/* ==========================================================================
   演讲时长与讲稿字数计算器 /tool/presentation-timing-calc
   视觉主题：午夜聚光 —— 靛紫幕布 + 暖金追光 + 冷瓷白台面
   标题用衬线体（讲稿气质），数字用等宽体（时间码），全站唯一配色
   深浅双主题：跟随导航栏 #themeToggle，页面内不另设开关
   ========================================================================== */

.ptc-page {
    /* ---- 浅色（默认） ---- */
    --ptc-bg: #f5f3fc;
    --ptc-bg-2: #ece7fa;
    --ptc-card: #ffffff;
    --ptc-card-2: #fbfaff;
    --ptc-ink: #1b1733;
    --ptc-ink-2: #554d78;
    --ptc-ink-3: #857ea6;
    --ptc-line: #e3ddf5;
    --ptc-line-2: #f0ecfb;
    --ptc-violet: #4a30a8;
    --ptc-violet-2: #6b4fd8;
    --ptc-violet-soft: #ece6ff;
    --ptc-gold: #b8791a;
    --ptc-gold-2: #d99a2b;
    --ptc-gold-soft: #fbf0d9;
    --ptc-red: #ad2b46;
    --ptc-red-soft: #fbe6eb;
    --ptc-green: #157a5b;
    --ptc-green-soft: #e1f5ed;
    --ptc-shadow: 0 26px 64px rgba(38, 25, 92, .13);
    --ptc-shadow-sm: 0 8px 24px rgba(38, 25, 92, .08);
    --ptc-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --ptc-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
    --ptc-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --ptc-radius: 22px;

    position: relative;
    margin-top: 22px;
    padding: 30px 30px 34px;
    border-radius: var(--ptc-radius);
    border: 1px solid var(--ptc-line);
    background:
        radial-gradient(1100px 420px at 12% -12%, rgba(107, 79, 216, .16), transparent 62%),
        radial-gradient(760px 380px at 92% 4%, rgba(217, 154, 43, .14), transparent 60%),
        linear-gradient(180deg, var(--ptc-bg-2), var(--ptc-bg));
    box-shadow: var(--ptc-shadow);
    color: var(--ptc-ink);
    font-family: var(--ptc-sans);
    font-size: 14.5px;
    line-height: 1.78;
    overflow: hidden;
    font-variant-numeric: tabular-nums;
}

/* 聚光灯光束 + 台面网点 */
.ptc-page::before {
    content: "";
    position: absolute;
    inset: -40% -10% auto -10%;
    height: 620px;
    background:
        conic-gradient(from 200deg at 50% 0%, transparent 0deg, rgba(107, 79, 216, .10) 16deg, transparent 34deg),
        conic-gradient(from 150deg at 50% 0%, transparent 0deg, rgba(217, 154, 43, .10) 12deg, transparent 30deg);
    pointer-events: none;
    z-index: 0;
}
.ptc-page::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(74, 48, 168, .10) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: .5;
    pointer-events: none;
    z-index: 0;
}
.ptc-page > * { position: relative; z-index: 1; }
.ptc-page * { box-sizing: border-box; }

:root[data-theme="dark"] .ptc-page {
    --ptc-bg: #0a0816;
    --ptc-bg-2: #100d20;
    --ptc-card: #16122c;
    --ptc-card-2: #1b1636;
    --ptc-ink: #ece7fb;
    --ptc-ink-2: #a9a1c8;
    --ptc-ink-3: #7c7599;
    --ptc-line: #2a2447;
    --ptc-line-2: #211c3a;
    --ptc-violet: #b3a2ff;
    --ptc-violet-2: #cfc2ff;
    --ptc-violet-soft: #221b45;
    --ptc-gold: #e8b45f;
    --ptc-gold-2: #f0c777;
    --ptc-gold-soft: #2e2513;
    --ptc-red: #ff8fa3;
    --ptc-red-soft: #351b25;
    --ptc-green: #5fd3ab;
    --ptc-green-soft: #122d26;
    --ptc-shadow: 0 26px 70px rgba(0, 0, 0, .6);
    --ptc-shadow-sm: 0 8px 26px rgba(0, 0, 0, .45);
    background:
        radial-gradient(1000px 420px at 10% -14%, rgba(107, 79, 216, .30), transparent 62%),
        radial-gradient(700px 360px at 92% 2%, rgba(217, 154, 43, .16), transparent 62%),
        linear-gradient(180deg, var(--ptc-bg-2), var(--ptc-bg));
}
:root[data-theme="dark"] .ptc-page::after {
    background-image: radial-gradient(rgba(179, 162, 255, .14) 1px, transparent 1px);
    opacity: .6;
}

