/* =========================================================
 * Oiio Pro 主题样式 v3 —— 毛玻璃升级版 + 自定义背景图
 * ========================================================= */

/* ---------- CSS 变量 ---------- */
:root {
    --theme-color: #3b82f6;
    --bg-image: url('/template/oiio-pro/assets/img/background.webp');

    /* 浅色模式（默认亮色 + 背景图） */
    --bg: transparent;                        /* body 透明，让背景图从 body::before 透出来 */
    --surface: rgba(255, 255, 255, 0.62);    /* 半透明白，降低不透明度让背景图更清晰 */
    --surface-2: rgba(241, 245, 249, 0.68);
    --border: rgba(255, 255, 255, 0.55);
    --border-strong: rgba(203, 213, 225, 0.6);
    --text: #1f2937;
    --text-muted: #475569;
    --text-dim: #64748b;

    /* 卡片（毛玻璃）— 降低不透明度让背景图更通透 */
    --card-bg: rgba(255, 255, 255, 0.55);
    --card-hover: rgba(255, 255, 255, 0.72);
    --card-shadow: 0 2px 8px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --card-radius: 14px;
    --card-inner-radius: 10px;

    /* 分类导航 */
    --cat-active-bg: var(--theme-color);
    --cat-active-text: #ffffff;
    --cat-hover-bg: rgba(59, 130, 246, 0.1);

    /* Header / Sidebar（毛玻璃）*/
    --header-bg: rgba(255, 255, 255, 0.58);
    --sidebar-bg: rgba(255, 255, 255, 0.52);
    --sidebar-border: rgba(255, 255, 255, 0.4);

    /* 毛玻璃滤镜参数 */
    --blur-strong: blur(16px) saturate(200%);
    --blur-soft: blur(12px) saturate(180%);

    /* 深色模式覆盖 */
    --dark-bg: transparent;
    --dark-surface: rgba(30, 41, 59, 0.58);
    --dark-surface-2: rgba(51, 65, 85, 0.58);
    --dark-border: rgba(100, 116, 139, 0.4);
    --dark-text: #e2e8f0;
    --dark-text-muted: #94a3b8;
    --dark-card-bg: rgba(30, 41, 59, 0.55);
    --dark-card-hover: rgba(51, 65, 85, 0.72);
    --dark-header-bg: rgba(15, 23, 42, 0.58);
    --dark-sidebar-bg: rgba(15, 23, 42, 0.52);
    --dark-sidebar-border: rgba(100, 116, 139, 0.3);
}

/* ---------- 深色模式 ---------- */
html.dark {
    --bg: var(--dark-bg);
    --surface: var(--dark-surface);
    --surface-2: var(--dark-surface-2);
    --border: var(--dark-border);
    --border-strong: rgba(100, 116, 139, 0.4);
    --text: var(--dark-text);
    --text-muted: var(--dark-text-muted);
    --text-dim: #64748b;
    --card-bg: var(--dark-card-bg);
    --card-hover: var(--dark-card-hover);
    --header-bg: var(--dark-header-bg);
    --sidebar-bg: var(--dark-sidebar-bg);
    --sidebar-border: var(--dark-sidebar-border);
}

/* 深色模式下背景图加深色遮罩 */
html.dark body::before {
    background-color: rgba(15, 23, 42, 0.45);
    background-blend-mode: multiply;
}

/* ---------- 基础重置 ---------- */
* { box-sizing: border-box; }

html { overflow-x: hidden; }

body {
    margin: 0;
    padding: 0;
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: var(--bg-image);
    background-size: cover;
    background-position: center;
    z-index: -1;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }

/* ---------- 容器 ---------- */
.oiio-container {
    width: 100%;
    min-width: 0;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================================
 * 布局一：侧栏模式 (oiio-layout-side)
 * ========================================================= */

body.oiio-layout-side .oiio-body {
    display: flex;
    min-height: calc(100vh - 56px);
    position: relative;
}

