:root {
    --primary-gradient: linear-gradient(135deg, #ff6b9d, #4facfe);
    --primary: #ff6b9d;
    --primary-dark: #ec4899;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1f2937;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --danger: #ef4444;
    --success: #10b981;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--primary-dark);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

nav {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
}

.nav-links a:hover {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

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

.search-form input {
    padding: 8px 15px;
    border: 1px solid var(--border);
    border-radius: 20px;
    width: 250px;
    outline: none;
}

.search-form input:focus {
    border-color: #ff6b9d;
    box-shadow: 0 0 0 2px rgba(255, 107, 157, 0.2);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}

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

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

/* ===== 通用作品网格 (用于个人主页等) ===== */
.image-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 24px !important;
    padding: 20px 0 !important;
    width: 100%;
}

.image-card {
    display: flex !important;
    flex-direction: row !important;
    text-decoration: none !important;
    color: inherit !important;
    transition: transform 0.2s !important;
    width: 100%;
    height: 180px;
}

.image-card:hover {
    transform: translateY(-4px) !important;
}

.image-card img {
    width: 160px !important;
    height: 100% !important;
    object-fit: cover !important;
    display: block !important;
    flex-shrink: 0 !important;
}

.image-card .info {
    flex: 1 !important;
    padding: 16px !important;
    display: flex !important;
    flex-direction: column !important;
    min-width: 0 !important;
    overflow: hidden !important;
}

.image-card .title {
    font-size: 16px !important;
    font-weight: 700 !important;
    margin-bottom: 8px !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    color: var(--text) !important;
}

.image-card .author {
    color: var(--text-light) !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    margin-bottom: 8px !important;
    display: block !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.image-card .author:hover {
    color: var(--primary) !important;
}

.image-card .stats {
    display: flex !important;
    gap: 12px !important;
    font-size: 12px !important;
    color: var(--text-light) !important;
    margin-bottom: 10px !important;
}

.image-card .tags {
    margin-top: auto !important;
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
}

/* ===== 首页作品网格 ===== */
.home-container {
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 24px;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.home-card {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    width: 100%;
    height: 180px;
    cursor: pointer;
}

.home-card:hover {
    transform: translateY(-4px);
}

.home-card-image-link {
    display: block;
    width: 160px;
    min-width: 160px;
    flex-shrink: 0;
    overflow: hidden;
    text-decoration: none;
    height: 100%;
}

.home-card-image-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.home-card-info {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

.home-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 8px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-decoration: none;
    display: block;
}

.home-card-title:hover {
    color: var(--primary);
}

.home-card-author {
    font-size: 13px;
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.home-card-author:hover {
    text-decoration: underline;
}

.home-card-stats {
    display: flex;
    gap: 12px;
    margin-bottom: 10px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--text-light);
}

.stat-item .icon {
    width: 16px;
    height: 16px;
}

.home-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
}

.tag {
    background: rgba(255, 107, 157, 0.1);
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.tag:hover {
    background: var(--primary);
    color: white;
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
    font-size: 16px;
}

/* ===== 响应式 - 手机端 (不影响电脑端) ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }

    nav {
        padding: 10px 0;
    }

    nav .container {
        flex-wrap: wrap;
        gap: 8px;
    }

    .search-form {
        order: 3;
        width: 100%;
    }

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

    .logo {
        font-size: 20px;
    }

    .nav-links {
        gap: 12px;
        font-size: 14px;
    }

    .work-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 0;
    }

    .home-card {
        flex-direction: column !important;
        height: auto;
        background: var(--card-bg);
        border-radius: 12px;
        overflow: hidden;
    }

    .home-card-image-link {
        width: 100% !important;
        min-width: unset !important;
        height: 140px !important;
        flex-shrink: 0;
    }

    .home-card-image-link img {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
        display: block !important;
    }

    .home-card-info {
        padding: 10px;
    }

    .home-card-title {
        font-size: 13px;
    }

    .home-card-stats {
        font-size: 12px;
        gap: 6px;
    }

    .home-card-tags {
        display: none;
    }

    .section-title {
        font-size: 20px;
        margin-bottom: 16px;
    }

    .home-container {
        padding: 20px 12px;
    }

    .image-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
        padding: 12px 0 !important;
    }

