/* ============================================================
 * AI幻游空间 · 全站统一样式（移动优先，PC 自适应）
 * 设计语言：深夜霓虹——深蓝紫底 + 青紫渐变光效 + 玻璃拟态卡片
 * ============================================================ */
:root {
  --bg: #0a0e1f;
  --bg2: #131a35;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #eaf0ff;
  --muted: #8b96b8;
  --cyan: #38e1ff;
  --violet: #9d6bff;
  --pink: #ff6bd6;
  --ok: #3ddc97;
  --warn: #ffb84d;
  --bad: #ff6b81;
  --grad: linear-gradient(135deg, #38e1ff, #9d6bff 60%, #ff6bd6);
}
* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html { font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(157, 107, 255, 0.18), transparent 60%),
              radial-gradient(900px 500px at -10% 110%, rgba(56, 225, 255, 0.12), transparent 60%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.65;
}
a { color: var(--cyan); text-decoration: none; }
.wrap { max-width: 760px; margin: 0 auto; padding: 20px 16px 60px; }

/* ---------- 顶栏 ---------- */
.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.topbar .back { color: var(--muted); font-size: 0.95rem; padding: 6px 10px; border: 1px solid var(--card-border); border-radius: 10px; background: var(--card); }
.topbar h1 { font-size: 1.15rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 大厅 ---------- */
.hero { text-align: center; padding: 34px 10px 26px; }
.hero .logo { font-size: 3rem; letter-spacing: 2px; }
.hero h1 { font-size: 2rem; margin: 6px 0 8px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--muted); font-size: 0.95rem; }
.pill { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; padding: 4px 14px; border-radius: 999px; border: 1px solid var(--card-border); background: var(--card); font-size: 0.8rem; color: var(--muted); }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.pill.demo .dot { background: var(--warn); box-shadow: 0 0 8px var(--warn); }

.cards { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 10px; }
@media (min-width: 620px) { .cards { grid-template-columns: 1fr 1fr; } }
.gcard {
  display: block; padding: 20px 18px; border-radius: 18px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); position: relative; overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.gcard:active { transform: scale(0.98); }
@media (hover: hover) { .gcard:hover { transform: translateY(-3px); border-color: rgba(56, 225, 255, 0.5); } }
.gcard .icon { font-size: 2rem; }
.gcard h2 { font-size: 1.1rem; margin: 8px 0 4px; }
.gcard p { color: var(--muted); font-size: 0.85rem; }
.gcard .tag { position: absolute; top: 14px; right: 14px; font-size: 0.7rem; color: var(--cyan); border: 1px solid rgba(56, 225, 255, 0.35); padding: 2px 10px; border-radius: 999px; }

/* ---------- 通用组件 ---------- */
.panel { background: var(--card); border: 1px solid var(--card-border); border-radius: 16px; padding: 16px; margin-bottom: 14px; }
.panel h3 { font-size: 0.95rem; color: var(--cyan); margin-bottom: 10px; }
.hint { color: var(--muted); font-size: 0.82rem; }
.btn {
  display: inline-block; border: none; cursor: pointer; font-size: 1rem; font-family: inherit;
  padding: 12px 22px; border-radius: 12px; color: #061021; font-weight: 600;
  background: var(--grad); color: #fff; transition: opacity 0.15s;
}
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.ghost { background: var(--card); border: 1px solid var(--card-border); color: var(--text); font-weight: 400; }
.btn.small { padding: 7px 14px; font-size: 0.85rem; border-radius: 10px; }
.btn.danger { background: linear-gradient(135deg, #ff6b81, #ff3d71); }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
input[type="text"], textarea, select {
  width: 100%; font-family: inherit; font-size: 1rem; color: var(--text);
  background: rgba(0, 0, 0, 0.3); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 12px 14px; outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--cyan); }
textarea { resize: vertical; min-height: 74px; }
select { appearance: none; }

/* 选项按钮组（快捷行动/投票等） */
.opts { display: grid; gap: 9px; }
.opts button {
  text-align: left; font-family: inherit; font-size: 0.92rem; color: var(--text);
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 11px 14px; cursor: pointer;
}
.opts button:active { border-color: var(--cyan); }
@media (hover: hover) { .opts button:hover { border-color: var(--violet); } }

/* 剧情/叙事展示区 */
.story {
  background: linear-gradient(180deg, rgba(157, 107, 255, 0.08), rgba(56, 225, 255, 0.04));
  border: 1px solid var(--card-border); border-radius: 16px;
  padding: 18px 16px; margin-bottom: 14px; white-space: pre-wrap;
  min-height: 90px; font-size: 0.97rem;
}
.story.fade { animation: fadein 0.5s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* 聊天/历史列表 */
.chat { display: flex; flex-direction: column; gap: 8px; max-height: 46vh; overflow-y: auto; padding-right: 4px; }
.msg { padding: 9px 12px; border-radius: 12px; background: var(--card); border: 1px solid var(--card-border); font-size: 0.9rem; }
.msg.me { background: rgba(56, 225, 255, 0.1); border-color: rgba(56, 225, 255, 0.3); }
.msg.ai { background: rgba(157, 107, 255, 0.1); border-color: rgba(157, 107, 255, 0.3); }
.msg.sys { color: var(--muted); font-size: 0.8rem; text-align: center; border: none; background: none; }
.msg b { color: var(--cyan); }

/* 状态条（血量/心情等） */
.stats { display: flex; gap: 8px; flex-wrap: wrap; }
.stat { flex: 1; min-width: 90px; background: rgba(0, 0, 0, 0.25); border: 1px solid var(--card-border); border-radius: 12px; padding: 8px 10px; text-align: center; }
.stat .v { font-size: 1.15rem; font-weight: 700; color: var(--cyan); }
.stat .k { font-size: 0.72rem; color: var(--muted); }

/* 主题/难度选择块 */
.picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.picks button {
  font-family: inherit; font-size: 0.85rem; color: var(--text); padding: 10px 4px;
  background: var(--card); border: 1px solid var(--card-border); border-radius: 10px; cursor: pointer;
}
.picks button.on { border-color: var(--cyan); background: rgba(56, 225, 255, 0.12); color: var(--cyan); }

/* 结算页 */
.result { text-align: center; padding: 26px 14px; }
.result .big { font-size: 2.2rem; margin-bottom: 8px; }
.result h2 { font-size: 1.4rem; margin-bottom: 10px; }
.result .stars { color: var(--warn); font-size: 1.3rem; letter-spacing: 4px; }

/* toast 提示 */
#toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: rgba(20, 26, 48, 0.95); border: 1px solid var(--card-border); color: var(--text);
  padding: 10px 20px; border-radius: 12px; font-size: 0.9rem; opacity: 0; pointer-events: none;
  transition: all 0.25s ease; z-index: 99; max-width: 86vw;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

footer { text-align: center; color: var(--muted); font-size: 0.75rem; margin-top: 40px; }
.loading { text-align: center; color: var(--muted); padding: 18px; font-size: 0.9rem; }
.loading::after { content: '…'; animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: 0.3; } }