/* ==========================================================================
   期末加权总评成绩计算器 /tool/course-weighted-grade-calc
   视觉主题：学院靛紫 + 琥珀金 —— 分数刻度尺 + 成绩单纸感
   深浅双主题；深色模式跟随导航栏 #themeToggle，页面内不另设切换开关
   ========================================================================== */

.cwg-page {
    /* ---- 浅色（默认） ---- */
    --cwg-bg: #f3f0fa;
    --cwg-bg-2: #eae4f7;
    --cwg-card: #ffffff;
    --cwg-card-2: #f7f4fd;
    --cwg-ink: #241a45;
    --cwg-ink-2: #564878;
    --cwg-ink-3: #8b7fae;
    --cwg-line: #ded4f0;
    --cwg-line-2: #ece6f8;
    --cwg-violet: #5b3fb3;
    --cwg-violet-2: #7a5cd6;
    --cwg-violet-soft: #ece5fb;
    --cwg-gold: #b3770c;
    --cwg-gold-2: #e8a33d;
    --cwg-gold-soft: #fdf1dc;
    --cwg-green: #1c7a54;
    --cwg-green-soft: #e2f4ec;
    --cwg-red: #bf3b2e;
    --cwg-red-soft: #fdeae7;
    --cwg-shadow: 0 18px 40px rgba(45, 30, 92, .12);
    --cwg-shadow-sm: 0 6px 18px rgba(45, 30, 92, .08);
    --cwg-radius: 20px;
    --cwg-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

:root[data-theme="dark"] .cwg-page {
    /* ---- 深色 ---- */
    --cwg-bg: #0d0a1a;
    --cwg-bg-2: #120e24;
    --cwg-card: #171129;
    --cwg-card-2: #1e1638;
    --cwg-ink: #ece8f8;
    --cwg-ink-2: #b6abd6;
    --cwg-ink-3: #8579a8;
    --cwg-line: #2e2450;
    --cwg-line-2: #251d43;
    --cwg-violet: #a58bfa;
    --cwg-violet-2: #bda6ff;
    --cwg-violet-soft: #201844;
    --cwg-gold: #f0b64a;
    --cwg-gold-2: #ffd27f;
    --cwg-gold-soft: #2e2312;
    --cwg-green: #5ec494;
    --cwg-green-soft: #12301f;
    --cwg-red: #ef8d80;
    --cwg-red-soft: #341c19;
    --cwg-shadow: 0 18px 46px rgba(0, 0, 0, .55);
    --cwg-shadow-sm: 0 6px 18px rgba(0, 0, 0, .42);
}

.cwg-page {
    color: var(--cwg-ink);
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.78;
    font-variant-numeric: tabular-nums;
    padding: 28px 28px 32px;
    margin-top: 22px;
    background:
        radial-gradient(rgba(91, 63, 179, .07) 1px, transparent 1.7px),
        linear-gradient(180deg, var(--cwg-bg-2), var(--cwg-bg));
    background-size: 16px 16px, auto;
    border: 1px solid var(--cwg-line);
    border-radius: var(--cwg-radius);
    box-shadow: var(--cwg-shadow);
}

.cwg-page * { box-sizing: border-box; }

.cwg-page h1,
.cwg-page h2,
.cwg-page h3 { margin: 0; line-height: 1.38; letter-spacing: .3px; }
.cwg-page h1 { font-size: 32px; font-weight: 800; color: var(--cwg-violet); }
.cwg-page h2 { font-size: 20px; font-weight: 800; color: var(--cwg-ink); }
.cwg-page h3 { font-size: 15px; font-weight: 700; color: var(--cwg-ink); }

/* ===================== 首屏 ===================== */
.cwg-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 404px;
    gap: 28px;
    align-items: start;
    margin-bottom: 20px;
}

.cwg-kicker {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--cwg-gold);
    background: var(--cwg-gold-soft);
    border: 1px solid var(--cwg-line);
    border-radius: 999px;
    padding: 3px 13px;
    margin-bottom: 12px;
}

.cwg-lead {
    margin: 10px 0 15px;
    font-size: 15.5px;
    color: var(--cwg-ink-2);
    max-width: 56ch;
    line-height: 1.9;
}
.cwg-lead b { color: var(--cwg-violet); font-weight: 700; }

