:root {
            --primary-blue: #1D3557;
            --primary-red: #E63946;
            --accent-gold: #F4A261;
            --accent-teal: #2A9D8F;
            --bg-main: #F8F9FA;
            --bg-card: #FFFFFF;
            --text-dark: #2B2D42;
            --text-muted: #6C757D;
            --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.02);
            --shadow-md: 0 10px 30px rgba(29, 53, 87, 0.08);
            --radius-lg: 24px;

            /* Event type colors — master source of truth */
            --evt-parent:   #9B59B6;
            --evt-school:   #F1C40F;
            --evt-campus:   #E91E8C;
            --evt-pd:       #95A5A6;
            --evt-holiday:  #27AE60;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: 'Noto Sans SC', sans-serif;
            background: var(--bg-main);
            color: var(--text-dark);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        .zh { font-size: 1.25em; font-weight: 700; color: var(--primary-blue); }
        .en { font-size: 0.75em; font-weight: 400; color: var(--text-muted); }

        /* Header — Glassmorphism sticky */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 9999;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .header-container {
            width: 100%;
            max-width: 1300px;
            margin: 0 auto;
            padding: 0.8rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-sizing: border-box;
        }

        .logo-link {
            display: flex;
            align-items: center;
            text-decoration: none;
        }

        .site-logo {
            height: 52px;
            width: auto;
            object-fit: contain;
            display: block;
            transition: transform 0.3s ease;
        }

        .logo-link:hover .site-logo {
            transform: scale(1.05);
        }

        .nav-links {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        .nav-links .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            text-decoration: none;
            padding: 0.5rem 0;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .nav-links .nav-link .nav-label {
            font-weight: 700;
            color: var(--primary-blue);
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .nav-links .nav-link .nav-en {
            font-size: 0.7rem;
            color: #94A3B8;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            transition: all 0.3s ease;
            margin-top: 2px;
        }

        .nav-links .nav-link:hover {
            transform: translateY(-2px);
        }

        .nav-links .nav-link:hover .nav-label,
        .nav-links .nav-link:hover .nav-en {
            color: var(--primary-blue);
        }

        .nav-links .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--accent-teal);
            transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-radius: 2px;
        }

        .nav-links .nav-link:hover::after,
        .nav-links .nav-link.active::after {
            width: calc(100% - 1.2rem);
        }

        .nav-links .nav-link.active .nav-label,
        .nav-links .nav-link.active .nav-en {
            color: var(--primary-blue);
        }
        /* Page wrapper */
        .calendar-page {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 1.5rem 4rem;
        }

        /* ── Page Header ── */
        .page-header {
            padding: 2.5rem 0 1.5rem;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 1rem;
        }

        .page-title-group h1 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary-blue);
            line-height: 1.2;
        }

        .page-title-group p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }

        .legend {
            display: flex;
            gap: 1.25rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.75rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .legend-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        /* ── Split Layout ── */
        .calendar-split {
            display: grid;
            grid-template-columns: 65fr 35fr;
            gap: 1.5rem;
            align-items: start;
        }

        /* ── Left: Calendar Grid ── */
        .calendar-grid-panel {
            background: var(--bg-card);
            border-radius: 20px;
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid rgba(29, 53, 87, 0.06);
        }

        /* Month Navigator */
        .cal-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid rgba(29, 53, 87, 0.06);
        }

        .cal-nav-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: none;
            background: rgba(29, 53, 87, 0.06);
            color: var(--primary-blue);
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
            cursor: pointer;
        }

        .cal-nav-btn:hover {
            background: var(--primary-blue);
            color: white;
            transform: scale(1.08);
        }

        .cal-month-title {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--primary-blue);
            text-align: center;
            flex: 1;
        }

        .cal-month-title .year {
            font-size: 0.75rem;
            font-weight: 400;
            color: var(--text-muted);
            font-family: 'Noto Sans SC', sans-serif;
        }

        .cal-today-btn {
            padding: 6px 14px;
            border-radius: 20px;
            border: 2px solid var(--primary-blue);
            background: transparent;
            color: var(--primary-blue);
            font-size: 0.75rem;
            font-weight: 700;
            font-family: 'Noto Sans SC', sans-serif;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }

        .cal-today-btn:hover {
            background: var(--primary-blue);
            color: white;
        }

        /* Weekday headers */
        .cal-weekdays {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            background: rgba(29, 53, 87, 0.03);
            border-bottom: 1px solid rgba(29, 53, 87, 0.05);
        }

        .cal-weekday {
            text-align: center;
            padding: 0.5rem 0.25rem;
            font-size: 0.68rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        /* Day grid */
        .cal-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
        }

        .day-cell {
            min-height: 72px;
            border-right: 1px solid rgba(29, 53, 87, 0.04);
            border-bottom: 1px solid rgba(29, 53, 87, 0.04);
            padding: 6px 6px 4px;
            cursor: pointer;
            transition: background 0.15s;
            position: relative;
        }

