/* MUSEO 官网 · 共享样式
   视觉语言对齐 iOS：纯黑底 / 米金 #FFEBC7 / 花色红 #FF0044 / 中文黑体 / 英文衬线 */
:root {
  --bg: #000;
  --panel: #161615;
  --panel2: #1d1d1b;
  --ink: #fff;
  --ink2: rgba(255, 255, 255, .62);
  --ink3: rgba(255, 255, 255, .4);
  --line: rgba(255, 255, 255, .1);
  --gold: #ffebc7;
  --golddim: #6e5c36;
  --red: #ff0044;
  --paper: #f7f3e9;
  --serif: Georgia, "Times New Roman", "Arvo", serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 680px; }

/* ---- 顶栏 ---- */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(0, 0, 0, .82);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; height: 62px; gap: 18px; }
.nav .mark { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav .mark img { width: 22px; height: auto; display: block; }
.nav .mark span {
  font-family: var(--serif); letter-spacing: .3em;
  color: var(--gold); font-size: 13.5px; font-weight: 600;
}
.nav .links { margin-left: auto; display: flex; gap: 22px; align-items: center; }
.nav .links a {
  color: var(--ink2); text-decoration: none; font-size: 14px;
  transition: color .18s ease;
}
.nav .links a:hover { color: var(--gold); }

/* ---- Hero ---- */
.hero { padding: 92px 0 68px; position: relative; overflow: hidden; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 50% at 78% 18%, rgba(255, 235, 199, .1), transparent 70%);
}
.hero .grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; position: relative; z-index: 1; }
.eyebrow {
  font-family: var(--serif); letter-spacing: .34em; font-size: 12.5px;
  color: var(--gold); margin-bottom: 20px;
}
h1.big { font-size: 52px; line-height: 1.2; font-weight: 700; letter-spacing: .02em; }
h1.big em { font-style: normal; color: var(--gold); }
.lede { color: var(--ink2); font-size: 17.5px; margin: 24px 0 34px; max-width: 30em; }
.suits { display: flex; gap: 8px; font-size: 15px; letter-spacing: .1em; margin-bottom: 26px; }
.suits i { font-style: normal; color: var(--gold); opacity: .85; }
.suits i.r { color: var(--red); }

/* ---- 按钮 ---- */
.btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 12px; text-decoration: none;
  font-size: 15.5px; font-weight: 600; letter-spacing: .04em;
  transition: transform .18s ease, opacity .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.pri { background: var(--gold); color: #14140f; }
.btn.gh { border: 1px solid var(--line2, rgba(255,255,255,.18)); color: var(--ink); background: rgba(255,255,255,.05); }
.btn.gh:hover { border-color: var(--gold); color: var(--gold); }
.note { color: var(--ink3); font-size: 13px; margin-top: 14px; }

/* ---- 牌组视觉 ---- */
.deck { position: relative; height: 420px; }
.deck img {
  position: absolute; width: 200px; border-radius: 14px; display: block;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .8), 0 0 0 1px rgba(255, 255, 255, .08);
}
.deck .c1 { left: 4%;  top: 12%; transform: rotate(-9deg); }
.deck .c2 { left: 30%; top: 0;  transform: rotate(3deg);  z-index: 2; width: 218px; }
.deck .c3 { left: 55%; top: 20%; transform: rotate(11deg); }
.deck .c4 { left: 22%; top: 46%; transform: rotate(-4deg); width: 172px; opacity: .92; }

/* ---- 区块 ---- */
section { padding: 76px 0; border-top: 1px solid var(--line); }
.sec-eyebrow { font-family: var(--serif); letter-spacing: .28em; font-size: 12px; color: var(--gold); margin-bottom: 14px; }
h2.sec { font-size: 32px; font-weight: 700; letter-spacing: .02em; margin-bottom: 18px; }
.sec-sub { color: var(--ink2); font-size: 16.5px; max-width: 46em; margin-bottom: 44px; }

