/**
 * RiPro 文章内搜索 - 前端样式（增强版）
 *
 * 风格贴近 RiPro 主题：圆角 + 白底（或主题暗色背景）+ 珊瑚红强调色 + FA5 图标 + 细腻过渡动效
 * 支持：
 *  - 结果预览面板 .ripro-ips__preview
 *  - 当前高亮脉冲动画 .ripro-ips__mark--pulse
 *  - 空结果 .ripro-ips--no-result 空状态
 *  - 区分大小写按钮开关样式 .ripro-ips__case
 *  - 响应式 移动端 / 暗黑模式
 */

/* 颜色变量兜底（PHP 会通过 style.setProperty 注入 --ripro-ips-accent */
.ripro-ips {
    --ripro-ips-accent: #ff6651;
    --ripro-ips-accent-rgb: 255, 102, 81;
    --ripro-ips-bg: #ffffff;
    --ripro-ips-border: rgba(0, 0, 0, 0.06);
    --ripro-ips-text: #242a37;
    --ripro-ips-muted: #8a8f99;
    --ripro-ips-highlight: rgba(255, 102, 81, 0.18);
    --ripro-ips-active: rgba(255, 102, 81, 0.85);
    --ripro-ips-radius: 14px;
    --ripro-ips-shadow: 0 12px 32px -18px rgba(0, 0, 0, 0.12), 0 4px 14px -8px rgba(0, 0, 0, 0.08);
    margin: 12px 0 20px;
    position: relative;
    z-index: 10;
    box-sizing: border-box;
}

.ripro-ips *,
.ripro-ips *::before,
.ripro-ips *::after {
    box-sizing: inherit;
}

/* ---- 主容器 ---- */
.ripro-ips__inner {
    background: var(--ripro-ips-bg);
    border: 1px solid var(--ripro-ips-border);
    border-radius: var(--ripro-ips-radius);
    padding: 10px 10px 10px 14px;
    box-shadow: var(--ripro-ips-shadow);
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    transition: box-shadow .25s ease, border-color .25s ease, transform .25s ease;
}

.ripro-ips:hover .ripro-ips__inner {
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.35);
    box-shadow: 0 20px 40px -20px rgba(var(--ripro-ips-accent-rgb), 0.18), 0 6px 16px -10px rgba(0, 0, 0, 0.08);
}

/* ---- 输入行 ---- */
.ripro-ips__field {
    position: relative;
    display: flex;
    align-items: center;
    background: #f7f8fa;
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 0 44px 0 42px;
    transition: background .2s ease, border-color .2s ease;
}

.ripro-ips__field:focus-within {
    background: #ffffff;
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.45);
    box-shadow: 0 0 0 4px rgba(var(--ripro-ips-accent-rgb), 0.1);
}

.ripro-ips__icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ripro-ips-muted);
    font-size: 15px;
    pointer-events: none;
    transition: color .2s ease;
}

.ripro-ips__field:focus-within .ripro-ips__icon {
    color: var(--ripro-ips-accent);
}

.ripro-ips__input {
    flex: 1;
    min-width: 0;
    height: 44px;
    line-height: 44px;
    border: 0 !important;
    outline: none !important;
    padding: 0 6px !important;
    background: transparent !important;
    box-shadow: none !important;
    font-size: 15px !important;
    color: var(--ripro-ips-text);
    width: 100% !important;
}

.ripro-ips__input::placeholder {
    color: #adb2bd;
    opacity: 1;
}

.ripro-ips__clear {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    padding: 0 !important;
    border: 0 !important;
    border-radius: 50%;
    background: transparent;
    color: var(--ripro-ips-muted);
    cursor: pointer;
    transition: background .2s ease, color .2s ease, transform .2s ease;
}
.ripro-ips__clear:hover {
    background: rgba(0,0,0,0.06);
    color: var(--ripro-ips-text);
    transform: translateY(-50%) rotate(90deg);
}

/* ---- 工具行（计数、上下、区分大小写）---- */
.ripro-ips__tools {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
    padding: 2px 4px 6px 2px;
}

.ripro-ips__count {
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    padding: 4px 10px;
    background: rgba(var(--ripro-ips-accent-rgb), 0.08);
    color: var(--ripro-ips-accent);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    animation: ipsFade .25s ease both;
}
.ripro-ips__cur { color: var(--ripro-ips-text); }
.ripro-ips__sep { color: var(--ripro-ips-muted); margin: 0 1px; font-weight: 400; }
.ripro-ips__total { color: var(--ripro-ips-accent); }

