* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, "Microsoft YaHei", sans-serif;
    background: #f5f6fa;
    color: #222;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 1100px;
    max-width: 92%;
    margin: 0 auto;
}

.site-header {
    background: #111827;
    color: white;
    padding: 16px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    margin: 0;
    font-size: 22px;
}

.logo a {
    color: white;
}

.nav {
    display: flex;
    align-items: center;
    gap: 18px;
}

.nav a {
    color: #e5e7eb;
}

.nav .user {
    color: #93c5fd;
}

.main {
    margin-top: 30px;
}

.card {
    background: white;
    padding: 24px;
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.card h2 {
    margin-top: 0;
}

.meta {
    color: #666;
    font-size: 14px;
    margin-bottom: 12px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    background: #e0ecff;
    color: #1d4ed8;
    border-radius: 999px;
    font-size: 13px;
}

.btn {
    display: inline-block;
    padding: 8px 14px;
    background: #2563eb;
    color: white;
    border-radius: 8px;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #1d4ed8;
    text-decoration: none;
}

.btn-danger {
    background: #dc2626;
}

.btn-danger:hover {
    background: #b91c1c;
}

form {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

input,
textarea,
select {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 15px;
}

button {
    margin-top: 10px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.search-box input,
.search-box select {
    margin-top: 0;
}

.auth-wrapper {
    min-height: 70vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.auth-card {
    width: 420px;
    max-width: 100%;
    background: white;
    padding: 36px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.auth-card h1 {
    margin: 0 0 10px;
    text-align: center;
}

.auth-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 28px;
}

.auth-form {
    box-shadow: none;
    padding: 0;
    background: transparent;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.auth-btn {
    width: 100%;
    margin-top: 8px;
    font-size: 16px;
}

.auth-footer {
    text-align: center;
    margin-top: 22px;
    color: #666;
}

.error-message {
    background: #fee2e2;
    color: #b91c1c;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 18px;
}

.hero-card {
    background: linear-gradient(135deg, #111827, #1d4ed8);
    color: white;
    padding: 48px;
    border-radius: 18px;
    margin-bottom: 28px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.hero-card h1 {
    margin-top: 0;
    font-size: 36px;
}

.hero-card p {
    font-size: 17px;
    color: #e5e7eb;
}

.hero-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
}

.page-header h1 {
    margin-bottom: 6px;
}

.page-header p {
    color: #666;
    margin: 0;
}

.note-card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.note-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.read-more {
    display: inline-block;
    margin-top: 10px;
    font-weight: 600;
}

.detail-card h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.note-content {
    line-height: 1.8;
    margin-top: 20px;
}

.action-row {
    display: flex;
    gap: 10px;
    margin-top: 24px;
    align-items: center;
}

.btn-light {
    background: #e5e7eb;
    color: #111827;
}

.btn-light:hover {
    background: #d1d5db;
}

.comment-item {
    border-bottom: 1px solid #e5e7eb;
    padding: 12px 0;
}

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

.form-page {
    width: 760px;
    max-width: 100%;
    margin: 0 auto;
}

.plain-form {
    box-shadow: none;
    padding: 0;
    background: transparent;
}

.danger-card {
    border-left: 5px solid #dc2626;
}

.empty-card {
    text-align: center;
    color: #666;
}

@media (max-width: 800px) {
    .header-inner {
        flex-direction: column;
        gap: 14px;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .search-box {
        flex-direction: column;
    }

    .hero-card {
        padding: 32px 24px;
    }

    .hero-card h1 {
        font-size: 28px;
    }
}

.auth-input {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 15px;
    outline: none;
}

.auth-input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.error-message {
    background: #fee2e2;
    color: #b91c1c;
    padding: 8px 10px;
    border-radius: 8px;
    margin: 8px 0 0;
    font-size: 14px;
}

.switch-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f9fafb;
    padding: 16px;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    margin-top: 8px;
}

.switch-row strong {
    font-size: 16px;
}

.switch-row .meta {
    margin: 6px 0 0;
    font-size: 14px;
    color: #6b7280;
}

.switch {
    position: relative;
    display: inline-block;
    width: 54px;
    height: 30px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
    margin: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: #d1d5db;
    transition: 0.25s;
    border-radius: 999px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.25s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.switch input:checked + .slider {
    background-color: #2563eb;
}

.switch input:checked + .slider:before {
    transform: translateX(24px);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 30px 0;
}

.pagination a {
    padding: 8px 14px;
    background: #2563eb;
    color: white;
    border-radius: 8px;
}

.pagination a:hover {
    background: #1d4ed8;
    text-decoration: none;
}

.pagination span {
    color: #555;
}

.inline-form {
    display: inline;
    background: transparent;
    box-shadow: none;
    padding: 0;
}

.text-danger-btn {
    border: none;
    background: transparent;
    color: #dc2626;
    cursor: pointer;
    padding: 0;
    font-size: 14px;
}

.text-danger-btn:hover {
    text-decoration: underline;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 24px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 14px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    text-align: center;
}

.stat-card h2 {
    margin: 0;
    font-size: 34px;
    color: #2563eb;
}

.stat-card p {
    margin: 8px 0 0;
    color: #666;
}

.mini-note {
    padding: 14px 0;
    border-bottom: 1px solid #e5e7eb;
}

.mini-note:last-child {
    border-bottom: none;
}

.mini-note h3 {
    margin: 0 0 8px;
}

@media (max-width: 800px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.markdown-body {
    line-height: 1.8;
    font-size: 16px;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 12px;
}

.markdown-body p {
    margin: 12px 0;
}

.markdown-body pre {
    background: #111827;
    color: #e5e7eb;
    padding: 16px;
    border-radius: 10px;
    overflow-x: auto;
}

.markdown-body code {
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 5px;
    font-size: 14px;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.markdown-body blockquote {
    border-left: 4px solid #2563eb;
    padding-left: 12px;
    color: #555;
    background: #f9fafb;
    margin: 16px 0;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid #e5e7eb;
    padding: 8px 10px;
}