/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease, font-size 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

/* ===== 风格变量 ===== */
:root {
    --bg-body: #050a1a;
    --bg-container: #030712;
    --bg-panel: #081028;
    --bg-glass: rgba(8, 20, 48, 0.7);
    --bg-card: rgba(8, 20, 48, 0.5);
    --bg-nav: #08122a;
    --border-glow: #00e5ff;
    --border-subtle: rgba(0, 229, 255, 0.3);
    --text-primary: #e6f7ff;
    --text-secondary: #7aa9ff;
    --text-muted: rgba(0, 229, 255, 0.3);
    --shadow-neon: 0 0 30px rgba(0, 102, 255, 0.3);
    --shadow-inset: inset 0 0 20px rgba(0, 229, 255, 0.15);
    --shadow-side: 5px 0 15px rgba(0, 102, 255, 0.3);
    --shadow-nav: 0 0 20px var(--border-glow), 0 4px 10px rgba(0,0,0,0.7);
    --shadow-content: inset 0 0 40px rgba(0, 102, 255, 0.1);
    --btn-bg: rgba(8, 20, 48, 0.7);
    --file-bg: rgba(8, 20, 48, 0.4);
    --card-border: rgba(0, 229, 255, 0.3);
    --scrollbar-thumb: #00e5ff;
    --scrollbar-track: #0a1532;
    --gradient-text: #00e5ff;
    --text-shadow-enabled: 0 0 8px var(--border-glow), 0 0 20px var(--border-glow);
    --text-shadow-sm: 0 0 3px var(--border-glow), 0 0 8px var(--border-glow);
    --text-shadow-xs: 0 0 2px var(--border-glow), 0 0 5px var(--border-glow);
    --text-shadow-md: 0 0 5px var(--border-glow), 0 0 10px var(--border-glow);
    --text-shadow-lg: 0 0 12px var(--border-glow), 0 0 25px var(--border-glow), 0 0 35px #fff;
    --text-shadow-quote: 0 0 10px var(--border-glow);
    --logo-shadow: drop-shadow(0 0 10px var(--border-glow)) drop-shadow(0 0 15px var(--border-glow));
    --logo-shadow-hover: drop-shadow(0 0 15px var(--border-glow)) drop-shadow(0 0 25px var(--border-glow));
    --logo-border: none;
    --logo-border-radius: 0;
    --logo-bg: transparent;
    --logo-padding: 0;
    --bg-overlay-show: block;
}

body.style-light {
    --bg-body: #f0f5ff;
    --bg-container: #e8edf8;
    --bg-panel: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --bg-card: rgba(255, 255, 255, 0.6);
    --bg-nav: #dce3f0;
    --border-glow: #3b82f6;
    --border-subtle: rgba(59, 130, 246, 0.25);
    --text-primary: #1e293b;
    --text-secondary: #2563eb;
    --text-muted: rgba(59, 130, 246, 0.4);
    --shadow-neon: none;
    --shadow-inset: none;
    --shadow-side: none;
    --shadow-nav: none;
    --shadow-content: none;
    --btn-bg: rgba(255, 255, 255, 0.7);
    --file-bg: rgba(255, 255, 255, 0.5);
    --card-border: rgba(59, 130, 246, 0.2);
    --scrollbar-thumb: #3b82f6;
    --scrollbar-track: #d1d9e6;
    --gradient-text: #3b82f6;
    --text-shadow-enabled: none;
    --text-shadow-sm: none;
    --text-shadow-xs: none;
    --text-shadow-md: none;
    --text-shadow-lg: none;
    --text-shadow-quote: none;
    --logo-shadow: drop-shadow(0 0 4px rgba(0,0,0,0.20));
    --logo-shadow-hover: drop-shadow(0 0 8px rgba(0,0,0,0.30));
    --logo-border: 2.5px solid #1a1a2e;
    --logo-border-radius: 12px;
    --logo-bg: rgba(255,255,255,0.9);
    --logo-padding: 4px;
    --bg-overlay-show: none;
}

