/* ============ CHATV2 · Fluent Design ============ */
:root {
  --accent: #0067c0;
  --accent-hover: #005a9e;
  --accent-active: #004e8c;
  --bg-app: #f5f5f5;
  --bg-rail: rgba(32, 31, 30, 0.94);
  --bg-sidebar: rgba(243, 243, 243, 0.82);
  --bg-main: rgba(252, 252, 252, 0.6);
  --bg-composer: rgba(255, 255, 255, 0.85);
  --bg-hover: rgba(0, 0, 0, 0.055);
  --bg-active: rgba(0, 0, 0, 0.09);
  --bg-modal: rgba(255, 255, 255, 0.88);
  --text: #1b1b1b;
  --text-2: #616161;
  --text-3: #8a8a8a;
  --border: rgba(0, 0, 0, 0.08);
  --accent-text: #fff;
  --danger: #c50f1f;
  --success: #0d652d;
  --scrollbar: rgba(0, 0, 0, 0.25);
  --shadow-1: 0 2px 8px rgba(0,0,0,.10);
  --shadow-2: 0 8px 32px rgba(0,0,0,.16);
  --radius: 6px;
  --font: "Segoe UI Variable Text", "Segoe UI", "Microsoft YaHei UI", "PingFang SC", sans-serif;
}
[data-theme="dark"] {
  --bg-app: #202020;
  --bg-rail: rgba(22, 22, 22, 0.96);
  --bg-sidebar: rgba(36, 36, 36, 0.88);
  --bg-main: rgba(40, 40, 40, 0.72);
  --bg-composer: rgba(45, 45, 45, 0.9);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-active: rgba(255, 255, 255, 0.1);
  --bg-modal: rgba(45, 45, 45, 0.92);
  --text: #f3f3f3;
  --text-2: #bdbdbd;
  --text-3: #858585;
  --border: rgba(255, 255, 255, 0.09);
  --scrollbar: rgba(255, 255, 255, 0.28);
  --accent: #60cdff;
  --accent-hover: #4cc3f7;
  --accent-active: #38b7ef;
  --accent-text: #1b1b1b;
  --danger: #ff99a4;
  --success: #6ccb5f;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg-app);
  color: var(--text);
  overflow: hidden;
  transition: background .25s ease, color .25s ease;
}
.hidden { display: none !important; }
button { font-family: var(--font); border: none; background: none; cursor: pointer; color: inherit; }
input, textarea { font-family: var(--font); color: inherit; }

/* ---- 登录页 ---- */
#auth-view {
  position: fixed; inset: 0;
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(0,103,192,.18), transparent 60%),
    radial-gradient(900px 500px at 90% 110%, rgba(96,205,255,.16), transparent 60%),
    var(--bg-app);
  display: flex; align-items: center; justify-content: center;
}
.auth-card {
  width: 400px; max-width: 92vw;
  background: var(--bg-modal);
  backdrop-filter: blur(30px) saturate(160%);
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-2);
  padding: 36px 32px 28px;
  animation: modalIn .45s cubic-bezier(.2,.8,.2,1);
}
.auth-logo { display: flex; justify-content: center; margin-bottom: 14px; }
.logo-glyph {
  width: 64px; height: 64px; border-radius: 16px;
  background: linear-gradient(135deg, #0067c0, #38b7ef);
  color: #fff; font-size: 34px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(0,103,192,.4);
}
.auth-title { text-align: center; font-size: 26px; font-weight: 650; }
.auth-sub { text-align: center; color: var(--text-2); font-size: 13px; margin: 4px 0 22px; }
.tabs { display: flex; gap: 4px; background: var(--bg-hover); border-radius: 6px; padding: 3px; margin-bottom: 18px; }
.tab { flex: 1; height: 32px; border-radius: 4px; font-size: 14px; font-weight: 600; color: var(--text-2); transition: all .18s; }
.tab.active { background: var(--bg-composer); color: var(--text); box-shadow: var(--shadow-1); }
.auth-form { display: flex; flex-direction: column; gap: 10px; }
.auth-err { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 10px; text-align: center; }
.auth-hint { margin-top: 18px; font-size: 12px; color: var(--text-3); text-align: center; line-height: 1.6; border-top: 1px solid var(--border); padding-top: 14px; }