.cwg-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 7px; }
.cwg-tags li {
    font-size: 12.5px;
    color: var(--cwg-ink-2);
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 999px;
    padding: 4px 12px;
}
.cwg-tags li::before { content: "· "; color: var(--cwg-gold-2); font-weight: 700; }

/* 三步用法 */
.cwg-steps {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.cwg-steps li {
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 12px;
    padding: 12px 14px;
    position: relative;
}
.cwg-steps b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 6px;
    background: var(--cwg-violet);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    margin-bottom: 6px;
}
.cwg-steps span { display: block; font-size: 13.5px; font-weight: 700; color: var(--cwg-ink); }
.cwg-steps i { display: block; font-style: normal; font-size: 11.5px; color: var(--cwg-ink-3); line-height: 1.6; margin-top: 2px; }

/* ===================== 速算卡 ===================== */
.cwg-meter {
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 18px;
    padding: 18px 20px 16px;
    box-shadow: var(--cwg-shadow-sm);
    position: relative;
    overflow: hidden;
}
.cwg-meter::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--cwg-violet), var(--cwg-gold-2));
}

.cwg-meter-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--cwg-line);
}
.cwg-meter-head b { font-size: 15px; color: var(--cwg-violet); }
.cwg-meter-head span { font-size: 12px; color: var(--cwg-ink-3); }

.cwg-score {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    margin: 12px 0 4px;
}
.cwg-score-val {
    font-family: var(--cwg-mono);
    font-size: 46px;
    font-weight: 800;
    line-height: 1;
    color: var(--cwg-violet);
    letter-spacing: -1px;
}
.cwg-score-val.is-fail { color: var(--cwg-red); }
.cwg-score-val.is-pass { color: var(--cwg-green); }
.cwg-score-unit { font-size: 13px; color: var(--cwg-ink-3); padding-bottom: 6px; }
.cwg-badge {
    margin-left: auto;
    font-size: 13px;
    font-weight: 800;
    color: #fff;
    background: var(--cwg-violet);
    border-radius: 999px;
    padding: 4px 14px;
    white-space: nowrap;
}
.cwg-badge.is-fail { background: var(--cwg-red); }
.cwg-badge.is-pass { background: var(--cwg-green); }
:root[data-theme="dark"] .cwg-badge.is-fail { color: #2b0d08; }
:root[data-theme="dark"] .cwg-badge.is-pass { color: #05251a; }
:root[data-theme="dark"] .cwg-badge { color: #1b1130; }

/* 分数刻度尺 */
.cwg-scale { margin: 14px 0 6px; }
.cwg-scale-track {
    position: relative;
    height: 26px;
    border-radius: 6px;
    background:
        repeating-linear-gradient(90deg, var(--cwg-line) 0 1px, transparent 1px 10%),
        linear-gradient(90deg, var(--cwg-violet-soft), var(--cwg-gold-soft));
    border: 1px solid var(--cwg-line);
    overflow: visible;
}
.cwg-scale-mark {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 0;
    border-left: 2px dashed var(--cwg-red);
    opacity: .75;
}
.cwg-scale-mark span {
    position: absolute;
    top: -3px;
    left: 3px;
    font-size: 10px;
    color: var(--cwg-red);
    white-space: nowrap;
}
.cwg-scale-needle {
    position: absolute;
    top: -6px;
    bottom: -6px;
    width: 3px;
    border-radius: 2px;
    background: var(--cwg-gold-2);
    box-shadow: 0 0 0 3px var(--cwg-gold-soft);
    transform: translateX(-1.5px);
    transition: left .3s ease;
}
.cwg-scale-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--cwg-ink-3);
    margin-top: 6px;
    font-family: var(--cwg-mono);
}

/* 速算卡内的三项输入 */
.cwg-quick { margin-top: 14px; border-top: 1px dashed var(--cwg-line); padding-top: 12px; }
.cwg-quick-row {
    display: grid;
    grid-template-columns: 62px 1fr 88px;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.cwg-quick-row > span { font-size: 13px; font-weight: 600; color: var(--cwg-ink-2); }
.cwg-quick-row .cwg-input { padding: 6px 9px; font-size: 13.5px; }
.cwg-quick-row .cwg-weight { display: flex; align-items: center; gap: 4px; }
.cwg-quick-row .cwg-weight input { width: 62px; text-align: right; }
.cwg-quick-row .cwg-weight em { font-style: normal; font-size: 12px; color: var(--cwg-ink-3); }
.cwg-quick-sum {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--cwg-ink-3);
    padding-top: 6px;
    border-top: 1px dotted var(--cwg-line);
}
.cwg-quick-sum b { font-family: var(--cwg-mono); color: var(--cwg-ink-2); }

