/* ==================== */
/* 通用页面样式         */
/* ==================== */
.page-wrap {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-content {
    flex: 1;
    padding-top: 20px;
    padding-bottom: 4rem;
}

.page-header {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--darker-bg), var(--dark-bg));
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(59,130,246,.12) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(139,92,246,.12) 0%, transparent 50%);
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    background: linear-gradient(135deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-gray);
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 2.5rem 0;
}

.section-tight {
    padding: 0;
}

.env-page .section {
    padding: 3rem 0;
}

.admin-page .section {
    padding: 0;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* ==================== */
/* 卡片                 */
/* ==================== */
.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    transition: all .3s ease;
}

.card:hover {
    border-color: rgba(59,130,246,.3);
}

.card h3 {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: .6rem;
}

.card p, .card li {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ==================== */
/* 表单                 */
/* ==================== */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    color: var(--text-gray);
    font-size: .9rem;
    margin-bottom: .5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: .8rem 1rem;
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 10px;
    color: var(--text-light);
    font-size: .95rem;
    transition: all .3s ease;
    outline: none;
    box-sizing: border-box;
    font-family: inherit;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #475569;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
    background: rgba(255,255,255,.08);
}

.form-group select option {
    background: var(--card-bg);
    color: var(--text-light);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-error {
    color: #ef4444;
    font-size: .9rem;
    padding: .6rem .8rem;
    background: rgba(239,68,68,.1);
    border-radius: 8px;
    border: 1px solid rgba(239,68,68,.2);
    display: none;
}

.form-success {
    color: #22c55e;
    font-size: .9rem;
    padding: .6rem .8rem;
    background: rgba(34,197,94,.1);
    border-radius: 8px;
    border: 1px solid rgba(34,197,94,.2);
    display: none;
}

.notice {
    background: rgba(59,130,246,.08);
    border: 1px solid rgba(59,130,246,.2);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    color: #93c5fd;
    margin-bottom: 1.5rem;
}

.notice-compact {
    margin-bottom: 0;
}

.notice ul {
    margin: 0;
    padding-left: 1.2rem;
}

.notice li {
    margin: .4rem 0;
}

/* ==================== */
/* 表格                 */
/* ==================== */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: .95rem;
}

th, td {
    padding: .9rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

th {
    color: var(--text-gray);
    font-weight: 600;
    background: rgba(255,255,255,.03);
}

td {
    color: var(--text-light);
}

tr:hover td {
    background: rgba(255,255,255,.02);
}

code {
    background: rgba(255,255,255,.08);
    padding: .2rem .5rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    color: #93c5fd;
    font-size: .9em;
}

.code-block {
    background: rgba(0,0,0,.35);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 12px;
    padding: 1.2rem;
    font-family: 'Courier New', monospace;
    color: #93c5fd;
    overflow-x: auto;
    margin: 1rem 0;
    position: relative;
}

/* ==================== */
/* 标签                 */
/* ==================== */
.tag {
    display: inline-flex;
    align-items: center;
    padding: .25rem .7rem;
    border-radius: 50px;
    font-size: .8rem;
    font-weight: 600;
    margin-right: .4rem;
}

.tag-primary {
    background: rgba(59,130,246,.15);
    color: #60a5fa;
    border: 1px solid rgba(59,130,246,.3);
}

.tag-success {
    background: rgba(34,197,94,.15);
    color: #22c55e;
    border: 1px solid rgba(34,197,94,.3);
}

.tag-warning {
    background: rgba(234,179,8,.15);
    color: #eab308;
    border: 1px solid rgba(234,179,8,.3);
}

.tag-centos {
    background: rgba(59,130,246,.15);
    color: #60a5fa;
}

.tag-ubuntu {
    background: rgba(139,92,246,.15);
    color: #a78bfa;
}

.tag-mysql {
    background: rgba(34,197,94,.15);
    color: #22c55e;
}

.tag-redis {
    background: rgba(239,68,68,.15);
    color: #ef4444;
}

.tag-mongo {
    background: rgba(234,179,8,.15);
    color: #eab308;
}

/* ==================== */
/* 网格布局             */
/* ==================== */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* ==================== */
/* 功能项               */
/* ==================== */
.feature-item {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.8rem;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all .3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: rgba(59,130,246,.3);
}

.feature-item .icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.feature-item h4 {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: .6rem;
}

.feature-item p {
    color: var(--text-gray);
    font-size: .9rem;
    line-height: 1.7;
}

/* ==================== */
/* 截图预览             */
/* ==================== */
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.screenshot-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all .3s ease;
}

.screenshot-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59,130,246,.3);
}

.screenshot-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid var(--border-color);
}

.screenshot-card .info {
    padding: 1rem;
}

.screenshot-card h4 {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: .3rem;
}

.screenshot-card p {
    color: var(--text-gray);
    font-size: .85rem;
}

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0,0,0,.6);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--text-gray);
    font-size: 2.5rem;
    cursor: pointer;
    transition: color .3s;
}

