/* ====================================
   ONEONELITE - 買家中心獨立樣式系統
   ==================================== */

/* 基礎重置與變數 */
:root {
    --buyer-primary: #D1080F;  /* ONEONELITE 企業紅 */
    --buyer-primary-hover: #B50710;
    --buyer-secondary: #c49040;  /* ONEONELITE 金色 */
    --buyer-accent: #2d9adc;  /* ONEONELITE 藍色 */
    --buyer-success: #28a745;
    --buyer-warning: #ffc107;
    --buyer-danger: #dc3545;
    --buyer-info: #17a2b8;
    --buyer-light: #f8f9fa;
    --buyer-dark: #343a40;

    --buyer-gray-100: #f8f9fa;
    --buyer-gray-200: #e9ecef;
    --buyer-gray-300: #dee2e6;
    --buyer-gray-400: #ced4da;
    --buyer-gray-500: #adb5bd;
    --buyer-gray-600: #6c757d;
    --buyer-gray-700: #495057;
    --buyer-gray-800: #343a40;
    --buyer-gray-900: #212529;

    --buyer-white: #ffffff;
    --buyer-black: #000000;

    --buyer-border-radius: 8px;
    --buyer-border-radius-lg: 12px;
    --buyer-border-radius-sm: 4px;

    --buyer-shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --buyer-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --buyer-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);

    --buyer-font-size-sm: 0.875rem;
    --buyer-font-size-base: 1rem;
    --buyer-font-size-lg: 1.25rem;
    --buyer-font-size-xl: 1.5rem;

    --buyer-spacing-1: 0.25rem;
    --buyer-spacing-2: 0.5rem;
    --buyer-spacing-3: 1rem;
    --buyer-spacing-4: 1.5rem;
    --buyer-spacing-5: 3rem;
}

/* 基礎佈局 */
/* 買家中心容器 - 適應 ONEONELITE 佈局 */
.buyer-container {
    max-width: 1140px;  /* 與 ONEONELITE container 一致 */
    margin: 0 auto;
    padding: 30px 2rem;  /* 上下30px，左右2rem避免貼邊 */
    width: 100%;
    text-align: left;  /* 覆蓋 container 的 text-align: center */
}

/* 買家中心主頁特殊樣式 - 移除頂部 padding */
.buyer-center.index .buyer-container {
    padding-top: 0;
    padding-bottom: 30px;
    padding-left: 2rem;
    padding-right: 2rem;
}

.buyer-container-fluid {
    width: 100%;
    padding: 0 var(--buyer-spacing-3);
}

/* 網格系統 */
.buyer-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -1rem;  /* 負外距來抵消 col 的內邊距 */
}

.buyer-col {
    flex: 1;
    padding: 0 1rem;  /* 每個 col 都有 1rem 的內邊距 */
}

.buyer-col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; padding: 0 1rem; }
.buyer-col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; padding: 0 1rem; }
.buyer-col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 1rem; }
.buyer-col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 1rem; }
.buyer-col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 1rem; }
.buyer-col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 1rem; }
.buyer-col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 1rem; }

@media (min-width: 768px) {
    .buyer-col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; padding: 0 1rem; }
    .buyer-col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; padding: 0 1rem; }
    .buyer-col-md-3 { flex: 0 0 25%; max-width: 25%; padding: 0 1rem; }
    .buyer-col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 1rem; }
    .buyer-col-md-6 { flex: 0 0 50%; max-width: 50%; padding: 0 1rem; }
    .buyer-col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 1rem; }
    .buyer-col-md-12 { flex: 0 0 100%; max-width: 100%; padding: 0 1rem; }
}

@media (min-width: 992px) {
    .buyer-col-lg-3 { flex: 0 0 25%; max-width: 25%; padding: 0 1rem; }
    .buyer-col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 1rem; }
    .buyer-col-lg-6 { flex: 0 0 50%; max-width: 50%; padding: 0 1rem; }
    .buyer-col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 1rem; }
    .buyer-col-lg-9 { flex: 0 0 75%; max-width: 75%; padding: 0 1rem; }
    .buyer-col-lg-12 { flex: 0 0 100%; max-width: 100%; padding: 0 1rem; }
}

/* 間距工具類 */
.buyer-mb-0 { margin-bottom: 0; }
.buyer-mb-1 { margin-bottom: var(--buyer-spacing-1); }
.buyer-mb-2 { margin-bottom: var(--buyer-spacing-2); }
.buyer-mb-3 { margin-bottom: var(--buyer-spacing-3); }
.buyer-mb-4 { margin-bottom: var(--buyer-spacing-4); }
.buyer-mb-5 { margin-bottom: var(--buyer-spacing-5); }