/* 侧栏背景填充：让侧栏的背景色延伸到页面最底部
 * 因为侧栏是 position:sticky + 固定高度，内容超过一屏时侧栏底部会露出 body 背景
 * 用伪元素绝对定位到侧栏位置，高度 100%，背景色和侧栏一样 */
body.oiio-layout-side .oiio-body::before {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0;
    width: 240px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    z-index: 0;
    transition: width 0.25s ease;
}
body.oiio-layout-side.sidebar-collapsed .oiio-body::before {
    width: 60px;
}

body.oiio-layout-side .oiio-sidebar {
    width: 240px;
    flex-shrink: 0;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
    transition: width 0.25s ease, transform 0.3s ease;
    z-index: 50;
}

/* 侧栏折叠状态 */
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar {
    width: 60px;
}
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-title,
body.oiio-layout-side.sidebar-collapsed .oiio-cat-label {
    display: none;
}
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-inner {
    padding: 16px 8px;
}
body.oiio-layout-side.sidebar-collapsed .oiio-cat-item {
    justify-content: center;
    padding: 10px;
}
body.oiio-layout-side.sidebar-collapsed .oiio-cat-nav.is-accordion .oiio-cat-item.is-parent::after {
    display: none;
}
body.oiio-layout-side.sidebar-collapsed .oiio-cat-item {
    position: relative;
}
body.oiio-layout-side.sidebar-collapsed .oiio-cat-item:hover::after {
    content: attr(data-cat);
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
    padding: 6px 10px;
    border-radius: 6px;
    background-color: var(--surface);
    border: 1px solid var(--border);
    box-shadow: 0 4px 14px rgba(0,0,0,0.1);
    font-size: 13px;
    color: var(--text);
    z-index: 100;
    pointer-events: none;
}

body.oiio-layout-side .oiio-main {
    flex: 1;
    min-width: 0;
    padding: 24px 0 64px;
}

/* =========================================================
 * 布局二：顶栏模式 (oiio-layout-top)
 * ========================================================= */

body.oiio-layout-top .oiio-sidebar { display: none; }

body.oiio-layout-top .oiio-main {
    padding: 24px 0 64px;
}

/* 顶栏分类导航条 */
.oiio-top-cats {
    display: flex;
    gap: 8px;
    padding: 0 20px;
    max-width: 1280px;
    margin: 0 auto;
    overflow-x: auto;
    padding-bottom: 10px;
    scrollbar-width: thin;
}

.oiio-top-cats::-webkit-scrollbar { height: 4px; }
.oiio-top-cats::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }

/* =========================================================
 * Header
 * ========================================================= */

.oiio-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
}

/* 侧栏也加毛玻璃（Pro 版升级） */
.oiio-sidebar {
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
}

.oiio-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.oiio-header-left {
    display: flex;
    align-items: center;
    gap: 20px;
    min-width: 0;
}

/* 汉堡按钮（移动端 + 侧栏模式） */
.oiio-burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: -8px;
}
.oiio-burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: transform 0.2s;
}

body.oiio-layout-side.is-mobile .oiio-burger { display: flex; }

.oiio-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 17px;
    color: var(--text);
    white-space: nowrap;
}
.oiio-logo img { width: 28px; height: 28px; border-radius: 6px; }

/* 顶部导航菜单 */
.oiio-nav { overflow-x: auto; }
.oiio-nav ul { display: flex; gap: 4px; }
.oiio-nav li a {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--text);
    opacity: 0.7;
    transition: opacity 0.15s, background-color 0.15s;
    white-space: nowrap;
}
.oiio-nav li a:hover { opacity: 1; background-color: var(--cat-hover-bg); }

/* 侧栏头部：标题 + 折叠按钮 */
.oiio-sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--sidebar-border);
}
.oiio-sidebar-head .oiio-sidebar-title {
    margin-bottom: 0;
    font-weight: 600;
}

