:root {
    --bg: #f5f5f5;
    --bg-panel: #ffffff;
    --bg-sidebar: #fafafa;
    --text: #333333;
    --text-secondary: #666666;
    --border: #e0e0e0;
    --accent: #4a90d9;
    --accent-hover: #357abd;
    --danger: #d94a4a;
    --danger-hover: #c0392b;
    --shiny-red: #d32f2f;
    --table-stripe: #f9f9f9;
    --table-hover: #eef5fb;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.15);
    --modal-overlay: rgba(0,0,0,0.5);
    --input-bg: #ffffff;
    --input-border: #cccccc;
    --tag-bg: #e8f0fe;
    --tag-text: #4a90d9;
    --star-color: #f0a500;
    --toast-bg: #333;
    --toast-color: #fff;
    --card-empty-bg: #f0f0f0;
    --user-card-inactive-bg: #e0e0e0;
    --user-card-inactive-text: #333;
    --gift-red: #e53935;
    --gift-green: #43a047;
    --la-green: #43a047;
    --la-red: #e53935;
    --code-blue: #4a90d9;
    --code-expire-red: #e53935;
    --qty-multi-bg: #fff9c4;
    --qty-multi-text: #5d4e37;
}
body.theme-dark {
    --bg: #1a1a2e;
    --bg-panel: #252540;
    --bg-sidebar: #1e1e35;
    --text: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border: #3a3a55;
    --accent: #6db3f2;
    --accent-hover: #5098d6;
    --danger: #e05555;
    --danger-hover: #c0392b;
    --shiny-red: #ff5252;
    --table-stripe: #2a2a42;
    --table-hover: #303050;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --modal-overlay: rgba(0,0,0,0.7);
    --input-bg: #2a2a42;
    --input-border: #4a4a65;
    --tag-bg: #2a3a50;
    --tag-text: #6db3f2;
    --star-color: #ffc107;
    --toast-bg: #e0e0e0;
    --toast-color: #1a1a2e;
    --card-empty-bg: #2a2a40;
    --user-card-inactive-bg: #3a3a55;
    --user-card-inactive-text: #bbb;
    --gift-red: #ff5252;
    --gift-green: #66bb6a;
    --la-green: #66bb6a;
    --la-red: #ff5252;
    --code-blue: #6db3f2;
    --code-expire-red: #ff5252;
    --qty-multi-bg: #4a4520;
    --qty-multi-text: #ffe082;
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family: 'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

.top-bar {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}
.top-bar .logo { font-size: 1.4em; font-weight: 700; color: var(--accent); letter-spacing: 2px; }
.top-bar-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.user-cards { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.user-card {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    white-space: nowrap;
    background: var(--user-card-inactive-bg);
    color: var(--user-card-inactive-text);
    user-select: none;
}
.user-card.active { background: #ffb6c1; color: #000; border-color: #ff69b4; cursor: default; }
.user-card:not(.active):hover { opacity: 0.8; transform: scale(1.02); }

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-sm { padding: 5px 10px; font-size: 0.8em; border-radius: 4px; }
.btn-xs { padding: 3px 8px; font-size: 0.75em; border-radius: 3px; }

.theme-toggle-btn {
    width: 38px; height: 38px; border-radius: 50%;
    border: 1.5px solid var(--border); background: var(--bg-panel);
    cursor: pointer; font-size: 1.2em;
    display: flex; align-items: center; justify-content: center;
    color: var(--text); transition: all 0.3s;
}
.theme-toggle-btn:hover { border-color: var(--accent); box-shadow: 0 0 12px rgba(74,144,217,0.3); }

.menu-toggle {
    display: none;
    background: none;
    border: 1.5px solid var(--border);
    color: var(--text);
    font-size: 1.5em;
    width: 40px; height: 40px;
    align-items: center; justify-content: center;
    border-radius: 6px;
    cursor: pointer;
}