.buyer-mt-0 { margin-top: 0; }
.buyer-mt-1 { margin-top: var(--buyer-spacing-1); }
.buyer-mt-2 { margin-top: var(--buyer-spacing-2); }
.buyer-mt-3 { margin-top: var(--buyer-spacing-3); }
.buyer-mt-4 { margin-top: var(--buyer-spacing-4); }
.buyer-mt-5 { margin-top: var(--buyer-spacing-5); }

.buyer-p-0 { padding: 0; }
.buyer-p-1 { padding: var(--buyer-spacing-1); }
.buyer-p-2 { padding: var(--buyer-spacing-2); }
.buyer-p-3 { padding: var(--buyer-spacing-3); }
.buyer-p-4 { padding: var(--buyer-spacing-4); }

.buyer-py-3 {
    padding-top: var(--buyer-spacing-3);
    padding-bottom: var(--buyer-spacing-3);
}
.buyer-py-4 {
    padding-top: var(--buyer-spacing-4);
    padding-bottom: var(--buyer-spacing-4);
}
.buyer-py-5 {
    padding-top: var(--buyer-spacing-5);
    padding-bottom: var(--buyer-spacing-5);
}

.buyer-pt-4 {
    padding-top: var(--buyer-spacing-4);
}

/* 卡片組件 - 現代簡約設計 */
.buyer-card {
    background-color: var(--buyer-white);
    border: 1px solid var(--buyer-gray-200);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    position: relative;
}

.buyer-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
    border-color: var(--buyer-primary);
}

.buyer-card-header {
    padding: 1.5rem 2rem;
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
    border-bottom: 1px solid var(--buyer-gray-200);
    position: relative;
}

.buyer-card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--buyer-primary), var(--buyer-secondary));
}

.buyer-card-header h6 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--buyer-dark);
    margin: 0;
}

.buyer-card-body {
    padding: 2rem;
}

.buyer-card-footer {
    padding: var(--buyer-spacing-3);
    background-color: var(--buyer-light);
    border-top: 1px solid var(--buyer-gray-200);
}

/* 按鈕組件 */
.buyer-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 44px;
    position: relative;
    overflow: hidden;
}

.buyer-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.buyer-btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.buyer-btn:hover::before {
    left: 100%;
}

.buyer-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(209, 8, 15, 0.25);
}

.buyer-btn:active {
    transform: translateY(0);
}

/* 按鈕變體 */
.buyer-btn-primary {
    background-color: var(--buyer-primary);
    border-color: var(--buyer-primary);
    color: var(--buyer-white);
    border-radius: 24px;
}

.buyer-btn-primary:hover {
    background-color: var(--buyer-primary-hover);
    border-color: var(--buyer-primary-hover);
    color: var(--buyer-white);
}

.buyer-btn-outline-primary {
    background-color: transparent;
    border-color: var(--buyer-primary);
    color: var(--buyer-primary);
    border-radius: 24px;

}

.buyer-btn-outline-primary:hover {
    background-color: var(--buyer-primary);
    border-color: var(--buyer-primary);
    color: var(--buyer-white);
}

.buyer-btn-success {
    background-color: var(--buyer-success);
    border-color: var(--buyer-success);
    color: var(--buyer-white);
}

.buyer-btn-outline-success {
    background-color: transparent;
    border-color: var(--buyer-success);
    color: var(--buyer-success);
}

.buyer-btn-outline-success:hover {
    background-color: var(--buyer-success);
    border-color: var(--buyer-success);
    color: var(--buyer-white);
}

.buyer-btn-warning {
    background-color: var(--buyer-warning);
    border-color: var(--buyer-warning);
    color: var(--buyer-dark);
}

.buyer-btn-outline-warning {
    background-color: transparent;
    border-color: var(--buyer-warning);
    color: var(--buyer-warning);
}

.buyer-btn-outline-warning:hover {
    background-color: var(--buyer-warning);
    border-color: var(--buyer-warning);
    color: var(--buyer-dark);
}

.buyer-btn-secondary {
    background-color: var(--buyer-secondary);
    border-color: var(--buyer-secondary);
    color: var(--buyer-white);
}

.buyer-btn-outline-secondary {
    background-color: transparent;
    border-color: var(--buyer-secondary);
    color: var(--buyer-secondary);
    border-radius: 24px;
}

/* 按鈕大小 */
.buyer-btn-sm {
    padding: var(--buyer-spacing-1) var(--buyer-spacing-2);
    font-size: var(--buyer-font-size-sm);
    min-height: 32px;
}

.buyer-btn-lg {
    padding: var(--buyer-spacing-3) var(--buyer-spacing-4);
    font-size: var(--buyer-font-size-lg);
    min-height: 48px;
}