/* ---- 控件 ---- */
.fluent-input {
  height: 40px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-composer); padding: 0 12px; font-size: 14px; width: 100%;
  transition: border-color .15s, box-shadow .15s;
}
.fluent-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
textarea.fluent-input { height: auto; padding: 10px 12px; resize: vertical; min-height: 90px; }
.fluent-button {
  height: 40px; padding: 0 20px; border-radius: var(--radius); font-size: 14px; font-weight: 600;
  background: var(--bg-hover); color: var(--text); transition: background .15s, transform .1s;
}
.fluent-button:hover { background: var(--bg-active); }
.fluent-button:active { transform: scale(.98); }
.fluent-button.primary { background: var(--accent); color: var(--accent-text); }
.fluent-button.primary:hover { background: var(--accent-hover); }
.fluent-button.primary:active { background: var(--accent-active); }
.fluent-button.danger { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }
.fluent-button.danger:hover { background: color-mix(in srgb, var(--danger) 20%, transparent); }
.fluent-button.block { width: 100%; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 6px; display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-2); position: relative; transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text); }
.icon-btn.danger:hover { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); }
.icon-btn svg { width: 18px; height: 18px; fill: currentColor; }
.menu-btn { display: none; flex-shrink: 0; }
button svg { pointer-events: none; flex-shrink: 0; }

/* 图标尺寸统一（修复部分图标未限制尺寸导致的显示异常） */
.rail-btn svg { width: 24px; height: 24px; fill: currentColor; }
.sidebar-header svg { width: 16px; height: 16px; fill: currentColor; }
.ch-item .hash svg { width: 15px; height: 15px; fill: currentColor; vertical-align: -2px; }
.channel-title .hash svg { width: 18px; height: 18px; fill: currentColor; }
.msg-reply svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }
.reply-preview svg { width: 14px; height: 14px; fill: currentColor; flex-shrink: 0; }
.tab { position: relative; }

/* Fluent Reveal 光效 */
.fluent-button, .send-btn, .ch-item, .mini-btn, .member-item, .role-item, .member-row { position: relative; }
.icon-btn::after, .fluent-button::after, .send-btn::after, .rail-btn::after, .ch-item::after, .mini-btn::after, .member-item::after, .role-item::after, .member-row::after, .tab::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(90px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.32), transparent 55%);
  opacity: 0; transition: opacity .2s;
}
.icon-btn:hover::after, .fluent-button:hover::after, .send-btn:hover::after, .rail-btn:hover::after, .ch-item:hover::after, .mini-btn:hover::after, .member-item:hover::after, .role-item:hover::after, .member-row:hover::after, .tab:hover::after { opacity: 1; }

/* ---- 布局 ---- */
.app { display: flex; height: 100vh; height: 100dvh; }

/* 服务器栏 */
.guild-rail {
  width: 72px; background: var(--bg-rail); backdrop-filter: blur(20px) saturate(140%);
  display: flex; flex-direction: column; align-items: center; padding: 12px 0; gap: 8px; z-index: 10;
}
.rail-btn {
  width: 48px; height: 48px; border-radius: 24px; background: var(--bg-hover);
  display: flex; align-items: center; justify-content: center; color: #fff;
  font-size: 20px; font-weight: 700;
  transition: border-radius .25s cubic-bezier(.2,.8,.2,1), background .15s, transform .12s cubic-bezier(.2,.8,.2,1);
  position: relative;
}
.rail-btn:hover { border-radius: 14px; background: rgba(255,255,255,.14); }
.rail-btn.active { border-radius: 14px; background: var(--accent); color: var(--accent-text); }
.rail-btn.active::before {
  content: ""; position: absolute; left: -12px; top: 50%; transform: translateY(-50%);
  width: 4px; height: 28px; border-radius: 2px; background: #fff;
}
.rail-divider { width: 36px; height: 1px; background: rgba(255,255,255,.18); margin: 2px 0; }
.guild-list { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; align-items: center; padding: 4px; scrollbar-width: none; }
.guild-list::-webkit-scrollbar { display: none; }
.guild-icon {
  width: 48px; height: 48px; border-radius: 24px; font-size: 18px; font-weight: 700; color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: border-radius .25s cubic-bezier(.2,.8,.2,1), transform .15s; position: relative;
  text-transform: uppercase; overflow: hidden; background-size: cover; background-position: center;
}
.guild-icon:hover { border-radius: 14px; transform: scale(1.03); }
.guild-icon.active { border-radius: 14px; }
.guild-icon .g-pos { position: absolute; left: -12px; top: 50%; transform: translateY(-50%); width: 4px; height: 24px; border-radius: 2px; background: #fff; }

