/* ==========================================================================
   HTML/CSS/JS 在线运行预览器（#111）
   视觉概念：轻量 IDE / 终端工作台
   - 深色代码面板 + 电光靛蓝强调色 + 窗口栏 + 控制台
   - 与 #109（纸感单据）、#110（卷宗）完全不同的第三套视觉
   ========================================================================== */

.crp-page {
    --crp-bg: #f4f6f9;
    --crp-panel: #ffffff;
    --crp-panel-2: #eef1f6;
    --crp-ink: #16202b;
    --crp-ink-2: #40505f;
    --crp-muted: #7a8794;
    --crp-line: #e0e5ec;
    --crp-line-2: #ccd4de;
    --crp-accent: #5850ec;
    --crp-accent-soft: #eceafe;
    --crp-code-bg: #0e1620;
    --crp-code-bg-2: #131e2a;
    --crp-code-ink: #d6e2ee;
    --crp-code-dim: #6c8199;
    --crp-ok: #12855c;
    --crp-ok-soft: #e8f6ef;
    --crp-warn: #96620f;
    --crp-warn-soft: #fdf3e1;
    --crp-bad: #b32d2d;
    --crp-bad-soft: #fbeaea;
    --crp-mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
    --crp-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
    --crp-shadow: 0 28px 60px -44px rgba(16, 25, 35, .66);
}

[data-theme="dark"] .crp-page {
    --crp-bg: #0b1118;
    --crp-panel: #111a23;
    --crp-panel-2: #18232e;
    --crp-ink: #e6ecf2;
    --crp-ink-2: #bcc9d6;
    --crp-muted: #8697a8;
    --crp-line: #22303d;
    --crp-line-2: #2d3d4c;
    --crp-accent: #8b86ff;
    --crp-accent-soft: #1c1b3a;
    --crp-code-bg: #080e15;
    --crp-code-bg-2: #0d151e;
    --crp-code-ink: #cfe0f0;
    --crp-code-dim: #5f768c;
    --crp-ok: #4fd1a5;
    --crp-ok-soft: #10251d;
    --crp-warn: #e3b163;
    --crp-warn-soft: #2a2113;
    --crp-bad: #ef8b8b;
    --crp-bad-soft: #2b1616;
    --crp-shadow: 0 30px 64px -40px rgba(0, 0, 0, .9);
}

/* ---------------- 首屏 ---------------- */
.crp-hero {
    position: relative;
    padding: 30px 0 0;
    overflow: hidden;
}
.crp-hero-glow {
    position: absolute; inset: -14% -20% auto -20%; height: 420px;
    background:
        radial-gradient(48% 46% at 16% 0%, color-mix(in srgb, var(--crp-accent) 16%, transparent) 0%, transparent 72%),
        radial-gradient(40% 40% at 86% 6%, color-mix(in srgb, var(--crp-accent) 9%, transparent) 0%, transparent 70%);
    pointer-events: none;
}
.crp-hero-in { position: relative; }

.crp-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: end;
    margin-bottom: 20px;
}
.crp-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    margin-bottom: 10px;
    font-family: var(--crp-mono);
    font-size: 11.5px;
    letter-spacing: .1em;
    color: var(--crp-accent);
}
.crp-eyebrow::before {
    content: ">";
    font-weight: 700;
}
.crp-h1 {
    margin: 0 0 10px;
    font-family: var(--crp-serif);
    font-size: clamp(28px, 3.2vw, 40px);
    line-height: 1.24;
    letter-spacing: -.015em;
    font-weight: 700;
    color: var(--crp-ink);
}
.crp-h1 mark { background: none; color: var(--crp-accent); }
.crp-sub {
    margin: 0;
    max-width: 62ch;
    font-size: 15.2px;
    line-height: 1.86;
    color: var(--crp-ink-2);
}
.crp-sub b { color: var(--crp-ink); font-weight: 600; }

.crp-side {
    display: grid;
    gap: 10px;
    justify-items: end;
}
.crp-theme {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border: 1px solid var(--crp-line-2);
    border-radius: 6px;
    background: var(--crp-panel-2);
}
.crp-theme button {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--crp-muted);
    font: inherit;
    font-size: 12px;
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background .16s, color .16s;
}
.crp-theme button:hover { color: var(--crp-ink); }
.crp-theme button.is-on { background: var(--crp-accent); color: #fff; font-weight: 600; }