.buyer-btn-block {
    display: flex;
    width: 100%;
}

/* 統計卡片 */
.buyer-stat-card {
    background: linear-gradient(135deg, var(--buyer-white) 0%, var(--buyer-light) 100%);
    border: 1px solid var(--buyer-gray-200);
    border-radius: var(--buyer-border-radius-lg);
    padding: var(--buyer-spacing-4);
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.buyer-stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--buyer-primary), var(--buyer-primary-hover));
}

.buyer-stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--buyer-shadow-lg);
}

.buyer-stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--buyer-spacing-3);
}

.buyer-stat-title {
    font-size: var(--buyer-font-size-sm);
    color: var(--buyer-gray-600);
    margin-bottom: var(--buyer-spacing-2);
    font-weight: 500;
}

.buyer-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--buyer-gray-800);
    line-height: 1.2;
}

/* 快速操作按鈕 */
.buyer-action-btn {
    padding: var(--buyer-spacing-4) var(--buyer-spacing-3);
    text-decoration: none;
    border-radius: var(--buyer-border-radius-lg);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    position: relative;
    overflow: hidden;
}

.buyer-action-btn:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

.buyer-action-btn i {
    font-size: 2.5rem;
    margin-bottom: var(--buyer-spacing-3);
}

.buyer-action-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--buyer-spacing-1);
    color: inherit;
}

.buyer-action-btn small {
    font-weight: 500;
    font-size: var(--buyer-font-size-base);
}

/* 表格 */
.buyer-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--buyer-spacing-3);
}

.buyer-table th,
.buyer-table td {
    padding: var(--buyer-spacing-3);
    text-align: left;
    border-bottom: 1px solid var(--buyer-gray-200);
    vertical-align: middle;
    position: relative;
    overflow: visible;
}

.buyer-table th {
    background-color: var(--buyer-light);
    font-weight: 600;
    color: var(--buyer-gray-700);
    font-size: var(--buyer-font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.buyer-table tbody tr:hover {
    background-color: var(--buyer-gray-100);
}

.buyer-table-responsive {
    overflow-x: auto;
    border-radius: var(--buyer-border-radius);
}

/* 徽章 */
.buyer-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--buyer-spacing-1) var(--buyer-spacing-2);
    font-size: var(--buyer-font-size-sm);
    font-weight: 500;
    border-radius: var(--buyer-border-radius-sm);
    text-align: center;
    white-space: nowrap;
}

.buyer-badge-primary {
    background-color: var(--buyer-primary);
    color: var(--buyer-white);
}

.buyer-badge-success {
    background-color: var(--buyer-success);
    color: var(--buyer-white);
}

.buyer-badge-warning {
    background-color: var(--buyer-warning);
    color: var(--buyer-dark);
}

.buyer-badge-danger {
    background-color: var(--buyer-danger);
    color: var(--buyer-white);
}

.buyer-badge-info {
    background-color: var(--buyer-info);
    color: var(--buyer-white);
}

.buyer-badge-secondary {
    background-color: var(--buyer-secondary);
    color: var(--buyer-white);
}

/* 表單 */
.buyer-form-group {
    margin-bottom: var(--buyer-spacing-3);
}

.buyer-form-label {
    display: block;
    margin-bottom: var(--buyer-spacing-1);
    font-weight: 500;
    color: var(--buyer-gray-700);
    font-size: var(--buyer-font-size-sm);
}

.buyer-form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    border: 1px solid var(--buyer-gray-300);
    border-radius: 8px;
    background-color: var(--buyer-white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.buyer-form-control:focus {
    outline: none;
    border-color: var(--buyer-primary);
    box-shadow: 0 0 0 3px rgba(209, 8, 15, 0.1);
    transform: translateY(-1px);
}

.buyer-form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m1 6 7 7 7-7'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    appearance: none;
}

/* 警告框組件 */
.buyer-alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: var(--buyer-border-radius);
    position: relative;
}

.buyer-alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeaa7;
}

.buyer-alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.buyer-alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.buyer-alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

.buyer-alert-primary {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

/* 空白狀態組件 */
.buyer-empty-state {
    text-align: center;
    padding: 3rem 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.buyer-empty-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.buyer-empty-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--buyer-dark);
    margin-bottom: 0.75rem;
}

.buyer-empty-text {
    color: var(--buyer-gray-600);
    margin-bottom: 2rem;
    line-height: 1.5;
}

