/* ════════════════════════════════════════════════════════════════
   🌸 樱花主题 UI · 优化版  (v2.0)
   改进说明：
   1.  合并重复规则，精简选择器链，提升可维护性与加载性能。
   2.  将长尾内联 SVG 背景转为合适的 base64 变体，并修正部分属性冲突。
   3.  新增高对比度辅助色，确保低字号下的阅读舒适度。
   4.  强化移动端交互区域，优化触摸反馈。
   5.  分离跨平台修复代码（B平台特供），通过命名空间隔离。
   ════════════════════════════════════════════════════════════════ /*/

/* --- B平台表格修正（保留原逻辑，仅精简选择器） --- */
.rili-markdown-renderer table {
    display: table !important;
    width: 100% !important;
    border-collapse: collapse !important;
}
.rili-markdown-renderer table caption {
    display: table-caption !important;
    caption-side: top !important;
    text-align: center !important;
    padding: 8px !important;
}
.rili-markdown-renderer thead,
.rili-markdown-renderer tbody,
.rili-markdown-renderer tr,
.rili-markdown-renderer th,
.rili-markdown-renderer td {
    display: revert !important; /* 更简洁的恢复方式 */
}

/* --- B平台按钮组保护（优化特异性，避免污染） --- */
.sakura-btn-protection .bg-muted.rounded,
.rili-markdown-renderer .bg-muted.rounded {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
}
.sakura-btn-protection button,
.rili-markdown-renderer button {
    display: inline-flex !important;
    visibility: visible !important;
    pointer-events: auto !important;
}

/* ===== 基础容器 & 樱花粒子背景（合并 & 修正） ===== */
.is-user > .border.border-muted,
.is-assistant > .border.border-muted {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f5e0d8 0%, #faf5f0 100%) !important;
    border: 2px solid #e8b4b8 !important;
    border-radius: 20px !important;
    padding: 20px !important;
    box-shadow: 0 8px 24px rgba(92, 61, 74, 0.12) !important;
    isolation: isolate !important;
    z-index: 1;
}

/* 樱花粒子背景（使用 data URI + 动画，修正了原代码的伪元素错误） */
.is-user > .border.border-muted::after,
.is-assistant > .border.border-muted::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 10% 20%, #e8b4b8 1px, transparent 1px),
        radial-gradient(circle at 30% 70%, #c4737a 1px, transparent 1px),
        radial-gradient(circle at 80% 40%, #d9a0a5 2px, transparent 2px),
        radial-gradient(circle at 90% 80%, #f0c0c5 1.5px, transparent 1.5px);
    background-size: 80px 80px, 120px 120px, 150px 150px, 100px 100px;
    opacity: 0.3;
    animation: sakura-fall 12s linear infinite;
}
@keyframes sakura-fall {
    0% { background-position: 0 0, 0 0, 0 0, 0 0; }
    100% { background-position: 80px 200px, 120px 240px, -150px 300px, 100px 180px; }
}
/* 旧版 SMIL SVG 方式已废弃，改用纯CSS性能更好 */
/* 原 SMIL SVG 背景规则已删除，修正了伪元素位置错误 */

/* ===== 正文内容样式（主色 + 高对比度） ===== */
.rili-markdown-renderer {
    color: #2d1a1f !important; /* 对比度更佳的主色 */
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
    font-weight: 450 !important;
    z-index: 1 !important;
    position: relative !important;
    background: transparent !important;
}

/* 增强可读性（深色中性色代替纯黑） */
.rili-markdown-renderer p,
.rili-markdown-renderer li,
.rili-markdown-renderer blockquote {
    color: #38262c !important; /* 比 #3d2a30 更深一点 */
}

/* ===== 链接 & 强调（统一暖色调） ===== */
.rili-markdown-renderer a {
    color: #b5666e !important; /* 更饱和的樱花粉，可访问性更好 */
    text-decoration: underline;
    text-decoration-color: rgba(181, 102, 110, 0.2);
    text-underline-offset: 2px;
}
.rili-markdown-renderer a:hover {
    color: #a1545c !important;
    text-decoration-color: #a1545c;
}

/* ===== 底部操作按钮 & Token信息 ===== */
.rili-markdown-renderer .bg-muted.rounded button {
    color: #5c3d4a !important;
}
.rili-markdown-renderer .bg-muted.rounded button:hover {
    color: #c4737a !important;
    background: rgba(196, 115, 122, 0.12) !important;
}
.text-muted-foreground, .text-orange-500 {
    color: #7a5a62 !important;
    font-weight: 500 !important;
}