/* 侧栏折叠按钮（在侧栏内部右上角） */
.oiio-sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: none;
    background-color: transparent;
    color: var(--text-dim);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    flex-shrink: 0;
    padding: 0;
}
.oiio-sidebar-toggle:hover {
    background-color: var(--surface-2);
    color: var(--text);
}
.oiio-sidebar-toggle svg { width: 14px; height: 14px; }
/* 默认显示"折叠态 <<"图标，隐藏"展开态 >>" */
.oiio-sidebar-toggle .oiio-icon-expand { display: none; }
.oiio-sidebar-toggle .oiio-icon-collapse { display: inline-block; }
/* 折叠后：切换图标（显示 >>，隐藏 <<） */
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-toggle .oiio-icon-collapse { display: none; }
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-toggle .oiio-icon-expand { display: inline-block; }

/* 折叠后：侧栏头部也隐藏标题 */
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-head .oiio-sidebar-title { display: none; }
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-head {
    justify-content: center;
    padding: 8px 0;
    margin-bottom: 8px;
}
/* 折叠后：分隔线也隐藏 */
body.oiio-layout-side.sidebar-collapsed .oiio-sidebar-head { border-bottom-color: transparent; }

/* 主题切换按钮 */
.oiio-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    background-color: var(--surface-2);
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    flex-shrink: 0;
}
.oiio-theme-toggle:hover { background-color: var(--card-hover); }
.oiio-theme-toggle svg { width: 18px; height: 18px; }
.oiio-theme-toggle .icon-moon { display: none; }
html.dark .oiio-theme-toggle .icon-sun { display: none; }
html.dark .oiio-theme-toggle .icon-moon { display: block; }

/* =========================================================
 * 侧栏分类导航
 * ========================================================= */

.oiio-sidebar-inner {
    padding: 20px 16px;
}
.oiio-sidebar-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    padding: 0 8px;
}

.oiio-cat-nav { display: flex; flex-direction: column; gap: 2px; }

.oiio-cat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text);
    white-space: nowrap;
    transition: background-color 0.15s, color 0.15s;
    cursor: pointer;
    text-decoration: none;
}

.oiio-cat-icon,
.oiio-cat-item svg,
.oiio-cat-item img {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    max-width: 18px;
    max-height: 18px;
    color: var(--text-muted);
    /* 强制 SVG 用 CSS 尺寸，忽略自带 width/height 属性 */
}
.oiio-cat-item svg {
    aspect-ratio: 1 / 1;
}

.oiio-cat-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.oiio-cat-item:hover { background-color: var(--cat-hover-bg); }

.oiio-cat-item.is-active {
    background-color: var(--cat-active-bg);
    color: var(--cat-active-text);
}

/* 手风琴模式 */
.oiio-cat-nav.is-accordion .oiio-cat-item.is-parent::after {
    content: '';
    border-right: 5px solid currentColor;
    border-bottom: 4px solid transparent;
    border-top: 4px solid transparent;
    margin-left: 4px;
    transition: transform 0.2s;
}
.oiio-cat-nav.is-accordion .oiio-cat-item.is-parent.is-open::after {
    transform: rotate(90deg);
}

/* 子分类折叠容器（手风琴模式）*/
.oiio-cat-children {
    display: none;
    overflow: hidden;
    background-color: rgba(0,0,0,0.02);
    border-left: 1px solid var(--border);
    margin-left: 10px;
    margin-bottom: 4px;
}
.oiio-cat-children.is-open {
    display: block;
}

/* 分类项箭头（JS 生成的 ▾ 字符）*/
.oiio-cat-item .oiio-cat-arrow {
    margin-left: auto;
    font-size: 10px;
    opacity: 0.6;
    transition: transform 0.2s;
}
.oiio-cat-item.is-parent.is-open .oiio-cat-arrow,
.oiio-cat-item.is-open.has-children .oiio-cat-arrow {
    transform: rotate(180deg);
}

/* 顶栏子分类下拉层 */
.oiio-top-subcats {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 90;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    padding: 12px 20px;
    background-color: var(--surface);
    border-top: 1px solid var(--border);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    animation: oiio-subcats-fade 0.18s ease-out;
}
@keyframes oiio-subcats-fade {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}
.oiio-subcat-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 13px;
    white-space: nowrap;
    text-decoration: none;
    transition: color 0.15s, background-color 0.15s;
}
.oiio-subcat-item:hover {
    color: var(--theme-color);
    background-color: var(--cat-hover-bg);
}
.oiio-subcat-item svg {
    width: 16px; height: 16px;
}