/* ===================== 排版基座 ===================== */
.ptc-page h1,
.ptc-page h2,
.ptc-page h3,
.ptc-page h4 { margin: 0; line-height: 1.34; }
.ptc-page h1 {
    font-family: var(--ptc-serif);
    font-size: 36px;
    font-weight: 700;
    letter-spacing: .5px;
    color: var(--ptc-ink);
}
.ptc-page h1 em {
    font-style: normal;
    color: var(--ptc-violet);
}
.ptc-page h2 {
    font-family: var(--ptc-serif);
    font-size: 21px;
    font-weight: 700;
    color: var(--ptc-ink);
}
.ptc-page h3 { font-size: 15px; font-weight: 700; color: var(--ptc-ink); }
.ptc-page b { font-weight: 700; }
.ptc-page a { color: var(--ptc-violet); }

.ptc-mono { font-family: var(--ptc-mono); font-variant-numeric: tabular-nums; }

/* ===================== 首屏 ===================== */
.ptc-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 376px;
    gap: 30px;
    align-items: start;
    padding-bottom: 6px;
}
.ptc-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.4px;
    text-transform: uppercase;
    color: var(--ptc-gold);
    background: var(--ptc-gold-soft);
    border: 1px solid color-mix(in srgb, var(--ptc-gold) 26%, transparent);
    border-radius: 999px;
    padding: 4px 14px 4px 11px;
    margin-bottom: 14px;
}
.ptc-kicker::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ptc-gold);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--ptc-gold) 18%, transparent);
}
.ptc-lead {
    margin: 12px 0 16px;
    font-size: 15.5px;
    line-height: 1.95;
    color: var(--ptc-ink-2);
    max-width: 60ch;
}
.ptc-lead b { color: var(--ptc-violet); }
.ptc-lead i {
    font-style: normal;
    color: var(--ptc-red);
    font-weight: 700;
}

.ptc-tags { list-style: none; margin: 0 0 20px; padding: 0; display: flex; flex-wrap: wrap; gap: 7px; }
.ptc-tags li {
    font-size: 12px;
    color: var(--ptc-ink-2);
    background: var(--ptc-card);
    border: 1px solid var(--ptc-line);
    border-radius: 8px;
    padding: 4px 11px;
    box-shadow: var(--ptc-shadow-sm);
}

.ptc-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.ptc-hero-note {
    margin: 12px 0 0;
    font-size: 12.5px;
    color: var(--ptc-ink-3);
}

