/* ============================================================
   theme-balong — 哪吒面板 v1 user-dist 主题
   设计令牌与 balong.in 个人主页保持一致
   架构参考: fl0w1nd/Lotus · hamster1963/nezha-dash-v1
   注意: 静态资源不使用 content hash 文件名（哪吒静态服务无
   Cache-Control，hash 文件名更新后会导致旧缓存白屏）
============================================================ */

/* ============================================================
   Design Tokens
============================================================ */
:root {
    --transition-fast: 0.2s;
    --transition-base: 0.3s;
    --transition-slow: 0.4s;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

    --bg: #f7f7f2;
    --bg-dots: rgba(28, 34, 38, 0.10);
    --surface: rgba(255, 255, 255, 0.60);
    --surface-strong: rgba(255, 255, 255, 0.82);
    --surface-hover: rgba(255, 255, 255, 0.92);
    --text: #273136;
    --heading: #172126;
    --muted: #6f7b82;
    --faint: #9aa4aa;
    --border: rgba(39, 49, 54, 0.13);
    --accent: #10b981;
    --accent-2: #0ea5e9;
    --accent-soft: rgba(16, 185, 129, 0.12);
    --shadow: 0 18px 44px -30px rgba(23, 33, 38, 0.35);
    --spotlight: rgba(16, 185, 129, 0.07);

    --ok: #10b981;
    --warn: #f59e0b;
    --danger: #ef4444;
    --ok-soft: rgba(16, 185, 129, 0.14);
    --warn-soft: rgba(245, 158, 11, 0.14);
    --danger-soft: rgba(239, 68, 68, 0.12);
    --track: rgba(39, 49, 54, 0.09);
}

.dark {
    --bg: #1f2326;
    --bg-dots: rgba(160, 174, 184, 0.12);
    --surface: rgba(35, 40, 43, 0.62);
    --surface-strong: rgba(38, 44, 47, 0.90);
    --surface-hover: rgba(46, 53, 56, 0.95);
    --text: #c9d1d9;
    --heading: #eef3f5;
    --muted: #8b949e;
    --faint: #66727b;
    --border: rgba(225, 235, 240, 0.10);
    --accent: #18c58f;
    --accent-2: #38bdf8;
    --accent-soft: rgba(24, 197, 143, 0.12);
    --shadow: 0 24px 60px -34px rgba(0, 0, 0, 0.7);
    --spotlight: rgba(24, 197, 143, 0.06);

    --ok: #18c58f;
    --track: rgba(225, 235, 240, 0.08);
}

/* ============================================================
   Base
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    position: relative;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.6s cubic-bezier(0.4, 0, 0.2, 1), color 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }

.mono, .mono-tag { font-family: "JetBrains Mono", monospace; }

/* ============================================================
   Background Layers
============================================================ */
.bg-dots {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image: radial-gradient(var(--bg-dots) 1px, transparent 1px);
    background-size: 26px 26px;
    opacity: 0.52;
    transition: opacity 0.7s;
}

.bg-glow {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(circle at 16% 16%, var(--accent-soft) 0%, transparent 34%),
        radial-gradient(circle at 86% 84%, rgba(16, 185, 129, 0.06) 0%, transparent 38%);
    transition: opacity 0.5s;
}

/* 鼠标跟随光晕 */
.spotlight {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.6s;
    background: radial-gradient(560px circle at var(--mx, 50%) var(--my, 40%), var(--spotlight), transparent 70%);
}
.spotlight.active { opacity: 1; }

/* 动态自定义背景层 */
#custom-bg {
    position: fixed;
    inset: 0;
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    background-size: cover;
    background-position: center;
    transition: opacity 1s;
}

body.wallpaper-mode #custom-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(247, 247, 242, 0.22), rgba(247, 247, 242, 0.22)),
        radial-gradient(ellipse at 50% 35%, rgba(255,255,255,0.20) 0%, transparent 65%);
    z-index: 1;
}
.dark body.wallpaper-mode #custom-bg::after {
    background:
        linear-gradient(rgba(0, 0, 0, 0.24), rgba(0, 0, 0, 0.24)),
        radial-gradient(ellipse at 50% 30%, rgba(0,0,0,0.16) 0%, rgba(0,0,0,0.30) 100%);
}

body.wallpaper-mode .protect-text {
    text-shadow: 0 1px 2px rgba(255,255,255,0.38), 0 2px 10px rgba(255,255,255,0.26);
}
.dark body.wallpaper-mode .protect-text {
    text-shadow: 0 1px 2px rgba(0,0,0,0.55), 0 2px 12px rgba(0,0,0,0.42);
}