        .day-cell:nth-child(7n) {
            border-right: none;
        }

        .day-cell:hover {
            background: rgba(29, 53, 87, 0.025);
        }

        .day-cell.other-month {
            background: rgba(29, 53, 87, 0.018);
        }

        .day-cell.other-month .day-number {
            color: #CBD5E1;
        }

        .day-cell.today {
            background: rgba(230, 57, 70, 0.05);
        }

        .day-cell.today .day-number {
            border: 2.5px solid var(--primary-red);
            color: var(--primary-red);
            font-weight: 800;
        }

        .day-cell.selected {
            background: rgba(29, 53, 87, 0.05);
        }

        .day-cell.selected .day-number {
            background: var(--accent-teal) !important;
            border-color: var(--accent-teal) !important;
            color: white !important;
        }

        .day-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1;
            transition: all 0.15s;
        }

        /* Event dots inside day cells */
        .day-events {
            margin-top: 3px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .day-event-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .day-event-chip {
            display: flex;
            align-items: center;
            gap: 3px;
        }

        .day-event-text {
            font-size: 0.68rem;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.3;
            margin-top: 1px;
        }

        /* ── Ribbon / Flow border-radius for multi-day events ─────────────────────── */
        /* Start day: left side rounded */
        .day-cell.ribbon-start {
            border-top-left-radius: 12px;
            border-bottom-left-radius: 12px;
        }
        /* End day: right side rounded */
        .day-cell.ribbon-end {
            border-top-right-radius: 12px;
            border-bottom-right-radius: 12px;
        }
        /* Middle day: no rounding */
        .day-cell.ribbon-mid {
            border-radius: 0 !important;
        }
        /* Single-day event: both sides rounded */
        .day-cell.ribbon-start.ribbon-end {
            border-radius: 12px !important;
        }

        /* ── Right: Sidebar ── */
        .calendar-sidebar {
            position: sticky;
            top: 90px;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        /* Monthly Theme Banner */
        .theme-banner {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #264573 100%);
            border-radius: 20px;
            padding: 1.5rem;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .theme-banner::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            background: rgba(255,255,255,0.06);
            border-radius: 50%;
        }

        .theme-banner-month {
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            opacity: 0.7;
            margin-bottom: 0.4rem;
        }

        .theme-banner h2 {
            font-family: 'Noto Serif SC', serif;
            font-size: 1.3rem;
            font-weight: 900;
            color: white;
            line-height: 1.3;
            margin-bottom: 0.25rem;
        }

        .theme-banner-en {
            font-size: 0.8rem;
            opacity: 0.75;
            font-weight: 400;
        }

        .theme-banner-icon {
            position: absolute;
            bottom: -10px;
            right: 15px;
            font-size: 4rem;
            opacity: 0.12;
        }

        /* Event Detail Cards */
        .event-detail-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .event-detail-empty {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 2.5rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(29, 53, 87, 0.06);
        }

        .event-detail-empty .emoji { font-size: 2.5rem; margin-bottom: 0.75rem; }
        .event-detail-empty h3 { font-size: 1rem; color: var(--primary-blue); margin-bottom: 0.35rem; }
        .event-detail-empty p { font-size: 0.82rem; color: var(--text-muted); }

        .event-detail-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 1.1rem 1.25rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(29, 53, 87, 0.06);
            transition: all 0.3s ease;
            cursor: default;
            position: relative;
            overflow: hidden;
        }

        .event-detail-card::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0;
            width: 4px;
            border-radius: 4px 0 0 4px;
        }

        .event-detail-card.highlight-flash {
            animation: cardFlash 0.8s ease-out;
        }

        @keyframes cardFlash {
            0%   { background: rgba(42, 157, 143, 0.15); transform: translateX(4px); }
            100% { background: var(--bg-card); transform: translateX(0); }
        }

        @keyframes focusFlash {
            0%   { background: #fff; box-shadow: 0 0 0 rgba(42,157,143,0); }
            50%  { background: rgba(42,157,143,0.15); transform: scale(1.02); box-shadow: 0 4px 16px rgba(42,157,143,0.2); }
            100% { background: #fff; transform: scale(1); }
        }

        .event-detail-card.focus-flash {
            animation: focusFlash 0.7s ease-out forwards;
        }

        .event-detail-card.selected-card {
            border-left: 4px solid var(--accent-teal);
            background: rgba(42, 157, 143, 0.04);
        }
        .event-detail-card:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }

        .event-detail-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 0.6rem;
            gap: 0.5rem;
        }

        .event-detail-date {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .event-detail-day {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary-blue);
            line-height: 1;
        }

        .event-detail-month-yr {
            font-size: 0.72rem;
            color: var(--text-muted);
            font-weight: 600;
            line-height: 1.3;
        }