body.style-dark {
    --bg-body: #0a0a0a;
    --bg-container: #0d0d0d;
    --bg-panel: #12121a;
    --bg-glass: rgba(10, 10, 20, 0.85);
    --bg-card: rgba(15, 15, 30, 0.6);
    --bg-nav: #0d0d1a;
    --border-glow: #4f8cff;
    --border-subtle: rgba(79, 140, 255, 0.2);
    --text-primary: #e2e8f0;
    --text-secondary: #7aa9ff;
    --text-muted: rgba(79, 140, 255, 0.3);
    --shadow-neon: none;
    --shadow-inset: none;
    --shadow-side: none;
    --shadow-nav: none;
    --shadow-content: none;
    --btn-bg: rgba(20, 20, 40, 0.7);
    --file-bg: rgba(15, 15, 30, 0.5);
    --card-border: rgba(79, 140, 255, 0.15);
    --scrollbar-thumb: #4f8cff;
    --scrollbar-track: #14141f;
    --gradient-text: #4f8cff;
    --text-shadow-enabled: none;
    --text-shadow-sm: none;
    --text-shadow-xs: none;
    --text-shadow-md: none;
    --text-shadow-lg: none;
    --text-shadow-quote: none;
    --logo-shadow: drop-shadow(0 0 6px rgba(255,255,255,0.10));
    --logo-shadow-hover: drop-shadow(0 0 12px rgba(255,255,255,0.20));
    --logo-border: 2.5px solid rgba(255, 255, 255, 0.85);
    --logo-border-radius: 12px;
    --logo-bg: rgba(0, 0, 0, 0.3);
    --logo-padding: 4px;
    --bg-overlay-show: none;
}

body {
    background: var(--bg-body);
}

body.font-light { --font-weight-base: 300; --font-weight-bold: 500; }
body.font-regular { --font-weight-base: 400; --font-weight-bold: 600; }
body.font-bold { --font-weight-base: 500; --font-weight-bold: 700; }

body.size-small { --font-size-base: 0.85rem; --font-size-h2: 1.8rem; --font-size-h3: 1.3rem; --font-size-p: 0.9rem; --font-size-nav: 13px; }
body.size-medium { --font-size-base: 1rem; --font-size-h2: 2.2rem; --font-size-h3: 1.6rem; --font-size-p: 1.05rem; --font-size-nav: 15px; }
body.size-large { --font-size-base: 1.15rem; --font-size-h2: 2.6rem; --font-size-h3: 1.9rem; --font-size-p: 1.2rem; --font-size-nav: 17px; }

.fixed-core p,
.cea-content p,
.module-card p,
.file-card .file-info .file-meta,
.file-card .file-info .file-source,
.core-quote,
.fixed-core .core-highlight p {
    font-weight: var(--font-weight-base, 400);
}
.core-logo span,
.fixed-core h2,
.cea-content h2,
.cea-content h3,
.module-card h4,
.file-card .file-info h4,
.nav-btn {
    font-weight: var(--font-weight-bold, 600);
}

.fixed-core p,
.core-quote,
.fixed-core .core-highlight p {
    font-size: var(--font-size-base, 0.98rem);
}
.fixed-core h2 { font-size: var(--font-size-h2, 1.8rem); }
.cea-content h2 { font-size: var(--font-size-h2, 2.2rem); }
.cea-content h3 { font-size: var(--font-size-h3, 1.6rem); }
.cea-content p { font-size: var(--font-size-p, 1.05rem); }
.nav-btn { font-size: var(--font-size-nav, 15px); }
.core-logo span { font-size: var(--font-size-h2, 1.7rem); }

/* ===== 布局 ===== */
.container {
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: var(--bg-container);
    box-shadow: var(--shadow-neon);
    position: relative;
    transition: background 0.3s, box-shadow 0.3s;
}

.fixed-core {
    width: 300px;
    background: var(--bg-panel);
    border-right: 2px solid var(--border-glow);
    padding: 28px 20px;
    overflow-y: auto;
    box-shadow: var(--shadow-inset), var(--shadow-side);
    backdrop-filter: blur(4px);
    scrollbar-width: thin;
    scrollbar-color: var(--border-glow) var(--scrollbar-track);
    flex-shrink: 0;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.fixed-core::-webkit-scrollbar {
    width: 8px;
    background: var(--scrollbar-track);
}
.fixed-core::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 20px;
}