/* ---------- 舞台时钟 ---------- */
.ptc-clock {
    background: var(--ptc-card);
    border: 1px solid var(--ptc-line);
    border-radius: 20px;
    padding: 18px 20px 16px;
    box-shadow: var(--ptc-shadow-sm);
    position: relative;
    overflow: hidden;
}
.ptc-clock::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ptc-violet), var(--ptc-violet-2) 45%, var(--ptc-gold));
}
.ptc-clock-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 1px;
    color: var(--ptc-ink-3);
}
.ptc-clock-head b {
    font-family: var(--ptc-serif);
    font-size: 15px;
    letter-spacing: .5px;
    color: var(--ptc-ink);
}
.ptc-dial {
    position: relative;
    width: 176px;
    height: 176px;
    margin: 10px auto 6px;
}
.ptc-dial svg { display: block; width: 100%; height: 100%; transform: rotate(-90deg); }
.ptc-dial-track { fill: none; stroke: var(--ptc-line-2); stroke-width: 11; }
.ptc-dial-arc {
    fill: none;
    stroke: var(--ptc-violet);
    stroke-width: 11;
    stroke-linecap: round;
    transition: stroke-dashoffset .45s cubic-bezier(.22, .61, .36, 1), stroke .3s ease;
}
.ptc-dial-arc[data-tone="safe"] { stroke: var(--ptc-green); }
.ptc-dial-arc[data-tone="info"] { stroke: var(--ptc-violet-2); }
.ptc-dial-arc[data-tone="tight"] { stroke: var(--ptc-gold-2); }
.ptc-dial-arc[data-tone="over"] { stroke: #e07a3a; }
.ptc-dial-arc[data-tone="danger"] { stroke: var(--ptc-red); }
.ptc-dial-tick { stroke: var(--ptc-line); stroke-width: 1.5; }
.ptc-dial-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    text-align: center;
    pointer-events: none;
}
.ptc-dial-label { font-size: 11.5px; letter-spacing: 1.6px; color: var(--ptc-ink-3); }
.ptc-dial-total {
    font-family: var(--ptc-mono);
    font-size: 29px;
    font-weight: 700;
    letter-spacing: -1px;
    color: var(--ptc-ink);
    line-height: 1.1;
}
.ptc-dial-target { font-size: 11.5px; color: var(--ptc-ink-3); }
.ptc-dial-target b { font-family: var(--ptc-mono); color: var(--ptc-ink-2); }

.ptc-verdict {
    display: block;
    width: fit-content;
    margin: 4px auto 12px;
    padding: 5px 16px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .5px;
    background: var(--ptc-violet-soft);
    color: var(--ptc-violet);
    border: 1px solid color-mix(in srgb, var(--ptc-violet) 24%, transparent);
}
.ptc-verdict[data-tone="safe"] {
    background: var(--ptc-green-soft);
    color: var(--ptc-green);
    border-color: color-mix(in srgb, var(--ptc-green) 26%, transparent);
}
.ptc-verdict[data-tone="tight"] {
    background: var(--ptc-gold-soft);
    color: var(--ptc-gold);
    border-color: color-mix(in srgb, var(--ptc-gold) 30%, transparent);
}
.ptc-verdict[data-tone="over"],
.ptc-verdict[data-tone="danger"] {
    background: var(--ptc-red-soft);
    color: var(--ptc-red);
    border-color: color-mix(in srgb, var(--ptc-red) 28%, transparent);
}

.ptc-kpis { display: grid; gap: 0; border-top: 1px dashed var(--ptc-line); }
.ptc-kpi {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 7px 0;
    border-bottom: 1px dotted var(--ptc-line-2);
}
.ptc-kpi:last-child { border-bottom: none; }
.ptc-kpi span { font-size: 13px; color: var(--ptc-ink-2); }
.ptc-kpi b { font-family: var(--ptc-mono); font-size: 16px; font-weight: 700; color: var(--ptc-ink); }
.ptc-kpi b[data-tone="over"] { color: var(--ptc-red); }
.ptc-kpi b[data-tone="ok"] { color: var(--ptc-green); }

/* ===================== 示例条 ===================== */
.ptc-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 20px 0 0;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px dashed var(--ptc-line);
    background: color-mix(in srgb, var(--ptc-card) 72%, transparent);
}
.ptc-presets-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.4px;
    color: var(--ptc-ink-3);
    margin-right: 2px;
}
.ptc-presets button {
    font-family: inherit;
    font-size: 12.5px;
    color: var(--ptc-ink-2);
    background: var(--ptc-card);
    border: 1px solid var(--ptc-line);
    border-radius: 9px;
    padding: 6px 12px;
    cursor: pointer;
    transition: all .16s ease;
}
.ptc-presets button:hover {
    color: var(--ptc-violet);
    border-color: var(--ptc-violet);
    background: var(--ptc-violet-soft);
    transform: translateY(-1px);
}
.ptc-presets button:active { transform: translateY(0); }