/* ---------------- 工作台 ---------------- */
.crp-bench {
    border: 1px solid var(--crp-line-2);
    border-radius: 10px;
    background: var(--crp-panel);
    box-shadow: var(--crp-shadow);
    overflow: hidden;
    margin-bottom: 8px;
}
.crp-bar {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    background: var(--crp-panel-2);
    border-bottom: 1px solid var(--crp-line);
    flex-wrap: wrap;
}
.crp-dots { display: flex; gap: 6px; }
.crp-dots i {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--crp-line-2);
}
.crp-dots i:nth-child(1) { background: #e0655c; }
.crp-dots i:nth-child(2) { background: #e0b25c; }
.crp-dots i:nth-child(3) { background: #5cbf8a; }

.crp-tabs { display: flex; gap: 4px; margin-left: 6px; }
.crp-tab {
    appearance: none;
    border: 1px solid transparent;
    background: transparent;
    color: var(--crp-muted);
    font-family: var(--crp-mono);
    font-size: 12.5px;
    padding: 5px 12px;
    border-radius: 5px;
    cursor: pointer;
    transition: color .16s, background .16s, border-color .16s;
}
.crp-tab:hover { color: var(--crp-ink); }
.crp-tab.is-on {
    background: var(--crp-panel);
    border-color: var(--crp-line-2);
    color: var(--crp-accent);
    font-weight: 600;
}

.crp-tools { display: flex; align-items: center; gap: 6px; margin-left: auto; flex-wrap: wrap; }
.crp-btn {
    appearance: none;
    font: inherit;
    font-size: 12.5px;
    padding: 6px 12px;
    border-radius: 5px;
    border: 1px solid var(--crp-line-2);
    background: var(--crp-panel);
    color: var(--crp-ink-2);
    cursor: pointer;
    transition: border-color .16s, color .16s, background .16s;
    white-space: nowrap;
}
.crp-btn:hover { border-color: var(--crp-ink); color: var(--crp-ink); }
.crp-btn.is-primary {
    background: var(--crp-accent);
    border-color: var(--crp-accent);
    color: #fff;
    font-weight: 600;
}
.crp-btn.is-primary:hover { background: color-mix(in srgb, var(--crp-accent) 88%, #000); }
.crp-switch {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 12.3px; color: var(--crp-muted);
    cursor: pointer;
    user-select: none;
}
.crp-switch input { accent-color: var(--crp-accent); width: 14px; height: 14px; cursor: pointer; }

.crp-split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
    grid-template-rows: minmax(0, 1fr);
    height: clamp(430px, 56vh, 600px);
    min-height: 0;
}

/* 编辑器 */
.crp-editor {
    position: relative;
    background: var(--crp-code-bg);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--crp-line);
    min-width: 0;
}
.crp-code-head {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 8px 12px;
    border-bottom: 1px solid #1d2b39;
    font-family: var(--crp-mono);
    font-size: 11px;
    letter-spacing: .06em;
    color: var(--crp-code-dim);
}
.crp-code-head b { color: #8fa8c0; font-weight: 600; }
.crp-code-body { position: relative; flex: 1 1 auto; min-height: 0; display: flex; }
.crp-lines {
    flex: 0 0 auto;
    padding: 12px 8px 12px 12px;
    text-align: right;
    white-space: pre;
    font-family: var(--crp-mono);
    font-size: 13px;
    line-height: 1.7;
    color: #3f5569;
    user-select: none;
    overflow: hidden;
    border-right: 1px solid #16222f;
    min-width: 42px;
}
.crp-code-wrap {
    position: relative;
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
}

/* 高亮层与 textarea 必须共用同一套排版度量，否则会逐行错开 */
.crp-code,
.crp-hl {
    margin: 0;
    border: 0;
    padding: 12px 14px;
    font-family: var(--crp-mono);
    font-size: 13px;
    line-height: 1.7;
    letter-spacing: normal;
    tab-size: 2;
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
}
.crp-hl {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    background: transparent;
    color: var(--crp-code-ink);
}
.crp-code {
    position: relative;
    z-index: 1;
    flex: 1 1 auto;
    width: 100%;
    min-width: 0;
    resize: none;
    outline: none;
    background: transparent;
    color: transparent;
    caret-color: var(--crp-code-ink);
    overflow: auto;
}
.crp-code::selection { background: rgba(72, 122, 172, .42); }