.right-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-body);
    transition: background 0.3s;
}

.nav-top {
    height: 70px;
    background: var(--bg-nav);
    display: flex;
    align-items: center;
    padding: 0 25px;
    gap: 15px;
    border-bottom: 2px solid var(--border-glow);
    box-shadow: var(--shadow-nav);
    flex-shrink: 0;
    position: relative;
    z-index: 5;
    flex-wrap: wrap;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.nav-top::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-glow), var(--border-glow), transparent);
    filter: blur(2px);
    transition: background 0.3s;
}

.content-right {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    background: var(--bg-body);
    border-left: 1px solid var(--border-glow);
    box-shadow: var(--shadow-content);
    scroll-behavior: smooth;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

@media (max-width: 767px), (min-width: 768px) and (max-width: 1024px) and (orientation: portrait) {
    .container {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
        overflow: visible;
    }
    .fixed-core {
        width: 100%;
        border-right: none;
        border-bottom: 2px solid var(--border-glow);
        box-shadow: var(--shadow-neon);
    }
    .right-wrap {
        width: 100%;
        flex: none;
        overflow: visible;
    }
    .nav-top {
        width: 100%;
        flex-wrap: wrap;
        height: auto;
        min-height: 70px;
        padding: 12px 20px;
        border-bottom: 2px solid var(--border-glow);
        box-shadow: var(--shadow-nav);
    }
    .content-right {
        border-left: none;
        padding: 25px 20px;
        box-shadow: var(--shadow-content);
    }
}

/* ===== 通用组件 ===== */
.core-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--border-glow);
    transition: border-color 0.3s;
}
.core-logo img {
    height: 60px;
    width: auto;
    filter: var(--logo-shadow);
    transition: filter 0.3s, border 0.3s, border-radius 0.3s, background 0.3s, padding 0.3s;
    border: var(--logo-border);
    border-radius: var(--logo-border-radius);
    background: var(--logo-bg);
    padding: var(--logo-padding);
}
.core-logo img:hover {
    filter: var(--logo-shadow-hover);
}
.core-logo .site-title {
    font-size: 1.7rem;
    font-weight: bold;
    color: var(--gradient-text);
    letter-spacing: 1px;
    transition: color 0.3s;
}

.fixed-core h2 {
    margin-bottom: 15px;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-enabled);
    border-left: 6px solid var(--border-glow);
    padding-left: 16px;
    letter-spacing: 2px;
    position: relative;
    transition: color 0.3s, text-shadow 0.3s, border-color 0.3s;
}
.fixed-core h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 40px;
    height: 2px;
    background: var(--border-glow);
    filter: blur(2px);
    transition: background 0.3s;
}

.fixed-core p {
    line-height: 1.7;
    margin-bottom: 15px;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-sm);
    background: var(--bg-card);
    padding: 12px 16px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-subtle);
    transition: all 0.2s, background 0.3s, border-color 0.3s, color 0.3s, text-shadow 0.3s;
}
.fixed-core p:hover {
    border-color: var(--border-glow);
    transform: translateX(3px);
}

.core-highlight {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background: var(--bg-glass);
    border-radius: 30px;
    border: 1px solid var(--border-glow);
    transition: background 0.3s, border-color 0.3s;
}
.core-quote {
    font-style: italic;
    text-align: center;
    background: transparent !important;
    border: none !important;
    color: var(--border-glow) !important;
    text-shadow: var(--text-shadow-quote) !important;
}

.nav-btn {
    padding: 10px 22px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    transition: 0.25s ease;
    text-shadow: var(--text-shadow-enabled);
    white-space: nowrap;
    position: relative;
    z-index: 1;
    border-radius: 40px;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}
.nav-btn:hover, .nav-btn.active {
    color: #fff;
    text-shadow: var(--text-shadow-lg);
    transform: scale(1.08);
}
.nav-btn.active::before, .nav-btn:hover::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 100%; height: 100%;
    background: radial-gradient(circle, var(--border-glow) 0%, var(--border-glow) 70%, transparent);
    filter: blur(10px);
    z-index: -1;
    border-radius: 40px;
    pointer-events: none;
    opacity: 0.15;
    transition: opacity 0.3s;
}