    .image-card {
        flex-direction: column !important;
        height: auto !important;
        background: var(--card-bg);
        border-radius: 12px;
        overflow: hidden;
    }

    a.image-card {
        display: flex !important;
        text-decoration: none;
        color: inherit;
    }

    a.image-card > img {
        width: 100% !important;
        min-width: unset !important;
        height: 160px !important;
        object-fit: cover !important;
        flex-shrink: 0 !important;
    }

    .image-card > a {
        width: 100% !important;
        min-width: unset !important;
        height: 160px !important;
        flex-shrink: 0 !important;
    }

    .image-card img {
        width: 100% !important;
        min-width: unset !important;
        height: 100% !important;
        object-fit: cover !important;
        display: block !important;
    }

    .image-card .info {
        padding: 12px !important;
    }

    .image-card .title {
        font-size: 14px !important;
    }

    .image-card .tags {
        display: none !important;
    }

    .form-container {
        max-width: 100%;
        margin: 20px 0;
        padding: 24px 20px;
        border-radius: 12px;
    }

    .form-container h2 {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: 10px 14px;
        font-size: 14px;
    }

    .detail-container {
        display: block !important;
        padding: 16px 0;
    }

    .detail-image {
        width: 100%;
        margin-bottom: 16px;
    }

    .detail-image img {
        width: 100% !important;
        height: auto !important;
        display: block !important;
        border-radius: 8px;
    }

    .detail-sidebar {
        padding: 20px;
    }

    .detail-info h1 {
        font-size: 20px;
    }

    .detail-actions {
        flex-wrap: wrap;
        gap: 10px;
    }

    .action-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .comment-form textarea {
        padding: 12px;
        font-size: 14px;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        padding: 24px;
        gap: 16px;
    }

    .profile-avatar {
        width: 80px;
        height: 80px;
    }

    .stats {
        justify-content: center;
        gap: 20px;
    }

    .stat .number {
        font-size: 20px;
    }

    .messages {
        left: 12px;
        right: 12px;
        top: 70px;
    }

    .message {
        padding: 12px 16px;
        font-size: 14px;
    }

    .comment.reply {
        margin-left: 16px !important;
        padding-left: 10px !important;
    }

    /* ===== 编辑页面 ===== */
    .edit-layout {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
        padding: 16px 0 !important;
    }

    .edit-layout > div {
        padding: 16px !important;
    }

    .edit-layout h3 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    /* ===== 个人主页 ===== */
    .profile-header {
        min-height: auto !important;
        margin: 16px 0 !important;
    }

    .profile-blur, .profile-overlay {
        display: none !important;
    }

    .profile-content {
        position: relative !important;
        padding: 16px 16px 16px 72px !important;
        display: block !important;
        min-height: 60px;
    }

    .profile-avatar {
        position: absolute !important;
        top: 16px !important;
        left: 16px !important;
        width: 48px !important;
        height: 48px !important;
        margin: 0 !important;
        border-width: 2px !important;
    }

    .profile-info {
        display: block !important;
        padding-bottom: 0 !important;
    }

    .profile-info h2 {
        font-size: 16px !important;
        margin-bottom: 0 !important;
        display: block !important;
    }

    .profile-actions {
        display: block !important;
        margin: 4px 0 !important;
        width: auto !important;
    }

    .profile-actions .btn {
        font-size: 12px !important;
        padding: 3px 10px !important;
    }

    .stats {
        display: flex !important;
        gap: 12px !important;
        margin: 4px 0 0 0 !important;
    }

    .stat .number {
        font-size: 14px !important;
    }

    .stat .label {
        font-size: 12px !important;
    }

    .profile-info .bio {
        font-size: 13px !important;
        margin: 6px 0 0 0 !important;
        word-break: break-word !important;
    }

    .stat .number {
        font-size: 13px !important;
    }

    .stat .label {
        font-size: 11px !important;
    }

    .profile-actions {
        order: 2;
        margin: 0 !important;
        width: auto !important;
    }

    .profile-actions .btn {
        font-size: 12px !important;
        padding: 4px 10px !important;
    }

    .edit-profile-btn {
        top: 10px !important;
        right: 10px !important;
        width: 32px !important;
        height: 32px !important;
    }