/* 侧栏 */
.sidebar {
  width: 252px; background: var(--bg-sidebar); backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  display: flex; flex-direction: column; border-right: 1px solid var(--border);
}
.sidebar-header {
  height: 50px; display: flex; align-items: center; padding: 0 12px; cursor: pointer;
  font-weight: 650; font-size: 15px; border-bottom: 1px solid var(--border); gap: 8px; flex-shrink: 0;
}
.sidebar-header:hover { background: var(--bg-hover); }
.sidebar-header .guild-badge {
  width: 30px; height: 30px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: 14px; flex-shrink: 0;
}
.sidebar-scroll { flex: 1; overflow-y: auto; padding: 10px 8px; scrollbar-width: thin; }
.sidebar-scroll::-webkit-scrollbar { width: 8px; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 4px; }
.group-label {
  display: flex; align-items: center; justify-content: space-between; padding: 6px 4px;
  font-size: 12px; font-weight: 650; color: var(--text-3); letter-spacing: .3px;
}
.group-label .icon-btn { width: 22px; height: 22px; opacity: 0; transition: opacity .15s; }
.group-label:hover .icon-btn { opacity: 1; }
.ch-item {
  display: flex; align-items: center; gap: 8px; height: 34px; padding: 0 10px; border-radius: var(--radius);
  color: var(--text-2); font-size: 14px; cursor: pointer; margin: 1px 0;
  transition: background .15s, color .15s, transform .12s cubic-bezier(.2,.8,.2,1); user-select: none;
}
.ch-item:hover { background: var(--bg-hover); color: var(--text); }
.ch-item.active { background: var(--bg-active); color: var(--text); font-weight: 600; }
.ch-item .hash { font-size: 16px; opacity: .7; width: 16px; text-align: center; }
.ch-item .ch-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ch-item.thread { height: 30px; font-size: 13px; padding-left: 28px; }
.ch-item .archive-tag { font-size: 10px; color: var(--text-3); border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; }
.ch-item .ch-actions { display: none; gap: 2px; }
.ch-item:hover .ch-actions { display: flex; }
.ch-item .icon-btn { width: 22px; height: 22px; }
.ch-item .icon-btn svg { width: 13px; height: 13px; }

/* 侧栏底部用户 */
.sidebar-footer { border-top: 1px solid var(--border); padding: 6px 8px; flex-shrink: 0; }
.user-chip { display: flex; align-items: center; gap: 6px; padding: 5px 6px; border-radius: var(--radius); transition: background .15s; }
.user-chip:hover { background: var(--bg-hover); }
.user-chip .avatar { transition: transform .18s cubic-bezier(.2,.8,.2,1); }
.user-chip:hover .avatar { transform: scale(1.08); }
.avatar {
  width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px;
  flex-shrink: 0; overflow: hidden; background-size: cover; background-position: center; position: relative;
}
.avatar .online-dot { position: absolute; right: -1px; bottom: -1px; width: 10px; height: 10px; border-radius: 50%; background: #0f7b0f; border: 2px solid var(--bg-sidebar); }
.me-info { flex: 1; min-width: 0; }
.me-name { font-size: 13.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.me-status { font-size: 11px; color: var(--success); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.me-actions { display: flex; gap: 1px; flex: none; margin-left: 2px; }
.me-actions .icon-btn {
  width: 27px; height: 27px; opacity: .7;
  transition: opacity .15s, transform .18s cubic-bezier(.2,.8,.2,1), background .15s;
}
.me-actions .icon-btn:hover { opacity: 1; background: var(--bg-active); transform: translateY(-1px); }
.me-actions .icon-btn:active { transform: scale(.9); }

/* 主区域 */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-main); }
.main-header {
  height: 50px; display: flex; align-items: center; gap: 10px; padding: 0 16px;
  border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.channel-title { font-size: 16px; font-weight: 650; display: flex; align-items: center; gap: 8px; }
.channel-title .hash { color: var(--text-2); }
.channel-topic { font-size: 12px; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 40%; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.transport-badge {
  font-size: 11px; padding: 3px 8px; border-radius: 10px; font-weight: 600;
  background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success);
}
.transport-badge.offline { background: color-mix(in srgb, var(--danger) 14%, transparent); color: var(--danger); animation: pulse 1.8s ease-in-out infinite; }