.tab-panel { display: none; animation: fadeIn 0.3s ease-out; }
.tab-panel.active { display: block; }
@keyframes fadeIn {
    0% { opacity: 0.2; transform: translateY(5px); }
    100% { opacity: 1; transform: translateY(0); }
}

.cea-content h2 {
    margin-bottom: 25px;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-enabled);
    border-left: 6px solid var(--border-glow);
    padding-left: 20px;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.3s, text-shadow 0.3s, border-color 0.3s;
}
.cea-content h3 {
    margin: 30px 0 15px;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-md);
    transition: color 0.3s, text-shadow 0.3s;
}
.cea-content p {
    line-height: 1.8;
    margin-bottom: 18px;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-xs);
    background: var(--file-bg);
    padding: 14px 20px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-subtle);
    transition: all 0.25s, background 0.3s, border-color 0.3s, color 0.3s, text-shadow 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}
.cea-content p:hover {
    border-color: var(--border-glow);
    background: var(--bg-glass);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
    margin-top: 30px;
}
.module-card {
    background: var(--bg-glass);
    backdrop-filter: blur(4px);
    padding: 22px 20px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    transition: 0.3s cubic-bezier(0.2, 0.9, 0.4, 1), background 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
    cursor: default;
}
.module-card::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    background: var(--border-glow);
    border-radius: 22px;
    opacity: 0;
    z-index: -2;
    transition: opacity 0.3s;
    filter: blur(5px);
}
.module-card:hover {
    transform: translateY(-6px) scale(1.01);
    border-color: transparent;
}
.module-card:hover::before { opacity: 0.2; }
.module-card i {
    font-size: 34px;
    margin-bottom: 15px;
    color: var(--border-glow);
    filter: drop-shadow(0 0 10px var(--border-glow));
    transition: color 0.3s, filter 0.3s;
}
.module-card h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--border-glow);
    transition: color 0.3s;
}

.team-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--btn-bg);
    border-radius: 40px;
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border-subtle);
    transition: 0.25s, background 0.3s, border-color 0.3s, color 0.3s;
    backdrop-filter: blur(4px);
    margin: 5px;
    touch-action: manipulation;
    cursor: pointer;
}
.team-btn:hover {
    border-color: var(--border-glow);
    transform: translateY(-3px);
    background: var(--bg-glass);
}

.file-card {
    background: var(--bg-glass);
    backdrop-filter: blur(4px);
    padding: 18px 24px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    transition: 0.3s ease, background 0.3s, border-color 0.3s;
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 18px;
}
.file-card:hover {
    border-color: var(--border-glow);
    transform: translateX(6px);
    background: var(--bg-card);
}
.file-card i {
    font-size: 2.6rem;
    color: var(--border-glow);
    filter: drop-shadow(0 0 8px var(--border-glow));
    width: 48px;
    text-align: center;
    flex-shrink: 0;
    transition: color 0.3s, filter 0.3s;
}
.file-card .file-info {
    flex: 1;
}
.file-card .file-info h4 {
    color: var(--text-primary);
    font-size: 1.15rem;
    margin-bottom: 2px;
    text-shadow: var(--text-shadow-sm);
    transition: color 0.3s, text-shadow 0.3s;
}
.file-card .file-info .file-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: color 0.3s;
}
.file-card .file-info .file-source {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
    transition: color 0.3s;
}
.file-card .file-badge {
    color: var(--border-glow);
    font-size: 0.8rem;
    background: rgba(0, 229, 255, 0.1);
    padding: 6px 18px;
    border-radius: 40px;
    border: 1px solid var(--border-subtle);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    transition: 0.25s, color 0.3s, background 0.3s, border-color 0.3s;
    cursor: pointer;
    touch-action: manipulation;
}
.file-card .file-badge:hover {
    background: rgba(0, 229, 255, 0.2);
    color: #fff;
}
.file-card .file-badge i {
    font-size: 0.8rem;
    width: auto;
    filter: none;
    color: var(--border-glow);
}

