/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #4A90D9;
    --primary-dark: #357ABD;
    --text: #333;
    --text-light: #666;
    --text-muted: #999;
    --bg: #f5f6fa;
    --white: #fff;
    --border: #e8e8e8;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ========== 顶部导航栏 ========== */
.site-header {
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top { padding: 10px 0; }

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

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
}

.main-nav ul { display: flex; gap: 20px; }

.main-nav a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-light);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: rgba(74,144,217,0.08);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border-radius: 20px;
    padding: 6px 12px;
}

.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    width: 140px;
    color: var(--text);
}

.search-box button {
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-light);
    font-size: 16px;
}

.btn {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

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

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

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

.btn-danger {
    background: #e74c3c;
    color: var(--white);
}

.btn-danger:hover { background: #c0392b; }

.btn-small {
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 16px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
}

/* ========== 移动端菜单 ========== */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

.mobile-menu-overlay.active { display: block; }

.mobile-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: var(--white);
    z-index: 999;
    transition: left 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active { left: 0; }

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.close-menu {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-light);
}

.mobile-nav ul { padding: 8px 0; }

.mobile-nav li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    font-size: 15px;
    color: var(--text);
    transition: var(--transition);
}

.mobile-nav li a:hover {
    background: var(--bg);
    color: var(--primary);
}

.mobile-nav .has-submenu > a::after { content: ''; margin-left: auto; margin-right: 16px; }

.mobile-nav .submenu {
    display: none;
    background: var(--bg);
}

.mobile-nav .has-submenu.open .submenu { display: block; }

.mobile-nav .submenu a { padding-left: 48px; font-size: 14px; }

/* ========== 主内容区 ========== */
.site-content { padding: 20px 0 80px; }

/* ========== 轮播Banner ========== */
.banner-slider { position: relative; margin-bottom: 20px; }

.slider-main {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 2 / 1;
}

.slide {
    display: none;
    position: absolute;
    inset: 0;
}

.slide.active { display: block; }

.slide-link {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
}

.slide-link img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--white);
}

.slide-info h2 { font-size: 18px; margin-bottom: 8px; }

.slide-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    opacity: 0.9;
}

.slide-meta .avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
    pointer-events: none;
}

.slider-nav button {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.8);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text);
    pointer-events: all;
    transition: var(--transition);
}

.slider-nav button:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary);
    width: 24px;
    border-radius: 4px;
}

/* ========== 广告位 ========== */
.ad-banner { margin-bottom: 20px; border-radius: var(--radius); overflow: hidden; }
.ad-banner img { width: 100%; border-radius: var(--radius); }

/* ========== 文章列表 ========== */
.posts-section { margin-bottom: 20px; }

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-title { font-size: 20px; font-weight: 600; }

.more-link {
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.posts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.post-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.post-thumb { aspect-ratio: 10/11; overflow: hidden; }

.post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.post-card:hover .post-thumb img { transform: scale(1.05); }

.post-info { padding: 12px; }

.post-info h3 {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
}

.post-info h3 a:hover { color: var(--primary); }

.post-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.tag {
    font-size: 11px;
    padding: 1px 6px;
    border-radius: 3px;
    font-weight: 500;
}

.tag-looks {
    background: #fff3e0;
    color: #e65100;
}

.tag-figure {
    background: #fce4ec;
    color: #c62828;
}

.tag-rarity {
    background: #e8f5e9;
    color: #2e7d32;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.post-meta .author {
    display: flex;
    align-items: center;
    gap: 4px;
}

.post-meta .avatar {
    width: 20px;
    height: 20px;
    border-radius: 50%;
}

.post-size i {
    margin-right: 2px;
}

/* ========== 底部 ========== */
.site-footer {
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 20px 0;
    margin-bottom: 60px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
}

.footer-left a { color: var(--text-light); }
.footer-left a:hover { color: var(--primary); }

/* ========== 移动端底部导航 ========== */
.mobile-footer {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid var(--border);
    z-index: 1000;
    padding: 6px 0;
    padding-bottom: env(safe-area-inset-bottom, 6px);
}

.mobile-footer .mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-size: 10px;
    color: var(--text-muted);
    padding: 4px 0;
}

.mobile-footer .mobile-nav-item i { font-size: 20px; }

.mobile-footer .mobile-nav-item.active,
.mobile-footer .mobile-nav-item:hover { color: var(--primary); }

.mobile-footer .publish-btn {
    background: var(--primary);
    color: var(--white) !important;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    margin: -20px auto 0;
    padding: 0;
    justify-content: center;
    align-items: center;
    box-shadow: 0 2px 8px rgba(74,144,217,0.4);
}

/* ========== 编辑面板 ========== */
.edit-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 3000;
    justify-content: flex-end;
}

.edit-overlay.active { display: flex; }

.edit-panel {
    width: 420px;
    max-width: 100%;
    height: 100vh;
    background: var(--white);
    overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
}

.edit-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--white);
    z-index: 10;
}

.edit-header h3 {
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.edit-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
}

.edit-body { padding: 16px 20px; }

.edit-group {
    margin-bottom: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.edit-group summary {
    padding: 12px 16px;
    background: var(--bg);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
}

.edit-group summary i { color: var(--primary); }

.edit-group-content { padding: 16px; }

.edit-field {
    margin-bottom: 12px;
}

.edit-field:last-child { margin-bottom: 0; }

.edit-field label {
    display: block;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.edit-field input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.edit-field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74,144,217,0.1);
}

.edit-divider {
    border: none;
    border-top: 1px dashed var(--border);
    margin: 16px 0;
}

.add-post-btn {
    margin-left: auto;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.add-post-btn:hover { background: var(--primary-dark); }

/* 文章编辑项 */
.post-edit-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    margin-bottom: 12px;
    background: var(--bg);
}

.post-edit-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.post-edit-item-header span {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
}

.post-edit-item-header button {
    background: #e74c3c;
    color: var(--white);
    border: none;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 12px;
    cursor: pointer;
}

.post-edit-item .edit-field { margin-bottom: 8px; }
.post-edit-item .edit-field input,
.post-edit-item .edit-field textarea {
    font-size: 13px;
    padding: 6px 10px;
}

.post-edit-item .edit-field textarea {
    resize: vertical;
    min-height: 40px;
}

.edit-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    position: sticky;
    bottom: 0;
    background: var(--white);
}

.edit-footer .btn { flex: 1; min-width: 100px; text-align: center; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .posts-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .main-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .search-box { display: none; }
    .auth-buttons .btn-outline { display: none; }
    .posts-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .mobile-footer { display: flex; }
    .site-footer { margin-bottom: 60px; }
    .slider-main { aspect-ratio: 16/9; }
    .edit-panel { width: 100%; }
}

@media (max-width: 480px) {
    .posts-grid { gap: 8px; }
    .post-info { padding: 8px; }
    .post-info h3 { font-size: 12px; }
    .section-title { font-size: 17px; }
}