/* ============================================================
   Header
============================================================ */
.site-header {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: clamp(30px, 6vh, 60px) 24px 0;
}

.header-inner {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    position: relative;
    padding-left: 24px;
}

.header-inner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    width: 1px;
    height: min(100%, 132px);
    background: linear-gradient(to bottom, var(--accent), var(--border) 62%, transparent);
}

.header-brand {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 22px;
    align-items: center;
    min-width: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 20px;
}

.avatar-shell {
    width: 104px;
    height: 104px;
    position: relative;
    border-radius: 26px;
    padding: 4px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    border: none;
    box-shadow: 0 14px 34px -16px rgba(16, 185, 129, 0.50), var(--shadow);
    transition: transform var(--transition-base) var(--ease-out), box-shadow var(--transition-base);
}
.avatar-shell:hover {
    transform: rotate(-3deg) scale(1.04);
    box-shadow: 0 18px 40px -16px rgba(16, 185, 129, 0.60), var(--shadow);
}

.brand-logo {
    position: absolute;
    inset: 4px;
    width: calc(100% - 8px);
    height: calc(100% - 8px);
    display: block;
    border-radius: 20px;
    object-fit: cover;
    z-index: 1;
}

.brand-logo-fallback {
    position: absolute;
    inset: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    color: #fff;
    background: linear-gradient(135deg, #0f8f6f 0%, #18c58f 100%);
    font-weight: 700;
    font-size: 1.5rem;
}

.status-dot, .status-ping {
    position: absolute;
    right: -4px;
    bottom: -4px;
    width: 15px;
    height: 15px;
    border-radius: 999px;
    background: var(--accent);
}
.status-dot { border: 2.5px solid var(--bg); z-index: 2; }
.status-ping { opacity: 0.45; pointer-events: none; animation: ping 1.6s cubic-bezier(0, 0, 0.2, 1) infinite; }

.status-dot.offline, .status-ping.offline { background: var(--danger); }
.status-ping.offline { animation: none; opacity: 0; }

@keyframes ping {
    0% { transform: scale(1); opacity: 0.45; }
    75%, 100% { transform: scale(2.1); opacity: 0; }
}

.eyebrow {
    color: var(--accent);
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    line-height: 1.45;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.profile-title h1 {
    color: var(--heading);
    font-size: clamp(1.85rem, 4.2vw, 2.85rem);
    line-height: 1.06;
    font-weight: 700;
    letter-spacing: -0.048em;
}

.profile-title h1 .name {
    background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 45%, var(--accent) 100%);
    background-size: 220% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--accent);
    animation: nameGradientScroll 5.5s linear infinite;
}
@keyframes nameGradientScroll {
    to { background-position: 220% center; }
}

.tagline {
    max-width: 26em;
    margin-top: 12px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    min-height: 1.8em;
}
.tagline .caret {
    display: inline-block;
    width: 2px;
    height: 1em;
    margin-left: 2px;
    vertical-align: -0.12em;
    background: var(--accent);
    animation: caretBlink 1s step-end infinite;
}
@keyframes caretBlink { 50% { opacity: 0; } }

/* ============================================================
   Controls
============================================================ */
.control-btn {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 10px;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast) var(--ease-out);
}
.control-btn svg { width: 20px; height: 20px; }
.control-btn:hover {
    color: var(--accent);
    background: var(--accent-soft);
    border-color: rgba(16, 185, 129, 0.18);
    transform: translateY(-2px);
}
.control-btn:active { transform: translateY(0) scale(0.96); }

/* ============================================================
   Overview Stats
============================================================ */
.overview-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.stat-chip {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 9px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-fast) var(--ease-out);
}
.stat-chip:hover {
    background: var(--surface-hover);
    border-color: rgba(16, 185, 129, 0.20);
    transform: translateY(-1px);
}