::-webkit-scrollbar { width: 8px; background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 20px;
}

.container::after {
    content: '';
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    background: radial-gradient(circle at 20% 30%, var(--border-glow) 0%, transparent 50%),
                radial-gradient(circle at 90% 70%, var(--border-glow) 0%, transparent 55%),
                radial-gradient(circle at 40% 80%, var(--border-glow) 0%, transparent 60%);
    z-index: 999;
    mix-blend-mode: overlay;
    opacity: 0.04;
    transition: background 0.3s, opacity 0.3s;
    display: var(--bg-overlay-show);
}

@media (max-width: 420px) {
    .nav-btn { padding: 8px 14px; font-size: 12px; }
    .modules-grid { grid-template-columns: 1fr; }
    .file-card { flex-wrap: wrap; gap: 10px; }
    .file-card .file-badge { font-size: 0.7rem; padding: 4px 12px; }
}

.settings-toggle {
    margin-left: auto;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: 60px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: 0.2s;
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    gap: 6px;
    touch-action: manipulation;
}
.settings-toggle:hover {
    background: var(--border-glow);
    color: #fff;
    border-color: var(--border-glow);
}

.settings-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(6px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.25s ease;
}
.settings-overlay.open { display: flex; }

.settings-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-glow);
    border-radius: 32px;
    padding: 32px 36px;
    max-width: 520px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 30px 80px rgba(0,0,0,0.6);
    backdrop-filter: blur(20px);
    transition: background 0.3s, border-color 0.3s;
}
.settings-panel h2 {
    color: var(--text-primary);
    text-shadow: var(--text-shadow-enabled);
    font-size: 1.6rem;
    margin-bottom: 24px;
    border-left: 4px solid var(--border-glow);
    padding-left: 16px;
}
.settings-group {
    margin-bottom: 22px;
}
.settings-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 600;
}
.settings-group .options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.settings-group .opt-btn {
    padding: 6px 18px;
    border-radius: 60px;
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: 0.2s;
    backdrop-filter: blur(4px);
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}
.settings-group .opt-btn:hover {
    border-color: var(--border-glow);
}
.settings-group .opt-btn.active {
    background: var(--border-glow);
    color: #fff;
    border-color: var(--border-glow);
}
.settings-close {
    margin-top: 20px;
    padding: 10px 28px;
    background: var(--border-glow);
    border: none;
    border-radius: 60px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
    transition: 0.2s;
    width: 100%;
    touch-action: manipulation;
}
.settings-close:hover {
    opacity: 0.8;
    transform: scale(0.98);
}

/* ===== 通知弹窗 - 含最新 + 历史（手风琴） ===== */
.notice-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}
.notice-overlay.open { display: flex; }

.notice-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-glow);
    border-radius: 40px;
    max-width: 600px;
    width: 92%;
    max-height: 85vh;
    box-shadow: 0 40px 90px rgba(0,0,0,0.7);
    backdrop-filter: blur(16px);
    transition: background 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.notice-panel .notice-header {
    padding: 24px 28px 0 28px;
    flex-shrink: 0;
}
.notice-panel .notice-header h2 {
    color: var(--border-glow);
    text-shadow: var(--text-shadow-enabled);
    font-size: 1.35rem;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 12px 0;
    line-height: 1.4;
}
.notice-panel .notice-header h2 i {
    font-size: 1.4rem;
    flex-shrink: 0;
}

.notice-panel .notice-tabs {
    display: flex;
    gap: 8px;
    margin-top: 4px;
    border-bottom: 1px solid var(--border-subtle);
}
.notice-panel .notice-tab {
    padding: 8px 18px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: 0.25s;
    display: flex;
    align-items: center;
    gap: 6px;
    touch-action: manipulation;
    font-weight: 500;
    border-radius: 8px 8px 0 0;
}
.notice-panel .notice-tab:hover {
    color: var(--border-glow);
    background: var(--bg-card);
}
.notice-panel .notice-tab.active {
    color: var(--border-glow);
    border-bottom-color: var(--border-glow);
    background: var(--bg-card);
}
.notice-panel .notice-tab i {
    font-size: 0.85rem;
}

