/* ==========================================================================
   Unicode 编码转换 —— 「双栏对照」皮肤（紫罗兰 / 靛蓝）
   ========================================================================== */

.uc-page {
    --uc-accent: #6d28d9;
    --uc-accent-2: #4338ca;
    --uc-line: var(--c-border, #e5e4f0);
    --uc-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    background: var(--c-bg, #f7f6fb);
    padding: 26px 0 64px;
}

.uc-wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 首屏 ---------- */
.uc-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin: 14px 0 20px;
}

.uc-eyebrow {
    display: inline-block;
    font-family: var(--uc-mono);
    font-size: 11.5px;
    letter-spacing: 0.14em;
    color: var(--uc-accent);
    background: rgba(109, 40, 217, 0.09);
    border: 1px solid rgba(109, 40, 217, 0.22);
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 12px;
}

.uc-hero h1 {
    margin: 0 0 10px;
    font-size: 38px;
    line-height: 1.16;
    letter-spacing: -0.02em;
    color: var(--c-text, #101828);
}

.uc-hero h1 em {
    font-style: normal;
    background: linear-gradient(120deg, #6d28d9, #4338ca);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.uc-hero p {
    margin: 0 0 14px;
    max-width: 640px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--c-text-sub, #4b5563);
}

.uc-hero p code {
    font-family: var(--uc-mono);
    font-size: 13px;
    padding: 1px 6px;
    border-radius: 5px;
    background: rgba(109, 40, 217, 0.1);
    color: var(--uc-accent);
}

.uc-chips { display: flex; flex-wrap: wrap; gap: 8px; }

.uc-chips span {
    font-size: 12.5px;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--uc-line);
    color: var(--c-text-sub, #4b5563);
}

.uc-hero-code {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: 14px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--uc-line);
    box-shadow: 0 12px 26px rgba(16, 24, 40, 0.06);
    font-family: var(--uc-mono);
    font-size: 18px;
    color: var(--uc-accent);
    flex-shrink: 0;
}

.uc-arrow { color: #c4b5fd; font-size: 14px; }

/* ---------- 工具栏 ---------- */
.uc-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--uc-line);
    box-shadow: 0 8px 22px rgba(16, 24, 40, 0.05);
    margin-bottom: 14px;
}

.uc-modes {
    display: inline-flex;
    gap: 2px;
    padding: 3px;
    border-radius: 10px;
    background: var(--c-bg-soft, #f2f1f8);
    border: 1px solid var(--uc-line);
}

.uc-modes button {
    border: 0;
    background: transparent;
    color: var(--c-text-sub, #5b6478);
    font-size: 13px;
    padding: 6px 14px;
    border-radius: 7px;
    cursor: pointer;
}

.uc-modes button.is-on {
    background: var(--c-bg-card, #fff);
    color: var(--uc-accent);
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(16, 24, 40, 0.08);
}

.uc-sep { width: 1px; height: 22px; background: var(--uc-line); }

.uc-field {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--c-text-muted, #7a8699);
}

.uc-field select {
    height: 32px;
    padding: 0 8px;
    border-radius: 8px;
    border: 1px solid var(--uc-line);
    background: var(--c-bg-card, #fff);
    color: var(--c-text, #101828);
    font-size: 12.5px;
    font-family: var(--uc-mono);
    outline: none;
}

.uc-check {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12.5px;
    color: var(--c-text-muted, #7a8699);
    cursor: pointer;
}

.uc-check input { accent-color: var(--uc-accent); }

.uc-swap {
    margin-left: auto;
    height: 34px;
    padding: 0 14px;
    border-radius: 9px;
    border: 1px solid rgba(109, 40, 217, 0.35);
    background: rgba(109, 40, 217, 0.08);
    color: var(--uc-accent);
    font-size: 12.5px;
    cursor: pointer;
}

.uc-swap:hover { background: rgba(109, 40, 217, 0.14); }

/* ---------- 双栏 ---------- */
.uc-desk {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.uc-pane {
    display: flex;
    flex-direction: column;
    min-height: 380px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--uc-line);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 10px 26px rgba(16, 24, 40, 0.05);
}