/* 语法着色（代码区底色恒为深色，两套主题共用一配色） */
.hl-com { color: #55708a; font-style: italic; }
.hl-str { color: #9ed49f; }
.hl-kw  { color: #c79bf0; }
.hl-bui { color: #7fb6e6; }
.hl-num { color: #e6a06a; }
.hl-fn  { color: #74d3d6; }
.hl-cls { color: #f0c674; }
.hl-tag { color: #7fb6e6; }
.hl-att { color: #d9b26a; }
.hl-ent { color: #e6a06a; }
.hl-prop { color: #8fcaee; }
.hl-sel { color: #f0c674; }
.hl-at  { color: #c79bf0; }
.hl-col { color: #e6a06a; }

/* 预览 */
.crp-preview {
    display: flex;
    flex-direction: column;
    background: var(--crp-panel-2);
    min-width: 0;
}
.crp-preview-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--crp-line);
    background: var(--crp-panel);
    font-size: 12px;
    color: var(--crp-muted);
    flex-wrap: wrap;
}
.crp-devices { display: inline-flex; gap: 2px; margin-left: auto; }
.crp-devices button {
    appearance: none;
    border: 1px solid transparent;
    background: transparent;
    color: var(--crp-muted);
    font: inherit;
    font-size: 11.5px;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--crp-mono);
}
.crp-devices button:hover { color: var(--crp-ink); }
.crp-devices button.is-on {
    background: var(--crp-accent-soft);
    color: var(--crp-accent);
    border-color: color-mix(in srgb, var(--crp-accent) 32%, transparent);
    font-weight: 600;
}
.crp-stage {
    flex: 1 1 auto;
    display: grid;
    place-items: center;
    padding: 12px;
    min-height: 0;
    overflow: auto;
    background:
        linear-gradient(45deg, color-mix(in srgb, var(--crp-line) 55%, transparent) 25%, transparent 25%, transparent 75%, color-mix(in srgb, var(--crp-line) 55%, transparent) 75%) 0 0/16px 16px,
        linear-gradient(45deg, color-mix(in srgb, var(--crp-line) 55%, transparent) 25%, transparent 25%, transparent 75%, color-mix(in srgb, var(--crp-line) 55%, transparent) 75%) 8px 8px/16px 16px;
}
.crp-frame {
    width: 100%;
    height: 100%;
    min-height: 380px;
    border: 1px solid var(--crp-line-2);
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 10px 24px -22px rgba(16, 25, 35, .5);
    transition: width .2s ease;
}

/* 控制台 */
.crp-console {
    border-top: 1px solid var(--crp-line);
    background: var(--crp-code-bg-2);
    max-height: 168px;
    overflow: auto;
    font-family: var(--crp-mono);
    font-size: 12.3px;
    line-height: 1.7;
}
.crp-console-head {
    position: sticky; top: 0;
    display: flex; align-items: center; gap: 8px;
    padding: 7px 12px;
    background: #101b26;
    border-bottom: 1px solid #1d2b39;
    color: var(--crp-code-dim);
    font-size: 11px;
    letter-spacing: .06em;
    z-index: 1;
}
.crp-console-head b { color: #8fa8c0; }
.crp-console-head span { margin-left: auto; }
.crp-console-body { padding: 8px 12px 12px; }
.crp-log {
    display: flex; gap: 8px;
    padding: 2px 0;
    color: var(--crp-code-ink);
    white-space: pre-wrap;
    word-break: break-word;
}
.crp-log::before {
    content: "›";
    color: var(--crp-code-dim);
    flex: 0 0 auto;
}
.crp-log.is-warn { color: #f0c674; }
.crp-log.is-error { color: #ff8f8f; }
.crp-log.is-error::before { content: "×"; color: #ff8f8f; }
.crp-log.is-empty { color: var(--crp-code-dim); }
.crp-log.is-empty::before { content: ""; }