.notice-panel .notice-pane {
    display: none;
    padding: 16px 28px 12px 28px;
    overflow-y: auto;
    flex: 1;
    max-height: 48vh;
    scrollbar-width: thin;
    scrollbar-color: var(--border-glow) transparent;
}
.notice-panel .notice-pane.active {
    display: block;
}
.notice-panel .notice-pane::-webkit-scrollbar {
    width: 4px;
}
.notice-panel .notice-pane::-webkit-scrollbar-track {
    background: transparent;
}
.notice-panel .notice-pane::-webkit-scrollbar-thumb {
    background: var(--border-glow);
    border-radius: 10px;
}
.notice-panel .notice-pane p {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 4px 0;
    text-shadow: var(--text-shadow-xs);
    white-space: pre-wrap;
    word-wrap: break-word;
}
.notice-panel .notice-pane .update-date {
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.85;
    margin-top: 8px;
}
.notice-panel .notice-pane .section-title {
    color: var(--border-glow);
    font-weight: 600;
    margin-top: 10px;
    font-size: 0.95rem;
}
.notice-panel .notice-pane .update-item {
    padding-left: 12px;
    margin: 3px 0;
    font-size: 0.92rem;
}

/* ===== 历史通知时间轴 - 手风琴折叠 ===== */
.history-timeline {
    position: relative;
    padding-left: 20px;
    padding-top: 4px;
}
.history-timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(to bottom, var(--border-glow), transparent);
    opacity: 0.5;
    border-radius: 2px;
}

.history-card {
    position: relative;
    margin-bottom: 8px;
}

.history-dot {
    position: absolute;
    left: -20px;
    top: 12px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-glow);
    border: 2px solid var(--bg-panel);
    box-shadow: 0 0 8px var(--border-glow);
    z-index: 1;
    transition: 0.25s;
}

.history-content {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    overflow: hidden;
    transition: 0.25s;
}
.history-content:hover {
    border-color: var(--border-glow);
    background: var(--bg-glass);
}

.history-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    transition: 0.2s;
}
.history-head:hover {
    background: var(--bg-glass);
}

.history-head-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.version-tag {
    background: var(--border-glow);
    color: #fff;
    font-size: 0.7rem;
    padding: 2px 9px;
    border-radius: 20px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 0 6px rgba(0, 229, 255, 0.3);
    flex-shrink: 0;
}
.history-date {
    color: var(--text-secondary);
    font-size: 0.75rem;
    opacity: 0.8;
}
.history-title-inline {
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0.9;
}

.history-arrow {
    color: var(--text-secondary);
    font-size: 0.75rem;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.history-card.open .history-arrow {
    transform: rotate(180deg);
    color: var(--border-glow);
}

.history-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 14px;
}
.history-card.open .history-body {
    max-height: 400px;
    padding: 0 14px 12px 14px;
}

.history-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px dashed var(--border-subtle);
    padding-top: 8px;
}
.history-list li {
    color: var(--text-primary);
    font-size: 0.85rem;
    line-height: 1.65;
    opacity: 0.85;
    padding-left: 16px;
    position: relative;
    margin-bottom: 2px;
}
.history-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--border-glow);
    font-size: 0.7rem;
}

.notice-panel .notice-footer {
    padding: 12px 28px 24px 28px;
    flex-shrink: 0;
    border-top: 1px solid var(--border-subtle);
}
.notice-panel .notice-footer .notice-close {
    padding: 10px 28px;
    background: var(--border-glow);
    border: none;
    border-radius: 60px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    transition: 0.2s;
    width: 100%;
    letter-spacing: 1px;
    touch-action: manipulation;
}
.notice-panel .notice-footer .notice-close:hover {
    opacity: 0.8;
    transform: scale(0.97);
}