.lightbox-close:hover {
    color: var(--text-light);
}

/* ==================== */
/* 统计卡片             */
/* ==================== */
.stat-card {
    background: rgba(255,255,255,.05);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,.06);
}

.stat-card .number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card .label {
    color: var(--text-gray);
    font-size: .9rem;
    margin-top: .3rem;
}

/* ==================== */
/* 功能特性页专用       */
/* ==================== */
.feature-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

.feature-detail:nth-child(even) {
    direction: rtl;
}

.feature-detail:nth-child(even) > * {
    direction: ltr;
}

.feature-detail-text h3 {
    font-size: 1.6rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.feature-detail-text p {
    color: var(--text-gray);
    line-height: 1.9;
    font-size: 1.05rem;
}

.feature-detail-img {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all .3s ease;
}

.feature-detail-img:hover {
    border-color: rgba(59,130,246,.3);
    transform: scale(1.01);
}

.feature-detail-img img {
    width: 100%;
    height: auto;
    display: block;
}

/* ==================== */
/* 下载页专用           */
/* ==================== */
.download-card {
    text-align: center;
    padding: 3rem 2rem;
}

.download-card-compact {
    padding-top: 2rem;
}

.env-single-card {
    margin-bottom: 1.5rem;
}

.env-single-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.env-single-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--text-light);
}

.env-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: #fff;
    border-radius: 50%;
    font-size: .85rem;
    font-weight: 700;
}

.env-components {
    margin-bottom: 1rem;
}

.env-steps {
    padding-left: 1.5rem;
    color: var(--text-gray);
    font-size: .95rem;
    line-height: 1.9;
    margin: 1rem 0;
}

.env-steps li {
    margin: .4rem 0;
}

.download-card .version {
    display: inline-block;
    background: rgba(59,130,246,.1);
    border: 1px solid rgba(59,130,246,.3);
    padding: .4rem 1.2rem;
    border-radius: 50px;
    color: #60a5fa;
    margin-bottom: 1.5rem;
}

/* ==================== */
/* 后台管理页专用       */
/* ==================== */
.admin-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
}

.admin-tab {
    background: transparent;
    border: none;
    color: var(--text-gray);
    padding: 0.7rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.admin-tab:hover {
    color: var(--text-light);
    background: rgba(255,255,255,0.05);
}

.admin-tab.active {
    color: var(--accent-color);
    background: rgba(59,130,246,0.12);
    font-weight: 600;
}

.admin-panel {
    display: none;
    animation: adminFadeIn .25s ease;
}

.admin-panel.active {
    display: block;
}

@keyframes adminFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.admin-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.admin-panel-head h3 {
    font-size: 1.2rem;
    color: var(--text-light);
    margin: 0;
}

.admin-stat-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.8rem;
}

.admin-stat {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    padding: 1rem 0.6rem;
    text-align: center;
}

.admin-stat .num {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.3rem;
}

.admin-stat .lbl {
    color: var(--text-gray);
    font-size: 0.8rem;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.admin-list-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.7rem 1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
}

.admin-list-item > span:first-child {
    color: var(--text-gray);
    min-width: 100px;
}

.admin-list-item > code {
    flex: 1;
}

.admin-list-item > .tag {
    flex: 1;
}

.admin-action-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.8rem;
}

.admin-action {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px;
    padding: 1rem 0.6rem;
    color: var(--text-light);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
    font-family: inherit;
}

.admin-action:hover {
    background: rgba(59,130,246,0.1);
    border-color: rgba(59,130,246,0.3);
    transform: translateY(-2px);
}

.admin-action .ico {
    font-size: 1.6rem;
    margin-bottom: 0.4rem;
}

.admin-action .t {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.admin-action .d {
    color: var(--text-gray);
    font-size: 0.75rem;
}

.btn-mini {
    display: inline-block;
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.3);
    color: #60a5fa;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-mini:hover {
    background: rgba(59,130,246,0.2);
    color: #93c5fd;
}

.admin-info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    font-size: 0.95rem;
}

.admin-info-table td {
    padding: 0.7rem 0.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.admin-info-table td:first-child {
    color: var(--text-gray);
    width: 130px;
}

.admin-info-table tr:last-child td {
    border-bottom: none;
}

.admin-form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.admin-form-row .form-group {
    margin-bottom: 0;
}

.admin-feedback-card {
    margin-top: 1rem;
}

.admin-footer-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin: 1rem 0 2rem;
    padding: 1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    align-items: center;
}

.admin-footer-actions::before {
    content: '常用入口：';
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-right: 0.5rem;
}

@media (max-width: 900px) {
    .admin-stat-grid,
    .admin-action-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .admin-form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .admin-stat-grid,
    .admin-action-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==================== */
/* 响应式               */
/* ==================== */
@media (max-width: 900px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .feature-detail {
        grid-template-columns: 1fr;
    }

    .feature-detail:nth-child(even) {
        direction: ltr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .page-content {
        padding-top: 80px;
    }

    .section {
        padding: 2.5rem 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .card {
        padding: 1.5rem;
    }

    .screenshot-grid {
        grid-template-columns: 1fr;
    }
}