        .event-type-pill {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.68rem;
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .event-detail-title {
            font-size: 1rem;
            font-weight: 800;
            color: var(--primary-blue);
            line-height: 1.35;
            margin-bottom: 0.2rem;
        }

        .event-detail-title-en {
            font-size: 0.78rem;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 0.4rem;
        }

        .event-detail-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .event-detail-range {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Loading */
        .loading-overlay {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 5rem 2rem;
            gap: 1rem;
            color: var(--text-muted);
        }

        .spinner {
            width: 36px;
            height: 36px;
            border: 3px solid rgba(29, 53, 87, 0.1);
            border-top-color: var(--primary-blue);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

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

        /* ── Venue Reservations Panel ── */
        .venue-reservations-panel {
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(29, 53, 87, 0.06);
        }

        .venue-reservations-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            background: linear-gradient(135deg, #2A9D8F 0%, #264573 100%);
            color: white;
        }

        .venue-reservations-title {
            font-size: 0.95rem;
            font-weight: 700;
            font-family: 'Noto Sans SC', sans-serif;
        }

        .venue-reservations-date {
            font-size: 0.8rem;
            opacity: 0.85;
            font-weight: 500;
        }

        .venue-reservation-list {
            padding: 0.75rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            max-height: 400px;
            overflow-y: auto;
        }

        .venue-res-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem;
            background: #F8FAFC;
            border-radius: 12px;
            border: 1px solid rgba(29, 53, 87, 0.06);
            transition: all 0.2s;
        }

        .venue-res-card:hover {
            background: #F0F4F8;
            transform: translateX(2px);
        }

        .venue-res-card-img-wrap {
            width: 52px;
            height: 52px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: #E2E8F0;
        }

        .venue-res-card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .venue-res-card-body {
            flex: 1;
            min-width: 0;
        }

        .venue-res-card-name {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin-bottom: 0.25rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .venue-res-card-info {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .venue-res-class {
            font-size: 0.75rem;
            font-weight: 600;
            color: #2A9D8F;
            background: rgba(42, 157, 143, 0.1);
            padding: 0.15rem 0.5rem;
            border-radius: 6px;
        }

        .venue-res-time {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 900px) {
            .calendar-split {
                grid-template-columns: 1fr;
            }

            .calendar-sidebar {
                position: static;
            }

            .day-cell {
                min-height: 56px;
            }

            .day-event-text {
                display: none;
            }
        }

        @media (max-width: 640px) {
            .header-container { padding: 0.65rem 1rem; }
            .site-logo { height: 40px; }
            .nav-links { gap: 1rem; }
            .nav-links .nav-en { display: none; }

            .page-header { flex-direction: column; align-items: flex-start; }
            .legend { gap: 0.75rem; }
            .day-cell { min-height: 46px; padding: 4px 3px 3px; }
            .day-number { width: 22px; height: 22px; font-size: 0.72rem; }
            .cal-nav { padding: 1rem; }
            .theme-banner h2 { font-size: 1.1rem; }
        }

/* ── Floating Notice Pill ─────────────────────────── */
.floating-notice-pill {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 12px 40px rgba(29, 53, 87, 0.15);
    border-radius: 50px;
    padding: 0.6rem 0.8rem 0.6rem 1.2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 90%;
    width: max-content;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}
.floating-notice-pill.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: all;
}
.notice-type-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    animation: pulse 2s infinite;
}
.notice-type-dot.danger { background: #E63946; box-shadow: 0 0 8px #E63946; }
.notice-type-dot.info  { background: #1D3557; box-shadow: 0 0 8px #1D3557; }
.notice-type-dot.success { background: #2A9D8F; box-shadow: 0 0 8px #2A9D8F; }

.notice-marquee-container {
    max-width: 400px;
    overflow: hidden;
    white-space: nowrap;
    flex-grow: 1;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}
.notice-text {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #1D3557;
    padding-right: 2rem;
    white-space: nowrap;
}
.notice-close {
    background: rgba(0,0,0,0.05);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    color: #64748B;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}
.notice-close:hover { background: #E63946; color: white; }

@keyframes pulse {
    0%   { transform: scale(1);   opacity: 1; }
    50%  { transform: scale(1.5); opacity: 0.5; }
    100% { transform: scale(1);   opacity: 1; }
}

/* Marquee animation (added dynamically when text overflows) */
@keyframes marquee-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}
.notice-text.marquee {
    animation: marquee-scroll 12s linear infinite;
    display: inline-block;
}
.notice-text.marquee:hover,
.notice-text.marquee:focus {
    animation-play-state: paused;
}

/* Responsive: shrink container on mobile */
@media (max-width: 600px) {
    .notice-marquee-container { max-width: 220px; }
    .notice-text { font-size: 0.82rem; }
}