/* 心屿 SoulIsle — 设计令牌：雾蓝夜色 + 情绪色相 */
:root{
  --bg:#070b18; --ink:#e8ecf8; --muted:#8a93b2;
  --accent:#7c6cff; --accent2:#39d0c4;
  --card:rgba(16,22,44,.72); --line:rgba(124,108,255,.22);
  --radius:18px; --shadow:0 18px 60px rgba(0,0,0,.45);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.7;overflow-x:hidden}

#gl{position:fixed;inset:0;width:100%;height:100%;z-index:0}
#gl-fallback{position:fixed;inset:0;z-index:0;background:
  radial-gradient(60% 50% at 30% 20%,rgba(124,108,255,.25),transparent 70%),
  radial-gradient(50% 45% at 75% 70%,rgba(57,208,196,.18),transparent 70%),var(--bg)}

#topbar{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;justify-content:space-between;align-items:center;padding:14px 28px;backdrop-filter:blur(14px);background:linear-gradient(rgba(7,11,24,.75),rgba(7,11,24,0))}
.brand{font-weight:700;letter-spacing:.08em;display:flex;align-items:center;gap:10px}
.brand-dot{width:10px;height:10px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#b9aefe,var(--accent));box-shadow:0 0 18px var(--accent)}
.brand-sub{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.top-right{display:flex;align-items:center;gap:14px}
.badge{font-size:12px;padding:4px 12px;border-radius:999px;border:1px solid var(--line);color:var(--accent2)}
.badge.offline{color:#f0b354;border-color:rgba(240,179,84,.35)}

#story{position:relative;z-index:10}
.act{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:96px 24px}
.act-copy{max-width:640px;width:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:44px 48px;box-shadow:var(--shadow);backdrop-filter:blur(10px)}
.act-copy.wide{max-width:820px}
.kicker{font-size:13px;letter-spacing:.35em;color:var(--accent2);margin-bottom:14px}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.25;font-weight:800;margin-bottom:18px}
h2{font-size:clamp(24px,3.4vw,36px);font-weight:800;margin-bottom:14px}
.lead{color:var(--muted);font-size:15.5px}
.scroll-hint{margin-top:36px;color:var(--muted);font-size:13px;animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

.probe-box{display:flex;gap:10px;margin-top:26px}
.probe-box input{flex:1}
input[type=text],input[type=url],input[type=password]{background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:12px;padding:12px 16px;color:var(--ink);font-size:15px;font-family:var(--font);outline:none;transition:border-color .2s}
input:focus{border-color:var(--accent)}
.primary-btn{background:linear-gradient(135deg,var(--accent),#5a8cff);color:#fff;border:none;border-radius:12px;padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;font-family:var(--font);transition:transform .15s,box-shadow .2s}
.primary-btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(124,108,255,.4)}
.primary-btn:disabled{opacity:.55;cursor:wait;transform:none}
.ghost-btn{background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:10px;padding:8px 14px;font-size:13px;cursor:pointer;font-family:var(--font)}
.ghost-btn:hover{color:var(--ink);border-color:var(--accent)}
.ghost-btn.danger:hover{color:#ff7a7a;border-color:#ff7a7a}
.probe-result{margin-top:18px;min-height:56px}
.emotion-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:14px;margin:4px 6px 4px 0;border:1px solid var(--line);background:rgba(255,255,255,.05)}
.emotion-chip .dot{width:9px;height:9px;border-radius:50%}
.intensity-bar{width:90px;height:6px;border-radius:3px;background:rgba(255,255,255,.12);overflow:hidden;display:inline-block;vertical-align:middle}
.intensity-bar i{display:block;height:100%;border-radius:3px}

.chat-shell{margin-top:26px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(8,12,26,.6)}
.chat-log{height:340px;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:78%;padding:12px 16px;border-radius:14px;font-size:15px;white-space:pre-wrap;word-break:break-word}
.msg.user{align-self:flex-end;background:linear-gradient(135deg,rgba(124,108,255,.32),rgba(90,140,255,.25));border:1px solid rgba(124,108,255,.35)}
.msg.ai{align-self:flex-start;background:rgba(255,255,255,.06);border:1px solid var(--line)}
.msg .tag{display:block;font-size:11px;color:var(--muted);margin-top:6px}
.msg.thinking{color:var(--muted);font-style:italic}
.chat-form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line)}
.chat-form input{flex:1}
.chat-meta{display:flex;justify-content:space-between;padding:0 16px 12px;font-size:12px;color:var(--muted)}
.demo-strip{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 16px;border-top:1px dashed var(--line);font-size:12.5px}
.ghost-btn.tiny{font-size:11.5px;padding:5px 10px}
.voice-btn{font-size:16px;padding:10px 13px;border-radius:12px}
.voice-btn.recording{color:#ff7a7a;border-color:#ff7a7a;animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,122,122,.4)}50%{box-shadow:0 0 0 8px rgba(255,122,122,0)}}

#mood-chart{width:100%;max-width:560px;margin-top:22px;border-radius:12px;background:rgba(255,255,255,.03);border:1px solid var(--line)}
.chart-actions{display:flex;justify-content:space-between;align-items:center;margin-top:14px}
.muted{color:var(--muted);font-size:13px}
.promise{margin:18px 0 8px;padding-left:22px;color:var(--muted);font-size:15px}
.promise li{margin-bottom:10px}
.promise b{color:var(--ink)}

dialog{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);color:var(--ink);padding:0;backdrop-filter:blur(20px);max-width:460px;width:92%}
dialog::backdrop{background:rgba(4,6,14,.7)}
.settings-form{padding:30px 34px}
.settings-form h3{margin-bottom:18px}
.settings-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:14px}
.settings-form label input{width:100%;margin-top:6px}
.dlg-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}

@media(max-width:640px){
  .act-copy{padding:30px 24px}
  .probe-box{flex-direction:column}
  .chat-log{height:280px}
}