/* 消息列表 */
.messages { flex: 1; overflow-y: auto; padding: 8px 16px 16px; scrollbar-width: thin; }
.messages::-webkit-scrollbar { width: 10px; }
.messages::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 5px; }
.msg-group { display: flex; gap: 12px; padding: 7px 12px; border-radius: 8px; transition: background .12s; animation: rise .3s cubic-bezier(.2,.8,.2,1); }
.msg-group:hover { background: var(--bg-hover); }
.msg-group:hover .msg-avatar { transform: scale(1.05); }
.msg-group.compact { padding-top: 2px; padding-bottom: 2px; }
.msg-avatar { width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0; font-weight: 700; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 16px; background-size: cover; background-position: center; transition: transform .18s cubic-bezier(.2,.8,.2,1); }
.msg-body { flex: 1; min-width: 0; }
.msg-head { display: flex; align-items: baseline; gap: 8px; }
.msg-author { font-weight: 650; font-size: 15px; }
.msg-author .role-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-left: 4px; }
.msg-time { font-size: 11px; color: var(--text-3); }
.msg-actions { display: flex; gap: 2px; opacity: 0; margin-left: auto; }
.msg-group:hover .msg-actions { opacity: 1; }
.msg-actions .icon-btn { width: 26px; height: 26px; }
.msg-actions .icon-btn svg { width: 15px; height: 15px; }
.msg-content { margin-top: 2px; font-size: 14.5px; line-height: 1.55; white-space: pre-wrap; word-break: break-word; }
.msg-content a { color: var(--accent); }
.msg-reply {
  font-size: 12px; color: var(--text-2); background: var(--bg-hover); border-radius: 6px;
  padding: 5px 10px; margin-bottom: 6px; display: inline-flex; gap: 6px; align-items: center; cursor: pointer; max-width: 100%;
}
.msg-reply:hover { background: var(--bg-active); }
.msg-reply .reply-author { font-weight: 600; }
.msg-reply .reply-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 340px; }
.attach-img {
  max-width: 420px; max-height: 340px; border-radius: 10px; margin-top: 8px; display: block; cursor: pointer;
  box-shadow: var(--shadow-1); transition: transform .18s;
}
.attach-img:hover { transform: scale(1.01); }
.file-card {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 8px; padding: 10px 14px;
  background: var(--bg-composer); border: 1px solid var(--border); border-radius: 8px; cursor: pointer;
  max-width: 360px; transition: background .15s, box-shadow .15s;
}
.file-card:hover { background: var(--bg-hover); box-shadow: var(--shadow-1); }
.file-card .file-icon { width: 36px; height: 36px; border-radius: 8px; background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.file-card .file-icon svg { width: 20px; height: 20px; fill: currentColor; }
.file-card .file-meta { min-width: 0; }
.file-card .file-name { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-card .file-size { font-size: 11px; color: var(--text-3); }
.deleted-msg { color: var(--text-3); font-style: italic; font-size: 13px; }
.system-msg { color: var(--text-3); font-size: 13px; text-align: center; margin: 10px 0; }

/* 输入区 */
.composer-wrap { padding: 0 16px 14px; flex-shrink: 0; }
.composer {
  display: flex; align-items: flex-end; gap: 8px; padding: 8px 10px;
  background: var(--bg-composer); backdrop-filter: blur(24px) saturate(160%);
  border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow-1);
  transition: box-shadow .2s, border-color .2s;
}
.composer:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
.composer-textarea-wrap { flex: 1; }
#composer-input {
  width: 100%; border: none; background: transparent; resize: none; font-size: 14.5px; line-height: 1.5;
  max-height: 200px; padding: 6px 2px; outline: none;
}
.send-btn {
  width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--accent-text);
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, transform .15s cubic-bezier(.2,.8,.2,1), box-shadow .2s; flex-shrink: 0;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--accent) 35%, transparent);
}
.send-btn:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 5px 16px color-mix(in srgb, var(--accent) 55%, transparent); }
.send-btn:active { transform: scale(.92) translateY(0); }
.send-btn svg { width: 20px; height: 20px; fill: currentColor; }
.attach-preview { display: flex; gap: 8px; padding: 8px 2px; flex-wrap: wrap; }
.attach-chip {
  display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 8px;
  background: var(--bg-hover); font-size: 12px; border: 1px solid var(--border); animation: rise .25s ease;
}
.attach-chip img { width: 40px; height: 40px; object-fit: cover; border-radius: 6px; }
.attach-chip .remove { color: var(--text-3); }
.attach-chip .remove:hover { color: var(--danger); }
.reply-preview {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px; font-size: 12px; color: var(--text-2);
  background: var(--bg-hover); border-left: 3px solid var(--accent); border-radius: 6px; margin-bottom: 6px;
}
.reply-preview .reply-author { font-weight: 600; color: var(--text); }