@media (max-width: 480px) {
    .notice-panel .notice-header {
        padding: 18px 18px 0 18px;
    }
    .notice-panel .notice-header h2 {
        font-size: 1.05rem;
    }
    .notice-panel .notice-pane {
        padding: 12px 18px 10px 18px;
        max-height: 45vh;
    }
    .notice-panel .notice-pane p {
        font-size: 0.88rem;
    }
    .notice-panel .notice-footer {
        padding: 10px 18px 18px 18px;
    }
    .notice-panel .notice-tab {
        padding: 6px 12px;
        font-size: 0.82rem;
    }
}

.notice-recall-btn {
    background: var(--border-glow);
    border: none;
    border-radius: 60px;
    color: #fff;
    padding: 10px 20px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: 0.2s;
    width: 100%;
    margin-top: 10px;
    touch-action: manipulation;
}
.notice-recall-btn:hover {
    opacity: 0.8;
    transform: scale(0.97);
}

/* ===== 其他板块样式 ===== */
.countdown-section {
    background: var(--bg-glass);
    backdrop-filter: blur(4px);
    padding: 28px 24px;
    border-radius: 30px;
    border: 2px solid var(--border-glow);
    margin: 30px 0 20px;
    text-align: center;
    transition: background 0.3s, border-color 0.3s;
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.15);
}
.countdown-section h3 {
    font-size: 1.8rem;
    color: var(--border-glow);
    text-shadow: var(--text-shadow-md);
    margin-bottom: 8px;
    letter-spacing: 2px;
}
.countdown-section .sub {
    color: var(--text-secondary);
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 16px;
}
.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}
.countdown-item {
    background: var(--bg-card);
    padding: 12px 18px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    min-width: 80px;
    backdrop-filter: blur(4px);
    transition: background 0.3s, border-color 0.3s;
}
.countdown-item .number {
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: var(--text-shadow-enabled);
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}
.countdown-item .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-top: 4px;
}
.countdown-ended {
    font-size: 2rem;
    color: var(--border-glow);
    text-shadow: var(--text-shadow-lg);
    padding: 20px 0;
}

.contact-group-card {
    background: var(--bg-glass);
    backdrop-filter: blur(4px);
    padding: 18px 22px;
    border-radius: 20px;
    border: 1px solid var(--border-subtle);
    margin-bottom: 14px;
    transition: all 0.25s, background 0.3s, border-color 0.3s;
    display: flex;
    align-items: center;
    gap: 16px;
}
.contact-group-card:hover {
    border-color: var(--border-glow);
    background: var(--bg-card);
    transform: translateX(4px);
}
.contact-group-card .group-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-glow);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
    flex-shrink: 0;
    background: var(--bg-card);
    transition: border-color 0.3s, box-shadow 0.3s;
}
.contact-group-card:hover .group-avatar {
    border-color: var(--border-glow);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
}
.contact-group-card .group-info {
    flex: 1;
}
.contact-group-card .group-info .group-name {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    text-shadow: var(--text-shadow-sm);
}
.contact-group-card .group-info .group-number {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 2px 0 4px;
}
.contact-group-card .group-info .group-desc {
    color: var(--text-primary);
    font-size: 0.92rem;
    opacity: 0.85;
    line-height: 1.5;
    text-shadow: var(--text-shadow-xs);
}
.contact-leadership {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px dashed var(--border-subtle);
}
.contact-leadership p {
    background: transparent !important;
    border: none !important;
    padding: 6px 0 !important;
    margin-bottom: 4px !important;
    display: flex !important;
    align-items: center;
    gap: 10px;
}
.contact-leadership p i {
    width: 28px;
    text-align: center;
    color: var(--border-glow);
}
.contact-leadership p:hover {
    transform: none !important;
    border-color: transparent !important;
}

/* ===== 悬浮球 ===== */
.fab-container {
    position: fixed;
    z-index: 9998;
    user-select: none;
    -webkit-user-select: none;
    cursor: grab;
    width: 60px;
    height: auto;
    touch-action: none;
}
.fab-container.dragging {
    cursor: grabbing;
}