.stat-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--faint);
}

.stat-value {
    font-size: 13px;
    font-weight: 600;
    color: var(--heading);
    font-variant-numeric: tabular-nums;
}
.stat-value em { font-style: normal; }
.stat-value em.accent { color: var(--accent); }
.stat-value i { font-style: normal; color: var(--faint); margin: 0 1px; }

/* ============================================================
   Main / Group Tabs
============================================================ */
.main {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 26px 24px 28px;
    flex: 1;
}

.group-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.group-tab {
    padding: 7px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    font-size: 12.5px;
    font-weight: 500;
    transition: all var(--transition-fast) var(--ease-out);
}
.group-tab .tab-count {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    color: var(--faint);
    margin-left: 6px;
}
.group-tab:hover {
    color: var(--accent);
    border-color: rgba(16, 185, 129, 0.25);
    background: var(--accent-soft);
}
.group-tab.active {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
}
.group-tab.active .tab-count { color: rgba(255,255,255,0.75); }

/* ============================================================
   Server Grid / Cards
============================================================ */
.server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 14px;
    width: 100%;
}

.grid-placeholder {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 72px 0;
    color: var(--faint);
    font-family: "JetBrains Mono", monospace;
    font-size: 12.5px;
}
.loader-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    margin: 0 3px;
    border-radius: 999px;
    background: var(--accent);
    animation: loaderBounce 1.2s ease-in-out infinite;
}
.loader-dot:nth-child(2) { animation-delay: 0.15s; }
.loader-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes loaderBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-7px); opacity: 1; }
}

/* 服务器卡片 — 复用主页 site-link 卡片语言 */
.server-card {
    min-width: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    color: var(--text);
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
    transition: background var(--transition-base) var(--ease-out), border-color var(--transition-base), transform var(--transition-fast) var(--ease-out), box-shadow var(--transition-base);
}
.dark .server-card {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

/* 卡片内部流光 */
.server-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.14) 48%, transparent 62%);
    transform: translateX(-110%);
    transition: transform 0.7s var(--ease-out);
    pointer-events: none;
}
.dark .server-card::after {
    background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.06) 48%, transparent 62%);
}
.server-card:hover::after { transform: translateX(110%); }

.server-card:hover {
    background: var(--surface-hover);
    border-color: rgba(16, 185, 129, 0.20);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.server-card.is-offline {
    border-color: rgba(239, 68, 68, 0.18);
}
.server-card.is-offline:hover {
    border-color: rgba(239, 68, 68, 0.32);
}

.card-head {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.server-status-dot {
    flex: 0 0 auto;
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--ok);
    box-shadow: 0 0 0 3px var(--ok-soft);
    animation: statusBreath 2.4s ease-in-out infinite;
}
@keyframes statusBreath {
    0%, 100% { box-shadow: 0 0 0 3px var(--ok-soft); }
    50% { box-shadow: 0 0 0 6px transparent; }
}
.server-status-dot.offline {
    background: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-soft);
    animation: none;
}
.server-status-dot.warn {
    background: var(--warn);
    box-shadow: 0 0 0 3px var(--warn-soft);
    animation: none; /* 呼吸帧写死了绿色光环，告警色点必须停掉 */
}
.server-status-dot.danger {
    background: var(--danger);
    box-shadow: 0 0 0 3px var(--danger-soft);
    animation: dangerPulse 1.2s ease-in-out infinite;
}
@keyframes dangerPulse {
    0%, 100% { box-shadow: 0 0 0 3px var(--danger-soft); }
    50% { box-shadow: 0 0 0 6px transparent; }
}

.card-name {
    color: var(--heading);
    font-size: 14.5px;
    font-weight: 700;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-title {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.card-sub {
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    letter-spacing: 0.02em;
    color: var(--faint);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 离线卡片：指标降饱和，保留可读性 */
.server-card.is-offline .metrics,
.server-card.is-offline .card-spark {
    opacity: 0.45;
    filter: grayscale(0.7);
}
.server-card.is-offline .card-name { color: var(--muted); }

