:root {
    --cyan: #22e6ff; --pink: #ff3fd8; --yellow: #ffd23f; --green: #3dffa8; --red: #ff4d6d;
    --text: #e2f6ff; --muted: #8094ab; --panel: rgba(12, 14, 34, 0.78); --line: rgba(34, 230, 255, 0.22);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    color: var(--text);
    background: radial-gradient(ellipse at 20% 0%, rgba(120, 0, 160, 0.45), transparent 55%),
                radial-gradient(ellipse at 90% 30%, rgba(0, 120, 160, 0.35), transparent 50%),
                linear-gradient(180deg, #05040f, #0b0620 60%, #120828);
    overflow-x: hidden;
}
.bg-grid {
    position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: 0.35;
    background-image: linear-gradient(rgba(34, 230, 255, 0.08) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(34, 230, 255, 0.08) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
}
.top, .wrap, .foot { position: relative; z-index: 1; }
.top {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    padding: 16px 28px; border-bottom: 1px solid var(--line); background: rgba(5, 5, 16, 0.6); backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-mark { color: var(--pink); text-shadow: 0 0 12px var(--pink); font-size: 20px; }
.brand-text { font: 900 22px/1 "Orbitron", ui-monospace, monospace; letter-spacing: 3px; color: var(--cyan); text-shadow: 0 0 10px rgba(34, 230, 255, 0.7), 2px 0 0 rgba(255, 63, 216, 0.6); }
.brand-sub { color: var(--muted); font-size: 13px; letter-spacing: 2px; }
.nick { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
input {
    background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(34, 230, 255, 0.3); border-radius: 8px;
    color: var(--text); padding: 8px 12px; font: inherit; font-size: 14px; outline: none; min-width: 0;
}
input:focus { border-color: var(--cyan); box-shadow: 0 0 12px rgba(34, 230, 255, 0.3); }
.nick input { width: 140px; }
.btn {
    padding: 8px 16px; border-radius: 8px; border: 1px solid rgba(34, 230, 255, 0.5); background: rgba(34, 230, 255, 0.08);
    color: var(--cyan); font: 600 14px inherit; font-family: inherit; cursor: pointer; white-space: nowrap; text-decoration: none;
    display: inline-flex; align-items: center; justify-content: center; gap: 6px; transition: all 0.15s;
}
.btn:hover { background: rgba(34, 230, 255, 0.18); box-shadow: 0 0 16px rgba(34, 230, 255, 0.35); transform: translateY(-1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn.primary { border-color: rgba(255, 63, 216, 0.75); background: linear-gradient(135deg, rgba(255, 63, 216, 0.35), rgba(120, 60, 255, 0.3)); color: #fff; }
.btn.primary:hover { box-shadow: 0 0 20px rgba(255, 63, 216, 0.55); }
.btn.ghost { background: transparent; }
.btn.danger { border-color: rgba(255, 77, 109, 0.5); color: #ffb3c1; }
.btn.big { padding: 14px 28px; font-size: 16px; border-radius: 12px; }
.btn.small { padding: 6px 10px; font-size: 12px; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 28px 24px 40px; }
.hero { text-align: center; padding: 36px 0 18px; }
.hero h1 { margin: 0 0 12px; font-size: 38px; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: var(--pink); text-shadow: 0 0 18px rgba(255, 63, 216, 0.6); }
.lead { color: var(--muted); max-width: 640px; margin: 0 auto 26px; line-height: 1.7; }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; }
.join { display: flex; gap: 8px; }
.join input { width: 170px; text-transform: uppercase; letter-spacing: 2px; }

.party { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; box-shadow: 0 0 40px rgba(34, 230, 255, 0.08); }
.party-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.party-title { display: flex; align-items: center; gap: 12px; }
.party-title .label { color: var(--muted); }
.party-code { font: 900 26px "Orbitron", ui-monospace, monospace; letter-spacing: 4px; color: var(--yellow); text-shadow: 0 0 12px rgba(255, 210, 63, 0.6); }
.party-actions { display: flex; gap: 8px; }
.conn { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--yellow); }
.conn i { width: 8px; height: 8px; border-radius: 50%; background: var(--yellow); }
.conn.online { color: var(--green); } .conn.online i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.conn.offline, .conn.replaced { color: var(--red); } .conn.offline i, .conn.replaced i { background: var(--red); }
.banner { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; padding: 10px 14px;
    border-radius: 10px; border: 1px solid rgba(255, 210, 63, 0.5); background: rgba(255, 210, 63, 0.08); color: #ffe9a8; }
