/**
 * 结构样式（主题无关）：布局/尺寸/间距/几何/动画。
 * 颜色/背景/边框/阴影等主题相关样式见 css/dark/common.css（暗色）与 css/light/common.css（亮色）。
 */

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body { font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif; overflow: hidden; -webkit-font-smoothing: antialiased; }

body::before { content: ""; position: fixed; inset: 0; z-index: -2; }

body::after { content: ""; position: fixed; inset: -20%; z-index: -1; animation: aurora-drift 26s linear infinite; pointer-events: none; }

@keyframes aurora-drift {
    0% { transform: translate3d(-6%, -4%, 0) rotate(0.001deg); }
    50% { transform: translate3d(6%, 4%, 0) rotate(0.001deg); }
    100% { transform: translate3d(-6%, -4%, 0) rotate(0.001deg); }
}

.glass { border-radius: var(--radius-lg); -webkit-backdrop-filter: var(--blur); }

.usermenu-modal-card,
.cdr-modal-card,
.incoming-card { -webkit-backdrop-filter: blur(24px) saturate(1.5); }

.theme-toggle { appearance: none; display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; padding: 0; border-radius: 5px; cursor: pointer; transition: color var(--dur-fast) var(--ease-silk),
                background var(--dur-med) var(--ease-silk),
                box-shadow var(--dur-med) var(--ease-silk),
                transform var(--dur-fast) var(--ease-silk); }

.btn { appearance: none; font-size: 14px; font-weight: 600; letter-spacing: 0.02em; padding: 10px 18px; border-radius: var(--radius-md); cursor: pointer; position: relative; transition: transform var(--dur-fast) var(--ease-silk),
                box-shadow var(--dur-med) var(--ease-silk),
                background var(--dur-med) var(--ease-silk),
                border-color var(--dur-med) var(--ease-silk),
                opacity var(--dur-fast) var(--ease-silk); user-select: none; }

.btn-sm { font-size: 12.5px; font-weight: 600; padding: 6px 12px; border-radius: 8px; }

.btn:active:not(:disabled) { transform: translateY(0) scale(0.97); }

.btn:disabled { cursor: not-allowed; }

.btn-primary { animation: rainbow-slide 6s linear infinite; }

@keyframes rainbow-slide {
    0% { background-position: 0 0, 0% 50%; }
    100% { background-position: 0 0, 300% 50%; }
}

.btn-loading { cursor: wait !important; display: inline-flex; align-items: center; justify-content: center; gap: 7px; }

.spinner { display: inline-block; width: 13px; height: 13px; border-radius: 50%; animation: spin 0.7s linear infinite; }

@keyframes spin {
    to { transform: rotate(360deg); }
}

.input { appearance: none; border-radius: var(--radius-sm); font-size: 14px; padding: 10px 12px; transition: border-color var(--dur-med) var(--ease-silk),
                box-shadow var(--dur-med) var(--ease-silk),
                background var(--dur-med) var(--ease-silk); }

.dropdown { position: absolute; top: calc(100% + 10px); left: 0; min-width: 260px; border-radius: var(--radius-md); -webkit-backdrop-filter: blur(20px) saturate(1.4); padding: 14px; z-index: 100; transform: translateY(-8px) scale(0.98); pointer-events: none; transition: opacity var(--dur-med) var(--ease-silk),
                transform var(--dur-med) var(--ease-silk); }

.dropdown.open { transform: translateY(0) scale(1); pointer-events: auto; }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; padding: 3px 10px; border-radius: 999px; }

.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; animation: dot-pulse 1.8s var(--ease-silk) infinite; }

.dot-offline { animation: none; }

@keyframes dot-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.82); }
}

@keyframes rise-in {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes page-slide-in {
    from { opacity: 0; transform: translateX(36px); }
    to { opacity: 1; transform: translateX(0); }
}

.rise-in { animation: rise-in var(--dur-med) var(--ease-silk) both; }

::-webkit-scrollbar { width: 8px; height: 8px; }

::-webkit-scrollbar-thumb { border-radius: 999px; }

.text-rainbow { -webkit-background-clip: text; background-clip: text; animation: rainbow-slide 8s linear infinite; }