.toast-container {
    position: fixed; top: 20px; right: 20px; z-index: 9999;
    display: flex; flex-direction: column; gap: 10px;
}
.toast {
    padding: 12px 20px; border-radius: 8px;
    background: var(--toast-bg); color: var(--toast-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    font-size: 0.9em; display: flex; align-items: center; gap: 8px;
    animation: slideIn 0.3s ease; transition: opacity 0.3s;
}
.toast.success { background: #4caf50; color: #fff; }
.toast.error { background: #f44336; color: #fff; }
@keyframes slideIn {
    from { transform: translateX(100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.main-container { display: flex; min-height: calc(100vh - 60px); position: relative; }
.sidebar {
    width: 260px; min-width: 260px;
    background: var(--bg-sidebar); border-right: 1px solid var(--border);
    padding: 0; overflow-y: auto; max-height: calc(100vh - 60px);
    position: sticky; top: 60px; transition: transform 0.3s ease; z-index: 50;
    display: flex; flex-direction: column;
}
.sidebar-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border);
    display: flex; flex-direction: column; gap: 10px;
}
.sidebar-header .current-user { font-weight: 600; font-size: 0.9em; color: var(--text); }
.sidebar-header .user-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.gift-status-row { display: flex; align-items: center; gap: 8px; margin-top: 4px; }
.gift-status {
    font-weight: 600; font-size: 0.85em;
    padding: 2px 10px; border-radius: 12px;
}
.gift-status.ungifted { background: var(--gift-red); color: #fff; }
.gift-status.gifted { background: var(--gift-green); color: #fff; }

.sidebar .nav-title {
    padding: 12px 20px; font-weight: 700; font-size: 0.85em;
    color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px;
}
.tree-nav { list-style: none; padding: 0; }
.tree-nav li { margin: 0; }
.tree-nav .series-item {
    cursor: pointer; padding: 10px 20px; font-weight: 600; font-size: 0.9em;
    display: flex; align-items: center; gap: 8px; transition: background 0.2s;
    border-left: 3px solid transparent; color: var(--text); user-select: none;
}
.tree-nav .series-item:hover { background: var(--table-hover); border-left-color: var(--accent); }
.tree-nav .series-item .arrow {
    font-size: 0.7em; transition: transform 0.3s; display: inline-block; width: 14px; text-align: center;
}
.tree-nav .series-item.open .arrow { transform: rotate(90deg); }
.tree-nav .sub-list { list-style: none; padding: 0; max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.tree-nav .sub-list.expanded { max-height: 2000px; }
.tree-nav .sub-list li a {
    display: block; padding: 7px 20px 7px 40px; font-size: 0.85em;
    color: var(--text-secondary); text-decoration: none; transition: all 0.2s;
    border-left: 3px solid transparent; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tree-nav .sub-list li a:hover { color: var(--accent); background: var(--table-hover); border-left-color: var(--accent); }
.tree-nav .sub-list li a .nav-star { color: var(--star-color); font-size: 0.8em; letter-spacing: 1px; }
.tree-nav .sub-list li a.shiny-nav { font-weight: 700; color: var(--shiny-red); }

.content-area { flex: 1; padding: 24px; overflow-y: auto; }

.cards-wrapper { display: flex; flex-direction: column; gap: 20px; }
.series-title {
    font-weight: 700; font-size: 1.1em; color: var(--accent);
    padding: 8px 0; border-bottom: 2px solid var(--border); margin-bottom: 8px;
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.card-item {
    background: var(--bg-panel); border-radius: 10px; border: 1px solid var(--border);
    padding: 16px; transition: box-shadow 0.2s, transform 0.1s;
    display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px;
    position: relative;
}
.card-item.empty-card { background: var(--card-empty-bg); }
.card-item:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.card-name {
    font-weight: 600; font-size: 1em; cursor: pointer;
    color: var(--accent); text-decoration: underline; transition: color 0.2s;
}
.card-name.shiny-text { color: var(--shiny-red); font-weight: 700; }
.shiny-badge {
    display: inline-block; background: var(--shiny-red); color: #fff;
    font-size: 0.65em; padding: 1px 6px; border-radius: 8px; font-weight: 700; margin-left: 4px;
}
.star-display { color: var(--star-color); letter-spacing: 2px; font-size: 0.85em; }
.quantity-cell { cursor: pointer; display: inline-block; }
.quantity-badge {
    display: inline-block; background: var(--tag-bg); color: var(--tag-text);
    padding: 4px 14px; border-radius: 14px; font-weight: 600; font-size: 0.9em;
    transition: background 0.2s;
}
.quantity-badge.quantity-multi {
    background: var(--qty-multi-bg);
    color: var(--qty-multi-text);
}
.quantity-cell:hover .quantity-badge { background: var(--accent); color: #fff; }
.quantity-input {
    width: 70px; padding: 4px 8px; border: 1.5px solid var(--accent);
    border-radius: 6px; font-size: 0.9em; text-align: center;
    background: var(--input-bg); color: var(--text); outline: none;
}

.user-select-card { cursor: pointer; }
.user-select-card .user-select-name { font-weight: 600; font-size: 1.1em; color: var(--text); }
.user-select-card .gift-status-label {
    font-size: 0.8em; padding: 2px 12px; border-radius: 12px;
    font-weight: 600; margin-top: 4px;
}
.user-select-card .gift-status-label.ungifted { background: var(--gift-red); color: #fff; }
.user-select-card .gift-status-label.gifted { background: var(--gift-green); color: #fff; }

