padding: 20px 15px; }
  .site-footer { width: min(1400px, calc(100% - 24px)); }
  .copy { width: min(1400px, calc(100% - 24px)); }
}