:root {
  --sky: #4aa3e0;
  --sky-d: #2d7ab8;
  --sky-l: #d7eefb;
  --warm: #fff8ef;
  --ink: #1c2b3a;
  --muted: #5b6b7a;
  --paper: #f6fafd;
  --glass: rgba(255, 255, 255, 0.72);
  --line: rgba(74, 163, 224, 0.22);
  --mark: rgba(255, 214, 102, 0.55);
  --max: 1100px;
  --foot-min: 1180px;
  --r: 10px;
  --shadow: 0 8px 24px rgba(28, 43, 58, 0.06);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(74, 163, 224, 0.14), transparent 42%),
    radial-gradient(circle at 86% 88%, rgba(255, 214, 102, 0.12), transparent 46%),
    var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
}
img { max-width: 100%; height: auto; border: 0; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; position: relative; }
.kicker { font-size: 12px; letter-spacing: 0.22em; color: var(--sky-d); }
.h2 { margin: 8px 0 22px; font-size: 28px; font-weight: 800; }
.mark {
  background-image: linear-gradient(transparent 62%, var(--mark) 62%);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.lead { max-width: 640px; color: var(--muted); }
.section { padding: 80px 0; }
.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 0;
  border-radius: var(--r);
  background: linear-gradient(180deg, #6bb8ea, var(--sky));
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  box-shadow: var(--shadow);
}
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }

.index-top {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 40;
  width: 100%;
}
.top-inner {
  width: var(--max);
  max-width: calc(100% - 40px);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 68px;
}
.logo img { width: 118px; display: block; }
.main-nav { display: flex; align-items: center; gap: 16px; font-size: 13px; font-weight: 600; }
.main-nav a { opacity: 0.86; }
.main-nav a:hover, .drop:hover > a { color: var(--sky-d); opacity: 1; }
.drop { position: relative; }
.drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: -10px;
  min-width: 176px;
  padding: 8px;
}
.drop:hover .drop-menu { display: block; }
.drop-menu a { display: block; padding: 8px 10px; border-radius: 8px; font-weight: 500; }
.drop-menu a:hover { background: var(--sky-l); }
.top-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; font-size: 12px; }
.top-cta .link { color: var(--muted); font-weight: 700; }
.top-cta .btn { min-height: 34px; padding: 0 14px; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 110px 0 70px;
  overflow: hidden;
  background: linear-gradient(180deg, #e7f4fd, var(--warm));
}
.globe {
  position: absolute;
  left: 8%;
  top: 6%;
  width: 640px;
  height: 640px;
  opacity: 0.16;
  z-index: 0;
}
.spin { transform-origin: 200px 200px; animation: spin 52s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(ellipse at 30% 40%, rgba(255, 248, 239, 0.08), rgba(45, 122, 184, 0.08));
}
.hero-split {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
}
.hero-visual { position: relative; min-height: 340px; padding: 16px; }
.hero-visual .pc {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.hero-visual .phone {
  position: absolute;
  width: 112px;
  height: 210px;
  object-fit: cover;
  right: 18px;
  bottom: 10px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.float-banner {
  display: inline-block;
  margin-bottom: 14px;
  padding: 6px 14px;
  font-size: 12px;
}
.hero h1 { margin: 0 0 10px; font-size: 48px; font-weight: 900; line-height: 1.18; }
.hero .sub { margin: 0 0 22px; font-size: 17px; color: var(--sky-d); }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.sell-row { overflow: hidden; }
.sell-item { float: left; width: 18%; margin-right: 7%; text-align: center; }
.sell-item:last-child { margin-right: 0; }
.sell-item .illust {
  width: 200px;
  height: 176px;
  object-fit: cover;
  border-radius: var(--r);
  box-shadow: var(--shadow);
}
.sell-item h3 { margin: 12px 0 6px; }
.sell-item p { margin: 0; color: var(--muted); font-size: 13px; }
.sell-row::after { content: ""; display: table; clear: both; }

.line-list li {
  display: grid;
  grid-template-columns: 160px 1fr 220px;
  gap: 16px;
  align-items: center;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.line-list li:first-child { border-top: 1px solid var(--line); }
.line-list strong { font-size: 18px; }
.line-list p { margin: 0; color: var(--muted); }
.line-list img {
  width: 220px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--r);
  box-shadow: var(--shadow);
}

