:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --text: #1d2129;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #059669;
    --warning-bg: #fef3c7;
    --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.1);
    --radius: 10px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    line-height: 1.6;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3 {
    line-height: 1.3;
}

.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 56px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 13px;
}

/* 前台导航 */
.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 14px 0;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
    color: var(--text);
    letter-spacing: 0.3px;
}

.site-logo {
    display: block;
    width: 30px;
    height: 30px;
    border-radius: 8px;
}

.site-brand:hover {
    text-decoration: none;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: 14px;
}

.site-nav a {
    color: var(--muted);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--primary);
    text-decoration: none;
}

.header-search {
    margin-left: auto;
    display: flex;
    gap: 8px;
}

.header-search input {
    width: 220px;
}

/* 首页 */
.hero {
    background: linear-gradient(135deg, #eff6ff, #f8fafc);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    margin-bottom: 28px;
}

.hero h1 {
    margin: 0 0 8px;
    font-size: 30px;
}

.hero p {
    margin: 0 0 20px;
    color: var(--muted);
}

.search-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.search-form input {
    flex: 1 1 280px;
}

.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin: 28px 0 12px;
}

.section-head h2 {
    margin: 0;
    font-size: 20px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin: 18px 0 8px;
}

.category-grid-gpu {
    margin-top: 14px;
}

.category-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
    color: var(--text);
}

.category-card:hover {
    border-color: var(--primary);
    text-decoration: none;
}

.category-card strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
}

.category-card span {
    color: var(--muted);
    font-size: 13px;
}

/* 表格 */
.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

th {
    background: #f9fafb;
    color: var(--muted);
    font-weight: 600;
    font-size: 13px;
}

tbody tr:hover {
    background: #f9fafb;
}

tbody tr:last-child td {
    border-bottom: none;
}

.rank-index {
    color: var(--muted);
    font-variant-numeric: tabular-nums;
    width: 64px;
}

.score {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.num {
    font-variant-numeric: tabular-nums;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    background: #eef2ff;
    color: #4338ca;
    line-height: 1.5;
}

.badge-primary {
    background: #dcfce7;
    color: #166534;
}

.badge-muted {
    background: #f3f4f6;
    color: var(--muted);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover {
    border-color: #d1d5db;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

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

.btn-danger {
    color: var(--danger);
    border-color: #fecaca;
    background: #fff1f2;
}

.btn-danger:hover {
    background: #fee2e2;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 13px;
}

.btn-compare {
    white-space: nowrap;
    color: var(--primary);
    border-color: #bfdbfe;
    background: #eff6ff;
}

.btn-compare:hover {
    background: #dbeafe;
    border-color: #93c5fd;
}

.btn-compare .compare-count {
    font-variant-numeric: tabular-nums;
}

[hidden] {
    display: none !important;
}

/* 列表行内操作 */
.row-action {
    width: 1%;
    text-align: right;
}

.row-action .btn {
    opacity: 0;
    transition: opacity 0.12s ease;
}

tr:hover .row-action .btn,
tr:focus-within .row-action .btn {
    opacity: 1;
}

.row-action .btn.is-added {
    color: var(--success);
    border-color: #a7f3d0;
    background: #ecfdf5;
}

/* 输入框 */
input[type="text"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 8px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    font: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #bfdbfe;
    border-color: var(--primary);
}

label {
    display: block;
    font-size: 13px;
    color: var(--muted);
}

label > input,
label > select,
label > textarea {
    margin-top: 4px;
}

.stack-form {
    display: grid;
    gap: 14px;
}

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
}

.checkbox-label input {
    width: auto;
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    font-size: 14px;
}

/* Tab 切换 */
.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}

.tabs a {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--muted);
    font-size: 13px;
}

.tabs a:hover {
    border-color: var(--primary);
    text-decoration: none;
}

.tabs a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* 空状态 */
.empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--muted);
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* 提示 */
.alert {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 14px;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-warning {
    background: var(--warning-bg);
    color: #92400e;
    border: 1px solid #fde68a;
}

/* 详情页 */
.detail-head {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 24px;
}

.cpu-image {
    width: 180px;
    height: 180px;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px;
}

.detail-title h1 {
    margin: 0 0 6px;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 18px;
}