/* 成员面板 */
.member-panel {
  width: 240px; background: var(--bg-sidebar); backdrop-filter: blur(28px) saturate(160%);
  border-left: 1px solid var(--border); display: flex; flex-direction: column; animation: slideLeft .3s ease;
}
.member-panel-title { height: 50px; display: flex; align-items: center; padding: 0 16px; font-weight: 650; border-bottom: 1px solid var(--border); }
.member-list { flex: 1; overflow-y: auto; padding: 10px 8px; }
.member-group-label { font-size: 12px; font-weight: 650; color: var(--text-3); padding: 8px 6px 4px; }
.member-item { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px; cursor: pointer; }
.member-item:hover { background: var(--bg-hover); }
.member-item .avatar { width: 30px; height: 30px; font-size: 13px; }
.member-item .m-name { font-size: 13.5px; font-weight: 550; }

/* 模态框 */
.modal-root { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.4); backdrop-filter: blur(4px); animation: fadeIn .2s ease; }
.modal-card {
  position: relative; width: 520px; max-width: 94vw; max-height: 86vh; overflow: hidden;
  background: var(--bg-modal); backdrop-filter: blur(36px) saturate(180%);
  border-radius: 12px; box-shadow: var(--shadow-2); border: 1px solid var(--border);
  animation: modalIn .3s cubic-bezier(.2,.8,.2,1);
  display: flex; flex-direction: column;
}
.modal-card.wide { width: 760px; }
.modal-head { display: flex; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 17px; font-weight: 650; flex: 1; }
.modal-body { padding: 18px 20px; overflow-y: auto; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--border); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-2); margin-bottom: 5px; font-weight: 600; }
.field .hint { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* 权限行 */
.perm-row { display: flex; align-items: center; justify-content: space-between; padding: 8px 4px; border-bottom: 1px solid var(--border); font-size: 14px; }
.perm-row:last-child { border-bottom: none; }
.perm-actions { display: flex; gap: 6px; align-items: center; }
.perm-state { display: flex; gap: 6px; }
.switch-group { display: flex; gap: 6px; }
.mini-btn {
  height: 30px; padding: 0 12px; border-radius: 5px; font-size: 12px; font-weight: 600;
  background: var(--bg-hover); color: var(--text-2); transition: all .15s;
}
.mini-btn.on { background: var(--success); color: #fff; }
.mini-btn.off { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }
.mini-btn.muted { background: var(--bg-hover); color: var(--text-3); }
.mini-btn:hover { filter: brightness(1.06); }

/* 角色/成员列表 */
.role-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 6px; }
.role-item:hover { background: var(--bg-hover); }
.role-color { width: 14px; height: 14px; border-radius: 4px; }
.member-row { display: flex; align-items: center; gap: 10px; padding: 7px 10px; border-radius: 6px; }
.member-row:hover { background: var(--bg-hover); }
.member-row .avatar { width: 30px; height: 30px; font-size: 13px; }
.member-row .mname { flex: 1; font-size: 14px; font-weight: 550; }
.member-row .badges { display: flex; gap: 4px; flex-wrap: wrap; max-width: 180px; }
.role-badge {
  font-size: 10px; padding: 2px 6px; border-radius: 8px; color: #fff; font-weight: 600; cursor: pointer; transition: opacity .15s;
}
.role-badge:hover { opacity: .8; }

/* Toast */
.toast-root { position: fixed; bottom: 24px; right: 24px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--bg-modal); backdrop-filter: blur(20px); color: var(--text);
  padding: 12px 18px; border-radius: 8px; box-shadow: var(--shadow-2); font-size: 14px;
  border: 1px solid var(--border); animation: toastIn .35s cubic-bezier(.2,.8,.2,1); max-width: 320px;
}
.toast.error { border-left: 4px solid var(--danger); }
.toast.ok { border-left: 4px solid var(--success); }