/* ---------------- 区块 ---------------- */
.crp-sec { padding-top: 54px; }
.crp-sec-head { margin-bottom: 18px; }
.crp-sec-head h2 {
    display: flex; align-items: baseline; gap: 10px;
    margin: 0 0 8px;
    font-family: var(--crp-serif);
    font-size: clamp(21px, 2.2vw, 26px);
    letter-spacing: -.01em;
    color: var(--crp-ink);
}
.crp-sec-head h2 i {
    font-family: var(--crp-mono);
    font-style: normal;
    font-size: 11px;
    color: var(--crp-accent);
    padding: 2px 6px;
    border-radius: 4px;
    background: var(--crp-accent-soft);
    letter-spacing: .08em;
}
.crp-sec-head p {
    margin: 0;
    max-width: 78ch;
    font-size: 14.2px;
    line-height: 1.86;
    color: var(--crp-muted);
}

/* 模板卡 */
.crp-tpls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.crp-tpl {
    text-align: left;
    appearance: none;
    font: inherit;
    padding: 15px 16px;
    border: 1px solid var(--crp-line);
    border-radius: 8px;
    background: var(--crp-panel);
    cursor: pointer;
    transition: border-color .16s, transform .16s, box-shadow .16s;
}
.crp-tpl:hover {
    border-color: var(--crp-accent);
    transform: translateY(-2px);
    box-shadow: 0 18px 30px -28px rgba(16, 25, 35, .8);
}
.crp-tpl code {
    display: inline-block;
    margin-bottom: 6px;
    font-family: var(--crp-mono);
    font-size: 10.5px;
    letter-spacing: .08em;
    color: var(--crp-accent);
    background: var(--crp-accent-soft);
    padding: 2px 6px;
    border-radius: 3px;
}
.crp-tpl b {
    display: block;
    font-family: var(--crp-serif);
    font-size: 15px;
    color: var(--crp-ink);
    margin-bottom: 4px;
}
.crp-tpl span { display: block; font-size: 12.4px; line-height: 1.72; color: var(--crp-muted); }

/* 校验 */
.crp-checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.crp-checks li {
    display: flex; gap: 10px; align-items: flex-start;
    padding: 11px 14px;
    border: 1px solid var(--crp-line);
    border-left: 3px solid var(--crp-line-2);
    border-radius: 6px;
    background: var(--crp-panel);
    font-size: 13.3px;
    line-height: 1.75;
    color: var(--crp-ink-2);
}
.crp-checks li b { color: var(--crp-ink); font-weight: 600; }
.crp-checks li i {
    flex: 0 0 auto;
    width: 18px; height: 18px; margin-top: 2px;
    display: grid; place-items: center;
    border-radius: 4px;
    font-family: var(--crp-mono);
    font-size: 10px;
    font-style: normal;
    font-weight: 700;
    color: #fff;
    background: var(--crp-muted);
}
.crp-checks li.is-ok { border-left-color: var(--crp-ok); background: var(--crp-ok-soft); }
.crp-checks li.is-ok i { background: var(--crp-ok); }
.crp-checks li.is-warn { border-left-color: var(--crp-warn); background: var(--crp-warn-soft); }
.crp-checks li.is-warn i { background: var(--crp-warn); }
.crp-checks li.is-bad { border-left-color: var(--crp-bad); background: var(--crp-bad-soft); }
.crp-checks li.is-bad i { background: var(--crp-bad); }

/* 快捷键表 */
.crp-keys {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}
.crp-key {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 11px 14px;
    border: 1px solid var(--crp-line);
    border-radius: 6px;
    background: var(--crp-panel);
    font-size: 13.2px;
    color: var(--crp-ink-2);
}
.crp-key kbd {
    font-family: var(--crp-mono);
    font-size: 11.5px;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--crp-line-2);
    border-bottom-width: 2px;
    background: var(--crp-panel-2);
    color: var(--crp-ink);
    white-space: nowrap;
}

