/* ==========================================================================
   刷题正确率与提分进度计算器 · 「错题本批改台」视觉
   宣纸米白 + 墨蓝钢笔 + 朱砂批改 + 荧光柠檬高亮
   ========================================================================== */

.dsp-page {
    --dsp-paper: #f7f2e6;
    --dsp-card: #fffdf6;
    --dsp-card-2: #fbf6ea;
    --dsp-ink: #1d2b45;
    --dsp-ink-2: #55648a;
    --dsp-ink-3: #8b95ab;
    --dsp-red: #c0392b;
    --dsp-red-soft: rgba(192, 57, 43, .1);
    --dsp-green: #2f7d55;
    --dsp-green-soft: rgba(47, 125, 85, .12);
    --dsp-blue: #27548a;
    --dsp-blue-soft: rgba(39, 84, 138, .1);
    --dsp-lemon: #f4c542;
    --dsp-lemon-soft: rgba(244, 197, 66, .28);
    --dsp-line: #e2d8c2;
    --dsp-line-2: #efe7d5;
    --dsp-shadow: 0 12px 34px rgba(70, 55, 25, .09);
    --dsp-shadow-sm: 0 4px 14px rgba(70, 55, 25, .07);
    --dsp-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
    --dsp-serif: Georgia, "Songti SC", "SimSun", "Noto Serif SC", serif;
    --dsp-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Courier New", monospace;

    color: var(--dsp-ink);
    font-family: var(--dsp-sans);
    line-height: 1.75;
    font-size: 15px;
}

:root[data-theme="dark"] .dsp-page {
    --dsp-paper: #171a21;
    --dsp-card: #1e222b;
    --dsp-card-2: #232833;
    --dsp-ink: #ece5d6;
    --dsp-ink-2: #a9b0c2;
    --dsp-ink-3: #7c8496;
    --dsp-red: #e2705c;
    --dsp-red-soft: rgba(226, 112, 92, .14);
    --dsp-green: #5cc38d;
    --dsp-green-soft: rgba(92, 195, 141, .14);
    --dsp-blue: #7fb2e8;
    --dsp-blue-soft: rgba(127, 178, 232, .14);
    --dsp-lemon: #f0cf62;
    --dsp-lemon-soft: rgba(240, 207, 98, .2);
    --dsp-line: #333a49;
    --dsp-line-2: #2a303d;
    --dsp-shadow: 0 14px 36px rgba(0, 0, 0, .4);
    --dsp-shadow-sm: 0 4px 16px rgba(0, 0, 0, .3);
}

/* ---------------- Hero：作业纸 + 批改章 ---------------- */
.dsp-hero {
    position: relative;
    background:
        repeating-linear-gradient(to bottom, transparent 0 33px, var(--dsp-line-2) 33px 34px),
        linear-gradient(135deg, var(--dsp-card) 0%, var(--dsp-paper) 100%);
    border: 1px solid var(--dsp-line);
    border-radius: 22px;
    padding: 40px 42px 34px;
    box-shadow: var(--dsp-shadow);
    margin-bottom: 26px;
    overflow: hidden;
}
.dsp-hero::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 6px;
    background: linear-gradient(180deg, var(--dsp-red), var(--dsp-lemon));
}
.dsp-hero::after {
    content: "";
    position: absolute;
    right: -60px; top: -70px;
    width: 220px; height: 220px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--dsp-lemon-soft) 0%, transparent 68%);
    pointer-events: none;
}
.dsp-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 28px;
    align-items: center;
}
.dsp-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--dsp-mono);
    font-size: 12px;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--dsp-red);
    background: var(--dsp-red-soft);
    border: 1px dashed var(--dsp-red);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 16px;
}
.dsp-hero h1 {
    font-family: var(--dsp-serif);
    font-style: normal;
    font-size: 36px;
    font-weight: 700;
    line-height: 1.28;
    letter-spacing: -.01em;
    margin: 0 0 14px;
    color: var(--dsp-ink);
}
.dsp-lead {
    font-size: 15.5px;
    color: var(--dsp-ink-2);
    max-width: 760px;
    margin: 0 0 20px;
    line-height: 1.9;
}
.dsp-lead b { color: var(--dsp-ink); font-weight: 700; }
.dsp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    margin: 0 0 24px;
    padding: 0;
}
.dsp-tags li {
    font-size: 12.5px;
    color: var(--dsp-ink-2);
    background: var(--dsp-card);
    border: 1px solid var(--dsp-line);
    border-radius: 8px;
    padding: 5px 11px;
}
.dsp-tags li::before { content: "✎ "; color: var(--dsp-red); }