/* ===================== 校验条 ===================== */
.ptc-errbar {
    margin-top: 16px;
    border-radius: 12px;
    padding: 11px 15px;
    font-size: 13px;
    line-height: 1.8;
    background: var(--ptc-red-soft);
    border: 1px solid color-mix(in srgb, var(--ptc-red) 28%, transparent);
    color: var(--ptc-red);
}
.ptc-errbar b { display: block; margin-bottom: 2px; }
.ptc-errbar span { display: block; }
.ptc-errbar.is-warn {
    background: var(--ptc-gold-soft);
    border-color: color-mix(in srgb, var(--ptc-gold) 30%, transparent);
    color: var(--ptc-gold);
}

/* ===================== 面板 ===================== */
.ptc-panel {
    margin-top: 20px;
    padding: 22px 24px 24px;
    background: var(--ptc-card);
    border: 1px solid var(--ptc-line);
    border-radius: 18px;
    box-shadow: var(--ptc-shadow-sm);
}
.ptc-panel-head {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 2px 12px;
    align-items: start;
    margin-bottom: 18px;
}
.ptc-step {
    grid-row: span 2;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    background: var(--ptc-violet-soft);
    color: var(--ptc-violet);
    border: 1px solid color-mix(in srgb, var(--ptc-violet) 22%, transparent);
    font-family: var(--ptc-mono);
    font-size: 14px;
    font-weight: 700;
}
.ptc-panel-head h2 { grid-column: 2; }
.ptc-panel-head p {
    grid-column: 2;
    margin: 5px 0 0;
    font-size: 13.5px;
    color: var(--ptc-ink-2);
    max-width: 76ch;
}
.ptc-panel-head--plain { grid-template-columns: 1fr; }
.ptc-panel-head--plain h2,
.ptc-panel-head--plain p { grid-column: 1; }

.ptc-cols {
    display: grid;
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 26px;
    align-items: start;
}

/* ===================== 表单 ===================== */
.ptc-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.ptc-field { display: block; min-width: 0; }
.ptc-field.is-wide { grid-column: span 2; }
.ptc-label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--ptc-ink);
    margin-bottom: 6px;
}
.ptc-label small {
    font-weight: 400;
    font-size: 11.5px;
    color: var(--ptc-ink-3);
}
.ptc-input-row { display: flex; align-items: stretch; }
.ptc-page .ptc-input {
    flex: 1;
    min-width: 0;
    height: 42px;
    padding: 0 12px;
    font-family: var(--ptc-mono);
    font-size: 15px;
    font-weight: 600;
    color: var(--ptc-ink);
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line);
    border-radius: 10px;
    outline: none;
    transition: border-color .16s ease, box-shadow .16s ease;
}
.ptc-page .ptc-input:focus {
    border-color: var(--ptc-violet);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ptc-violet) 16%, transparent);
}
.ptc-page .ptc-input::placeholder { color: var(--ptc-ink-3); font-weight: 400; }
/* 深色下站点级 input/textarea 覆盖（theme-toggle.css 的 :root[data-theme="dark"] input）
   选择器权重更高，避免输入框被刷成半透明白底 */
:root[data-theme="dark"] .ptc-page .ptc-input,
:root[data-theme="dark"] .ptc-page .ptc-textarea {
    background: var(--ptc-card-2);
    color: var(--ptc-ink);
    border-color: var(--ptc-line);
}
.ptc-page .ptc-input.is-bad {
    border-color: var(--ptc-red);
    background: var(--ptc-red-soft);
}
.ptc-unit {
    display: grid;
    place-items: center;
    min-width: 60px;
    padding: 0 10px;
    margin-left: 7px;
    font-size: 12px;
    color: var(--ptc-ink-3);
    background: var(--ptc-violet-soft);
    border: 1px solid var(--ptc-line);
    border-radius: 10px;
    white-space: nowrap;
}
.ptc-page .ptc-range {
    width: 100%;
    margin: 9px 0 0;
    height: 5px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(90deg,
        var(--ptc-violet-2) 0 var(--ptc-range-pct, 0%),
        var(--ptc-line) var(--ptc-range-pct, 0%) 100%);
    -webkit-appearance: none;
    appearance: none;
    outline: none;
    cursor: pointer;
}
:root[data-theme="dark"] .ptc-page .ptc-range {
    background: linear-gradient(90deg,
        var(--ptc-violet) 0 var(--ptc-range-pct, 0%),
        var(--ptc-line) var(--ptc-range-pct, 0%) 100%);
}
.ptc-page .ptc-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--ptc-card);
    border: 3px solid var(--ptc-violet);
    box-shadow: 0 2px 6px rgba(74, 48, 168, .3);
    cursor: pointer;
}
.ptc-page .ptc-range::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--ptc-card);
    border: 3px solid var(--ptc-violet);
    cursor: pointer;
}
.ptc-hint {
    margin: 9px 0 0;
    font-size: 12px;
    color: var(--ptc-ink-3);
    line-height: 1.7;
}