/* 说明 / FAQ */
.crp-prose { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.crp-prose > div {
    border: 1px solid var(--crp-line);
    border-radius: 8px;
    background: var(--crp-panel);
    padding: 16px 18px;
}
.crp-prose h3 {
    margin: 0 0 8px;
    font-family: var(--crp-serif);
    font-size: 16px;
    color: var(--crp-ink);
}
.crp-prose p, .crp-prose li { font-size: 13.6px; line-height: 1.9; color: var(--crp-ink-2); }
.crp-prose p { margin: 0 0 8px; }
.crp-prose p:last-child { margin-bottom: 0; }
.crp-prose b { color: var(--crp-ink); }
.crp-prose code {
    font-family: var(--crp-mono);
    font-size: 12.2px;
    padding: 1px 5px;
    border-radius: 3px;
    background: var(--crp-panel-2);
    color: var(--crp-accent);
}

.crp-faq { display: grid; gap: 10px; }
.crp-faq details {
    border: 1px solid var(--crp-line);
    border-radius: 8px;
    background: var(--crp-panel);
    padding: 0 16px;
}
.crp-faq summary {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 0;
    cursor: pointer;
    list-style: none;
    font-size: 14.2px;
    font-weight: 600;
    color: var(--crp-ink);
}
.crp-faq summary::-webkit-details-marker { display: none; }
.crp-faq summary::before {
    content: "▸";
    font-size: 11px;
    color: var(--crp-accent);
    transition: transform .16s;
}
.crp-faq details[open] summary::before { transform: rotate(90deg); }
.crp-faq details p {
    margin: 0 0 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--crp-line-2);
    font-size: 13.5px;
    line-height: 1.9;
    color: var(--crp-ink-2);
}

.crp-note {
    margin-top: 22px;
    padding: 14px 16px;
    border: 1px solid var(--crp-line);
    border-left: 3px solid var(--crp-accent);
    border-radius: 8px;
    background: var(--crp-panel-2);
    font-size: 12.8px;
    line-height: 1.86;
    color: var(--crp-muted);
}
.crp-note b { color: var(--crp-ink-2); }

/* toast */
.crp-toast {
    position: fixed;
    left: 50%; bottom: 28px;
    transform: translate(-50%, 12px);
    z-index: 90;
    max-width: min(88vw, 420px);
    padding: 11px 18px;
    border-radius: 8px;
    background: #16202b;
    color: #eef2f6;
    font-size: 13px;
    line-height: 1.6;
    box-shadow: 0 16px 36px -20px rgba(0, 0, 0, .8);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}
.crp-toast.is-show { opacity: 1; transform: translate(-50%, 0); }
[data-theme="dark"] .crp-toast { background: #e6ecf2; color: #0b1118; }

/* 全屏工作台（用户点击后才出现） */
.crp-bench.is-full {
    position: fixed;
    inset: 12px;
    z-index: 80;
    margin: 0;
    display: flex;
    flex-direction: column;
    overflow: auto;
    box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .7);
}
.crp-bench.is-full .crp-split { flex: 1 1 auto; min-height: 0; }
.crp-bench.is-full .crp-frame { min-height: 0; }

/* 响应式 */
@media (max-width: 1000px) {
    /* 单栏堆叠：改回自然高度，否则固定高会把编辑器/预览挤到溢出裁切 */
    .crp-split {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto auto;
        height: auto;
    }
    .crp-editor { border-right: 0; border-bottom: 1px solid var(--crp-line); }
    .crp-code-body { min-height: 240px; }
    .crp-frame { min-height: 300px; }
    .crp-tpls { grid-template-columns: 1fr; }
    .crp-prose { grid-template-columns: 1fr; }
    .crp-keys { grid-template-columns: 1fr; }
    .crp-head { grid-template-columns: minmax(0, 1fr); align-items: start; }
    .crp-side { justify-items: start; }
}

@media (max-width: 560px) {
    .crp-hero { padding-top: 20px; }
    .crp-h1 { font-size: 25px; }
    .crp-sub { font-size: 14.2px; line-height: 1.8; }
    .crp-bar { padding: 8px 10px; gap: 6px; }
    .crp-tab { padding: 5px 9px; font-size: 12px; }
    .crp-tools { width: 100%; margin-left: 0; }
    .crp-btn { flex: 1 1 auto; text-align: center; }
    .crp-code, .crp-hl { font-size: 12.4px; }
    .crp-lines { font-size: 12.4px; }
}

@media print {
    .crp-bench, .crp-toast, .crp-theme { display: none !important; }
}