.dsp-hero-cta { display: flex; flex-direction: column; gap: 10px; min-width: 216px; }
.dsp-btn {
    appearance: none;
    border: 1px solid var(--dsp-line);
    background: var(--dsp-card);
    color: var(--dsp-ink);
    font-family: var(--dsp-sans);
    font-size: 14px;
    font-weight: 600;
    padding: 11px 18px;
    border-radius: 12px;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
    text-align: center;
}
.dsp-btn:hover { transform: translateY(-2px); box-shadow: var(--dsp-shadow-sm); border-color: var(--dsp-red); }
.dsp-btn:active { transform: translateY(0); }
.dsp-btn--primary {
    background: linear-gradient(135deg, var(--dsp-red), #9c2d20);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 8px 20px rgba(192, 57, 43, .28);
}
:root[data-theme="dark"] .dsp-btn--primary { color: #23140f; }
.dsp-btn--ghost { background: transparent; }
.dsp-btn--sm { padding: 7px 13px; font-size: 13px; border-radius: 9px; }

/* ---------------- KPI 概览 ---------------- */
.dsp-kpis {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 26px;
}
.dsp-kpi {
    background: var(--dsp-card);
    border: 1px solid var(--dsp-line);
    border-radius: 16px;
    padding: 18px 18px 16px;
    box-shadow: var(--dsp-shadow-sm);
    position: relative;
    overflow: hidden;
}
.dsp-kpi::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: var(--dsp-ink-3);
}
.dsp-kpi.is-red::before { background: var(--dsp-red); }
.dsp-kpi.is-green::before { background: var(--dsp-green); }
.dsp-kpi.is-blue::before { background: var(--dsp-blue); }
.dsp-kpi.is-lemon::before { background: var(--dsp-lemon); }
.dsp-kpi-label {
    display: block;
    font-size: 12.5px;
    color: var(--dsp-ink-3);
    letter-spacing: .04em;
    margin-bottom: 8px;
}
.dsp-kpi-val {
    display: block;
    font-family: var(--dsp-mono);
    font-size: 30px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -.02em;
    color: var(--dsp-ink);
}
.dsp-kpi-val small { font-size: 14px; font-weight: 600; color: var(--dsp-ink-3); margin-left: 3px; }
.dsp-kpi-note { display: block; font-size: 12px; color: var(--dsp-ink-3); margin-top: 7px; }
.dsp-kpi.is-red .dsp-kpi-val { color: var(--dsp-red); }
.dsp-kpi.is-green .dsp-kpi-val { color: var(--dsp-green); }
.dsp-kpi.is-blue .dsp-kpi-val { color: var(--dsp-blue); }

/* ---------------- 提示条 ---------------- */
.dsp-err {
    display: none;
    background: var(--dsp-red-soft);
    border: 1px solid var(--dsp-red);
    color: var(--dsp-red);
    border-radius: 12px;
    padding: 11px 16px;
    font-size: 13.5px;
    font-weight: 600;
    margin-bottom: 20px;
}
.dsp-err.show { display: block; }

/* ---------------- 面板 ---------------- */
.dsp-panel {
    background: var(--dsp-card);
    border: 1px solid var(--dsp-line);
    border-radius: 18px;
    padding: 26px 28px 28px;
    box-shadow: var(--dsp-shadow-sm);
    margin-bottom: 20px;
}
.dsp-panel-head { margin-bottom: 20px; }
.dsp-pk {
    display: inline-block;
    font-family: var(--dsp-mono);
    font-size: 11.5px;
    letter-spacing: .18em;
    color: var(--dsp-red);
    border-bottom: 2px solid var(--dsp-lemon);
    padding-bottom: 3px;
    margin-bottom: 10px;
}
.dsp-panel-head h2 {
    font-family: var(--dsp-serif);
    font-size: 21px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.4;
    color: var(--dsp-ink);
}
.dsp-panel-head p { margin: 0; font-size: 13.5px; color: var(--dsp-ink-2); line-height: 1.85; }