/* ===================== 建议卡 ===================== */
.ptc-advice-list { display: grid; gap: 10px; }
.ptc-advice {
    position: relative;
    padding: 12px 15px 12px 17px;
    border-radius: 12px;
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line);
    border-left: 3px solid var(--ptc-violet);
}
.ptc-advice h3 { font-size: 14px; margin-bottom: 4px; color: var(--ptc-ink); }
.ptc-advice p { margin: 0; font-size: 13px; line-height: 1.8; color: var(--ptc-ink-2); }
.ptc-advice[data-tone="ok"] { border-left-color: var(--ptc-green); background: color-mix(in srgb, var(--ptc-green-soft) 55%, var(--ptc-card)); }
.ptc-advice[data-tone="safe"] { border-left-color: var(--ptc-green); }
.ptc-advice[data-tone="plan"] { border-left-color: var(--ptc-gold); background: color-mix(in srgb, var(--ptc-gold-soft) 45%, var(--ptc-card)); }
.ptc-advice[data-tone="warn"] { border-left-color: var(--ptc-gold-2); }
.ptc-advice[data-tone="words"] { border-left-color: var(--ptc-violet-2); }
.ptc-advice[data-tone="over"],
.ptc-advice[data-tone="bad"] { border-left-color: var(--ptc-red); background: color-mix(in srgb, var(--ptc-red-soft) 50%, var(--ptc-card)); }
.ptc-advice[data-tone="info"] { border-left-color: var(--ptc-violet); }

/* ===================== 关键数字 ===================== */
.ptc-facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px dashed var(--ptc-line);
}
.ptc-fact {
    padding: 11px 12px;
    border-radius: 12px;
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line-2);
    text-align: center;
}
.ptc-fact-k { font-size: 11.5px; color: var(--ptc-ink-3); letter-spacing: .6px; }
.ptc-fact-v {
    display: block;
    font-family: var(--ptc-mono);
    font-size: 17px;
    font-weight: 700;
    color: var(--ptc-violet);
    line-height: 1.5;
}
.ptc-fact-n { font-size: 11px; color: var(--ptc-ink-3); }

/* ===================== 讲稿统计 ===================== */
.ptc-script-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 22px;
    align-items: start;
}
.ptc-page .ptc-textarea {
    width: 100%;
    min-height: 168px;
    padding: 13px 14px;
    font-family: var(--ptc-sans);
    font-size: 14px;
    line-height: 1.95;
    color: var(--ptc-ink);
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line);
    border-radius: 12px;
    outline: none;
    resize: vertical;
    transition: border-color .16s ease, box-shadow .16s ease;
}
.ptc-page .ptc-textarea:focus {
    border-color: var(--ptc-violet);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ptc-violet) 15%, transparent);
}
.ptc-script-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.ptc-script-tip { font-size: 12px; color: var(--ptc-ink-3); margin-left: auto; }
.ptc-script-counts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.ptc-sc-count {
    padding: 10px 12px;
    border-radius: 11px;
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line-2);
}
.ptc-sc-count span { display: block; font-size: 11.5px; color: var(--ptc-ink-3); }
.ptc-sc-count b {
    display: block;
    font-family: var(--ptc-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--ptc-ink);
    line-height: 1.5;
    margin-top: 2px;
}
.ptc-sc-count.is-main {
    background: var(--ptc-violet-soft);
    border-color: color-mix(in srgb, var(--ptc-violet) 22%, transparent);
}
.ptc-sc-count.is-main b { color: var(--ptc-violet); }

