/* 团队简介标题 + 核心架构卡片（about / members 共用） */
.about-intro-title {
    margin: 0 0 20px 0;
    font-size: 24px;
    border-left: 4px solid #007bff;
    padding-left: 15px;
    color: #1e293b;
}

.about-l-shell {
    position: relative;
    margin: 0 0 28px 0;
    padding: 28px 22px 22px;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 28%, #ecfeff 55%, #fef3c7 88%, #fce7f3 100%);
    border: 1px solid rgba(14, 165, 233, 0.28);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.8) inset,
        0 12px 40px rgba(14, 165, 233, 0.12),
        0 4px 20px rgba(244, 114, 182, 0.08);
}
.about-l-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(14, 165, 233, 0.06) 1px, transparent 1px),
        linear-gradient(rgba(14, 165, 233, 0.06) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
    opacity: 1;
    animation: aboutLGridDrift 28s linear infinite;
}
@keyframes aboutLGridDrift {
    0% { transform: translate(0, 0); }
    100% { transform: translate(22px, 22px); }
}
.about-l-shell::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #38bdf8, #a78bfa, #fb7185, #38bdf8, transparent);
    background-size: 200% 100%;
    animation: aboutLScan 4s ease-in-out infinite;
    opacity: 0.9;
    pointer-events: none;
    border-radius: 20px 20px 0 0;
}
@keyframes aboutLScan {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
.about-l-inner { position: relative; z-index: 1; }
.about-l-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}
.about-l-head-title {
    margin: 0;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #0369a1;
}
.about-l-head-title span { color: #ea580c; }
.about-l-link-more {
    font-size: 13px;
    font-weight: 600;
    color: #0284c7;
    text-decoration: none;
    border: 1px solid rgba(14, 165, 233, 0.45);
    background: rgba(255, 255, 255, 0.65);
    padding: 6px 14px;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.about-l-link-more:hover {
    background: #fff;
    border-color: #0ea5e9;
    color: #0369a1;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.2);
}
.about-l-hero-tier {
    display: flex;
    justify-content: center;
    margin-bottom: 22px;
    padding-bottom: 22px;
    border-bottom: 1px solid rgba(14, 165, 233, 0.15);
}
.about-l-hero-col { text-align: center; min-width: 200px; }
.about-l-tier-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #b45309;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(251, 191, 36, 0.55);
    box-shadow: 0 4px 14px rgba(251, 191, 36, 0.15);
}
.about-l-tier-label--vice {
    color: #6d28d9;
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(167, 139, 250, 0.5);
    box-shadow: 0 4px 14px rgba(167, 139, 250, 0.12);
    letter-spacing: 0.08em;
}
.about-l-tier-label--admin {
    color: #0369a1;
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.12);
    letter-spacing: 0.08em;
}
.about-l-tier-label--tech {
    color: #047857;
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(52, 211, 153, 0.55);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.12);
    letter-spacing: 0.08em;
}
.about-l-secondary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
@media (max-width: 1024px) {
    .about-l-secondary { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .about-l-secondary { grid-template-columns: 1fr; }
}
.about-l-glass {
    padding: 18px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(14, 165, 233, 0.22);
    box-shadow: 0 8px 28px rgba(14, 165, 233, 0.08);
}
.about-l-glass .about-l-tier-label { margin-bottom: 14px; }
.about-l-people-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 18px;
    justify-content: flex-start;
    align-items: flex-start;
}
.about-l-hero-tier .about-l-people-row { justify-content: center; }
a.about-l-person {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    border-radius: 14px;
    transition: transform 0.25s ease, filter 0.25s ease;
}
a.about-l-person:focus-visible {
    outline: 2px solid #0ea5e9;
    outline-offset: 4px;
}
a.about-l-person--hero:hover { transform: translateY(-4px) scale(1.02); }
a.about-l-person--sub:hover { transform: translateY(-3px); }
a.about-l-person--chip:hover { transform: translateY(-2px); }
.about-l-avwrap {
    position: relative;
    border-radius: 50%;
    flex-shrink: 0;
}
.about-l-avwrap--hero::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid rgba(14, 165, 233, 0.55);
    box-shadow: 0 0 18px rgba(14, 165, 233, 0.35), 0 0 12px rgba(167, 139, 250, 0.2);
    animation: aboutLHeroRing 2.4s ease-in-out infinite;
    pointer-events: none;
}
@keyframes aboutLHeroRing {
    0%, 100% { opacity: 0.75; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.04); }
}
.about-l-avwrap--hero {
    width: 108px;
    height: 108px;
    margin-top: 8px;
}
.about-l-avwrap--sub { width: 64px; height: 64px; }
.about-l-avwrap--chip { width: 52px; height: 52px; }
.about-l-avatar {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #fff;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.2), 0 2px 8px rgba(236, 72, 153, 0.1);
    background: #e0f2fe;
}
.about-l-avatar--ph {
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #64748b;
    background: linear-gradient(145deg, #e0f2fe, #fae8ff);
    border: 2px solid rgba(14, 165, 233, 0.25);
    box-sizing: border-box;
}
.about-l-avwrap--hero .about-l-avatar--ph { font-size: 36px; }
.about-l-avwrap--sub .about-l-avatar--ph { font-size: 22px; }
.about-l-avwrap--chip .about-l-avatar--ph { font-size: 18px; }
.about-l-name {
    margin-top: 10px;
    font-weight: 700;
    line-height: 1.3;
    text-align: center;
    color: #0c4a6e;
    transition: color 0.2s;
}
.about-l-name--hero {
    font-size: 1.05rem;
    max-width: 200px;
}
.about-l-name--sub {
    font-size: 12px;
    max-width: 88px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.about-l-name--chip {
    font-size: 11px;
    font-weight: 600;
    max-width: 72px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #64748b;
}
a.about-l-person:hover .about-l-name { color: #0284c7; }
.about-l-empty {
    margin: 0;
    font-size: 13px;
    color: #94a3b8;
}
.about-l-stats {
    margin-top: 8px;
    padding: 16px 18px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px dashed rgba(14, 165, 233, 0.35);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px 18px;
}
.about-l-stats-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #64748b;
}
.about-l-stats-num {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(120deg, #0284c7, #7c3aed);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.about-l-stats-unit {
    font-size: 15px;
    font-weight: 700;
    color: #0369a1;
}
.about-l-stats-link {
    font-size: 13px;
    font-weight: 600;
    color: #0284c7;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(224, 242, 254, 0.9);
    border: 1px solid rgba(14, 165, 233, 0.3);
    transition: background 0.2s, box-shadow 0.2s;
}
.about-l-stats-link:hover {
    background: #fff;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.18);
}
@media (prefers-reduced-motion: reduce) {
    .about-l-shell::before,
    .about-l-shell::after,
    .about-l-avwrap--hero::after { animation: none !important; }
}