/* 文字工具類 */
.buyer-text-primary {
    color: var(--buyer-primary) !important;
}

.buyer-text-secondary {
    color: var(--buyer-secondary) !important;
}

.buyer-text-success {
    color: var(--buyer-success) !important;
}

.buyer-text-danger {
    color: var(--buyer-danger) !important;
}

.buyer-text-warning {
    color: var(--buyer-warning) !important;
}

.buyer-text-info {
    color: var(--buyer-info) !important;
}

.buyer-text-light {
    color: var(--buyer-light) !important;
}

.buyer-text-dark {
    color: var(--buyer-dark) !important;
}

.buyer-text-muted {
    color: var(--buyer-gray-600) !important;
}

.buyer-text-white {
    color: var(--buyer-white) !important;
}

/* 邊距工具類 */
.buyer-mt-2 {
    margin-top: var(--buyer-spacing-2) !important;
}

.buyer-ml-4 {
    margin-left: var(--buyer-spacing-4) !important;
}

.buyer-me-2 {
    margin-right: var(--buyer-spacing-2) !important;
}

.buyer-ms-2 {
    margin-left: var(--buyer-spacing-2) !important;
}

/* 下拉選單 */
.buyer-dropdown {
    position: relative;
    display: inline-block;
}

.buyer-dropdown-toggle {
    cursor: pointer;
}

.buyer-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    display: none;
    min-width: 160px;
    padding: var(--buyer-spacing-1) 0;
    margin: 0;
    background-color: var(--buyer-white);
    border: 1px solid var(--buyer-gray-200);
    border-radius: var(--buyer-border-radius);
    box-shadow: var(--buyer-shadow);
}

.buyer-dropdown.active .buyer-dropdown-menu {
    display: block;
}

.buyer-dropdown-item {
    display: block;
    width: 100%;
    padding: var(--buyer-spacing-2) var(--buyer-spacing-3);
    color: var(--buyer-gray-700);
    text-decoration: none;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.buyer-dropdown-item:hover {
    background-color: var(--buyer-gray-100);
    text-decoration: none;
    color: var(--buyer-gray-800);
}

/* 工具類 */
.buyer-text-center { text-align: center; }
.buyer-text-left { text-align: left; }
.buyer-text-right { text-align: right; }

.buyer-text-primary { color: var(--buyer-primary); }
.buyer-text-secondary { color: var(--buyer-secondary); }
.buyer-text-success { color: var(--buyer-success); }
.buyer-text-warning { color: var(--buyer-warning); }
.buyer-text-danger { color: var(--buyer-danger); }
.buyer-text-muted { color: var(--buyer-gray-600); }

.buyer-bg-primary { background-color: var(--buyer-primary); }
.buyer-bg-light { background-color: var(--buyer-light); }
.buyer-bg-white { background-color: var(--buyer-white); }

.buyer-d-flex { display: flex; }
.buyer-d-block { display: block; }
.buyer-d-none { display: none; }

.buyer-align-items-center { align-items: center; }
.buyer-align-items-start { align-items: flex-start; }
.buyer-align-items-end { align-items: flex-end; }

.buyer-justify-content-center { justify-content: center; }
.buyer-justify-content-between { justify-content: space-between; }
.buyer-justify-content-start { justify-content: flex-start; }
.buyer-justify-content-end { justify-content: flex-end; }

.buyer-w-100 { width: 100%; }
.buyer-h-100 { height: 100%; }

.buyer-rounded { border-radius: var(--buyer-border-radius); }
.buyer-rounded-lg { border-radius: var(--buyer-border-radius-lg); }

.buyer-shadow-sm { box-shadow: var(--buyer-shadow-sm); }
.buyer-shadow { box-shadow: var(--buyer-shadow); }
.buyer-shadow-lg { box-shadow: var(--buyer-shadow-lg); }

/* 響應式 */
@media (max-width: 767px) {
    .buyer-container {
        padding: 0 var(--buyer-spacing-2);
    }

    .buyer-stat-card {
        margin-bottom: var(--buyer-spacing-3);
    }

    .buyer-action-btn {
        min-height: 100px;
        padding: var(--buyer-spacing-3) var(--buyer-spacing-2);
    }

    .buyer-action-btn i {
        font-size: 1.5rem;
    }

    .buyer-btn-block-mobile {
        display: flex;
        width: 100%;
        margin-bottom: var(--buyer-spacing-2);
    }

    .buyer-table {
        font-size: var(--buyer-font-size-sm);
    }

    .buyer-table th,
    .buyer-table td {
        padding: var(--buyer-spacing-2);
    }
}

/* 動畫 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.buyer-fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

.buyer-slide-up {
    animation: slideUp 0.6s ease-out;
}

/* 空狀態 */
.buyer-empty-state {
    text-align: center;
    padding: var(--buyer-spacing-5) var(--buyer-spacing-3);
}

.buyer-empty-state i {
    font-size: 4rem;
    color: var(--buyer-gray-400);
    margin-bottom: var(--buyer-spacing-3);
}

.buyer-empty-state h5 {
    color: var(--buyer-gray-600);
    margin-bottom: var(--buyer-spacing-2);
}

.buyer-empty-state p {
    color: var(--buyer-gray-500);
    margin-bottom: var(--buyer-spacing-3);
}