.ripro-ips__btn {
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--ripro-ips-border) !important;
    background: #fff;
    color: var(--ripro-ips-muted);
    border-radius: 10px !important;
    font-size: 13px !important;
    transition: all .2s ease;
    padding: 0 !important;
}
.ripro-ips__btn:not(:disabled):hover {
    color: var(--ripro-ips-accent);
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.35) !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px -10px rgba(var(--ripro-ips-accent-rgb), 0.4);
}
.ripro-ips__btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}

.ripro-ips__case {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border: 1px solid var(--ripro-ips-border);
    border-radius: 999px;
    color: var(--ripro-ips-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all .2s ease;
    background: #fff;
    user-select: none;
}
.ripro-ips__case:hover {
    color: var(--ripro-ips-text);
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.35);
}
.ripro-ips__case.is-on,
.ripro-ips.ripro-ips--case-on .ripro-ips__case {
    background: var(--ripro-ips-accent);
    color: #fff !important;
    border-color: var(--ripro-ips-accent);
    box-shadow: 0 6px 16px -8px rgba(var(--ripro-ips-accent-rgb), 0.45);
}
.ripro-ips__case-input { display: none; }
.ripro-ips__case-text {
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    letter-spacing: .5px;
}
.ripro-ips__case-label {
    white-space: nowrap;
}
.ripro-ips__case.is-on .ripro-ips__case-label,
.ripro-ips.ripro-ips--case-on .ripro-ips__case-label {
    color: #fff;
}

/* ---- 提示（hint） ---- */
.ripro-ips__hint {
    margin-top: 10px;
    font-size: 13px;
    padding: 8px 12px;
    border-radius: 10px;
    background: rgba(var(--ripro-ips-accent-rgb), 0.08);
    color: #6b3b32;
    animation: ipsFade .25s ease both;
}
.ripro-ips__hint.is-noresult {
    background: #fdf0ef;
    color: #9f3b2e;
    border-left: 3px solid var(--ripro-ips-accent);
}

/* ---- 结果预览面板（分组卡片式 v2） ---- */
.ripro-ips__preview {
    margin-top: 10px;
    display: block;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    animation: ipsFade .3s ease both;
}

.ripro-ips__preview:empty,
.ripro-ips__preview.has-nothing {
    display: none;
}

/* 顶部摘要条 */
.ripro-ips__results-summary {
    padding: 10px 14px;
    background: linear-gradient(135deg, rgba(var(--ripro-ips-accent-rgb), 0.08), rgba(var(--ripro-ips-accent-rgb), 0.02));
    border: 1px solid rgba(var(--ripro-ips-accent-rgb), 0.22);
    border-radius: 12px 12px 0 0;
    color: var(--ripro-ips-text);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: none;
}
.ripro-ips__results-summary i {
    color: var(--ripro-ips-accent);
    font-size: 13.5px;
}
.ripro-ips__results-summary b {
    color: var(--ripro-ips-accent);
    font-weight: 700;
    margin: 0 2px;
}

/* 章节分组 */
.ripro-ips__group {
    background: #fff;
    border: 1px solid var(--ripro-ips-border);
    border-top: none;
    padding: 12px 14px 10px;
    animation: ipsFade .25s ease both;
}
.ripro-ips__group:last-of-type {
    border-radius: 0;
}
.ripro-ips__group + .ripro-ips__results-more {
    border-top: none;
    border-radius: 0 0 12px 12px;
}
/* 如果最后不是 more 按钮，最后一个 group 圆角 */
.ripro-ips__group:last-child {
    border-radius: 0 0 12px 12px;
}

/* 分组头部 */
.ripro-ips__group-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--ripro-ips-border);
}
.ripro-ips__group-name {
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    color: #353a4a;
    display: flex;
    align-items: center;
    gap: 6px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.ripro-ips__group-name i {
    color: var(--ripro-ips-accent);
    font-size: 12px;
    flex-shrink: 0;
}
.ripro-ips__group-count {
    padding: 2px 8px;
    background: rgba(var(--ripro-ips-accent-rgb), 0.1);
    color: var(--ripro-ips-accent);
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    flex-shrink: 0;
}
.ripro-ips__group-expandbtn {
    border: 1px solid rgba(var(--ripro-ips-accent-rgb), 0.3);
    background: #fff;
    color: var(--ripro-ips-accent);
    font-size: 11.5px;
    padding: 3px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all .2s ease;
    flex-shrink: 0;
    font-weight: 500;
    line-height: 1.6;
}
.ripro-ips__group-expandbtn:hover {
    background: var(--ripro-ips-accent);
    color: #fff;
    border-color: var(--ripro-ips-accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px -6px rgba(var(--ripro-ips-accent-rgb), 0.45);
}