/* 速算卡底部指标行 */
.cwg-meter-rows { border-top: 1px dashed var(--cwg-line); margin-top: 12px; padding-top: 8px; }
.cwg-meter-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    padding: 4px 0;
    font-size: 13px;
}
.cwg-meter-row .k { color: var(--cwg-ink-2); }
.cwg-meter-row .v { font-family: var(--cwg-mono); font-weight: 700; color: var(--cwg-ink); white-space: nowrap; }

.cwg-meter-actions { display: flex; gap: 8px; margin-top: 12px; }
.cwg-meter-actions .cwg-btn { flex: 1; padding: 8px 10px; font-size: 13px; text-align: center; }

/* ===================== 预置示例 ===================== */
.cwg-presets {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.cwg-presets-label { font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--cwg-ink-3); }
.cwg-presets button {
    font: inherit;
    font-size: 13px;
    color: var(--cwg-violet);
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 999px;
    padding: 5px 14px;
    cursor: pointer;
    transition: all .15s ease;
}
.cwg-presets button:hover { border-color: var(--cwg-violet); background: var(--cwg-violet-soft); }

/* ===================== 校验条 ===================== */
.cwg-errbar {
    border-radius: 12px;
    border: 1px solid var(--cwg-red);
    background: var(--cwg-red-soft);
    color: var(--cwg-red);
    font-size: 13px;
    line-height: 1.75;
    padding: 10px 14px;
    margin-bottom: 16px;
}
.cwg-errbar.is-warn { border-color: var(--cwg-gold-2); background: var(--cwg-gold-soft); color: var(--cwg-gold); }
.cwg-errbar.is-ok { border-color: var(--cwg-green); background: var(--cwg-green-soft); color: var(--cwg-green); }
.cwg-errbar ul { margin: 0; padding-left: 18px; }
.cwg-errbar b { font-weight: 800; }

/* ===================== 面板 ===================== */
.cwg-panel {
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 16px;
    padding: 22px 24px;
    margin-bottom: 18px;
    box-shadow: var(--cwg-shadow-sm);
}
.cwg-panel-head { margin-bottom: 16px; }
.cwg-pk {
    display: inline-block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--cwg-violet);
    background: var(--cwg-violet-soft);
    border: 1px solid var(--cwg-line);
    border-radius: 6px;
    padding: 1px 9px;
    margin-bottom: 8px;
}
.cwg-panel-head h2 { margin-bottom: 4px; }
.cwg-panel-head p { margin: 0; font-size: 13px; color: var(--cwg-ink-2); }

.cwg-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.cwg-col { min-width: 0; }

.cwg-sub {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin: 0 0 10px;
}
.cwg-sub + .cwg-sub { margin-top: 20px; }
.cwg-sub i {
    font-style: normal;
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--cwg-violet);
    color: #fff;
    font-size: 12px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
}
.cwg-sub-note { font-size: 12px; font-weight: 400; color: var(--cwg-ink-3); }

.cwg-mini-btn {
    margin-left: auto;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    color: var(--cwg-violet);
    background: var(--cwg-violet-soft);
    border: 1px dashed var(--cwg-violet);
    border-radius: 999px;
    padding: 3px 12px;
    cursor: pointer;
    transition: all .15s ease;
}
.cwg-mini-btn:hover { background: var(--cwg-violet); color: #fff; }

.cwg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cwg-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cwg-field { display: flex; flex-direction: column; gap: 5px; }
.cwg-label { font-size: 13px; font-weight: 600; color: var(--cwg-ink-2); }
.cwg-unit { font-size: 11px; font-weight: 400; color: var(--cwg-ink-3); }
.cwg-input {
    font: inherit;
    font-size: 14px;
    color: var(--cwg-ink);
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line);
    border-radius: 10px;
    padding: 8px 12px;
    width: 100%;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.cwg-input:focus { border-color: var(--cwg-violet); box-shadow: 0 0 0 3px var(--cwg-violet-soft); }
.cwg-mono { font-family: var(--cwg-mono); }
.cwg-select {
    font: inherit;
    font-size: 14px;
    color: var(--cwg-ink);
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line);
    border-radius: 10px;
    padding: 8px 12px;
    width: 100%;
    outline: none;
}
.cwg-input.is-ro { background: transparent; color: var(--cwg-ink-3); }

