:root {
    --primary-blue: #2563EB;
    --dark-blue: #1E40AF;
    --light-blue: #3B82F6;
    --white: #FFFFFF;
    --light-gray: #F3F4F6;
    --text-gray: #4B5563;
    --border-gray: #E5E7EB;
    --danger-red: #EF4444;
    --font-sans: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --transition: 0.2s ease;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background-color: var(--light-gray);
    color: #333;
    line-height: 1.6;
    font-family: var(--font-sans);
    min-height: 100vh;
    padding-bottom: 80px;
}
a {
    text-decoration: none;
    color: #ffffff;
    transition: color var(--transition);
}
a:hover {
    color: red;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
.header {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 5px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}
.logo {
    font-size: 1.3rem;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
}
.user-info {
    display: flex;
    gap: 12px;
    align-items: center;
}
.user-info a {
    background-color: var(--dark-blue);
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
}
.user-info a:hover {
    background-color: #153a8a;
}
.main-nav {
    background-color: var(--white);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    padding: 0 1rem;
    overflow-x: auto;
}
.nav-container::-webkit-scrollbar {
    display: none;
}
.nav-item {
    padding: 12px 20px;
    color: var(--text-gray);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: all var(--transition);
}
.nav-item:hover,
.nav-item.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}
.nav-item.active {
    font-weight: bold;
}
.main-container {
    max-width: 1200px;
    margin: 0.5rem auto;
    padding: 0 1rem;
}
.page-title {
    color: var(--dark-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-gray);
}
.ls.modern-list {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.ls.modern-list .list-header {
    display: grid;
    grid-template-columns: 80px 1fr 120px 100px;
    padding: 15px 20px;
    background-color: #f8fafc;
    font-weight: 600;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border-gray);
}
.ls.modern-list .list-items {
    list-style: none;
}
.ls.modern-list .list-item {
    display: grid;
    grid-template-columns: 80px 1fr 120px 100px;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-gray);
    transition: background-color var(--transition);
    align-items: start;
}
.ls.modern-list .list-item:hover {
    background-color: #f9fafb;
}
.ls.modern-list .item-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
}
.ls.modern-list .item-title {
    font-weight: 500;
    color: var(--text-gray);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.4;
    max-height: 2.8em;
}
.ls.modern-list .item-time,
.ls.modern-list .item-rank {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 2.2;
}
.ls.modern-list .item-rank a {
    color: var(--text-gray);
}
.ls.modern-list .item-rank a:hover {
    color: var(--primary-blue);
}
.limit.modern-limit {
    background: var(--white);
    padding: 15px;
    border-radius: 8px;
    margin-top: 1rem;
    text-align: center;
    font-size: 0.95rem;
}
.limit.modern-limit span {
    font-weight: 600;
    color: var(--primary-blue);
}
.publish-form-container {
    background-color: var(--white);
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    padding: 15px 3px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-gray);
    font-size: 14px;
}
.form-control {
    width: 100%;
    padding: 15px 2px;
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    font-size: 13px;
    background-color: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}
select.form-control {
    height: auto;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%234B5563'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px;
    padding-right: 2.5rem;
}
.f_red {
    color: var(--danger-red);
    margin-left: 5px;
}
.editor-container {
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 1rem;
    position: relative;
    border: 1px solid var(--border-gray);
}
#content.dsn {
    display: none !important;
}
.submit-btn,
.btn-change-password {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
    width: 100%
}
.submit-btn:hover,
.btn-change-password:hover {
    background-color: var(--dark-blue);
}
.submit-btn:active,
.btn-change-password:active {
    transform: translateY(0);
}
.btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    background-color: var(--light-gray);
    cursor: pointer;
    font-size: 1rem;
    margin-left: 1rem;
    transition: background-color var(--transition);
}
.btn:hover {
    background-color: #e5e7eb;
}
.ai-button {
    background-color: #1890ff;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap;
}
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 8px 0;
}
.nav-list {
    display: flex;
    justify-content: space-around;
    list-style: none;
    padding: 10px 0;
    max-width: 1200px;
    margin: 0 auto;
}
.nav-item-bottom {
    text-align: center;
    flex: 1;
}
.nav-icon {
    width: 24px;
    height: 24px;
    display: block;
    margin: 0 auto 5px;
    fill: var(--text-gray);
}
.nav-item-bottom a {
    display: block;
    padding: 3px;
    color: var(--text-gray);
    font-size: 0.85rem;
}
.nav-item-bottom a:hover,
.nav-item-bottom.active a {
    color: var(--primary-blue);
}
.nav-item-bottom.active .nav-icon {