/* ===================== 按钮 ===================== */
.ptc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--ptc-ink);
    background: var(--ptc-card);
    border: 1px solid var(--ptc-line);
    border-radius: 10px;
    padding: 9px 17px;
    cursor: pointer;
    transition: all .16s ease;
    white-space: nowrap;
}
.ptc-btn:hover {
    color: var(--ptc-violet);
    border-color: var(--ptc-violet);
    background: var(--ptc-violet-soft);
    transform: translateY(-1px);
}
.ptc-btn:active { transform: translateY(0); }
.ptc-btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.ptc-btn--primary {
    color: #fff;
    background: linear-gradient(135deg, var(--ptc-violet), var(--ptc-violet-2));
    border-color: transparent;
    box-shadow: 0 8px 20px color-mix(in srgb, var(--ptc-violet) 32%, transparent);
}
.ptc-btn--primary:hover {
    color: #fff;
    background: linear-gradient(135deg, var(--ptc-violet-2), var(--ptc-violet));
    border-color: transparent;
}
:root[data-theme="dark"] .ptc-btn--primary { color: #14102a; }
:root[data-theme="dark"] .ptc-btn--primary:hover { color: #14102a; }
.ptc-btn--gold {
    color: #fff;
    background: linear-gradient(135deg, #a86b12, var(--ptc-gold-2));
    border-color: transparent;
    box-shadow: 0 8px 20px rgba(184, 121, 26, .28);
}
.ptc-btn--gold:hover { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--ptc-gold-2), #a86b12); }
:root[data-theme="dark"] .ptc-btn--gold { color: #241a06; }
:root[data-theme="dark"] .ptc-btn--gold:hover { color: #241a06; }
.ptc-btn--ghost { background: transparent; }
.ptc-mini {
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    border-radius: 7px;
    border: 1px solid var(--ptc-line);
    background: var(--ptc-card);
    color: var(--ptc-ink-3);
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    transition: all .16s ease;
}
.ptc-mini:hover { color: var(--ptc-red); border-color: var(--ptc-red); background: var(--ptc-red-soft); }

.ptc-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ===================== 表格 ===================== */
.ptc-table-wrap {
    border: 1px solid var(--ptc-line);
    border-radius: 13px;
    overflow: auto;
    max-height: 440px;
    background: var(--ptc-card-2);
}
.ptc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.ptc-table th {
    position: sticky;
    top: 0;
    z-index: 2;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .4px;
    color: var(--ptc-ink-2);
    background: color-mix(in srgb, var(--ptc-violet-soft) 62%, var(--ptc-card));
    border-bottom: 1px solid var(--ptc-line);
    padding: 9px 12px;
    white-space: nowrap;
}
.ptc-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--ptc-line-2);
    color: var(--ptc-ink-2);
    vertical-align: middle;
}
.ptc-table tbody tr:last-child td { border-bottom: none; }
.ptc-table tbody tr:hover td { background: color-mix(in srgb, var(--ptc-violet-soft) 34%, transparent); }
.ptc-table .ptc-num { font-family: var(--ptc-mono); font-weight: 700; color: var(--ptc-ink); }
.ptc-table td.ptc-mono { font-family: var(--ptc-mono); color: var(--ptc-ink); }
.ptc-table tr.is-redline td {
    background: color-mix(in srgb, var(--ptc-red-soft) 76%, transparent);
    color: var(--ptc-red);
}
.ptc-table tr.is-redline td.ptc-mono { color: var(--ptc-red); font-weight: 700; }
.ptc-flag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--ptc-red);
    color: #fff;
    white-space: nowrap;
}
:root[data-theme="dark"] .ptc-flag { color: #2a0d14; }
.ptc-empty {
    text-align: center;
    color: var(--ptc-ink-3);
    font-size: 13px;
    padding: 22px 16px !important;
    line-height: 1.9;
}
.ptc-sc-name { font-weight: 700; color: var(--ptc-ink); }
.ptc-pill {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 700;
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--ptc-violet-soft);
    color: var(--ptc-violet);
    white-space: nowrap;
}
.ptc-pill[data-tone="safe"] { background: var(--ptc-green-soft); color: var(--ptc-green); }
.ptc-pill[data-tone="tight"] { background: var(--ptc-gold-soft); color: var(--ptc-gold); }
.ptc-pill[data-tone="over"],
.ptc-pill[data-tone="danger"] { background: var(--ptc-red-soft); color: var(--ptc-red); }