.app-toast { position: fixed; top: 76px; left: 50%; transform: translateX(-50%) translateY(-12px); z-index: 500; padding: 10px 22px; border-radius: var(--radius-md); font-size: 13.5px; font-weight: 600; transition: all var(--dur-med) var(--ease-silk); }

.app-toast.show { transform: translateX(-50%) translateY(0); }

.app-pager { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 5px; padding-top: 10px; }

.app-pager .cdr-page-btn { min-width: 30px; height: 30px; padding: 0 7px; margin: 0 3px; border-radius: var(--radius-sm); font-size: 12.5px; font-weight: 600; font-variant-numeric: tabular-nums; cursor: pointer; transition: all var(--dur-fast) var(--ease-silk); }

.app-pager .cdr-page-btn:disabled { cursor: not-allowed; }

.app-pager .cdr-page-dots { padding: 0 2px; font-size: 12px; }

.app-pager .cdr-total { font-size: 11px; margin-left: 6px; }

.lang-switcher { position: relative; display: inline-flex; }

.lang-btn { display: inline-flex; align-items: center; gap: 7px; padding: 8px 13px; border-radius: var(--radius-md); font-size: 12.5px; font-weight: 600; cursor: pointer; transition: all var(--dur-fast) var(--ease-silk); }

.lang-btn .fa-chevron-down { font-size: 9px; }

.lang-dropdown { position: absolute; top: calc(100% + 8px); right: 0; left: auto; width: max-content; min-width: 120px; max-width: 260px; z-index: 320; padding: 6px; display: none; max-height: 300px; overflow-y: auto; }

/* 语言切换器下拉：宽度与选择框（按钮）保持一致，不再按内容撑宽 */
.lang-switcher .lang-dropdown { left: 0; right: 0; width: 100%; min-width: 0; max-width: none; }

.lang-dropdown.open { display: block; animation: rise-in var(--dur-fast) var(--ease-silk) both; }

.lang-item { padding: 8px 12px; border-radius: var(--radius-sm); font-size: 13px; cursor: pointer; transition: all var(--dur-fast) var(--ease-silk); white-space: nowrap; }

.lang-item + .lang-item { margin-top: 2px; }

.lang-item.active { font-weight: 700; }

.app-dropdown { position: relative; display: inline-flex; width: 100%; min-width: 0; }

.app-dropdown-btn { width: 100%; min-width: 0; justify-content: space-between; text-align: left; }

.app-dropdown-btn .lang-btn-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; text-align: left; }

.app-dropdown-btn .fa-chevron-down { flex: none; }

.app-dropdown-list { left: 0; right: auto; min-width: 100%; width: max-content; max-width: 280px; }

.login-topbar { position: fixed; top: 22px; right: 26px; z-index: 10; display: flex; align-items: center; gap: 10px; }

.login-lang { position: static; z-index: 10; }

.app-loading { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 56px 20px; font-size: 13.5px; letter-spacing: 0.5px; }

.app-loading i { font-size: 18px; }
/* ===== 通用右键菜单（列表行上下文操作） ===== */
.ctx-menu { position: fixed; z-index: 999; min-width: 150px; padding: 5px; border-radius: var(--radius-md); display: flex; flex-direction: column; opacity: 0; transform: scale(0.96); transition: opacity var(--dur-fast) var(--ease-silk), transform var(--dur-fast) var(--ease-silk); }

.ctx-menu.open { opacity: 1; transform: scale(1); }

.ctx-menu-item { display: flex; align-items: center; gap: 8px; padding: 7px 11px; border-radius: var(--radius-sm); font-size: 12.5px; cursor: pointer; white-space: nowrap; transition: background var(--dur-fast) var(--ease-silk), color var(--dur-fast) var(--ease-silk); }

.ctx-menu-item i { width: 14px; text-align: center; font-size: 12px; opacity: 0.85; }

.ctx-menu-sep { height: 1px; margin: 4px 8px; }