/* 四花色卡 */
.four { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.four .cell {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px;
  padding: 26px 22px; transition: border-color .2s ease, transform .2s ease;
}
.four .cell:hover { border-color: rgba(255, 235, 199, .35); transform: translateY(-4px); }
.four .g { font-size: 26px; line-height: 1; margin-bottom: 16px; }
.four .g.r { color: var(--red); }
.four .g.gd { color: var(--gold); }
.four h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.four p { color: var(--ink2); font-size: 14px; line-height: 1.75; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.steps .st { position: relative; padding-top: 42px; }
.steps .st::before {
  counter-increment: s; content: "0" counter(s);
  position: absolute; top: 0; left: 0;
  font-family: var(--serif); font-size: 26px; color: var(--golddim); letter-spacing: .06em;
}
.steps .st h4 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.steps .st p { color: var(--ink2); font-size: 14.5px; }

/* 截图带 */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.shots figure { margin: 0; }
.shots img {
  width: 100%; border-radius: 18px; display: block;
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .7);
}
.shots figcaption { color: var(--ink3); font-size: 13px; margin-top: 12px; text-align: center; }

/* 数据条 */
.stats { display: flex; gap: 48px; flex-wrap: wrap; }
.stats .k b { display: block; font-family: var(--serif); font-size: 40px; color: var(--gold); line-height: 1.1; }
.stats .k span { color: var(--ink3); font-size: 13.5px; letter-spacing: .06em; }

/* 隐私/协议文档页 */
.doc { padding: 64px 0 96px; }
.doc h1 { font-size: 34px; font-weight: 700; letter-spacing: .04em; margin-bottom: 14px; }
.doc .meta { color: var(--ink3); font-size: 14px; margin-bottom: 44px; }
.doc h2 {
  font-size: 19px; font-weight: 700; letter-spacing: .04em;
  margin: 42px 0 14px; padding-left: 14px; border-left: 3px solid var(--red);
}
.doc p { color: var(--ink2); margin-bottom: 14px; }
.doc p strong, .doc li strong { color: var(--ink); }
.doc ul, .doc ol { color: var(--ink2); padding-left: 22px; margin-bottom: 14px; }
.doc li { margin-bottom: 8px; }
.doc .card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 20px 22px; margin: 18px 0 26px;
}
.doc .card p:last-child { margin-bottom: 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 10px 0 18px; font-size: 15px; }
.doc th, .doc td { text-align: left; padding: 10px 12px; border: 1px solid var(--line); color: var(--ink2); }
.doc th { color: var(--ink); font-weight: 600; background: rgba(255, 255, 255, .04); }
.hl { color: var(--gold); }

/* 页脚 */
footer {
  border-top: 1px solid var(--line); padding: 34px 0 44px;
  color: var(--ink3); font-size: 13.5px;
}
footer .wrap { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
footer a { color: var(--ink2); text-decoration: none; }
footer a:hover { color: var(--gold); }
footer .icp { margin-left: auto; }

/* 响应式 */
@media (max-width: 900px) {
  .hero .grid { grid-template-columns: 1fr; gap: 24px; }
  .deck { height: 340px; margin-top: 8px; }
  .deck img { width: 158px; }
  .deck .c2 { width: 172px; }
  .deck .c4 { width: 136px; }
  h1.big { font-size: 38px; }
  .four, .steps, .shots { grid-template-columns: repeat(2, 1fr); }
  section { padding: 56px 0; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .hero { padding: 56px 0 44px; }
  h1.big { font-size: 31px; }
  h2.sec { font-size: 25px; }
  .four, .steps { grid-template-columns: 1fr; }
  .shots { grid-template-columns: 1fr; }
  .deck { height: 300px; }
  .deck img { width: 132px; }
  .deck .c2 { width: 144px; }
  .nav .links { gap: 14px; }
  .nav .links a { font-size: 13px; }
  .stats { gap: 26px; }
  .stats .k b { font-size: 30px; }
  .doc h1 { font-size: 26px; }
  footer .icp { margin-left: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}