/* 空状态 */
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--text-3); gap: 10px; }
.empty-state svg { width: 56px; height: 56px; opacity: .4; animation: floatY 3.4s ease-in-out infinite; fill: currentColor; }
.empty-state .big { font-size: 18px; font-weight: 650; color: var(--text-2); }

/* 动效 */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideLeft { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px) scale(.95); }
  to { opacity: 1; transform: none; }
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(28px) scale(.96); }
  to { opacity: 1; transform: none; }
}
@keyframes msgPop {
  from { opacity: 0; transform: translateY(8px) scale(.98); }
  to { opacity: 1; transform: none; }
}
@keyframes modalOut {
  from { opacity: 1; transform: none; }
  to { opacity: 0; transform: translateY(10px) scale(.97); }
}
@keyframes typing { 0%, 80%, 100% { transform: scale(.6); opacity: .4; } 40% { transform: scale(1); opacity: 1; } }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--scrollbar); border-radius: 5px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); background-clip: content-box; border: 2px solid transparent; }

/* 响应式 */
@media (max-width: 900px) {
  .sidebar { width: 220px; }
  /* 成员面板：平板/手机上变成右侧滑入抽屉 */
  .member-panel {
    position: fixed; right: 0; top: 0; bottom: 0; z-index: 61;
    width: 280px; max-width: 82vw;
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-2);
    transform: translateX(105%);
    visibility: hidden; pointer-events: none;
    transition: transform .25s ease, visibility .25s;
  }
  .member-panel.open { transform: none; visibility: visible; pointer-events: auto; }
  .member-panel.hidden { display: block !important; }
}
@media (max-width: 700px) {
  /* 服务器栏变窄 */
  .guild-rail { width: 56px; padding: 10px 0; z-index: 58; }
  .rail-btn, .guild-icon { width: 42px; height: 42px; font-size: 16px; }
  .rail-btn.active::before, .guild-icon .g-pos { left: -7px; height: 20px; }
  .rail-divider { width: 30px; }

  /* 频道侧栏：抽屉 */
  .sidebar {
    position: fixed; left: 56px; top: 0; bottom: 0; z-index: 60;
    width: min(300px, calc(100vw - 56px));
    transform: translateX(-105%);
    visibility: hidden; pointer-events: none;
    transition: transform .25s ease, visibility .25s;
    box-shadow: var(--shadow-2);
  }
  .sidebar.open { transform: none; visibility: visible; pointer-events: auto; }

  /* 抽屉背景遮罩 */
  body.drawer-open::after {
    content: ""; position: fixed; inset: 0; z-index: 55;
    background: rgba(0, 0, 0, .35); animation: fadeIn .2s ease;
  }

  /* 顶栏 */
  .menu-btn { display: inline-flex; }
  .main-header { padding: 0 10px; gap: 6px; }
  .channel-title { font-size: 15px; }
  .channel-topic { display: none; }
  .transport-badge { font-size: 10px; padding: 2px 6px; }

  /* 消息区与输入区 */
  .messages { padding: 8px 8px 12px; }
  .msg-group { padding: 6px 8px; gap: 10px; }
  .msg-avatar { width: 36px; height: 36px; font-size: 14px; }
  .composer-wrap { padding: 0 8px calc(8px + env(safe-area-inset-bottom, 0px)); }
  .composer { padding: 6px 8px; }
  .attach-img { max-width: 100%; }
  #composer-input, .fluent-input, .set-input { font-size: 16px; }

  /* 模态框：底部抽屉式全屏 */
  .modal-root { align-items: flex-end; }
  .modal-card, .modal-card.wide {
    width: 100vw; max-width: 100vw; max-height: 92dvh;
    border-radius: 16px 16px 0 0;
  }
  .modal-head { padding: 14px 16px; }
  .modal-body { padding: 14px 16px; }
  .modal-foot { padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px)); }

  /* 审查 / 用户管理：上下布局 */
  .review-layout, .users-wrap { height: 62dvh; margin: 0 -16px -14px; }
  .review-side { width: 100%; border-right: none; border-bottom: 1px solid var(--border); max-height: 34%; }
  .users-wrap .set-input { margin: 6px 16px 0; }