.spec-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
}

.spec-group h2 {
    margin: 0 0 12px;
    font-size: 16px;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 7px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-row dt {
    color: var(--muted);
    flex: 0 0 42%;
}

.spec-row dd {
    margin: 0;
    text-align: right;
}

/* 跑分与条形图 */
.benchmark-list {
    display: grid;
    gap: 12px;
}

.benchmark-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
}

.benchmark-item.is-primary {
    border-color: #86efac;
    background: #f0fdf4;
}

.benchmark-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.benchmark-score {
    font-size: 20px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.bar {
    height: 8px;
    background: #eef2f7;
    border-radius: 999px;
    overflow: hidden;
}

.bar > span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #60a5fa, #2563eb);
    border-radius: 999px;
}

details > summary {
    cursor: pointer;
    color: var(--muted);
    font-size: 13px;
    margin-top: 8px;
}

/* 对比 */
.compare-table td,
.compare-table th {
    white-space: normal;
}

.diff-cell {
    background: #fffbeb;
}

/* 后台 */
.admin-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    background: #111827;
    color: #e5e7eb;
    padding: 12px 24px;
    font-size: 14px;
}

.admin-brand {
    font-weight: 700;
    color: #fff;
}

.admin-nav a {
    color: #cbd5e1;
}

.admin-nav a:hover {
    color: #fff;
    text-decoration: none;
}

.admin-nav .inline-form {
    margin-left: auto;
}

.inline-form {
    display: inline;
}

.link-button {
    background: none;
    border: none;
    color: #cbd5e1;
    font: inherit;
    cursor: pointer;
    padding: 0;
}

.link-button:hover {
    color: #fff;
}

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #111827;
}

.login-card {
    width: min(380px, calc(100% - 32px));
    background: var(--surface);
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.login-card h1 {
    margin: 0 0 4px;
    font-size: 24px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 20px 0;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}

.stat-value {
    display: block;
    font-size: 30px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--muted);
    font-size: 13px;
}

.form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px 18px;
}

.form-grid .span-full {
    grid-column: 1 / -1;
}

.field-error {
    color: var(--danger);
    font-size: 12px;
    margin-top: 4px;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 16px;
}

.toolbar form {
    display: flex;
    gap: 8px;
    flex: 1 1 260px;
}

.toolbar input {
    flex: 1;
}

@media (max-width: 720px) {
    .hero {
        padding: 24px;
    }

    .hero h1 {
        font-size: 24px;
    }

    .detail-head {
        flex-direction: column;
    }

    .cpu-image {
        width: 100%;
        height: 160px;
    }

    .site-header .container {
        flex-wrap: wrap;
        gap: 12px;
    }

    .header-search {
        margin-left: 0;
        width: 100%;
    }

    .header-search input {
        width: 100%;
        flex: 1;
    }

    .btn-compare {
        width: 100%;
        justify-content: center;
    }

    .row-action .btn {
        opacity: 1;
    }
}

/* 性能跑分：PassMark 两项左右布局，其他面板在下方 */
.benchmark-grid-primary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.benchmark-grid-other {
    display: grid;
    gap: 18px;
    margin-top: 18px;
}

/* 列表中的名称与操作按钮 */
.cpu-name-action {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.cpu-name-action .btn {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

tr:hover .cpu-name-action .btn,
tr:focus-within .cpu-name-action .btn,
.cpu-name-action .btn:focus {
    opacity: 1;
    pointer-events: auto;
}

@media (hover: none) {
    .cpu-name-action .btn {
        opacity: 1;
        pointer-events: auto;
    }
}

@media (max-width: 900px) {
    .benchmark-grid-primary {
        grid-template-columns: 1fr;
    }
}

/* CPU / GPU 双域导航 */
.nav-group {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding-right: 16px;
    border-right: 1px solid var(--border);
}

.nav-group:last-child {
    border-right: none;
    padding-right: 0;
}

.nav-group-label {
    color: var(--text);
    font-weight: 700;
}

.nav-group-label:hover,
.nav-group-label.active {
    color: var(--primary);
    text-decoration: none;
}

@media (max-width: 900px) {
    .nav-group {
        border-right: none;
        padding-right: 0;
    }
}