/* 顶栏分类条容器（给下拉层定位）*/
.oiio-top-cats {
    position: relative;
}

/* =========================================================
 * 搜索区
 * ========================================================= */

.oiio-search {
    width: 100%;
    min-width: 0;
    margin-bottom: 16px;
}

/* 站内/站外切换 */
.oiio-search-toggle {
    display: inline-flex;
    background-color: var(--surface-2);
    border-radius: 8px;
    padding: 3px;
    margin-bottom: 12px;
    gap: 2px;
}
.oiio-mode-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border: none;
    border-radius: 6px;
    background: none;
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    white-space: nowrap;
}
.oiio-mode-btn:hover { color: var(--text); }
.oiio-mode-btn.is-active {
    background-color: var(--surface);
    color: var(--text);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* 站内搜索结果计数 */
.oiio-site-result {
    font-size: 13px;
    color: var(--text-muted);
    padding: 4px 2px 0;
}
.oiio-site-result.is-empty {
    color: #ef4444;
}

/* 站内搜索：隐藏无匹配的分组 */
body.site-search-active .oiio-group {
    transition: opacity 0.2s;
}
body.site-search-active .oiio-group[data-match="0"] {
    display: none;
}
body.site-search-active .oiio-group[data-match="1"] {
    display: block;
}
/* 高亮匹配的卡片 */
body.site-search-active .oiio-card.is-match {
    border-color: var(--theme-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2), 0 2px 12px rgba(0,0,0,0.08);
}

.oiio-search-form {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.oiio-search-input {
    flex: 1;
    height: 44px;
    padding: 0 16px;
    border: 1px solid var(--border-strong);
    border-radius: 10px;
    background-color: var(--surface);
    color: var(--text);
    font-size: 15px;
    outline: none;
    backdrop-filter: var(--blur-soft);
    -webkit-backdrop-filter: var(--blur-soft);
    transition: border-color 0.15s, box-shadow 0.15s;
}
.oiio-search-input:focus {
    border-color: var(--theme-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.oiio-search-btn {
    height: 44px;
    padding: 0 22px;
    border: none;
    border-radius: 10px;
    background-color: var(--theme-color);
    color: #ffffff;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.15s;
    white-space: nowrap;
}
.oiio-search-btn:hover { opacity: 0.9; }

/* 引擎选择：可横向滑动，隐藏滚动条但不裁内容 */
.oiio-search-engines {
    width: 100%;
    min-width: 0;
    margin: 0;
}
.oiio-engine-track {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 4px 4px 8px 4px;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
    width: 100%;
    min-width: 0;
}
.oiio-engine-track::-webkit-scrollbar { height: 4px; }
.oiio-engine-track::-webkit-scrollbar-track { background: transparent; }
.oiio-engine-track::-webkit-scrollbar-thumb {
    background-color: var(--border-strong);
    border-radius: 2px;
}

.oiio-engine {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 8px;
    background-color: var(--surface-2);
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.15s, color 0.15s;
}
.oiio-engine input[type="radio"] { display: none; }
.oiio-engine:has(input[type="radio"]:checked) {
    background-color: var(--theme-color);
    color: #ffffff;
}
.oiio-engine svg, .oiio-engine img {
    width: 16px; height: 16px;
    color: var(--engine-color, currentColor);
}
.oiio-engine:has(input[type="radio"]:checked) svg { color: inherit; }

/* =========================================================
 * 一言 / 公告
 * ========================================================= */

.oiio-yan {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 16px;
}

.oiio-notice {
    margin-bottom: 16px;
    padding: 12px 16px;
    border-radius: 10px;
    background-color: var(--surface);
    border: 1px dashed var(--border-strong);
    font-size: 14px;
}

/* 今日热榜模块容器（搜索栏下方 & 底部 样式一致） */
.oiio-lytoday {
    display: block;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    margin: 0 0 16px 0;
    border-radius: 10px;
    overflow: hidden;
    clear: both;
}
/* LyToday-JS 内部 iframe/卡片宽度强制 100%，避免底部被压缩 */
.oiio-lytoday iframe,
.oiio-lytoday #lytoday,
.oiio-lytoday [id*="lytoday"] {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
}