    .tabs {
        gap: 0 !important;
        overflow-x: visible !important;
    }

    .tab {
        font-size: 14px !important;
        padding: 10px 12px !important;
        flex: 1;
        text-align: center;
    }

    /* ===== 编辑资料弹窗 ===== */
    .modal-content {
        width: 95% !important;
        padding: 20px !important;
    }

    /* ===== 搜索结果用户卡片 ===== */
    div[style*="grid-template-columns: repeat(auto-fill, minmax(200px, 1fr))"] {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    /* ===== 通知页面 ===== */
    .notification-item {
        padding: 12px !important;
        font-size: 14px;
    }

    .notification-item div[style*="flex: 1"] a {
        font-size: 14px;
    }

    /* ===== 创作中心 ===== */
    h2[style*="margin: 30px 0 20px"] {
        margin: 20px 0 16px !important;
        font-size: 20px;
    }

    footer {
        padding: 20px 0;
        margin-top: 30px;
        font-size: 13px;
    }
}

.tag {
    background: #e8f4fd;
    color: var(--primary);
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 12px;
}

.tag:hover {
    background: var(--primary-gradient);
    color: white;
}

.form-container {
    max-width: 550px;
    margin: 40px auto;
    padding: 40px 40px;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.form-container h2 {
    margin-bottom: 30px;
    text-align: center;
    font-size: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 15px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ff6b9d;
    box-shadow: 0 0 0 2px rgba(255, 107, 157, 0.2);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.messages {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1000;
}

.message {
    padding: 15px 25px;
    margin-bottom: 10px;
    border-radius: 8px;
    color: white;
    animation: slideIn 0.3s ease;
}

.message.success {
    background: var(--success);
}

.message.error {
    background: var(--danger);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.detail-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 30px;
    padding: 30px 0;
}

.detail-image {
    width: 100%;
}

.detail-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
}

.detail-sidebar {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    height: fit-content;
}

.detail-info h1 {
    margin-bottom: 15px;
}

.detail-info .author {
    color: var(--text-light);
    margin-bottom: 20px;
}

.detail-actions {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 25px;
    background: white;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:hover {
    border-color: #ff6b9d;
    color: #ff6b9d;
}

.detail-action-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 13px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    transition: color 0.2s;
}

.detail-action-link:hover {
    color: var(--primary);
}

.action-btn.active {
    background: var(--primary-gradient);
    border-color: transparent;
    color: white;
}

.like-btn.active {
    background: #ff4444 !important;
    border-color: #ff4444 !important;
    color: white !important;
}

.comments-section {
    margin-top: 30px;
}

.comment {
    padding: 15px 0;
    border-bottom: 1px solid var(--border);
}

.comment .author {
    font-weight: 600;
    margin-bottom: 5px;
}

.comment .date {
    color: var(--text-light);
    font-size: 12px;
}

.comment-form {
    margin-top: 20px;
}

.comment-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 10px;
    resize: vertical;
}

.reply-btn:hover, .delete-comment-btn:hover {
    text-decoration: underline;
}

.comments-list {
    margin-top: 20px;
}

.profile-header {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 10px;
    margin: 30px 0;
    display: flex;
    gap: 30px;
    align-items: center;
}

.profile-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--border);
}

.profile-info h2 {
    margin-bottom: 10px;
}

.profile-info .bio {
    color: var(--text-light);
    margin-bottom: 15px;
}

.stats {
    display: flex;
    gap: 30px;
}

.stat {
    text-align: center;
}

.stat .number {
    font-size: 24px;
    font-weight: bold;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.stat .label {
    font-size: 12px;
    color: var(--text-light);
}

footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    padding: 30px 0;
    margin-top: 50px;
    text-align: center;
    color: var(--text-light);
}

.tag-dropdown {
    position: absolute;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    z-index: 1000;
    max-height: 200px;
    overflow-y: auto;
    display: none;
}

.tag-item {
    padding: 10px 15px;
    cursor: pointer;
    transition: background 0.2s;
}

.tag-item:hover, .tag-item.active {
    background: var(--primary-gradient);
    color: white;
}

.tag-item.disabled {
    color: var(--text-light);
    cursor: default;
}

.tag-item.disabled:hover {
    background: transparent;
}