/* 开关 */
.cwg-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--cwg-ink-2);
    cursor: pointer;
    user-select: none;
}
.cwg-switch input { width: 16px; height: 16px; accent-color: var(--cwg-violet); cursor: pointer; }

/* 分项行 */
.cwg-part {
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
}
.cwg-part-top { display: flex; gap: 8px; align-items: center; margin-bottom: 9px; }
.cwg-part-name {
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    color: var(--cwg-ink);
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--cwg-line);
    flex: 1;
    min-width: 0;
    padding: 2px 0;
    outline: none;
}
.cwg-part-name:focus { border-bottom-color: var(--cwg-violet); }
.cwg-part-del {
    flex: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--cwg-red-soft);
    color: var(--cwg-red);
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
    cursor: pointer;
}
.cwg-part-del:hover { background: var(--cwg-red); color: #fff; }
.cwg-part-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.cwg-part-grid .cwg-input { font-size: 13px; padding: 6px 9px; }
.cwg-part-note { margin-top: 8px; font-size: 12px; color: var(--cwg-ink-3); }
.cwg-part-note b { color: var(--cwg-violet); font-family: var(--cwg-mono); }

/* 反推卡 */
.cwg-need {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.cwg-need-card {
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 14px;
    padding: 14px 16px;
    border-top: 3px solid var(--cwg-violet);
}
.cwg-need-card.is-gold { border-top-color: var(--cwg-gold-2); }
.cwg-need-card.is-red { border-top-color: var(--cwg-red); }
.cwg-need-label { font-size: 12.5px; color: var(--cwg-ink-3); }
.cwg-need-val {
    font-family: var(--cwg-mono);
    font-size: 26px;
    font-weight: 800;
    color: var(--cwg-violet);
    line-height: 1.3;
}
.cwg-need-card.is-gold .cwg-need-val { color: var(--cwg-gold); }
.cwg-need-card.is-red .cwg-need-val { color: var(--cwg-red); }
.cwg-need-desc { font-size: 12px; color: var(--cwg-ink-3); line-height: 1.7; }

/* 事实清单 */
.cwg-facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(255px, 1fr)); gap: 12px; }
.cwg-fact {
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--cwg-ink-2);
}
.cwg-fact b { color: var(--cwg-violet); font-family: var(--cwg-mono); }
.cwg-fact.is-tip { border-left: 3px solid var(--cwg-gold-2); }
.cwg-fact.is-tip b { color: var(--cwg-gold); }
.cwg-fact.is-save { border-left: 3px solid var(--cwg-green); }
.cwg-fact.is-save b { color: var(--cwg-green); }