.card-flags {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
}

.country-flag { font-size: 15px; line-height: 1; }

.mono-tag {
    padding: 2px 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    font-size: 10.5px;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

/* 指标行 */
.metrics {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.metric-row {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr) 64px;
    align-items: center;
    gap: 10px;
}

.metric-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    letter-spacing: 0.05em;
    color: var(--faint);
}

.metric-value {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color 0.4s;
}
.metric-value.warn { color: var(--warn); }
.metric-value.danger { color: var(--danger); }

.progress-track {
    position: relative;
    height: 6px;
    border-radius: 999px;
    background: var(--track);
    overflow: hidden;
}

.progress-bar {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 130%);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.35);
    transition: width 0.9s var(--ease-out), background-color 0.4s, box-shadow 0.4s;
}
.progress-bar.warn {
    background: linear-gradient(90deg, var(--warn) 0%, #fbbf24 130%);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.35);
}
.progress-bar.danger {
    background: linear-gradient(90deg, var(--danger) 0%, #f87171 130%);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.40);
}

/* 卡片实时网速曲线 */
.card-spark {
    width: 100%;
    height: 38px;
    display: block;
    border-radius: 10px;
    background: var(--track);
    overflow: hidden;
}

/* 底部 4 格统计 */
.card-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}

.cs {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}
.cs-k {
    font-family: "JetBrains Mono", monospace;
    font-size: 9.5px;
    letter-spacing: 0.07em;
    color: var(--faint);
    white-space: nowrap;
}
.cs-v {
    font-family: "JetBrains Mono", monospace;
    font-size: 11.5px;
    font-weight: 500;
    color: var(--heading);
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.cs-v.cs-in { color: var(--accent-2); }
.cs-v.cs-out { color: var(--accent); }

/* 概览全局吞吐曲线 */
.overview-chart {
    margin-top: 14px;
    padding: 14px 18px 8px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background var(--transition-base), border-color var(--transition-base);
}
.overview-chart:hover {
    background: var(--surface-hover);
    border-color: rgba(16, 185, 129, 0.20);
}

.oc-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 4px;
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    letter-spacing: 0.06em;
    color: var(--faint);
}
.oc-legend { display: inline-flex; align-items: center; white-space: nowrap; }
.lg {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    margin: 0 5px 0 12px;
}
.lg.in { background: var(--accent-2); }
.lg.out { background: var(--accent); }

#total-spark { width: 100%; height: 56px; display: block; }

/* ============================================================
   Modal 详情弹窗
============================================================ */
.modal-mask {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(23, 33, 38, 0.36);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base) var(--ease-out);
}
.dark .modal-mask { background: rgba(0, 0, 0, 0.5); }
.modal-mask.show { opacity: 1; pointer-events: auto; }

/* 壁纸模式下弹窗同样玻璃化，与卡片层级一致 */
body.wallpaper-mode .modal { background: rgba(255, 255, 255, 0.62); }
.dark body.wallpaper-mode .modal { background: rgba(34, 39, 42, 0.66); }

/* 弹窗内部磁贴同步玻璃化（SYSTEM/RUNTIME 小块、监控卡、网速图卡） */
body.wallpaper-mode .detail-item,
body.wallpaper-mode .monitor-item,
body.wallpaper-mode .modal-net-chart {
    background: rgba(255,255,255,0.30);
    border-color: rgba(255,255,255,0.52);
    backdrop-filter: blur(14px) saturate(150%);
    -webkit-backdrop-filter: blur(14px) saturate(150%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.35);
}
body.wallpaper-mode .detail-item:hover,
body.wallpaper-mode .monitor-item:hover {
    background: rgba(255,255,255,0.46);
    border-color: rgba(16,185,129,0.32);
}
body.wallpaper-mode .modal-net-chart svg,
body.wallpaper-mode .monitor-chart {
    background: rgba(255,255,255,0.16);
}
.dark body.wallpaper-mode .detail-item,
.dark body.wallpaper-mode .monitor-item,
.dark body.wallpaper-mode .modal-net-chart {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.10);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.dark body.wallpaper-mode .detail-item:hover,
.dark body.wallpaper-mode .monitor-item:hover {
    background: rgba(255,255,255,0.09);
    border-color: rgba(24,197,143,0.28);
}
.dark body.wallpaper-mode .modal-net-chart svg,
.dark body.wallpaper-mode .monitor-chart {
    background: rgba(255,255,255,0.04);
}

