/* Group Page Specific Styles */
.page-content--flush {
    padding-top: 0;
}

/* === 1. Hero Section === */
.group-hero {
    position: relative;
    padding: 120px 20px 80px;
    margin: -20px calc(-50vw + 50%) 60px;
    background: linear-gradient(135deg, rgba(26, 31, 44, 0.85), rgba(18, 55, 82, 0.88)), 
                url('../images/site/whu_castle.jpg') center/cover fixed;
    color: white;
    text-align: center;
    border-radius: 0 0 40px 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    display: flex;
    justify-content: center;
}

.group-hero-content {
    max-width: 900px;
    width: 100%;
}

.lab-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
    animation: fadeInDown 0.8s ease;
}

.lab-logo {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    display: flex;
    justify-content: center;
    align-items: center;
}

.lab-logo-img {
    width: 100%;
    height: auto;
}

.lab-name {
    font-size: 3.5em;
    font-weight: 900;
    margin: 0;
    color: white;
    letter-spacing: 1px;
    text-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.lab-subtitle {
    font-size: 1.4em;
    color: #f39c12; /* highlight color */
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 40px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6);
    animation: fadeInUp 0.8s ease 0.2s both;
}

/* === 2. Intro Glass Card === */
.intro-glass-card {
    background: rgba(15, 25, 40, 0.35);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 40px 50px;
    text-align: left;
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.welcome-text {
    font-size: 1.5em;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    text-align: center;
}

.intro-text {
    font-size: 1.1em;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 15px;
}

.intro-text strong {
    color: white;
    background: linear-gradient(120deg, rgba(243, 156, 18, 0.3) 0%, rgba(243, 156, 18, 0) 100%);
    padding: 0 4px;
}

.research-focus-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 25px;
    align-items: center;
}

.focus-tag {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.95em;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.focus-tag:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.focus-tag i {
    color: #f39c12;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: white;
    color: var(--secondary-color);
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-github:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

/* === 3. Sections & Typography === */
.section-header {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 50px;
}

.subsection-title {
    font-size: 2.2em;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.title-underline {
    height: 4px;
    width: 80px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* === 4. Members Grid === */
.members-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
}

/* Member Card visually enhanced */
.member-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    z-index: 1;
    width: 100%;
    max-width: 320px;
    flex: 1 1 280px;
}

.member-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 6px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.member-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border-color: rgba(74, 144, 226, 0.2);
}

.member-card:hover::before {
    transform: scaleX(1);
}

.member-image {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    border: 4px solid white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.4s ease;
}

.member-card:hover .member-image {
    transform: scale(1.05);
}

.member-name {
    font-size: 1.4em;
    color: var(--secondary-color);
    margin-bottom: 5px;
    font-weight: 700;
}

.member-title {
    font-size: 0.95em;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.member-bio {
    font-size: 0.9em;
    color: var(--light-text-color);
    line-height: 1.6;
    margin-bottom: 20px;
    padding: 0 10px;
}

.member-links {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 15px;
}

.member-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--surface-color);
    color: var(--secondary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.member-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(74, 144, 226, 0.3);
}

/* === 5. Alumni List === */
.alumni-list-container {
    background: transparent;
    padding: 10px 0;
    border: none;
}

.alumni-ul {
    list-style: none;
    padding: 0;
    margin: 0;
    column-count: 2;
    column-gap: 30px;
    border: none;
    background: transparent;
}

.alumni-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border-color);
    break-inside: avoid;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    background: var(--surface-color);
    border-radius: 12px;
    margin-bottom: 15px;
    border-bottom: none;
}

.alumni-item:hover {
    background: #fff;
    box-shadow: 0 6px 15px rgba(0,0,0,0.08);
    transform: translateY(-3px);
    border-radius: 12px;
}

.alumni-info {
    display: flex;
    flex-direction: column;
}

.alumni-name {
    font-size: 1.1em;
    color: var(--secondary-color);
    margin-bottom: 4px;
}

.alumni-position-line {
    font-size: 0.9em;
    color: var(--light-text-color);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.alumni-title {
    background: #fff;
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85em;
}

.alumni-current {
    color: var(--primary-color);
    font-weight: 500;
}

.alumni-links {
    display: flex;
    gap: 10px;
}

.alumni-links a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: transparent;
    color: var(--light-text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    text-decoration: none;
    border: 1px solid var(--border-color);
}

.alumni-links a:hover {
    background: var(--primary-color);
    color: white !important;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(74, 144, 226, 0.3);
}

/* === Animations === */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Mobile Responsive === */
@media (max-width: 900px) {
    .alumni-ul {
        column-count: 1;
    }
}

@media (max-width: 768px) {
    .group-hero {
        padding: 90px 15px 50px;
        border-radius: 0 0 25px 25px;
        margin-bottom: 40px;
    }
    .lab-title-row {
        flex-direction: column;
        gap: 10px;
    }
    .lab-name {
        font-size: 2.2em;
    }
    .lab-subtitle {
        font-size: 1em;
        margin-bottom: 30px;
    }
    .intro-glass-card {
        padding: 25px 20px;
    }
    .welcome-text {
        font-size: 1.3em;
    }
    .intro-text {
        font-size: 1.05em;
    }
    .focus-tag {
        font-size: 0.85em;
        padding: 6px 12px;
    }
    .members-grid {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .alumni-list-container {
        padding: 10px 0;
    }
    .alumni-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 15px;
    }
}