/* ---------------- 表单 ---------------- */
.dsp-grid { display: grid; gap: 16px; }
.dsp-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.dsp-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dsp-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.dsp-field { display: block; min-width: 0; }
.dsp-label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--dsp-ink-2);
    margin-bottom: 7px;
}
.dsp-label em { font-style: normal; color: var(--dsp-red); margin-left: 3px; }
.dsp-label i { font-style: normal; color: var(--dsp-ink-3); font-weight: 400; margin-left: 4px; }
.dsp-input, .dsp-select, .dsp-textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--dsp-line);
    background: var(--dsp-card-2);
    color: var(--dsp-ink);
    border-radius: 11px;
    padding: 10px 13px;
    font-size: 14.5px;
    font-family: var(--dsp-sans);
    transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.dsp-textarea { min-height: 92px; resize: vertical; font-family: var(--dsp-mono); font-size: 13px; line-height: 1.7; }
.dsp-input:focus, .dsp-select:focus, .dsp-textarea:focus {
    outline: none;
    border-color: var(--dsp-red);
    background: var(--dsp-card);
    box-shadow: 0 0 0 4px var(--dsp-red-soft);
}
.dsp-input.is-bad { border-color: var(--dsp-red); }
.dsp-mono { font-family: var(--dsp-mono); font-weight: 600; }

.dsp-chips { display: flex; flex-wrap: wrap; gap: 9px; }
.dsp-chip {
    appearance: none;
    border: 1px solid var(--dsp-line);
    background: var(--dsp-card-2);
    color: var(--dsp-ink-2);
    font-family: var(--dsp-sans);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 999px;
    cursor: pointer;
    transition: all .16s ease;
}
.dsp-chip:hover { border-color: var(--dsp-red); color: var(--dsp-red); }
.dsp-chip.on {
    background: var(--dsp-red);
    border-color: var(--dsp-red);
    color: #fff;
}
:root[data-theme="dark"] .dsp-chip.on { color: #24140f; }
.dsp-chip-sub { font-size: 11.5px; font-weight: 400; opacity: .8; margin-left: 4px; }

/* ---------------- 表格 ---------------- */
.dsp-table-wrap { overflow-x: auto; border: 1px solid var(--dsp-line); border-radius: 13px; background: var(--dsp-card-2); }
.dsp-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 720px; }
.dsp-table th {
    background: var(--dsp-card);
    color: var(--dsp-ink-2);
    font-weight: 700;
    font-size: 12.5px;
    text-align: left;
    padding: 11px 12px;
    border-bottom: 2px solid var(--dsp-line);
    white-space: nowrap;
}
.dsp-table td { padding: 7px 10px; border-bottom: 1px solid var(--dsp-line-2); vertical-align: middle; }
.dsp-table tr:last-child td { border-bottom: none; }
.dsp-table tbody tr:hover { background: color-mix(in srgb, var(--dsp-lemon) 10%, transparent); }
.dsp-table .dsp-in {
    width: 100%;
    border: 1px solid transparent;
    background: transparent;
    color: var(--dsp-ink);
    border-radius: 8px;
    padding: 6px 8px;
    font-size: 13.5px;
    font-family: var(--dsp-sans);
    min-width: 72px;
}
.dsp-table .dsp-in.mono { font-family: var(--dsp-mono); font-weight: 600; }
.dsp-table .dsp-in:focus { outline: none; border-color: var(--dsp-red); background: var(--dsp-card); box-shadow: 0 0 0 3px var(--dsp-red-soft); }
.dsp-cell-out { font-family: var(--dsp-mono); font-weight: 700; color: var(--dsp-ink); white-space: nowrap; }
.dsp-cell-out.up { color: var(--dsp-green); }
.dsp-cell-out.down { color: var(--dsp-red); }
.dsp-row-del {
    border: 1px solid var(--dsp-line);
    background: var(--dsp-card);
    color: var(--dsp-ink-3);
    width: 28px; height: 28px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    transition: all .16s ease;
}
.dsp-row-del:hover { border-color: var(--dsp-red); color: var(--dsp-red); }
.dsp-bar {
    position: relative;
    height: 8px;
    border-radius: 99px;
    background: var(--dsp-line-2);
    overflow: hidden;
    min-width: 90px;
}
.dsp-bar i { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 99px; background: linear-gradient(90deg, var(--dsp-red), var(--dsp-lemon)); }
.dsp-bar.good i { background: linear-gradient(90deg, var(--dsp-green), #7fd0a4); }
.dsp-bar.mid i { background: linear-gradient(90deg, var(--dsp-blue), #86b6e8); }