.ptc-redline-note {
    margin: 12px 0 0;
    padding: 10px 14px;
    border-radius: 11px;
    font-size: 13px;
    color: var(--ptc-ink-2);
    background: color-mix(in srgb, var(--ptc-gold-soft) 55%, var(--ptc-card));
    border: 1px dashed color-mix(in srgb, var(--ptc-gold) 34%, transparent);
}
.ptc-redline-note b { color: var(--ptc-gold); }

/* ===================== 语速基准 ===================== */
.ptc-bench { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.ptc-bench-row {
    text-align: left;
    font-family: inherit;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--ptc-line);
    background: var(--ptc-card-2);
    cursor: pointer;
    transition: all .16s ease;
}
.ptc-bench-row:hover {
    border-color: var(--ptc-violet);
    background: var(--ptc-violet-soft);
    transform: translateY(-2px);
}
.ptc-bench-row b {
    display: block;
    font-size: 13.5px;
    color: var(--ptc-ink);
    margin-bottom: 2px;
}
.ptc-bench-row .wpm {
    font-family: var(--ptc-mono);
    font-size: 15px;
    font-weight: 700;
    color: var(--ptc-gold);
}
.ptc-bench-row span.note { display: block; font-size: 11.5px; color: var(--ptc-ink-3); line-height: 1.65; margin-top: 3px; }

/* ===================== 代码 / 预览 ===================== */
.ptc-page .ptc-pre {
    margin: 0;
    padding: 14px 16px;
    border-radius: 12px;
    background: #17132e;
    color: #ded7ff;
    font-family: var(--ptc-mono);
    font-size: 12px;
    line-height: 1.85;
    border: 1px solid #2b2450;
    max-height: 250px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}
:root[data-theme="dark"] .ptc-page .ptc-pre { background: #0d0a1c; border-color: #241e42; }
.ptc-page .ptc-pre--ai { max-height: 380px; font-family: var(--ptc-sans); font-size: 13.5px; line-height: 1.95; }
.ptc-csv-details { margin-top: 16px; }
.ptc-csv-details summary {
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: var(--ptc-violet);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 7px;
    user-select: none;
}
.ptc-csv-details summary::-webkit-details-marker { display: none; }
.ptc-csv-details summary::before {
    content: "+";
    width: 18px;
    height: 18px;
    display: grid;
    place-items: center;
    border-radius: 6px;
    background: var(--ptc-violet-soft);
    color: var(--ptc-violet);
    font-family: var(--ptc-mono);
    font-size: 13px;
}
.ptc-csv-details[open] summary::before { content: "−"; }
.ptc-csv-details .ptc-pre { margin-top: 10px; }

/* ===================== 说明块 ===================== */
.ptc-notes {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}
.ptc-note {
    padding: 13px 15px;
    border-radius: 12px;
    background: var(--ptc-card-2);
    border: 1px solid var(--ptc-line-2);
}
.ptc-note b { display: block; font-size: 13px; color: var(--ptc-ink); margin-bottom: 4px; }
.ptc-note p { margin: 0; font-size: 12.5px; color: var(--ptc-ink-2); line-height: 1.8; }