.modal {
    width: 100%;
    max-width: 620px;
    max-height: min(84vh, 720px);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface-strong);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    box-shadow: var(--shadow);
    transform: scale(0.95) translateY(8px);
    transition: transform var(--transition-base) var(--ease-out);
    overflow: hidden;
}
.modal-mask.show .modal { transform: scale(1) translateY(0); }

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--border);
}

.modal-title-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}
.modal-title-wrap h2 {
    color: var(--heading);
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.modal-body {
    padding: 18px 20px 22px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 18px;
    scrollbar-width: thin;
    scrollbar-color: var(--track) transparent;
}
.modal-body::-webkit-scrollbar { width: 6px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb { background: var(--track); border-radius: 999px; }
.modal-body::-webkit-scrollbar-thumb:hover { background: var(--faint); }

.detail-section-title {
    color: var(--accent);
    font-family: "JetBrains Mono", monospace;
    font-size: 11.5px;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 18px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    transition: border-color var(--transition-fast), background var(--transition-fast);
}
.detail-item:hover {
    border-color: rgba(16, 185, 129, 0.20);
    background: var(--surface-hover);
}
.detail-item .dk {
    font-family: "JetBrains Mono", monospace;
    font-size: 10.5px;
    letter-spacing: 0.05em;
    color: var(--faint);
}
.detail-item .dv {
    font-size: 13px;
    font-weight: 500;
    color: var(--heading);
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 弹窗级实时网速曲线 */
.modal-net-chart {
    padding: 10px 12px 6px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
}
.modal-net-chart svg {
    width: 100%;
    height: 64px;
    display: block;
    border-radius: 8px;
    background: var(--track);
    overflow: hidden;
}

/* ping 监控曲线 */
.monitor-item {
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--surface);
    margin-bottom: 10px;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}
.monitor-item:hover {
    border-color: rgba(16, 185, 129, 0.22);
    background: var(--surface-hover);
}
.monitor-item:last-child { margin-bottom: 0; }
.monitor-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}
.monitor-name {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--heading);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.monitor-avg {
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    color: var(--muted);
    white-space: nowrap;
}
.monitor-chart {
    width: 100%;
    height: 52px;
    display: block;
    border-radius: 8px;
    background: var(--track);
    overflow: hidden;
}
.spark-max {
    font-family: "JetBrains Mono", monospace;
    font-size: 8.5px;
    letter-spacing: 0.02em;
    fill: var(--muted);
    paint-order: stroke;
    stroke: var(--surface-strong);
    stroke-width: 3px;
}

.modal-empty {
    padding: 22px 0;
    text-align: center;
    color: var(--faint);
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
}

/* ============================================================
   Reconnect Bar
============================================================ */
.reconnect-bar {
    position: fixed;
    top: 14px;
    left: 50%;
    transform: translateX(-50%) translateY(-64px);
    z-index: 300;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 18px;
    border-radius: 999px;
    border: 1px solid rgba(245, 158, 11, 0.35);
    background: var(--surface-strong);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--warn);
    font-size: 12.5px;
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: transform var(--transition-base) var(--ease-out);
}
.reconnect-bar.show { transform: translateX(-50%) translateY(0); }

.reconnect-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--warn);
    animation: statusBreath 1.6s ease-in-out infinite;
}

/* ============================================================
   Footer
============================================================ */
.footer {
    position: relative;
    z-index: 10;
    width: 100%;
    text-align: center;
    padding: 30px 0 30px;
    transition: opacity 0.7s;
}
.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    color: var(--faint);
}
.footer-clock { letter-spacing: 0.08em; color: var(--muted); font-variant-numeric: tabular-nums; }
.footer-kbd { opacity: 0.75; }
.footer-kbd kbd {
    display: inline-block;
    padding: 1px 5px;
    margin: 0 1px;
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: 5px;
    background: var(--surface);
    font-family: inherit;
    font-size: 11px;
    color: var(--muted);
}