.dsp-item-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 14px;
}
.dsp-item-sum { font-size: 12.5px; color: var(--dsp-ink-3); }
.dsp-item-sum b { font-family: var(--dsp-mono); color: var(--dsp-ink); font-weight: 700; }
.dsp-mini-btn {
    appearance: none;
    border: 1px dashed var(--dsp-blue);
    background: var(--dsp-blue-soft);
    color: var(--dsp-blue);
    font-family: var(--dsp-sans);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 10px;
    cursor: pointer;
    transition: all .16s ease;
}
.dsp-mini-btn:hover { background: var(--dsp-blue); color: #fff; }
:root[data-theme="dark"] .dsp-mini-btn:hover { color: #16202f; }

/* ---------------- 题型正确率 ---------------- */
.dsp-types { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.dsp-type {
    border: 1px solid var(--dsp-line);
    background: var(--dsp-card-2);
    border-radius: 14px;
    padding: 14px 15px;
}
.dsp-type-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 10px; }
.dsp-type-name { font-weight: 700; font-size: 14px; }
.dsp-type-rate { font-family: var(--dsp-mono); font-weight: 700; font-size: 19px; }
.dsp-type-rate.up { color: var(--dsp-green); }
.dsp-type-rate.mid { color: var(--dsp-blue); }
.dsp-type-rate.down { color: var(--dsp-red); }
.dsp-type-meta { font-size: 12px; color: var(--dsp-ink-3); margin-top: 8px; }
.dsp-type-meta b { font-family: var(--dsp-mono); color: var(--dsp-ink-2); }

/* ---------------- 图表 ---------------- */
.dsp-chart-box {
    border: 1px solid var(--dsp-line);
    border-radius: 14px;
    background: var(--dsp-card-2);
    padding: 14px 12px 8px;
    overflow-x: auto;
}
.dsp-chart-box svg { display: block; max-width: 100%; height: auto; }
.dsp-legend { display: flex; gap: 18px; flex-wrap: wrap; font-size: 12.5px; color: var(--dsp-ink-2); padding: 6px 6px 0; }
.dsp-legend span { display: inline-flex; align-items: center; gap: 6px; }
.dsp-legend i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }

/* ---------------- 结论卡 ---------------- */
.dsp-facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.dsp-fact {
    border: 1px solid var(--dsp-line);
    border-left: 4px solid var(--dsp-blue);
    background: var(--dsp-card-2);
    border-radius: 12px;
    padding: 15px 16px;
}
.dsp-fact.warn { border-left-color: var(--dsp-red); }
.dsp-fact.good { border-left-color: var(--dsp-green); }
.dsp-fact.hint { border-left-color: var(--dsp-lemon); }
.dsp-fact h3 { margin: 0 0 7px; font-size: 14.5px; font-weight: 700; }
.dsp-fact p { margin: 0; font-size: 13px; color: var(--dsp-ink-2); line-height: 1.85; }
.dsp-fact b { color: var(--dsp-ink); font-family: var(--dsp-mono); }

/* ---------------- AI ---------------- */
.dsp-ai {
    margin-top: 18px;
    border: 1px dashed var(--dsp-blue);
    border-radius: 16px;
    background: var(--dsp-blue-soft);
    padding: 18px 20px;
}
.dsp-ai-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.dsp-ai-title { font-size: 14.5px; font-weight: 700; color: var(--dsp-ink); }
.dsp-ai-title span { font-size: 12px; font-weight: 400; color: var(--dsp-ink-3); margin-left: 8px; }
.dsp-ai-body { margin-top: 12px; font-size: 13.5px; color: var(--dsp-ink-2); line-height: 1.9; }
.dsp-ai-body p { margin: 0 0 9px; }
.dsp-ai-loading { color: var(--dsp-blue); font-weight: 600; }