  /* 登录页与提示 */
  .auth-card { padding: 28px 20px 24px; }
  .toast-root {
    left: 16px; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    align-items: flex-end;
  }
  .toast { max-width: none; }
}
/* 触屏设备：无 hover，操作按钮常显 */
@media (hover: none) {
  .msg-actions { opacity: 1; }
  .ch-item .ch-actions { display: flex; }
  .group-label .icon-btn { opacity: 1; }
  .review-del { opacity: 1; }
}

/* ---------- 私信（DM） ---------- */
.rail-btn { position: relative; }
.rail-badge, .btn-badge {
  position: absolute; top: 2px; right: 2px; z-index: 2;
  min-width: 16px; height: 16px; border-radius: 8px;
  background: var(--danger); color: #fff; font-size: 10px; font-weight: 700;
  display: none; align-items: center; justify-content: center; padding: 0 4px;
}
.rail-badge.show, .btn-badge.show { display: flex; }
.badge {
  position: absolute; top: 1px; right: 1px; z-index: 2;
  min-width: 15px; height: 15px; border-radius: 8px;
  background: var(--danger); color: #fff; font-size: 9px; font-weight: 700;
  display: none; align-items: center; justify-content: center; padding: 0 3px;
}
.badge.show { display: flex; }

/* DM 会话列表 */
.dm-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px;
  border-radius: 8px; cursor: pointer; color: var(--text-2); margin: 1px 0;
}
.dm-item:hover { background: var(--hover); color: var(--text); }
.dm-item.active { background: var(--accent); color: #fff; }
.dm-av {
  position: relative; width: 40px; height: 40px; border-radius: 50%;
  color: #fff; font-size: 14px; font-weight: 600; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; overflow: visible;
}
.dm-av .online-dot {
  position: absolute; bottom: 0; right: 0; width: 11px; height: 11px;
  border-radius: 50%; background: #3ba55d; border: 2px solid var(--bg);
}
.dm-info { min-width: 0; flex: 1; }
.dm-name { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dm-last { font-size: 12px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dm-unread {
  min-width: 18px; height: 18px; border-radius: 9px; background: var(--danger);
  color: #fff; font-size: 11px; font-weight: 700; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; padding: 0 5px;
}

/* DM 首页 */
.dm-home { max-width: 560px; margin: 40px auto; padding: 0 16px; }
.dm-home-title { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.dm-home-title svg { width: 26px; height: 26px; fill: var(--accent); }
.dm-home-content { display: flex; flex-direction: column; gap: 4px; margin-top: 16px; }
.dm-friend {
  display: flex; align-items: center; gap: 10px; padding: 8px;
  border-radius: 10px; background: var(--bg-2); cursor: pointer; border: 1px solid var(--border);
}
.dm-friend:hover { background: var(--hover); }
.dm-friend .mini-btn { margin-left: auto; }

/* @提及高亮 */
.mention {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent); border-radius: 4px; padding: 0 3px; font-weight: 600;
}

/* 编辑模式 */
#edit-preview .reply-author { color: var(--accent); }

/* 设置 / 好友面板 */
.set-sec { margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.set-sec:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.set-sec-title { font-size: 12px; font-weight: 700; color: var(--text-2); margin: 12px 0 10px; text-transform: uppercase; letter-spacing: .6px; }
.set-label { display: block; font-size: 12px; color: var(--text-2); margin: 10px 0 4px; }
.set-input {
  width: 100%; height: 34px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-hover); color: var(--text); padding: 0 10px; font-size: 14px;
  font-family: var(--font); box-sizing: border-box;
}
.set-input:focus { outline: 2px solid var(--accent, #1a73e8); outline-offset: -1px; border-color: transparent; }
.set-input[disabled] { opacity: .55; }
.set-profile { display: flex; align-items: center; gap: 16px; margin: 6px 0 14px; }
.set-profile-info { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; min-width: 0; }
.set-profile-name { font-size: 16px; font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 280px; }
.set-profile-uname { font-size: 12px; color: var(--text-3); }
.set-avatar {
  width: 68px; height: 68px; border-radius: 50%; color: #fff; flex: none;
  display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 600;
  box-shadow: 0 3px 12px color-mix(in srgb, var(--accent) 25%, transparent);
  transition: box-shadow .2s;
}
.set-avatar:hover { box-shadow: 0 5px 18px color-mix(in srgb, var(--accent) 42%, transparent); }
.set-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.friend-add { display: flex; gap: 8px; margin: 6px 0 4px; }
.friend-add .set-input { flex: 1; }
.friend-row { display: flex; align-items: center; gap: 10px; padding: 8px 6px; border-radius: 8px; }
.friend-row:hover { background: var(--bg-hover); }
.friend-av { width: 34px; height: 34px; border-radius: 50%; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; flex: none; }
.friend-name { flex: 1; font-size: 14px; min-width: 0; }
.friend-uname { display: block; font-size: 11px; color: var(--text-3); }
.friend-actions { display: flex; gap: 6px; flex: none; }