/* ============================================================
   Entrance Animations
============================================================ */
.fade-in-up {
    animation: fadeInUp 0.8s var(--ease-out) forwards;
    opacity: 0;
    transform: translateY(15px);
}
@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }

.card-enter {
    animation: cardEnter 0.55s var(--ease-out) forwards;
    opacity: 0;
    transform: translateY(12px);
}
@keyframes cardEnter { to { opacity: 1; transform: translateY(0); } }

/* ============================================================
   Toast
============================================================ */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--surface-strong);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--heading);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    z-index: 400;
    transition: all var(--transition-base) var(--ease-out);
    white-space: nowrap;
    box-shadow: var(--shadow);
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ============================================================
   Focus / A11y
============================================================ */
.focus-ring:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 6px;
}

.server-card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}
.server-card:focus:not(:focus-visible) { outline: none; }

.pause-animations * { animation-play-state: paused !important; }

/* 不支持 backdrop-filter 的环境（老浏览器/弱设备）：回退为实色，保证可读 */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
    .server-card, .stat-chip, .overview-chart, .modal, .toast, .reconnect-bar, .group-tab {
        background: var(--surface-strong);
    }
    body.wallpaper-mode .server-card,
    body.wallpaper-mode .stat-chip,
    body.wallpaper-mode .overview-chart,
    body.wallpaper-mode .group-tab,
    body.wallpaper-mode .detail-item,
    body.wallpaper-mode .monitor-item,
    body.wallpaper-mode .modal-net-chart {
        background: rgba(255, 255, 255, 0.94);
    }
    .dark body.wallpaper-mode .server-card,
    .dark body.wallpaper-mode .stat-chip,
    .dark body.wallpaper-mode .overview-chart,
    .dark body.wallpaper-mode .group-tab,
    .dark body.wallpaper-mode .detail-item,
    .dark body.wallpaper-mode .monitor-item,
    .dark body.wallpaper-mode .modal-net-chart {
        background: rgba(30, 35, 38, 0.94);
    }
}

@media (prefers-reduced-motion: reduce) {
    .fade-in-up, .card-enter { animation: none; opacity: 1; transform: none; }
    .status-ping, .tagline .caret, .profile-title h1 .name,
    .server-status-dot, .reconnect-dot, .loader-dot { animation: none; }
    .server-card::after { display: none; }
    .control-btn, .server-card, .toast, .avatar-shell, .modal, .modal-mask { transition: none; }
}

/* ============================================================
   Wallpaper Mode Overrides
============================================================ */
body.wallpaper-mode .server-card,
body.wallpaper-mode .stat-chip,
body.wallpaper-mode .overview-chart {
    background: rgba(255,255,255,0.40);
    border-color: rgba(255,255,255,0.50);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.40), 0 10px 28px -20px rgba(23,33,38,0.30);
}
body.wallpaper-mode .server-card:hover,
body.wallpaper-mode .stat-chip:hover,
body.wallpaper-mode .overview-chart:hover {
    background: rgba(255,255,255,0.56);
    border-color: rgba(16,185,129,0.35);
}
/* 壁纸模式可读性：次级文字加深 + 头部文字浅色光晕 */
body.wallpaper-mode {
    --muted: #54616a;
    --faint: #68757e;
}
body.wallpaper-mode .tagline,
body.wallpaper-mode .eyebrow {
    text-shadow: 0 1px 10px rgba(255,255,255,0.55), 0 0 3px rgba(255,255,255,0.45);
}
body.wallpaper-mode .card-name,
body.wallpaper-mode .cs-v,
body.wallpaper-mode .stat-value {
    text-shadow: 0 1px 6px rgba(255,255,255,0.35);
}
body.wallpaper-mode .group-tab {
    border-color: rgba(255,255,255,0.50);
    background: rgba(255,255,255,0.30);
    backdrop-filter: blur(12px) saturate(140%);
    -webkit-backdrop-filter: blur(12px) saturate(140%);
}
body.wallpaper-mode .group-tab.active {
    background: var(--accent);
    border-color: var(--accent);
}
body.wallpaper-mode .mono-tag { background: rgba(255,255,255,0.42); border-color: rgba(255,255,255,0.50); }
body.wallpaper-mode .card-spark { background: rgba(255,255,255,0.20); }
body.wallpaper-mode .footer-inner {
    width: fit-content;
    margin: 0 auto;
    padding: 10px 22px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.45);
    background: rgba(255, 255, 255, 0.50);
    backdrop-filter: blur(18px) saturate(150%);
    -webkit-backdrop-filter: blur(18px) saturate(150%);
    color: #4d5a61;
}
body.wallpaper-mode .footer-clock { color: #3f4c53; }
body.wallpaper-mode .footer-kbd kbd {
    color: #4d5a61;
    background: rgba(255,255,255,0.55);
    border-color: rgba(39,49,54,0.14);
}