/* ---------------- FAQ ---------------- */
.dsp-faq { display: grid; gap: 10px; }
.dsp-faq details {
    border: 1px solid var(--dsp-line);
    border-radius: 12px;
    background: var(--dsp-card-2);
    overflow: hidden;
}
.dsp-faq summary {
    cursor: pointer;
    padding: 13px 16px;
    font-weight: 700;
    font-size: 14.5px;
    color: var(--dsp-ink);
    list-style: none;
    display: flex;
    align-items: center;
    gap: 9px;
}
.dsp-faq summary::-webkit-details-marker { display: none; }
.dsp-faq summary::before {
    content: "Q";
    font-family: var(--dsp-mono);
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: var(--dsp-red);
    border-radius: 5px;
    width: 20px; height: 20px;
    display: inline-flex; align-items: center; justify-content: center;
    flex: 0 0 auto;
}
.dsp-faq-a { padding: 0 16px 15px 45px; font-size: 13.5px; color: var(--dsp-ink-2); line-height: 1.95; }
.dsp-faq-a b { color: var(--dsp-ink); }

/* ---------------- CSV 预览 ---------------- */
.dsp-pre {
    background: var(--dsp-card-2);
    border: 1px solid var(--dsp-line);
    border-radius: 12px;
    padding: 14px 16px;
    font-family: var(--dsp-mono);
    font-size: 12.5px;
    line-height: 1.8;
    color: var(--dsp-ink-2);
    overflow-x: auto;
    margin: 0;
    max-height: 320px;
    white-space: pre;
}

/* ---------------- 打印稿 ---------------- */
.dsp-sheet { display: none; }
.dsp-sheet-inner {
    font-family: var(--dsp-sans);
    color: #1d2b45;
    padding: 24px;
    background: #fff;
}
.dsp-sheet h2 { font-family: var(--dsp-serif); font-size: 20px; margin: 0 0 4px; }
.dsp-sheet .dsp-sheet-sub { font-size: 12px; color: #667; margin-bottom: 16px; }
.dsp-sheet table { width: 100%; border-collapse: collapse; font-size: 12px; margin-bottom: 16px; }
.dsp-sheet th, .dsp-sheet td { border: 1px solid #d9d3c4; padding: 6px 8px; text-align: left; }
.dsp-sheet th { background: #f4efe2; }

/* ---------------- Toast ---------------- */
.dsp-toast {
    position: fixed;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%) translateY(12px);
    background: var(--dsp-ink);
    color: var(--dsp-paper);
    font-size: 13.5px;
    font-weight: 600;
    padding: 11px 22px;
    border-radius: 999px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, .25);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
    z-index: 9999;
    max-width: 88vw;
    text-align: center;
}
.dsp-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
    .dsp-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .dsp-hero-inner { grid-template-columns: 1fr; }
    .dsp-hero-cta { flex-direction: row; flex-wrap: wrap; min-width: 0; }
    .dsp-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
    .dsp-page { font-size: 14.5px; }
    .dsp-hero { padding: 28px 20px 24px; border-radius: 16px; }
    .dsp-hero h1 { font-size: 26px; }
    .dsp-lead { font-size: 14.5px; }
    .dsp-panel { padding: 20px 16px 22px; border-radius: 14px; }
    .dsp-panel-head h2 { font-size: 18.5px; }
    .dsp-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .dsp-kpi { padding: 14px 13px; }
    .dsp-kpi-val { font-size: 23px; }
    .dsp-grid-2, .dsp-grid-3, .dsp-grid-4 { grid-template-columns: minmax(0, 1fr); }
    .dsp-faq-a { padding-left: 16px; }
    .dsp-hero-cta .dsp-btn { flex: 1 1 46%; }
}

/* ---------------- 打印 ---------------- */
@media print {
    body { background: #fff !important; }
    .nav-header, .footer, .back-to-top, #clicaptcha-container, .detail-breadcrumb,
    #navEvadeBtn, .nav-evade-btn, #evadeFab, .evade-fab,
    #navMask, .nav-mask, .ma-page-modal,
    .dsp-page, .dsp-toast { display: none !important; }
    .dsp-sheet { display: block !important; }
    .dsp-sheet-inner { padding: 0; }
    @page { margin: 12mm; }
}