.uc-pane-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--uc-line);
    background: var(--c-bg-soft, #faf9fd);
}

.uc-pane-head h2 {
    margin: 0;
    font-size: 12.5px;
    letter-spacing: 0.06em;
    font-weight: 600;
    color: var(--c-text-muted, #7a8699);
}

.uc-stat { font-family: var(--uc-mono); font-size: 11.5px; color: var(--c-text-muted, #8a94a3); }

.uc-text {
    flex: 1;
    min-height: 280px;
    padding: 14px;
    border: 0;
    outline: none;
    resize: none;
    background: transparent;
    color: #1f2937;
    font-family: var(--uc-mono);
    font-size: 13px;
    line-height: 1.85;
    white-space: pre-wrap;
    word-break: break-all;
}

.uc-text--out {
    margin: 0;
    overflow: auto;
    color: var(--uc-accent);
}

.uc-pane-foot {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-top: 1px solid var(--uc-line);
    background: var(--c-bg-soft, #faf9fd);
}

.uc-mini {
    border: 1px solid var(--uc-line);
    background: transparent;
    color: var(--c-text-sub, #5b6478);
    font-size: 11.5px;
    padding: 4px 10px;
    border-radius: 7px;
    cursor: pointer;
}

.uc-mini:hover { color: var(--uc-accent); border-color: rgba(109, 40, 217, 0.4); }

.uc-grow { flex: 1; }

.uc-hint { font-size: 11.5px; color: var(--c-text-muted, #8a94a3); }

/* ---------- 格式说明 ---------- */
.uc-formats {
    margin-top: 26px;
}

.uc-formats h2 {
    margin: 0 0 12px;
    font-size: 18px;
    color: var(--c-text, #101828);
}

.uc-format-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.uc-format-item {
    padding: 14px;
    border-radius: 12px;
    background: var(--c-bg-card, #fff);
    border: 1px solid var(--uc-line);
}

.uc-format-item b {
    display: block;
    font-family: var(--uc-mono);
    font-size: 15px;
    color: var(--uc-accent);
    margin-bottom: 6px;
}

.uc-format-item span {
    font-size: 12.5px;
    line-height: 1.75;
    color: var(--c-text-sub, #5b6478);
}

.uc-info-tabs { margin-top: 30px; }

/* ---------- 深色主题 ---------- */
:root[data-theme="dark"] .uc-page { background: #0a1018; }

:root[data-theme="dark"] .uc-toolbar,
:root[data-theme="dark"] .uc-pane,
:root[data-theme="dark"] .uc-hero-code,
:root[data-theme="dark"] .uc-chips span,
:root[data-theme="dark"] .uc-format-item {
    background: #131c2b;
    border-color: #223047;
}

:root[data-theme="dark"] .uc-hero h1,
:root[data-theme="dark"] .uc-formats h2 { color: #e6edf9; }
:root[data-theme="dark"] .uc-hero p { color: #9fb0c6; }

:root[data-theme="dark"] .uc-modes { background: #0d1622; border-color: #223047; }
:root[data-theme="dark"] .uc-modes button.is-on { background: #1b2739; color: #c4b5fd; }

:root[data-theme="dark"] .uc-text { color: #d6e2f0; }
:root[data-theme="dark"] .uc-text--out { color: #c4b5fd; }

:root[data-theme="dark"] .uc-pane-head,
:root[data-theme="dark"] .uc-pane-foot { background: #0d1622; border-color: #223047; }

:root[data-theme="dark"] .uc-field select {
    background: #0d1622;
    border-color: #223047;
    color: #d6e2f0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .uc-desk { grid-template-columns: 1fr; }
    .uc-format-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .uc-hero-code { display: none; }
}

@media (max-width: 640px) {
    .uc-hero h1 { font-size: 27px; }
    .uc-format-grid { grid-template-columns: 1fr; }
    .uc-swap { margin-left: 0; }
}