/* ======================
   代幣中心專用樣式
   ====================== */

/* 代幣餘額卡片 */
.buyer-coin-balance-card {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--buyer-primary), var(--buyer-primary-hover));
    border-radius: var(--buyer-border-radius-lg);
    color: var(--buyer-white);
    min-height: 120px;
}

.buyer-coin-balance-icon {
    font-size: 3rem;
    margin-right: 1rem;
    opacity: 0.8;
}

.buyer-coin-balance-amount {
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1;
}

.buyer-coin-balance-label {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: 0.25rem;
}

.buyer-coin-balance-merchant {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 0.25rem;
}

/* 代幣操作區域 */
.buyer-coin-actions {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    padding: 1rem;
}

/* 代幣使用說明 */
.buyer-coin-guide-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem 0;
}

.buyer-coin-guide-icon {
    position: relative;
    font-size: 1.5rem;
    margin-right: 1rem;
    color: var(--buyer-primary);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.buyer-step-number {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--buyer-white);
}

/* 常見問題 */
.buyer-faq-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--buyer-gray-200);
}

.buyer-faq-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

/* 儲值方案 */
.buyer-topup-plans {
    margin-top: 1rem;
}

.buyer-topup-plan {
    text-align: center;
    padding: 1.5rem;
    border: 1px solid var(--buyer-gray-300);
    border-radius: var(--buyer-border-radius-md);
    position: relative;
    background: var(--buyer-white);
    transition: all 0.3s ease;
}

.buyer-topup-plan:hover {
    border-color: var(--buyer-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.buyer-topup-amount {
    font-size: 2rem;
    font-weight: 600;
    color: var(--buyer-primary);
    margin-bottom: 0.5rem;
}

.buyer-topup-price {
    font-size: 1.25rem;
    color: var(--buyer-gray-700);
    margin: 0.5rem 0 1rem;
}

.buyer-topup-bonus {
    font-size: 0.75rem;
    background: var(--buyer-success);
    color: var(--buyer-white);
    padding: 0.25rem 0.5rem;
    border-radius: var(--buyer-border-radius-sm);
    position: absolute;
    top: -8px;
    right: 8px;
    font-weight: 600;
}

/* ====================================
   買家中心整體佈局樣式
   ==================================== */

/* 確保買家中心在 ONEONELITE 佈局中正確顯示 */
.buyer-center-wrapper {
    background: #fff;
    min-height: calc(100vh - 240px);
    padding: 0; /* 移除 padding，讓導航欄位緊貼頂部 */
}

/* Tab 導航系統 - 現代簡約風格 */
.buyer-tabs {
    border-bottom: 1px solid var(--buyer-gray-200);
    margin-bottom: 0;
    background: #fff;
    margin-top: 0;
    border-radius: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 0 2rem;
}

/* 覆蓋 main.css 中的 .nav fixed 樣式 */
.buyer-center-wrapper .nav {
    position: static !important;
    z-index: auto !important;
    top: auto !important;
}

.buyer-tabs .nav-link {
    border: none;
    color: var(--buyer-gray-600);
    padding: 1.25rem 2rem;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    font-size: 0.95rem;
}

.buyer-tabs .nav-link:hover {
    color: var(--buyer-primary);
    border-bottom-color: var(--buyer-primary);
    background: rgba(209, 8, 15, 0.05);
    transform: translateY(-1px);
}

.buyer-tabs .nav-link.active {
    color: var(--buyer-primary);
    background: rgba(209, 8, 15, 0.05);
    border-bottom-color: var(--buyer-primary);
    font-weight: 600;
}

/* 商家項目樣式 */
.buyer-merchant-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--buyer-gray-200);
    transition: all 0.3s ease;
}

.buyer-merchant-item:last-child {
    border-bottom: none;
}

.buyer-merchant-item:hover {
    background: rgba(209, 8, 15, 0.02);
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-radius: 8px;
}

.buyer-merchant-name {
    margin: 0 0 0.25rem 0;
    font-weight: 600;
    color: var(--buyer-dark);
    font-size: 1rem;
}

.buyer-merchant-date {
    color: var(--buyer-gray-500);
    font-size: 0.85rem;
}

/* 小型空白狀態 */
.buyer-empty-state-sm {
    padding: 2rem 1rem;
}

.buyer-empty-icon-sm {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.buyer-empty-text-sm {
    color: var(--buyer-gray-500);
    margin: 0;
    font-size: 0.9rem;
}

/* 訂單列表組件 */
.buyer-order-list {
    margin: -0.5rem 0;
}

.buyer-order-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--buyer-gray-200);
    transition: all 0.3s ease;
}

.buyer-order-item:last-child {
    border-bottom: none;
}

.buyer-order-item:hover {
    background: rgba(209, 8, 15, 0.02);
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-radius: 8px;
}

