/* ==================== 孟菲斯风格主题 (Memphis Theme) ==================== */
/* 覆盖默认主题的 CSS 变量，实现孟菲斯风格 */

:root {
    /* 背景色 - 亮黄色 */
    --bg-body: #ffe14d;
    --bg-card: #ffffff;
    --bg-section: #ffffff;
    --bg-hover: #fff8e1;
    --bg-input: #ffffff;
    --bg-placeholder: linear-gradient(135deg, #ff3d6f, #ff6b9d);

    /* 主色调 - 更鲜艳的粉色 */
    --color-primary: #ff3d6f;
    --color-primary-light: #ff6b9d;
    --color-primary-rgb: 255, 61, 111;

    /* 文字色 */
    --color-text: #2b2b2b;
    --color-text-secondary: #7a1f00;
    --color-text-muted: #8b5a2b;
    --color-text-light: #333333;

    /* 边框 - 粗黑边框 */
    --border-color: #000000;
    --border-color-light: #000000;
    --border-color-hover: #000000;

    /* 阴影 - 硬阴影 */
    --shadow-card: 4px 4px 0 #000;
    --shadow-card-hover: 6px 6px 0 #000;
    --shadow-btn: 5px 5px 0 #000;
    --shadow-btn-hover: 3px 3px 0 #000;
    --shadow-menu: 6px 6px 0 #000;
    --shadow-float: 4px 4px 0 #000;
    --shadow-float-hover: 6px 6px 0 #000;
    --shadow-back-to-top: 4px 4px 0 #000;
    --shadow-back-to-top-hover: 6px 6px 0 #000;

    /* 圆角 - 更大更活泼 */
    --radius-card: 18px;
    --radius-btn: 18px;
    --radius-avatar: 50%;
    --radius-tab: 18px;
    --radius-input: 14px;
    --radius-badge: 10px;

    /* 间距 */
    --section-gap: 14px;
    --card-gap: 16px;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #ff3d6f, #ff6b9d);
    --gradient-visitor: linear-gradient(135deg, #ff3d6f, #ff6b9d, #ffd60a, #22d3a0, #8b5cf6);
    --gradient-showcase: linear-gradient(135deg, #8b5cf6, #c4b5fd);
    --gradient-guestbook: linear-gradient(135deg, #ff3d6f, #ff6b9d);
}

/* ==================== 孟菲斯特有样式 ==================== */

/* 几何图形背景层 */
body::after {
    content: "";
    position: fixed;
    inset: -20% -20% -20% -20%;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 15% 20%, #ff5e8a 0 14px, transparent 15px),
        radial-gradient(circle at 80% 30%, transparent 0 10px, #22c1a6 10px 15px, transparent 16px),
        radial-gradient(circle at 70% 75%, #5b9bff 0 12px, transparent 13px),
        radial-gradient(circle at 30% 85%, transparent 0 9px, #ff5e8a 9px 14px, transparent 15px),
        radial-gradient(circle at 90% 60%, #8b5cf6 0 8px, transparent 9px),
        radial-gradient(circle at 45% 50%, #22c1a6 0 6px, transparent 7px);
    background-size: 420px 420px;
    opacity: 0.9;
    animation: geo-drift 24s linear infinite;
}

@keyframes geo-drift {
    to { background-position: 420px 420px; }
}

/* emoji 漂浮层 */
body::before {
    content: "🤣😂👊💩🐔🍜🤡👀🔥😎";
    position: fixed;
    inset: 0;
    font-size: 26px;
    opacity: 0.08;
    white-space: nowrap;
    letter-spacing: 70px;
    line-height: 90px;
    pointer-events: none;
    word-wrap: break-word;
    width: 200%;
    z-index: 0;
    animation: float-bg 40s linear infinite;
}

@keyframes float-bg {
    to { transform: translate(-50%, -12%); }
}

/* 页面内容层 */
.page-wrapper,
.site-footer {
    position: relative;
    z-index: 1;
}