/* ===================== FAQ ===================== */
.ptc-faq { display: grid; gap: 9px; }
.ptc-faq-item {
    border: 1px solid var(--ptc-line);
    border-radius: 12px;
    background: var(--ptc-card-2);
    padding: 0 16px;
    transition: border-color .16s ease;
}
.ptc-faq-item[open] { border-color: color-mix(in srgb, var(--ptc-violet) 34%, var(--ptc-line)); }
.ptc-faq-item summary {
    cursor: pointer;
    list-style: none;
    padding: 13px 0;
    font-size: 14px;
    font-weight: 700;
    color: var(--ptc-ink);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.ptc-faq-item summary::-webkit-details-marker { display: none; }
.ptc-faq-item summary::after {
    content: "＋";
    font-family: var(--ptc-mono);
    color: var(--ptc-violet);
    font-size: 15px;
    flex-shrink: 0;
}
.ptc-faq-item[open] summary::after { content: "－"; }
.ptc-faq-a {
    padding: 0 0 14px;
    font-size: 13.5px;
    line-height: 1.95;
    color: var(--ptc-ink-2);
}
.ptc-faq-a b { color: var(--ptc-violet); }

/* ===================== 留言 ===================== */
.ptc-comments { margin-top: 20px; }

/* ===================== Toast ===================== */
.ptc-toast {
    position: fixed;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%) translateY(12px);
    background: rgba(27, 23, 51, .96);
    color: #f3efff;
    font-size: 13.5px;
    font-weight: 600;
    padding: 11px 22px;
    border-radius: 999px;
    box-shadow: 0 12px 32px rgba(20, 12, 50, .34);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s ease, transform .22s ease;
    z-index: 9999;
    max-width: 86vw;
    text-align: center;
}
.ptc-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===================== A4 彩排单 ===================== */
.ptc-sheet { display: none; }

@media print {
    body * { visibility: hidden !important; }
    .ptc-sheet,
    .ptc-sheet * { visibility: visible !important; }
    .ptc-sheet {
        display: block !important;
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        padding: 0;
        color: #111;
        background: #fff;
        font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    @page { size: A4; margin: 14mm; }
    .ptc-sheet h2 { font-size: 16pt; margin: 0 0 4pt; }
    .ptc-sheet h3 { font-size: 12pt; margin: 12pt 0 6pt; }
    .ptc-sheet-sub { font-size: 9pt; color: #555; margin: 0 0 10pt; }
    .ptc-sheet-table { width: 100%; border-collapse: collapse; font-size: 9.5pt; margin-bottom: 6pt; }
    .ptc-sheet-table th,
    .ptc-sheet-table td { border: 1px solid #bbb; padding: 5pt 7pt; text-align: left; }
    .ptc-sheet-table th { background: #f0edf9; }
    .ptc-sheet-timeline { font-size: 8.6pt; }
    .ptc-sheet-foot { font-size: 8.6pt; color: #555; margin-top: 8pt; }
}

/* ===================== 响应式 ===================== */
@media (max-width: 1120px) {
    .ptc-hero { grid-template-columns: 1fr; }
    .ptc-clock { max-width: 420px; }
    .ptc-cols { grid-template-columns: 1fr; }
    .ptc-script-grid { grid-template-columns: 1fr; }
    .ptc-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ptc-bench { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ptc-notes { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .ptc-page { padding: 20px 15px 26px; border-radius: 16px; font-size: 14px; }
    .ptc-page h1 { font-size: 23px; letter-spacing: 0; }
    .ptc-page h2 { font-size: 18px; }
    .ptc-lead { font-size: 14px; }
    .ptc-panel { padding: 17px 15px 19px; border-radius: 15px; }
    .ptc-form-grid { grid-template-columns: 1fr; }
    .ptc-field.is-wide { grid-column: span 1; }
    .ptc-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ptc-bench { grid-template-columns: 1fr; }
    .ptc-script-counts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ptc-hero-actions .ptc-btn { flex: 1 1 auto; }
    .ptc-script-tip { margin-left: 0; }
    .ptc-clock { padding: 15px 16px 13px; }
    .ptc-dial { width: 158px; height: 158px; }
    .ptc-dial-total { font-size: 26px; }
}