    fill: var(--primary-blue);
}
footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 2rem 1rem;
    margin-top: 2rem;
}
.footer-container {
    max-width: 1000px;
    margin: 0 auto;
    margin-bottom: 5px;
    font-size: 14px;
}
.pages {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 2rem 0;
    padding: 1rem;
    flex-wrap: wrap;
}
.pages a,
.pages strong {
    display: inline-block;
    min-width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    padding: 0 8px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 1rem;
    transition: all var(--transition);
}
.pages a {
    color: var(--text-gray);
    background-color: var(--white);
    border: 1px solid var(--border-gray);
}
.pages a:hover {
    background-color: var(--light-blue);
    color: var(--white);
    border-color: var(--light-blue);
}
.pages strong {
    background-color: var(--primary-blue);
    color: var(--white);
    border: 1px solid var(--primary-blue);
}
.pages span {
    color: var(--text-gray);
    padding: 0 8px;
}
@media (min-width: 769px) {
    .title-input-container {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .title-input-container input {
        flex: 1;
    }
    .ai-button {
        white-space: nowrap;
        align-self: flex-start;
    }
}
@media (max-width: 768px) {
    .header {
        padding: 8px 0;
    }
    .header-container {
        padding: 0 0.75rem;
    }
    .logo {
        font-size: 1.1rem;
        margin-left: -10px;
    }
    .user-info {
        gap: 8px;
    }
    .user-info a {
        padding: 4px 8px;
        font-size: 0.8rem;
    }
    .nav-item {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    .main-container {
        padding: 2px;
        margin: 0.25rem auto;
    }
    .page-title {
        font-size: 1.2rem;
        margin-bottom: 0.75rem;
    }
    .ls.modern-list .list-header {
        grid-template-columns: 40px 1fr 80px 70px;
        padding: 10px 12px;
        font-size: 0.8rem;
        gap: 8px;
    }
    .ls.modern-list .list-item {
        padding: 5px;
        gap: 8px;
        align-items: start;
    }
    .ls.modern-list .item-thumb {
        width: 35px;
        height: 35px;
        border-radius: 4px;
    }
    .ls.modern-list .item-title {
        font-size: 0.85rem;
        line-height: 1.3;
        -webkit-line-clamp: 2;
        max-height: 2.6em;
    }
    .ls.modern-list .item-time,
    .ls.modern-list .item-rank {
        font-size: 0.75rem;
        line-height: 1.2;
        width: 75px;
        line-height: 1.8;
    }
    .ls.modern-list .item-rank b {
        font-size: 0.7rem;
    }
    .limit.modern-limit {
        padding: 12px;
        font-size: 0.85rem;
        margin-top: 0.75rem;
    }
    .bottom-nav {
        padding: 6px 0;
    }
    .nav-list {
        padding: 8px 0;
    }
    .nav-icon {
        width: 20px;
        height: 20px;
        margin-bottom: 3px;
    }
    .nav-item-bottom a {
        font-size: 0.8rem;
    }
    .pages {
        gap: 4px;
    }
    .pages a,
    .pages strong {
        min-width: 34px;
        height: 34px;
        line-height: 34px;
        font-size: 0.9rem;
    }
    .form-group label {
        display: block;
    }
    .form-group > div {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .form-group button {
        align-self: flex-start;
        width: 100%;
    }
    footer {
        padding: 1.5rem 0.75rem;
    }
    .title-input-container {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .ai-button {
        align-self: flex-start;
        white-space: normal;
        padding: 8px 12px;
        font-size: 0.9rem;
        width: 100%;
    }
    .form-group > div {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .ai-button {
        width: 100%;
    }
}
@media (max-width: 480px) {
    .ls.modern-list .list-header {
        grid-template-columns: 35px 1fr 75px 65px;
        padding: 8px 10px;
        font-size: 0.75rem;
        gap: 6px;
    }
    .ls.modern-list .list-item {
        grid-template-columns: 35px 1fr 75px 65px;
        padding: 10px 3px;
        gap: 6px;
    }
    .ls.modern-list .item-thumb {
        width: 30px;
        height: 30px;
    }
    .ls.modern-list .item-title {
        font-size: 0.8rem;
        line-height: 1.25;
        -webkit-line-clamp: 2;
        max-height: 2.5em;
    }
    .ls.modern-list .item-time,
    .ls.modern-list .item-rank {
        font-size: 0.7rem;
        width: 75px;
        line-height: 1.8;
    }
    .limit.modern-limit {
        font-size: 0.8rem;
        padding: 10px;
    }
    .nav-icon {
        width: 18px;
        height: 18px;
    }
    .nav-item-bottom a {
        font-size: 0.75rem;
    }
    .pages {
        gap: 2px;
    }
    .pages a,
    .pages strong {
        min-width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 0.8rem;
    }
}
@media (max-width: 360px) {
    .ls.modern-list .list-header {
        grid-template-columns: 30px 1fr 70px 60px;
        padding: 6px 8px;
        font-size: 0.7rem;
    }
    .ls.modern-list .list-item {
        grid-template-columns: 30px 1fr 70px 60px;
        padding: 6px 8px;
    }
    .ls.modern-list .item-thumb {
        width: 25px;
        height: 25px;
    }
    .ls.modern-list .item-title {
        font-size: 0.75rem;
    }
    .ls.modern-list .item-time,
    .ls.modern-list .item-rank {
        font-size: 0.65rem;
    }
}