.top-bar {
    position: relative;
    z-index: 2;
}

/* ==================== 顶部栏孟菲斯化 ==================== */
.top-bar {
    background: #ffffff;
    border-bottom: 3px solid #000;
    box-shadow: 4px 4px 0 #000;
    margin: 0 16px;
    border-radius: 0 0 18px 18px;
    top: 0;
}

.avatar-section:hover {
    background: #fff8e1;
}

.avatar-section:hover .avatar-img,
.avatar-section:hover .avatar-placeholder {
    box-shadow: 0 0 0 3px rgba(255, 61, 111, 0.3);
}

.avatar-placeholder {
    background: var(--gradient-primary);
    border: 3px solid #000;
}

.func-btn {
    background: var(--gradient-primary);
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    transition: all 0.15s;
}

.func-btn:hover {
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 #000;
}

.func-btn:active {
    transform: translate(3px, 3px);
    box-shadow: 0 0 0 #000;
}

/* 功能菜单 */
.func-menu {
    background: #ffffff;
    border: 3px solid #000;
    box-shadow: 5px 5px 0 #000;
    border-radius: 14px;
}

.func-menu a:hover {
    background: #fff5f5;
    color: var(--color-primary);
}

/* ==================== 区块卡片孟菲斯化 ==================== */
.section-card {
    background: #ffffff;
    border: 3px solid #000;
    box-shadow: 5px 5px 0 #000;
    border-radius: 18px;
    margin-bottom: 14px;
}

.section-card:hover {
    box-shadow: 7px 7px 0 #000;
    transform: translateY(-2px);
}

/* ==================== 轮播图区 ==================== */
.slide-carousel {
    background: #ffffff;
    border: 3px solid #000;
    border-radius: 18px;
    overflow: hidden;
}

.slide-item img {
    border-radius: 0;
}

.slide-placeholder {
    background: var(--gradient-primary);
    border: 3px solid #000;
}

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

/* ==================== 公告区 ==================== */
.notice-item {
    border-bottom: 2px dashed #000;
    font-weight: 600;
}

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

.notice-item:hover {
    background: #fff8e1;
    color: var(--color-primary);
}

/* ==================== 热门推荐 ==================== */
.hot-label {
    font-size: 16px;
    font-weight: 900;
    color: var(--color-primary);
    text-shadow: 2px 2px 0 #000;
}

.hot-image {
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    border-radius: 14px;
}

.hot-name {
    font-weight: 700;
    font-size: 12px;
}

/* ==================== 分类导航孟菲斯化 ==================== */
.category-tabs {
    gap: 12px;
}

.category-tab {
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    background: #ffffff;
    color: #000;
    font-weight: 800;
    font-size: 14px;
    border-radius: 18px;
    transition: all 0.15s;
}

.category-tab:hover {
    background: #fff8e1;
    border-color: #000;
    color: #000;
    box-shadow: 2px 2px 0 #000;
    transform: translate(1px, 1px);
}

.category-tab.active {
    background: var(--gradient-primary);
    border-color: #000;
    color: #fff;
    box-shadow: 3px 3px 0 #000;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
}

/* ==================== 卡片网格孟菲斯化 ==================== */
.card-item {
    background: #ffffff;
    border: 3px solid #000;
    box-shadow: 4px 4px 0 #000;
    border-radius: 18px;
    transition: all 0.15s;
}

.card-item:hover {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 #000;
}

.card-item:active {
    transform: translate(4px, 4px);
    box-shadow: 0 0 0 #000;
}

.card-placeholder {
    background: var(--gradient-primary);
    border: 3px solid #000;
}

.card-title {
    background: #ffffff;
    border-top: 3px solid #000;
    font-weight: 700;
    font-size: 13px;
}

.card-item:hover .card-title {
    background: #fff5f5;
    color: var(--color-primary);
}

/* 卡片类型标签 */
.card-type-badge {
    border: 2px solid #000;
    box-shadow: 2px 2px 0 #000;
    font-weight: 800;
}

.card-type-badge.link {
    background: #22d3a0;
    color: #000;
}

.card-type-badge.detail {
    background: var(--color-primary);
    color: #fff;
}