.login-panel {
    max-width: 1650px; margin: 40px auto;
    background: var(--bg-panel); border-radius: 14px;
    box-shadow: var(--shadow-lg); padding: 30px; border: 1px solid var(--border);
}
.login-panel h2 { text-align: center; color: var(--accent); margin-bottom: 24px; }
.login-section { margin-bottom: 24px; }
.login-section h3 {
    font-size: 1em; color: var(--text-secondary);
    margin-bottom: 10px; border-bottom: 1px solid var(--border); padding-bottom: 8px;
}
.input-group { display: flex; gap: 8px; flex-wrap: wrap; }
.input-group input {
    flex: 1; min-width: 150px; padding: 10px 14px;
    border: 1.5px solid var(--input-border); border-radius: 6px;
    font-size: 0.9em; background: var(--input-bg); color: var(--text);
}

.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--modal-overlay); z-index: 999;
    display: flex; align-items: center; justify-content: center;
}
.modal-dialog {
    background: var(--bg-panel); border-radius: 12px;
    box-shadow: var(--shadow-lg); padding: 24px;
    max-width: 1000px; width: 95%; max-height: 80vh; overflow-y: auto;
    position: relative;
}
.modal-close {
    position: absolute; top: 12px; right: 16px;
    background: none; border: none; font-size: 1.5em;
    cursor: pointer; color: var(--text-secondary);
}
.modal-close:hover { color: var(--danger); }

.alert-modal { text-align: center; }
.alert-modal .alert-icon { font-size: 3em; color: var(--danger); margin-bottom: 12px; }
.alert-modal .alert-title { font-size: 1.3em; font-weight: 700; color: var(--danger); margin-bottom: 8px; }
.alert-modal .alert-message { color: var(--text-secondary); margin-bottom: 20px; }

/* 互换大厅表格 */
.swap-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}
.swap-table th, .swap-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.swap-table th {
    background: var(--bg-sidebar);
    font-weight: 700;
}
.owner-link {
    color: var(--accent);
    cursor: pointer;
    margin-right: 8px;
    text-decoration: underline;
}

/* 捞人计划 */
.la-card {
    background: var(--bg-panel);
    border-radius: 10px;
    border: 1px solid var(--border);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}
.la-code-info {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8em;
    font-weight: 600;
    color: #fff;
}
.la-code-info.blue { background: var(--code-blue); }
.la-code-info.red { background: var(--code-expire-red); }
.la-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}
.la-btn {
    padding: 4px 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8em;
    font-weight: 600;
}
.la-btn.la-green { background: var(--la-green); color: #fff; }
.la-btn.la-red { background: var(--la-red); color: #fff; }
.la-btn.copy-btn { background: var(--accent); color: #fff; }

.coord-span {
    font-size: 0.75em;
    background: var(--tag-bg);
    color: var(--tag-text);
    padding: 2px 8px;
    border-radius: 10px;
    cursor: pointer;
    margin-top: -4px;
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .sidebar {
        position: fixed; top: 60px; left: 0; width: 260px;
        height: calc(100vh - 60px); transform: translateX(-100%);
        z-index: 200; box-shadow: var(--shadow-lg);
    }
    .sidebar.open { transform: translateX(0); }
    .main-container { flex-direction: column; }
    .content-area { padding: 12px; }
    .cards-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
    .card-item { padding: 12px; }
    .user-cards { max-width: 100%; overflow-x: auto; }
}
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar { width: 220px; min-width: 220px; }
    .content-area { padding: 16px; }
}

/* ========== 搜索框 ========== */
.search-container {
    display: flex;
    align-items: center;
}
.search-container input {
    padding: 6px 12px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-size: 0.85em;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
    width: 180px;
    transition: border-color 0.3s;
}
.search-container input:focus {
    border-color: var(--accent);
}
@media (max-width: 768px) {
    .search-container input {
        width: 140px;
    }
}

/* 搜索框 */
.search-container input {
    padding: 6px 12px;
    border: 1.5px solid var(--border);
    border-radius: 20px;
    font-size: 0.85em;
    background: var(--input-bg);
    color: var(--text);
    outline: none;
    width: 180px;
    transition: border-color 0.3s;
}
.search-container input:focus {
    border-color: var(--accent);
}

/* 已捞卡片底色 */
.la-card.la-done {
    background-color: #f0f0f0;
}
body.theme-dark .la-card.la-done {
    background-color: #2a2a40;
}