/* 超管：内容审查 */
.review-tip { font-size: 11px; color: var(--text-3); margin: 6px 0 10px; }
.review-layout { display: flex; height: 520px; margin: 0 -20px -18px; }
.review-side {
  width: 264px; flex: none; border-right: 1px solid var(--border); box-sizing: border-box;
  display: flex; flex-direction: column; padding: 8px 10px;
}
.review-side .set-input { flex: none; margin-bottom: 8px; }
.review-tree { flex: 1; overflow-y: auto; }
.review-guild { display: flex; align-items: center; gap: 8px; padding: 8px 6px; font-weight: 650; font-size: 13px; color: var(--text-2); }
.review-guild-badge {
  width: 24px; height: 24px; border-radius: 6px; flex: none; color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700;
}
.review-channel {
  display: flex; align-items: center; gap: 6px; padding: 6px 8px 6px 14px; border-radius: 6px;
  cursor: pointer; font-size: 14px; color: var(--text-2); transition: background .15s, color .15s;
}
.review-channel:hover { background: var(--bg-hover); color: var(--text); }
.review-channel.active { background: var(--bg-active); color: var(--text); font-weight: 600; }
.review-channel.thread { padding-left: 28px; font-size: 13px; }
.review-channel svg { width: 14px; height: 14px; fill: currentColor; flex: none; }
.review-channel .review-hash { width: 14px; text-align: center; font-size: 15px; opacity: .7; flex: none; }
.review-msgs { flex: 1; overflow-y: auto; padding: 12px 16px; min-width: 0; }
.review-msgs-head { font-size: 13px; font-weight: 650; color: var(--text-2); padding: 4px 0 10px; border-bottom: 1px solid var(--border); margin-bottom: 6px; }
.review-msgs-count { font-weight: 400; color: var(--text-3); font-size: 12px; }
.review-msg { padding: 8px 6px; border-bottom: 1px solid var(--border); }
.review-msg:last-child { border-bottom: none; }
.review-msg-head { display: flex; align-items: center; gap: 8px; }
.review-msg-author { font-weight: 650; font-size: 13px; }
.review-msg-time { font-size: 11px; color: var(--text-3); flex: 1; }
.review-msg-content { margin-top: 3px; font-size: 14px; line-height: 1.55; white-space: pre-wrap; word-break: break-word; }
.review-msg-att { font-size: 12px; color: var(--text-2); margin-top: 3px; }
.review-del { width: 26px; height: 26px; opacity: 0; transition: opacity .15s; }
.review-msg:hover .review-del { opacity: 1; }
.review-del svg { width: 15px; height: 15px; }

/* 超管：用户管理 */
.users-wrap { display: flex; flex-direction: column; height: 520px; margin: 0 -20px -18px; }
.users-wrap .set-input { flex: none; margin: 8px 20px 0; }
.users-list { flex: 1; overflow-y: auto; padding: 8px 16px 16px; }
.user-row { display: flex; align-items: center; gap: 12px; padding: 8px; border-radius: 8px; }
.user-row:hover { background: var(--bg-hover); }
.user-av { width: 36px; height: 36px; border-radius: 50%; flex: none; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.user-info { min-width: 0; flex: 1; }
.user-name { font-size: 14px; font-weight: 650; display: flex; align-items: center; gap: 6px; }
.user-badge-super { font-size: 10px; font-weight: 700; color: #fff; background: var(--accent, #1a73e8); padding: 1px 6px; border-radius: 999px; }
.user-badge-me { font-size: 10px; color: var(--text-3); border: 1px solid var(--border); padding: 1px 6px; border-radius: 999px; }
.user-uname { font-size: 12px; color: var(--text-3); margin-top: 2px; }