.dark body.wallpaper-mode .server-card,
.dark body.wallpaper-mode .stat-chip,
.dark body.wallpaper-mode .overview-chart {
    background: rgba(24, 28, 31, 0.50);
    border-color: rgba(255,255,255,0.12);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.07), 0 14px 34px -22px rgba(0,0,0,0.55);
}
.dark body.wallpaper-mode .server-card:hover,
.dark body.wallpaper-mode .stat-chip:hover,
.dark body.wallpaper-mode .overview-chart:hover {
    background: rgba(28, 33, 36, 0.66);
    border-color: rgba(24,197,143,0.30);
}
/* 暗色壁纸可读性：亮文字加深色光晕，压住壁图亮部 */
.dark body.wallpaper-mode .tagline { color: #d3dce1; }
.dark body.wallpaper-mode .tagline,
.dark body.wallpaper-mode .eyebrow,
.dark body.wallpaper-mode .card-name,
.dark body.wallpaper-mode .cs-v,
.dark body.wallpaper-mode .stat-value,
.dark body.wallpaper-mode .metric-value {
    text-shadow: 0 1px 8px rgba(0,0,0,0.62), 0 0 3px rgba(0,0,0,0.50);
}
.dark body.wallpaper-mode .group-tab {
    border-color: rgba(255,255,255,0.20);
    color: #e2e9ee;
    background: rgba(24,28,31,0.38);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
}
.dark body.wallpaper-mode .group-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.dark body.wallpaper-mode .mono-tag { background: rgba(24,28,31,0.45); border-color: rgba(255,255,255,0.14); color: #ccd6dc; }
.dark body.wallpaper-mode .card-spark { background: rgba(255,255,255,0.05); }
.dark body.wallpaper-mode .footer-inner {
    background: rgba(24, 28, 31, 0.48);
    border-color: rgba(255,255,255,0.12);
    color: #b8c3ca;
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
}
.dark body.wallpaper-mode .footer-clock { color: #d3dce1; }
.dark body.wallpaper-mode .footer-kbd kbd {
    color: #c3ced4;
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.14);
}

/* ============================================================
   Responsive
============================================================ */
@media (max-width: 860px) {
    .site-header { max-width: 48rem; }
    .main { max-width: 48rem; }
    .server-grid { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
}

@media (max-width: 640px) {
    .site-header { padding-top: 34px; }
    .header-inner { padding-left: 18px; }
    .header-brand { grid-template-columns: 68px minmax(0, 1fr); gap: 16px; }
    .avatar-shell { width: 68px; height: 68px; border-radius: 18px; padding: 3px; }
    .brand-logo { inset: 3px; width: calc(100% - 6px); height: calc(100% - 6px); border-radius: 13px; }
    .brand-logo-fallback { inset: 3px; border-radius: 13px; font-size: 1.2rem; }
    .status-dot, .status-ping { width: 13px; height: 13px; }
    .profile-title h1 { font-size: clamp(1.6rem, 8vw, 2.1rem); letter-spacing: -0.04em; }
    .tagline { font-size: 13px; }
    .overview-row { gap: 8px; }
    .stat-chip { padding: 7px 13px; }
    .server-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .footer-kbd { display: none; }
}

@media (max-width: 420px) {
    .site-header, .main { padding-left: 16px; padding-right: 16px; }
    .header-inner { padding-left: 0; }
    .header-inner::before { display: none; }
    .header-controls { flex-direction: column; padding-top: 0; }
    .card-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 10px; }
}