.banner[hidden] { display: none; }
.party-body { display: grid; grid-template-columns: 300px 1fr; gap: 14px; }
.panel { background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(255, 255, 255, 0.07); border-radius: 12px; padding: 12px; min-height: 220px; display: flex; flex-direction: column; }
.panel-title { font-weight: 700; color: var(--cyan); margin-bottom: 10px; letter-spacing: 1px; }
.panel-title span { color: var(--muted); font-weight: 400; font-size: 13px; }
#memberList { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
#memberList li { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 8px; background: rgba(255, 255, 255, 0.04); font-size: 14px; }
#memberList li.me { box-shadow: inset 0 0 0 1px rgba(34, 230, 255, 0.5); }
#memberList li.off { opacity: 0.45; }
#memberList i { width: 8px; height: 8px; border-radius: 50%; background: #475569; flex: none; }
#memberList i.on { background: var(--green); box-shadow: 0 0 6px var(--green); }
#memberList .mname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tag { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.07); color: var(--muted); white-space: nowrap; }
.tag.host { background: rgba(255, 210, 63, 0.18); color: var(--yellow); }
.tag.where { color: #b9c7ff; }
.host-tip { margin-top: auto; padding-top: 10px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.chat-log { flex: 1; overflow-y: auto; max-height: 240px; min-height: 140px; display: flex; flex-direction: column; gap: 4px; font-size: 14px; padding-right: 4px; }
.chat-log .msg b { color: var(--pink); margin-right: 6px; }
.chat-log .sys { color: var(--muted); font-size: 12px; }
.chat-form { display: flex; gap: 8px; margin-top: 10px; }
.chat-form input { flex: 1; }

.section-title { display: flex; align-items: baseline; gap: 12px; margin: 34px 0 14px; font-size: 20px; }
.section-title span { border-left: 3px solid var(--pink); padding-left: 10px; }
.section-title small { color: var(--muted); font-size: 13px; font-weight: 400; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 18px; }
.card { position: relative; border-radius: 16px; overflow: hidden; background: var(--panel); border: 1px solid var(--line); display: flex; flex-direction: column; transition: transform 0.2s, box-shadow 0.2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 0 34px rgba(255, 63, 216, 0.22); border-color: rgba(255, 63, 216, 0.5); }
.card.picked { box-shadow: 0 0 0 2px var(--yellow), 0 0 30px rgba(255, 210, 63, 0.35); }
.card-art { height: 150px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(34, 230, 255, 0.08), rgba(255, 63, 216, 0.1)); border-bottom: 1px solid var(--line); }
.card-art svg { width: 100%; height: 100%; }
.card-body { padding: 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-name { font-size: 20px; font-weight: 800; }
.card-name small { font: 600 12px "Orbitron", ui-monospace, monospace; color: var(--cyan); margin-left: 8px; letter-spacing: 1px; }
.card-desc { color: var(--muted); font-size: 13px; line-height: 1.6; margin: 0; }
.modes { display: flex; flex-wrap: wrap; gap: 6px; }
.mode { font-size: 12px; padding: 2px 9px; border-radius: 999px; border: 1px solid rgba(34, 230, 255, 0.3); color: #aeefff; }
.mode.online { border-color: rgba(255, 63, 216, 0.5); color: #ffc6f3; }
.card-actions { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }
.card-actions .btn { flex: 1; }
.party-pick[hidden], .solo-online[hidden] { display: none; }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }
.lobby-toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 20px); padding: 10px 18px; border-radius: 10px;
    background: rgba(12, 12, 30, 0.95); border: 1px solid rgba(255, 210, 63, 0.6); color: var(--yellow); opacity: 0; pointer-events: none; transition: all 0.2s; z-index: 99; }
.lobby-toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 760px) {
    .party-body { grid-template-columns: 1fr; }
    .hero h1 { font-size: 28px; }
    .top { padding: 12px 16px; }
}
/* 移动端布局修正（仅布局，不改配色）：窄屏下卡片 / 按钮不溢出 */
.lobby-toast { max-width: calc(100vw - 32px); }
.party-title, .party-actions { flex-wrap: wrap; }
@media (max-width: 760px) {
    .wrap { padding: 16px 14px 32px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn.big { width: 100%; }
    .join input { flex: 1; width: auto; }
    .party-actions { width: 100%; }
    .party-actions .btn { flex: 1; }
    .cards { grid-template-columns: 1fr; }
}