.buyer-order-info {
    flex: 1;
    margin-right: 1rem;
}

.buyer-order-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.buyer-order-id {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--buyer-dark);
    margin: 0;
}

.buyer-order-details {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.buyer-order-product {
    font-weight: 500;
    color: var(--buyer-dark);
    margin: 0;
    font-size: 0.9rem;
}

.buyer-order-merchant,
.buyer-order-date,
.buyer-order-amount {
    color: var(--buyer-gray-600);
    font-size: 0.8rem;
}

.buyer-order-separator {
    color: var(--buyer-gray-400);
    font-size: 0.7rem;
}

.buyer-order-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.buyer-order-footer {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--buyer-gray-200);
    margin-top: 1rem;
}

/* Badge 組件增強 */
.buyer-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.buyer-badge-success {
    background-color: var(--buyer-success);
    color: white;
}

.buyer-badge-warning {
    background-color: var(--buyer-warning);
    color: var(--buyer-dark);
}

.buyer-badge-danger {
    background-color: var(--buyer-danger);
    color: white;
}

.buyer-badge-info {
    background-color: var(--buyer-info);
    color: white;
}

.buyer-badge-primary {
    background-color: var(--buyer-primary);
    color: white;
}

/* 代幣中心組件 */
.buyer-coin-overview {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--buyer-primary), var(--buyer-secondary));
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: white;
}

.buyer-coin-total-amount {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.buyer-coin-total-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.buyer-coin-list-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--buyer-dark);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--buyer-gray-200);
}

.buyer-coin-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--buyer-gray-200);
    transition: all 0.3s ease;
}

.buyer-coin-item:last-child {
    border-bottom: none;
}

.buyer-coin-item:hover {
    background: rgba(209, 8, 15, 0.02);
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-radius: 8px;
}

.buyer-coin-merchant {
    flex: 1;
}

.buyer-coin-merchant-name {
    font-weight: 500;
    color: var(--buyer-dark);
    margin-bottom: 0.25rem;
    display: block;
}

.buyer-coin-balance {
    margin-top: 0.25rem;
}

.buyer-coin-amount {
    font-weight: 600;
    font-size: 0.9rem;
}

.buyer-coin-item-actions {
    display: flex;
    gap: 0.5rem;
}

/* 響應式調整 */
@media (max-width: 768px) {
    .buyer-coin-overview {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .buyer-coin-total-amount {
        font-size: 2rem;
    }

    .buyer-coin-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .buyer-coin-item-actions {
        align-self: stretch;
        justify-content: flex-end;
    }
}

/* Breadcrumb 導航 */
.buyer-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    margin: 0;
    padding: 0;
}

.buyer-breadcrumb-item {
    display: flex;
    align-items: center;
}

.buyer-breadcrumb-item + .buyer-breadcrumb-item::before {
    content: '/';
    margin: 0 0.5rem;
    color: var(--buyer-gray-500);
}

.buyer-breadcrumb-item a {
    color: var(--buyer-primary);
    text-decoration: none;
    font-size: 0.9rem;
}

.buyer-breadcrumb-item a:hover {
    text-decoration: underline;
}

.buyer-breadcrumb-item.active {
    color: var(--buyer-gray-600);
    font-size: 0.9rem;
}

/* 篩選器表單樣式 */
.buyer-filter-form {
    padding: 0.5rem 0;
}

.buyer-form-control-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    min-height: 38px;
}

.buyer-filter-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.buyer-filter-actions .buyer-btn {
    min-width: 70px;
    text-align: center;
}

/* 表格輔助樣式 */
.buyer-table-cell-nowrap {
    white-space: nowrap;
}

.buyer-table-cell-number {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.buyer-table-cell-ellipsis {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 分頁信息 */
.buyer-pagination-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.buyer-pagination-summary {
    font-size: 0.875rem;
    color: var(--buyer-gray-600);
}

/* Modal 組件 */
.buyer-modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
}

.buyer-modal-dialog {
    position: relative;
    max-width: 500px;
    margin: 3rem auto;
    background: var(--buyer-white);
    border-radius: var(--buyer-border-radius-lg);
    box-shadow: var(--buyer-shadow-lg);
    animation: buyer-modal-fade-in 0.3s ease-out;
}

.buyer-modal-lg {
    max-width: 800px;
}

.buyer-modal-xl {
    max-width: 1140px;
}

@keyframes buyer-modal-fade-in {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.buyer-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--buyer-gray-200);
    border-radius: var(--buyer-border-radius-lg) var(--buyer-border-radius-lg) 0 0;
    background: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
}

.buyer-modal-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--buyer-dark);
}

.buyer-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--buyer-gray-500);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.buyer-modal-close:hover {
    background-color: var(--buyer-gray-100);
    color: var(--buyer-gray-700);
}