.timeline { max-width: 720px; margin: 0 auto; border-left: 2px solid var(--sky); padding-left: 28px; }
.timeline li { position: relative; margin: 0 0 28px; padding: 16px 18px; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sky);
  box-shadow: 0 0 0 4px var(--sky-l);
}
.timeline b { color: var(--sky-d); font-size: 12px; letter-spacing: 0.12em; }
.timeline h3 { margin: 4px 0 6px; }
.timeline p { margin: 0; color: var(--muted); }

.icon-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.icon-cell { padding: 18px 16px; }
.icon-cell strong { display: block; margin-bottom: 4px; }
.icon-cell span { color: var(--muted); font-size: 13px; }
.more-box { display: none; margin-top: 14px; }
.more-box.is-on { display: grid; }
.fold-btn {
  margin-top: 16px;
  background: transparent;
  border: 0;
  color: var(--sky-d);
  cursor: pointer;
  font-weight: 700;
}
.oa-banner {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--r);
  margin: 16px 0;
  box-shadow: var(--shadow);
}

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 20px; }
.card.private { border-radius: 16px; border: 1px solid rgba(74, 163, 224, 0.28); }
.tile-shot { width: 100%; height: 140px; object-fit: cover; border-radius: 8px; margin-top: 12px; }
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 28px; }
.review { padding: 22px; }
.review p { margin: 0 0 12px; font-size: 16px; }
.review strong { font-size: 12px; color: var(--sky-d); }

.marquee { overflow: hidden; }
.track { display: flex; gap: 14px; width: max-content; animation: slide 90s linear infinite; }
@keyframes slide { to { transform: translateX(-50%); } }
.quote-card { width: 240px; padding: 16px; flex: 0 0 auto; }
.quote-card p { margin: 0 0 8px; }
.quote-card strong { font-size: 12px; color: var(--sky-d); }

.price-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
.price-card { padding: 24px 20px; text-align: center; }
.price-card.is-hot {
  transform: translateY(-8px);
  border: 1px solid var(--sky);
  box-shadow: 0 12px 28px rgba(45, 122, 184, 0.16);
  background: linear-gradient(180deg, #fff, var(--sky-l));
}
.price-card h3 { margin: 0 0 8px; }
.price-card p { color: var(--muted); min-height: 72px; }
.plat-tabs { display: flex; gap: 8px; margin: 22px 0 16px; }
.plat-tabs button {
  min-height: 36px;
  padding: 0 16px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: #fff;
  cursor: pointer;
}
.plat-tabs button.is-on { background: var(--sky); color: #fff; }
.plat-pane { display: none; }
.plat-pane.is-on { display: block; }
.platforms { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.platforms .plat { padding: 10px 18px; }

.acc { margin-bottom: 10px; overflow: hidden; }
.acc-btn {
  width: 100%;
  text-align: left;
  min-height: 52px;
  padding: 0 18px;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.acc-panel { display: none; padding: 0 18px 18px; color: var(--muted); }
.acc.is-on .acc-panel { display: block; }
.acc .row { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; align-items: center; }
.acc .row img { width: 100%; height: 160px; object-fit: cover; border-radius: 8px; }

.article p { color: var(--muted); }
.crumbs { padding: 96px 0 8px; font-size: 12px; color: var(--muted); }
.page-hero { padding-bottom: 20px; }
.page-hero h1 { font-size: 36px; margin: 8px 0 12px; }

.site-foot {
  background: #f7f8f8;
  min-width: var(--foot-min);
  padding: 48px 0 28px;
  border-top: 1px solid var(--line);
}
.foot-inner { width: var(--max); max-width: calc(100% - 40px); margin: 0 auto; }
.foot-logo { width: 140px; margin-bottom: 18px; }
.foot-nav { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.foot-nav h4 { margin: 0 0 10px; font-size: 13px; }
.foot-nav a { display: block; color: var(--muted); font-size: 13px; padding: 3px 0; }
.seo-block {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.legal { margin: 18px 0 0; font-size: 12px; color: var(--muted); }

@media (max-width: 1100px) {
  .hero-split, .line-list li, .cards-3, .reviews, .price-3, .icon-grid, .foot-nav, .acc .row {
    grid-template-columns: 1fr;
  }
  .sell-item { float: none; width: 100%; margin: 0 0 18px; }
  .main-nav { display: none; }
  .site-foot { min-width: 0; }
  .hero-visual .phone { position: static; margin-top: 12px; }
}