/* =========================================================
 * 分组与卡片
 * ========================================================= */

.oiio-group {
    margin-bottom: 28px;
}

.oiio-group-header {
    margin-bottom: 14px;
}

.oiio-group-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin: 0;
    padding: 0;
}
.oiio-group-title svg,
.oiio-group-title img {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: var(--theme-color);
}

/* 卡片网格 */
.oiio-grid {
    display: grid;
    width: 100%;
    min-width: 0;
    gap: 14px 18px;
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 640px) {
    .oiio-grid { grid-template-columns: repeat(3, 1fr); gap: 16px 20px; }
}

@media (min-width: 1024px) {
    .oiio-grid {
        grid-template-columns: repeat(var(--grid-cols, 5), 1fr);
        gap: 16px 22px;
    }
}

/* 卡片本体 */
.oiio-card {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-width: 0;
    padding: 14px 16px;
    border-radius: var(--card-radius);
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    box-shadow: var(--card-shadow);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
    backdrop-filter: var(--blur-soft);
    -webkit-backdrop-filter: var(--blur-soft);
}

.oiio-card:hover {
    transform: translateY(-2px);
    border-color: var(--theme-color);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    background-color: var(--card-hover);
}

html.dark .oiio-card:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

.oiio-card-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--card-inner-radius);
    background-color: var(--surface-2);
    transition: background-color 0.2s;
}
.oiio-card:hover .oiio-card-icon { background-color: var(--surface-2); }
.oiio-card-icon svg,
.oiio-card-icon img {
    width: 22px;
    height: 22px;
    color: var(--theme-color);
}

.oiio-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.oiio-card-name {
    display: block;
    min-width: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

/* 卡片底部分类标签（Pro 版升级，参考 oiio-nav.pages.dev） */
.oiio-card-cat {
    display: block;
    font-size: 11px;
    color: var(--text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
}

/* =========================================================
 * Footer
 * ========================================================= */

.oiio-footer {
    padding: 32px 20px;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}
.oiio-footer .icp,
.oiio-footer .gonganbei {
    margin-left: 8px;
    color: var(--text-muted);
    opacity: 0.8;
}

/* ---------- 一键置顶 ---------- */
.oiio-backtop {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border-strong);
    background-color: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, background-color 0.15s, color 0.15s;
    z-index: 200;
}
.oiio-backtop.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.oiio-backtop:hover {
    background-color: var(--theme-color);
    color: #ffffff;
    border-color: var(--theme-color);
}
.oiio-backtop svg {
    width: 20px;
    height: 20px;
}
html.dark .oiio-backtop {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

/* =========================================================
 * 移动端适配
 * ========================================================= */

@media (max-width: 768px) {
    /* 侧栏模式：汉堡打开时侧栏滑出 */
    body.oiio-layout-side .oiio-sidebar {
        position: fixed;
        top: 56px;
        left: 0;
        transform: translateX(-100%);
        box-shadow: 4px 0 16px rgba(0,0,0,0.1);
    }
    body.oiio-layout-side.sidebar-open .oiio-sidebar {
        transform: translateX(0);
    }
    body.oiio-layout-side .oiio-main {
        padding: 16px 0 48px;
    }

    .oiio-header-inner { height: 50px; }
    .oiio-logo span { font-size: 15px; }

    .oiio-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }

    .oiio-card { padding: 10px 12px; gap: 10px; }
    .oiio-card-icon { width: 36px; height: 36px; }
    .oiio-card-icon svg, .oiio-card-icon img { width: 20px; height: 20px; }
    .oiio-card-name { font-size: 13px; }

    .oiio-group { margin-bottom: 24px; }
    .oiio-group-title { font-size: 15px; }
    .oiio-group-title svg, .oiio-group-title img { width: 18px; height: 18px; }

    .oiio-search { margin-bottom: 16px; }
    .oiio-search-input, .oiio-search-btn { height: 42px; font-size: 14px; }
}

/* 引擎滚动渐变提示（宽屏时） */