* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: #e0e0e0;
    min-height: 100vh;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-box h1 {
    color: #ffd700;
    font-size: 28px;
    margin-bottom: 4px;
}

.subtitle {
    color: #888;
    font-size: 14px;
    margin-bottom: 30px;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 16px 24px;
    margin-bottom: 20px;
}

.header h1 {
    color: #ffd700;
    font-size: 22px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 14px;
    color: #aaa;
    flex-wrap: wrap;
}

.user-info strong {
    color: #fff;
}

.credits {
    color: #ffd700 !important;
    font-weight: bold;
    font-style: normal;
}

/* Nav */
.nav {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 4px;
}

.nav a {
    flex: 1;
    text-align: center;
    padding: 12px 16px;
    color: #aaa;
    text-decoration: none;
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
}

.nav a:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.nav a.active {
    color: #fff;
    background: #e74c3c;
}

/* Card */
.card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.card h2 {
    color: #ffd700;
    font-size: 18px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.note {
    color: #888;
    font-size: 13px;
    margin-bottom: 16px;
}

.text-center { text-align: center; }

/* Form */
.form-group {
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: #aaa;
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    color: #fff;
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #ffd700;
}

.form-group input::placeholder {
    color: #666;
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: #1a1a2e;
    color: #fff;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c0392b, #a93226);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
    padding: 14px;
    font-size: 16px;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    background: rgba(255,255,255,0.1);
    color: #aaa;
}

.btn-sm:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.6;
}

.alert-error {
    background: rgba(231, 76, 60, 0.2);
    border: 1px solid rgba(231, 76, 60, 0.4);
    color: #e74c3c;
}

.alert-success {
    background: rgba(46, 204, 113, 0.2);
    border: 1px solid rgba(46, 204, 113, 0.4);
    color: #2ecc71;
}

.alert-info {
    background: rgba(52, 152, 219, 0.2);
    border: 1px solid rgba(52, 152, 219, 0.4);
    color: #3498db;
}

/* Promo */
.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.promo-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 18px;
    text-align: center;
}

.promo-highlight {
    border-color: #ffd700;
    background: rgba(255,215,0,0.08);
}

.promo-title {
    font-size: 16px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 8px;
}

.promo-desc {
    font-size: 14px;
    color: #ccc;
    line-height: 1.8;
}

.promo-desc em {
    color: #ffd700;
}

.tier-bonus-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px 16px;
}
.tier-bonus-item {
    font-size: 13px;
}

.promo-note {
    font-size: 12px;
    color: #777;
    margin-top: 8px;
}

/* Tier Grid */
.tier-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.tier-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 18px;
    text-align: center;
    transition: border-color 0.2s;
}

.tier-card:hover {
    border-color: #ffd700;
}

.tier-amount {
    font-size: 24px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 6px;
}

.tier-discount {
    font-size: 13px;
    color: #2ecc71;
    margin-bottom: 4px;
}

.tier-discount em {
    font-weight: bold;
    color: #2ecc71;
}

.tier-bonus {
    font-size: 13px;
    color: #e74c3c;
    margin-bottom: 4px;
}

.tier-total {
    font-size: 16px;
    color: #ffd700;
    font-weight: bold;
    margin-bottom: 12px;
}

/* Character Grid */
.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 12px;
}

.character-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
    transition: border-color 0.2s;
}

.character-card:hover {
    border-color: #ffd700;
}

.character-card.bound {
    opacity: 0.6;
}

.char-avatar {
    width: 50px;
    height: 50px;
    line-height: 50px;
    margin: 0 auto 8px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border-radius: 50%;
    font-size: 22px;
    color: #fff;
    font-weight: bold;
}

.char-name {
    font-size: 15px;
    color: #fff;
    font-weight: bold;
    margin-bottom: 4px;
}

.char-info {
    font-size: 12px;
    color: #888;
    margin-bottom: 4px;
}

.char-id {
    font-size: 11px;
    color: #666;
    margin-bottom: 10px;
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 12px;
    background: rgba(255,255,255,0.1);
    color: #aaa;
}

.badge-success {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
}

.badge-pending {
    background: rgba(243, 156, 18, 0.2);
    color: #f39c12;
}

.badge-error {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.badge-bound {
    background: rgba(255,215,0,0.2);
    color: #ffd700;
}

/* Binding List */
.binding-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.binding-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
}

.binding-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.binding-info strong {
    font-size: 16px;
}

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.table th {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid rgba(255,255,255,0.1);
    color: #ffd700;
    font-size: 13px;
}

.table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: #ccc;
}

.table tr:hover td {
    background: rgba(255,255,255,0.03);
}

.table code {
    background: rgba(255,255,255,0.05);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

/* Summary */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.summary-item {
    text-align: center;
    padding: 16px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
}

.summary-label {
    font-size: 13px;
    color: #888;
    margin-bottom: 6px;
}

.summary-value {
    font-size: 22px;
    font-weight: bold;
    color: #fff;
}

.summary-value.credits {
    color: #ffd700;
}

/* Order Summary */
.order-summary {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.order-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 14px;
}

.order-row span {
    color: #888;
}

.order-row strong,
.order-row em {
    color: #fff;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 999;
    justify-content: center;
    align-items: center;
}

.modal-overlay.show {
    display: flex;
}

.modal-box {
    background: #1e2a3a;
    border: 1px solid rgba(255,215,0,0.3);
    border-radius: 16px;
    padding: 30px;
    width: 420px;
    max-width: 90vw;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(-30px) scale(0.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-box h2 {
    color: #ffd700;
    font-size: 20px;
    margin-bottom: 16px;
}

.modal-box .modal-msg {
    font-size: 14px;
    color: #aaa;
    line-height: 1.8;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.modal-box .modal-msg strong {
    color: #fff;
}

.modal-box .modal-msg em {
    color: #ffd700;
    font-weight: bold;
    font-style: normal;
}

.modal-box .modal-amount {
    font-size: 32px;
    color: #ffd700;
    font-weight: bold;
    margin-bottom: 6px;
}

.modal-box .modal-order {
    font-size: 12px;
    color: #666;
    word-break: break-all;
    margin-bottom: 20px;
}

.modal-box .modal-qrcode {
    padding: 10px;
    background: #fff;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 12px;
    line-height: 0;
}

.modal-box .modal-qrcode canvas {
    display: block;
}

.modal-box .modal-tip {
    color: #888;
    font-size: 13px;
    margin-bottom: 20px;
}

.modal-box .modal-close {
    display: inline-block;
    padding: 10px 30px;
    background: rgba(255,255,255,0.1);
    color: #aaa;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-box .modal-close:hover {
    background: rgba(255,255,255,0.2);
    color: #fff;
}

.modal-loading {
    font-size: 14px;
    color: #888;
    padding: 20px;
}

.modal-error {
    color: #e74c3c;
    font-size: 14px;
    padding: 20px;
}