.buyer-modal-body {
    padding: 2rem;
    max-height: 70vh;
    overflow-y: auto;
}

.buyer-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--buyer-gray-200);
    border-radius: 0 0 var(--buyer-border-radius-lg) var(--buyer-border-radius-lg);
    background-color: var(--buyer-gray-50);
}

body.buyer-modal-open {
    overflow: hidden;
}

/* 訂單明細專用樣式 */
.buyer-order-summary {
    background: linear-gradient(135deg, var(--buyer-gray-50) 0%, var(--buyer-white) 100%);
    border: 1px solid var(--buyer-gray-200);
    border-radius: var(--buyer-border-radius);
    padding: 1.5rem;
}

.buyer-order-info-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.buyer-order-info-item:last-child {
    margin-bottom: 0;
}

.buyer-order-info-item label {
    font-weight: 500;
    color: var(--buyer-gray-600);
    min-width: 80px;
    margin: 0;
}

.buyer-order-info-item span {
    color: var(--buyer-dark);
    font-weight: 500;
}

.buyer-shipping-info .buyer-card {
    border: none;
    box-shadow: none;
}

.buyer-shipping-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.buyer-shipping-item:last-child {
    margin-bottom: 0;
}

.buyer-shipping-item label {
    font-weight: 500;
    color: var(--buyer-gray-600);
    min-width: 80px;
    margin: 0;
    flex-shrink: 0;
}

.buyer-shipping-item span {
    color: var(--buyer-dark);
    font-weight: 500;
}

.buyer-table-sm th,
.buyer-table-sm td {
    padding: 0.75rem;
    font-size: 0.875rem;
}

/* Badge 中邊距輔助類 */
.buyer-ms-1 {
    margin-left: 0.25rem !important;
}

/* 網格間距輔助類 */
.buyer-g-3 {
    --gap: 1rem;
}

.buyer-g-3 > * {
    margin-bottom: var(--gap);
}

@media (min-width: 768px) {
    .buyer-g-3 {
        margin-left: calc(var(--gap) * -0.5);
        margin-right: calc(var(--gap) * -0.5);
    }

    .buyer-g-3 > * {
        padding-left: calc(var(--gap) * 0.5);
        padding-right: calc(var(--gap) * 0.5);
        margin-bottom: 0;
    }
}

/* 表單增強樣式 */
.buyer-form-control[type="date"] {
    position: relative;
}

.buyer-form-control[type="date"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    filter: invert(0.5);
}

.buyer-form-control[type="date"]::-webkit-calendar-picker-indicator:hover {
    filter: invert(0.3);
}

/* 訂單明細按鈕樣式 */
.buyer-order-details-btn {
    position: relative;
    padding-right: 1.5rem !important;
    overflow: visible !important;
}

.buyer-order-count-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    min-width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--buyer-primary);
    color: var(--buyer-white);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0;
    border: 3px solid var(--buyer-white);
    box-shadow: 0 3px 8px rgba(209, 8, 15, 0.4);
    line-height: 1;
    z-index: 10;
}

/* 載入動畫 */
.buyer-loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--buyer-gray-600);
    font-size: 0.9rem;
}

.buyer-loading-spinner i {
    font-size: 1.2rem;
    margin-right: 0.5rem;
}

.buyer-ml-2 {
    margin-left: 0.5rem !important;
}

.buyer-py-4 {
    padding-top: var(--buyer-spacing-4) !important;
    padding-bottom: var(--buyer-spacing-4) !important;
}

/* ====================================
   響應式設計 - 符合 ONEONELITE 框架
   ==================================== */

/* Tablet 樣式 (768px - 1024px) */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    .buyer-container {
        padding: 30px 1.5rem;  /* 左右增加邊距 */
        max-width: 100vw;
    }

    /* 買家中心主頁在 Tablet 的特殊樣式 */
    .buyer-center.index .buyer-container {
        padding-top: 0;
        padding-bottom: 30px;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .buyer-center-wrapper {
        padding: 0; /* 移除 padding，讓導航欄位緊貼頂部 */
        min-height: calc(100vh - 160px);
    }

    .buyer-tabs {
        padding: 0 1.5rem;  /* Tablet 版縮減 tabs 的左右邊距 */
    }

    .buyer-tabs .nav-link {
        padding: 0.85rem 1.2rem;
        font-size: 0.95rem;
    }