/* 条目列表 */
.ripro-ips__items {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

/* 单条结果 */
.ripro-ips__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 10px;
    border: 1px solid transparent;
    border-radius: 10px;
    background: #fafbfc;
    cursor: pointer;
    transition: all .18s ease;
    user-select: none;
}
.ripro-ips__item:hover {
    background: #fff;
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.3);
    transform: translateX(2px);
    box-shadow: 0 6px 14px -10px rgba(var(--ripro-ips-accent-rgb), 0.35);
}
.ripro-ips__item.is-active {
    background: linear-gradient(90deg, rgba(var(--ripro-ips-accent-rgb), 0.12), rgba(var(--ripro-ips-accent-rgb), 0.04));
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.55);
    box-shadow: 0 6px 14px -10px rgba(var(--ripro-ips-accent-rgb), 0.45);
}

/* 序号 */
.ripro-ips__item-no {
    min-width: 30px;
    height: 22px;
    line-height: 22px;
    text-align: center;
    border-radius: 6px;
    background: #fff;
    border: 1px solid var(--ripro-ips-border);
    color: var(--ripro-ips-muted);
    font-size: 11.5px;
    font-weight: 700;
    flex-shrink: 0;
    transition: all .2s ease;
    font-variant-numeric: tabular-nums;
}
.ripro-ips__item:hover .ripro-ips__item-no {
    color: #fff;
    background: var(--ripro-ips-accent);
    border-color: var(--ripro-ips-accent);
}
.ripro-ips__item.is-active .ripro-ips__item-no {
    color: #fff;
    background: var(--ripro-ips-accent);
    border-color: var(--ripro-ips-accent);
}

/* 上下文文本 */
.ripro-ips__item-ctx {
    flex: 1;
    font-size: 12.5px;
    color: #5a606f;
    line-height: 1.55;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-word;
}

/* 展开本章节条目 & 展开剩余章节按钮 */
.ripro-ips__items-more,
.ripro-ips__results-more {
    width: 100%;
    margin-top: 6px;
    padding: 8px 10px;
    text-align: center;
    font-size: 12px;
    color: var(--ripro-ips-muted);
    background: #f6f7f9;
    border: 1px dashed var(--ripro-ips-border);
    border-radius: 10px;
    cursor: pointer;
    transition: all .2s ease;
    line-height: 1.6;
}
.ripro-ips__items-more i,
.ripro-ips__results-more i {
    margin-right: 4px;
    font-size: 11px;
    color: var(--ripro-ips-accent);
}
.ripro-ips__items-more:hover,
.ripro-ips__results-more:hover {
    color: var(--ripro-ips-accent);
    background: #fff;
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.4);
    border-style: solid;
    transform: translateY(-1px);
    box-shadow: 0 6px 14px -10px rgba(var(--ripro-ips-accent-rgb), 0.35);
}
.ripro-ips__results-more {
    background: #f4f5f8;
    border-radius: 0 0 12px 12px;
    border-top: 1px solid var(--ripro-ips-border);
    font-size: 12.5px;
    padding: 10px 12px;
}
.ripro-ips__results-more i {
    transition: transform .2s ease;
    margin-right: 6px;
}

/* 条目跳转箭头 */
.ripro-ips__item-go {
    color: var(--ripro-ips-muted);
    font-size: 11px;
    opacity: .4;
    transition: all .2s ease;
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    line-height: 22px;
    text-align: center;
    border-radius: 6px;
}
.ripro-ips__item:hover .ripro-ips__item-go {
    opacity: 1;
    color: #fff;
    background: var(--ripro-ips-accent);
    transform: translateX(2px);
}

/* 预览中关键词高亮 b 标签 */
.ripro-ips__preview-hl {
    display: inline;
    background: rgba(var(--ripro-ips-accent-rgb), 0.14);
    color: var(--ripro-ips-accent);
    padding: 0 3px;
    border-radius: 3px;
    font-weight: 700;
}
.ripro-ips__item.is-active .ripro-ips__preview-hl {
    background: rgba(255, 102, 81, 0.35);
    color: var(--ripro-ips-accent);
}

/* 预览-空态 */
.ripro-ips__preview.is-empty {
    border-style: solid;
    background: #fff7f6;
    color: #9f3b2e;
    padding: 14px 16px;
    display: flex !important;
    justify-content: center;
    align-items: center;
    gap: 8px;
    border-radius: 12px;
    border: 1px solid rgba(var(--ripro-ips-accent-rgb), 0.22);
}
.ripro-ips__preview.is-empty i {
    color: var(--ripro-ips-accent);
    font-size: 15px;
}
.ripro-ips__preview-empty {
    font-size: 13px;
    line-height: 1.5;
}