.fab-main {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--border-glow);
    color: #fff;
    border: none;
    font-size: 1.8rem;
    cursor: grab;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.4);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), 
                background 0.3s, 
                border-color 0.3s,
                box-shadow 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    touch-action: none;
}
.fab-main:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 30px rgba(0, 229, 255, 0.6);
}
.fab-main.open {
    transform: rotate(45deg);
    background: var(--bg-panel);
    border: 2px solid var(--border-glow);
    color: var(--border-glow);
    box-shadow: 0 4px 25px rgba(0, 229, 255, 0.5);
}
.fab-main:active {
    cursor: grabbing;
}

body.style-light .fab-main {
    background: var(--border-glow);
    color: #fff;
}
body.style-light .fab-main.open {
    background: #fff;
    color: var(--border-glow);
    border-color: var(--border-glow);
}
body.style-dark .fab-main {
    background: var(--border-glow);
    color: #fff;
}
body.style-dark .fab-main.open {
    background: #1a1a2e;
    color: var(--border-glow);
    border-color: var(--border-glow);
}

.fab-menu {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 1;
    bottom: 70px;
    transform-origin: bottom center;
    transform: translateX(-50%) scale(0.8) translateY(10px);
}
.fab-menu.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) scale(1) translateY(0);
}
.fab-container.menu-down .fab-menu {
    bottom: auto;
    top: 70px;
    transform-origin: top center;
    transform: translateX(-50%) scale(0.8) translateY(-10px);
}
.fab-container.menu-down .fab-menu.open {
    transform: translateX(-50%) scale(1) translateY(0);
}

.fab-item {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--border-subtle);
    background: var(--bg-glass);
    backdrop-filter: blur(8px);
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    touch-action: manipulation;
    text-decoration: none;
    position: relative;
    flex-shrink: 0;
}
.fab-item:hover {
    transform: scale(1.15);
    border-color: var(--border-glow);
    background: var(--bg-card);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
}
.fab-item .tooltip {
    position: absolute;
    right: 58px;
    background: var(--bg-panel);
    color: var(--text-primary);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.7rem;
    white-space: nowrap;
    border: 1px solid var(--border-subtle);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    backdrop-filter: blur(8px);
    font-weight: 500;
    letter-spacing: 0.3px;
}
.fab-item:hover .tooltip {
    opacity: 1;
}
@media (max-width: 768px) {
    .fab-item .tooltip {
        display: none;
    }
}

.qa-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}
.qa-overlay.open {
    display: flex;
}

.qa-panel {
    background: var(--bg-panel);
    border: 2px solid var(--border-glow);
    border-radius: 32px;
    padding: 36px 40px;
    max-width: 560px;
    width: 92%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(20px);
    transition: background 0.3s, border-color 0.3s;
    position: relative;
}
.qa-panel h2 {
    color: var(--border-glow);
    text-shadow: var(--text-shadow-enabled);
    font-size: 1.6rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.qa-panel .qa-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    transition: 0.2s;
    touch-action: manipulation;
}
.qa-panel .qa-close:hover {
    color: var(--border-glow);
    transform: rotate(90deg);
}

.qa-item {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 16px 20px;
    margin-bottom: 14px;
    border: 1px solid var(--border-subtle);
    transition: 0.25s;
}
.qa-item:hover {
    border-color: var(--border-glow);
    background: var(--bg-glass);
}
.qa-item .q {
    color: var(--border-glow);
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.qa-item .q i {
    font-size: 0.9rem;
}
.qa-item .a {
    color: var(--text-primary);
    font-size: 0.92rem;
    margin-top: 6px;
    padding-left: 28px;
    opacity: 0.85;
    line-height: 1.6;
}

@media (max-width: 480px) {
    .fab-container {
        width: 52px;
    }
    .fab-main {
        width: 52px;
        height: 52px;
        font-size: 1.4rem;
    }
    .fab-item {
        width: 42px;
        height: 42px;
        font-size: 0.95rem;
    }
    .fab-menu {
        bottom: 62px;
    }
    .fab-container.menu-down .fab-menu {
        top: 62px;
    }
    .qa-panel {
        padding: 24px 20px;
    }
    .qa-panel h2 {
        font-size: 1.3rem;
    }
}