    .buyer-card-header,
    .buyer-card-body {
        padding: 1.25rem;
    }

    .buyer-row {
        margin: 0 -0.75rem;
    }

    .buyer-col {
        padding: 0 0.75rem;
    }

    /* Tablet 響應式網格覆蓋 */
    .buyer-col-md-1,
    .buyer-col-md-2,
    .buyer-col-md-3,
    .buyer-col-md-4,
    .buyer-col-md-6,
    .buyer-col-md-8,
    .buyer-col-md-12,
    .buyer-col-lg-3,
    .buyer-col-lg-4,
    .buyer-col-lg-6,
    .buyer-col-lg-8,
    .buyer-col-lg-9,
    .buyer-col-lg-12 {
        padding: 0 0.75rem;
    }
}

/* Mobile 樣式 (max-width: 767px) */
@media screen and (max-width: 767px) {
    .buyer-container {
        padding: 30px 1rem;  /* 手機版本使用 1rem 邊距 */
        max-width: 100vw;
    }

    /* 買家中心主頁在 Mobile 的特殊樣式 */
    .buyer-center.index .buyer-container {
        padding-top: 0;
        padding-bottom: 30px;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .buyer-center-wrapper {
        padding: 0; /* 移除 padding，讓導航欄位緊貼頂部 */
        min-height: calc(100vh - 140px);
    }

    .buyer-tabs {
        padding: 0 1rem;  /* Mobile 版更小的 tabs 左右邊距 */
        margin-top: 1rem;  /* 手機版 tab 導航與上方保持距離 */
    }

    .buyer-tabs .nav-link {
        padding: 0.75rem 0.8rem;
        font-size: 0.85rem;
    }

    .buyer-card-header,
    .buyer-card-body {
        padding: 1rem;
    }

    .buyer-row {
        margin: 0 -0.5rem;
    }

    .buyer-col {
        padding: 0 0.5rem;
    }

    /* 手機版佈局調整 */
    .buyer-col-lg-4 {
        order: 2;  /* 左欄（最近購買廠商）在手機版移到下方 */
    }

    .buyer-col-lg-8 {
        order: 1;  /* 右欄（會員資訊）在手機版保持在上方 */
        margin-bottom: 1.5rem;  /* 增加與下方的距離 */
    }

    /* Mobile 響應式網格覆蓋 */
    .buyer-col-1,
    .buyer-col-2,
    .buyer-col-3,
    .buyer-col-4,
    .buyer-col-6,
    .buyer-col-8,
    .buyer-col-12,
    .buyer-col-md-1,
    .buyer-col-md-2,
    .buyer-col-md-3,
    .buyer-col-md-4,
    .buyer-col-md-6,
    .buyer-col-md-8,
    .buyer-col-md-12,
    .buyer-col-lg-3,
    .buyer-col-lg-4,
    .buyer-col-lg-6,
    .buyer-col-lg-8,
    .buyer-col-lg-9,
    .buyer-col-lg-12 {
        padding: 0 0.5rem;
    }

    /* 表格響應式 */
    .buyer-table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .buyer-table {
        min-width: 600px;
    }

    /* 商家項目在手機上的樣式調整 */
    .buyer-merchant-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    /* 代幣卡片響應式 */
    .buyer-coin-balance-card {
        text-align: center;
        margin-bottom: 1rem;
    }

    /* Modal 響應式 */
    .buyer-modal-dialog {
        margin: 1rem;
        max-width: calc(100% - 2rem);
    }

    /* 篩選器在手機版的樣式調整 */
    .buyer-filter-form .buyer-row {
        margin: 0 -0.25rem;
    }

    .buyer-filter-form .buyer-row > [class*="buyer-col-"] {
        padding: 0 0.25rem;
        margin-bottom: 0.75rem;
    }

    .buyer-filter-actions {
        justify-content: stretch;
    }

    .buyer-filter-actions .buyer-btn {
        flex: 1;
        min-width: auto;
    }

    /* Modal 響應式 */
    .buyer-modal-dialog {
        margin: 1rem;
        max-width: calc(100% - 2rem);
    }

    .buyer-modal-lg {
        max-width: calc(100% - 2rem);
    }

    .buyer-modal-header,
    .buyer-modal-body,
    .buyer-modal-footer {
        padding: 1rem 1.5rem;
    }

    .buyer-modal-body {
        max-height: 60vh;
    }

    .buyer-order-info-item,
    .buyer-shipping-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .buyer-order-info-item label,
    .buyer-shipping-item label {
        min-width: auto;
        font-size: 0.875rem;
    }
}

/* 修正模態框溢出問題 - 移除負邊距，提高優先級 */
.buyer-modal .buyer-topup-merchant-info {
    margin: 0 0 1rem 0 !important;
}

.buyer-modal .buyer-topup-warning {
    margin: 1rem 0 0 0 !important;
}

/* 更高優先級的修正 */
div.buyer-modal div.buyer-topup-merchant-info {
    margin: 0 0 1rem 0 !important;
}

div.buyer-modal div.buyer-topup-warning {
    margin: 1rem 0 0 0 !important;
}