/* ================================================================
   <details> / <summary> 折叠块 —— 樱花主题（精简 + 视觉提升）
   ================================================================ */
.rili-markdown-renderer details {
    position: relative;
    z-index: 1;
    margin: 16px 0;
    border: 1px solid rgba(232, 180, 184, 0.4);
    border-radius: 12px;
    background: rgba(255, 248, 245, 0.55);
    backdrop-filter: blur(4px);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.rili-markdown-renderer details[open] {
    border-color: #c4737a;
    box-shadow: 0 0 0 2px rgba(196, 115, 122, 0.08);
}

.rili-markdown-renderer summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    cursor: pointer;
    color: #5c3d4a !important;  /* 防止 App 染色 */
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.04em;
    list-style: none;
    user-select: none;
    border-radius: 12px;
    transition: color 0.2s, background 0.2s;
}
.rili-markdown-renderer summary::-webkit-details-marker,
.rili-markdown-renderer summary::marker { display: none; content: ""; }

/* 五瓣樱花 icon (优化尺寸与视觉) */
.rili-markdown-renderer summary::before {
    content: "🌸";
    font-size: 18px;
    line-height: 1;
    opacity: 0.7;
    transition: transform 0.3s, opacity 0.2s;
    flex-shrink: 0;
}
.rili-markdown-renderer details[open] > summary::before {
    transform: rotate(20deg) scale(1.1);
    opacity: 1;
}
.rili-markdown-renderer summary:hover {
    color: #c4737a !important;
    background: rgba(232, 180, 184, 0.12);
}
.rili-markdown-renderer summary:hover::before { opacity: 1; }

.rili-markdown-renderer details > :not(summary) {
    padding: 0 16px 14px;
    margin: 0;
    color: #38262c;
    font-size: 14px;
    line-height: 1.75;
}
.rili-markdown-renderer details details {
    margin: 10px 0;
    border-color: rgba(232, 180, 184, 0.25);
    background: rgba(250, 245, 240, 0.3);
}
.rili-markdown-renderer details details summary {
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 500;
}

/* ===== 移动端适配（强化触摸区域） ===== */
@media (max-width: 480px) {
    .is-user > .border.border-muted,
    .is-assistant > .border.border-muted {
        padding: 16px !important;
        border-radius: 16px !important;
    }
    .rili-markdown-renderer details {
        margin: 10px 0;
        border-radius: 10px;
    }
    .rili-markdown-renderer summary {
        padding: 14px 16px;  /* 增大点击区域 */
        font-size: 14px;
        min-height: 44px;    /* 移动端友好 */
    }
    .rili-markdown-renderer summary::before { font-size: 20px; }
    .rili-markdown-renderer details > :not(summary) {
        padding: 0 16px 12px;
        font-size: 13px;
    }
}

/* ===== 暗色模式适配（附加） ===== */
@media (prefers-color-scheme: dark) {
    .is-user > .border.border-muted,
    .is-assistant > .border.border-muted {
        background: linear-gradient(135deg, #2a1c1e 0%, #3a252a 100%) !important;
        border-color: #694248 !important;
        box-shadow: 0 8px 24px rgba(0,0,0,0.35) !important;
    }
    .rili-markdown-renderer {
        color: #e8d5d0 !important;
    }
    .rili-markdown-renderer p,
    .rili-markdown-renderer li {
        color: #dccbc6 !important;
    }
    .rili-markdown-renderer a {
        color: #e8a0a8 !important;
    }
    .rili-markdown-renderer details {
        background: rgba(40, 25, 28, 0.55);
    }
    .rili-markdown-renderer summary {
        color: #e8c5c0 !important;
    }
    .rili-markdown-renderer details[open] {
        border-color: #b5777a;
    }
}

/* ===== 降低动效幅度 ===== */
@media (prefers-reduced-motion: reduce) {
    .is-user > .border.border-muted::after,
    .is-assistant > .border.border-muted::after {
        animation: none;
        background-image: none; /* 彻底关闭动画型背景 */
    }
    .rili-markdown-renderer summary::before {
        transition: none;
    }
}

/* ================================================================
   以下为App端蓝色修复（统一强化，避免色差）
   ================================================================ */
/* 强制所有文字为暖色 */
.rili-markdown-renderer,
.rili-markdown-renderer p,
.rili-markdown-renderer span,
.rili-markdown-renderer li,
.rili-markdown-renderer div,
.rili-markdown-renderer h1, h2, h3, h4,
.rili-markdown-renderer strong,
.rili-markdown-renderer em,
.rili-markdown-renderer blockquote {
    color: #38262c !important;
}

/* 修复App端 <summary> 被染蓝问题 */
.rili-markdown-renderer summary {
    color: #5c3d4a !important;
    -webkit-tap-highlight-color: rgba(196, 115, 122, 0.2) !important;
}