/* 兼容旧类名（避免误渲染空胶囊） */
.ripro-ips__preview-item {
    padding: 6px 10px;
    background: #fff;
    border: 1px solid var(--ripro-ips-border);
    border-radius: 999px;
    font-size: 12.5px;
    color: #5a606f;
    max-width: 360px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition: all .2s ease;
    cursor: pointer;
    position: relative;
    display: none;
}
.ripro-ips__preview-more { display: none; }

/* ---- 高亮标记 ---- */
.ripro-ips__mark {
    background: var(--ripro-ips-highlight);
    color: inherit;
    padding: 0 2px;
    border-radius: 3px;
    font-weight: 500;
    transition: all .2s ease;
    position: relative;
    outline: 1px solid transparent;
}
.ripro-ips__mark--active {
    background: var(--ripro-ips-active);
    color: #fff !important;
    border-radius: 4px;
    padding: 1px 4px;
    box-shadow: 0 4px 14px -4px rgba(var(--ripro-ips-accent-rgb), 0.55);
    z-index: 2;
}

/* pulse 动画（滚动到达时的聚焦呼吸动效 */
@keyframes ipsMarkPulse {
    0%   { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--ripro-ips-accent-rgb), 0.55); }
    50%  { transform: scale(1.08); box-shadow: 0 0 0 10px rgba(var(--ripro-ips-accent-rgb), 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(var(--ripro-ips-accent-rgb), 0); }
}
.ripro-ips__mark--pulse.ripro-ips__mark--active,
.ripro-ips__mark--pulse {
    animation: ipsMarkPulse .7s cubic-bezier(.2,.7,.2,1) both;
}

@keyframes ipsFade {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---- 空结果态 ---- */
.ripro-ips.ripro-ips--no-result .ripro-ips__field {
    background: #fff7f6;
    border-color: rgba(var(--ripro-ips-accent-rgb), 0.25);
}
.ripro-ips.ripro-ips--no-result .ripro-ips__input {
    color: #9f3b2e;
}

/* ---- 响应式 ---- */
@media (max-width: 640px) {
    .ripro-ips__inner { padding: 8px 8px 8px 10px; border-radius: 12px; }
    .ripro-ips__field { border-radius: 10px; padding: 0 40px 0 38px; }
    .ripro-ips__input { height: 42px; line-height: 42px; font-size: 14.5px !important; }
    .ripro-ips__case-label { display: none; }
    .ripro-ips__preview { padding: 8px; }
    .ripro-ips__preview-item { max-width: calc(100% - 4px); }
}

/* ---- 暗黑模式（RiPro 自带暗色 / 媒体查询兜底）---- */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .ripro-ips {
        --ripro-ips-bg: #1c2130;
        --ripro-ips-border: rgba(255,255,255,0.08);
        --ripro-ips-text: #e6e8ef;
        --ripro-ips-muted: #8f94a4;
        --ripro-ips-highlight: rgba(255, 102, 81, 0.28);
        --ripro-ips-shadow: 0 14px 40px -20px rgba(0,0,0,0.55);
    }
    :root:not([data-theme="light"]) .ripro-ips__field,
    :root:not([data-theme="light"]) .ripro-ips__btn,
    :root:not([data-theme="light"]) .ripro-ips__case,
    :root:not([data-theme="light"]) .ripro-ips__preview,
    :root:not([data-theme="light"]) .ripro-ips__preview-item {
        background: #171b28 !important;
    }
    :root:not([data-theme="light"]) .ripro-ips__btn {
        color: var(--ripro-ips-muted) !important;
    }
    :root:not([data-theme="light"]) .ripro-ips__hint {
        background: rgba(255, 102, 81, 0.14);
        color: #f6c6bf;
    }
    :root:not([data-theme="light"]) .ripro-ips__hint.is-noresult {
        background: #3a1e1a;
        color: #ffc2b9;
        border-color: rgba(var(--ripro-ips-accent-rgb), 0.45);
    }
    :root:not([data-theme="light"]) .ripro-ips__preview-hl {
        background: rgba(var(--ripro-ips-accent-rgb), 0.28);
    }
    :root:not([data-theme="light"]) .ripro-ips__preview-item.is-active .ripro-ips__preview-hl {
        background: rgba(255,255,255,0.18);
    }
    :root:not([data-theme="light"]) .ripro-ips__preview.is-empty {
        background: #2a1a18;
        color: #ffc2b9;
        border-color: rgba(var(--ripro-ips-accent-rgb), 0.4);
    }
}