.card-type-badge.custom {
    background: #ffd60a;
    color: #000;
}

/* ==================== 加载动画 ==================== */
.spinner {
    border: 4px solid #000;
    border-top-color: var(--color-primary);
}

/* ==================== 页脚孟菲斯化 ==================== */
.site-footer {
    background: #ffffff;
    border-top: 3px solid #000;
    box-shadow: 0 -4px 0 #000;
    margin: 14px 16px 0;
    border-radius: 18px 18px 0 0;
    font-weight: 700;
}

.site-footer .visitor-count {
    background: var(--gradient-visitor);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
    font-weight: 900;
    text-shadow: none;
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    background: var(--gradient-primary);
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
}

.back-to-top:hover {
    transform: translate(2px, 2px) scale(1.05);
    box-shadow: 1px 1px 0 #000;
}

/* ==================== 悬浮按钮组 ==================== */
.float-btn {
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    transition: all 0.15s;
}

.float-btn:hover {
    transform: translate(2px, 2px) scale(1.05);
    box-shadow: 1px 1px 0 #000;
}

.float-btn#backToTop {
    background: linear-gradient(135deg, #666666, #999999);
    border: 3px solid #000;
}

.float-btn#backToTop:hover {
    transform: translate(2px, 2px) scale(1.08);
    box-shadow: 1px 1px 0 #000;
}

/* ==================== 留言板页面 ==================== */
.guestbook-item {
    border-bottom: 2px dashed #000;
}

.guestbook-item:hover {
    background: #fff8e1;
}

.guestbook-item-nickname {
    color: var(--color-primary);
    font-weight: 800;
}

.guestbook-form input,
.guestbook-form textarea {
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    background: #ffffff;
    border-radius: 14px;
    font-weight: 600;
}

.guestbook-form input:focus,
.guestbook-form textarea:focus {
    border-color: #000;
    box-shadow: 2px 2px 0 #000;
    outline: none;
    transform: translate(1px, 1px);
}

.guestbook-form button {
    background: var(--gradient-primary);
    border: 3px solid #000;
    box-shadow: 4px 4px 0 #000;
    border-radius: 18px;
    font-weight: 800;
    transition: all 0.15s;
}

.guestbook-form button:hover:not(:disabled) {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 #000;
}

.pagination-btn {
    background: #ffffff;
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    color: #000;
    border-radius: 18px;
    font-weight: 700;
    transition: all 0.15s;
}

.pagination-btn:hover {
    background: #fff8e1;
    border-color: #000;
    color: #000;
    transform: translate(2px, 2px);
    box-shadow: 1px 1px 0 #000;
}

.guestbook-reply {
    background: #fff8e1;
    border: 3px solid #000;
    box-shadow: 3px 3px 0 #000;
    border-radius: 14px;
    border-left: 3px solid var(--color-primary);
}

.guestbook-reply-label {
    color: var(--color-primary);
    font-weight: 800;
}

/* ==================== 空状态 ==================== */
.empty-state {
    color: var(--color-text-muted);
    font-weight: 700;
}

/* ==================== Toast 提示 ==================== */
#toast {
    background: #000;
    color: #fff;
    border: 3px solid #000;
    box-shadow: 5px 5px 0 rgba(0,0,0,0.3);
    border-radius: 14px;
    font-weight: 700;
}

/* ==================== 响应式调整 ==================== */
@media (max-width: 480px) {
    .top-bar {
        margin: 0 8px;
        border-radius: 0 0 14px 14px;
    }

    .site-footer {
        margin: 10px 8px 0;
        border-radius: 14px 14px 0 0;
    }

    .section-card {
        border: 3px solid #000;
        box-shadow: 3px 3px 0 #000;
    }

    .category-tab {
        font-size: 12px;
        border: 2px solid #000;
        box-shadow: 2px 2px 0 #000;
    }

    .card-item {
        border: 2px solid #000;
        box-shadow: 2px 2px 0 #000;
    }
}