/* ===================== 按钮 ===================== */
.cwg-btn {
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    color: var(--cwg-ink);
    background: var(--cwg-card);
    border: 1px solid var(--cwg-line);
    border-radius: 10px;
    padding: 9px 18px;
    cursor: pointer;
    transition: all .15s ease;
}
.cwg-btn:hover { border-color: var(--cwg-violet); color: var(--cwg-violet); }
.cwg-btn--primary { background: var(--cwg-violet); border-color: var(--cwg-violet); color: #fff; }
.cwg-btn--primary:hover { background: var(--cwg-violet-2); border-color: var(--cwg-violet-2); color: #fff; }
.cwg-btn--gold { background: var(--cwg-gold-2); border-color: var(--cwg-gold-2); color: #4a3200; }
.cwg-btn--gold:hover { filter: brightness(1.05); color: #4a3200; }
.cwg-btn--ghost { background: transparent; }
.cwg-btn:disabled { opacity: .55; cursor: not-allowed; }
.cwg-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ===================== 表格 ===================== */
.cwg-table-wrap { overflow-x: auto; border: 1px solid var(--cwg-line); border-radius: 12px; }
.cwg-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 760px; }
.cwg-table th, .cwg-table td { padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--cwg-line-2); }
.cwg-table th {
    font-size: 12px;
    color: var(--cwg-ink-3);
    background: var(--cwg-card-2);
    white-space: nowrap;
}
.cwg-table td { color: var(--cwg-ink); }
.cwg-table .cwg-mono, .cwg-table td.cwg-mono { font-family: var(--cwg-mono); }
.cwg-table tbody tr:last-child td { border-bottom: none; }
.cwg-table tbody tr:hover { background: var(--cwg-card-2); }
.cwg-op { white-space: nowrap; }
.cwg-del {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: none;
    background: var(--cwg-red-soft);
    color: var(--cwg-red);
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
}
.cwg-del:hover { background: var(--cwg-red); color: #fff; }
.cwg-table .empty-row td { text-align: center; color: var(--cwg-ink-3); padding: 18px 0; }
.cwg-cell-input {
    font: inherit;
    font-size: 12.5px;
    font-family: var(--cwg-mono);
    color: var(--cwg-ink);
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 7px;
    padding: 5px 7px;
    width: 100%;
    min-width: 54px;
    outline: none;
}
.cwg-cell-input:focus { border-color: var(--cwg-violet); }
.cwg-cell-name {
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--cwg-ink);
    background: transparent;
    border: none;
    border-bottom: 1px dashed var(--cwg-line);
    width: 100%;
    min-width: 90px;
    padding: 2px 0;
    outline: none;
}
.cwg-cell-name:focus { border-bottom-color: var(--cwg-violet); }
.cwg-tag {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 800;
    border-radius: 999px;
    padding: 1px 9px;
    background: var(--cwg-violet-soft);
    color: var(--cwg-violet);
    white-space: nowrap;
}
.cwg-tag.is-pass { background: var(--cwg-green-soft); color: var(--cwg-green); }
.cwg-tag.is-fail { background: var(--cwg-red-soft); color: var(--cwg-red); }
.cwg-tag.is-gold { background: var(--cwg-gold-soft); color: var(--cwg-gold); }

/* ===================== 预格式文本 ===================== */
.cwg-pre {
    margin: 0;
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 12px;
    padding: 14px 16px;
    font-family: var(--cwg-mono);
    font-size: 12.5px;
    line-height: 1.8;
    color: var(--cwg-ink-2);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 380px;
    overflow: auto;
}

/* ===================== FAQ ===================== */
.cwg-faq { display: flex; flex-direction: column; gap: 10px; }
.cwg-faq-item {
    background: var(--cwg-card-2);
    border: 1px solid var(--cwg-line-2);
    border-radius: 12px;
    overflow: hidden;
}
.cwg-faq-item summary {
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    color: var(--cwg-ink);
    padding: 12px 40px 12px 16px;
    list-style: none;
    position: relative;
}
.cwg-faq-item summary::-webkit-details-marker { display: none; }
.cwg-faq-item summary::after {
    content: "+";
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cwg-violet);
    font-size: 18px;
    font-weight: 800;
}
.cwg-faq-item[open] summary::after { content: "−"; }
.cwg-faq-a {
    padding: 0 16px 14px;
    font-size: 13px;
    line-height: 1.95;
    color: var(--cwg-ink-2);
}
.cwg-faq-a b { color: var(--cwg-violet); }

/* ===================== 留言板 ===================== */
.cwg-comments { margin-bottom: 20px; }

/* ===================== A4 成绩单（仅打印可见） ===================== */
.cwg-sheet { display: none; }

/* ===================== Toast ===================== */
.cwg-toast {
    position: fixed;
    left: 50%;
    bottom: 32px;
    transform: translateX(-50%) translateY(16px);
    background: rgba(36, 26, 69, .95);
    color: #fff;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: all .3s ease;
    z-index: 9999;
    max-width: 86vw;
    text-align: center;
}
.cwg-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===================== 响应式 ===================== */
@media (max-width: 980px) {
    .cwg-page { padding: 20px 16px 24px; }
    .cwg-hero { grid-template-columns: 1fr; }
    .cwg-cols { grid-template-columns: 1fr; }
    .cwg-need { grid-template-columns: 1fr; }
    .cwg-page h1 { font-size: 26px; }
}
@media (max-width: 560px) {
    .cwg-grid, .cwg-grid-3 { grid-template-columns: 1fr; }
    .cwg-part-grid { grid-template-columns: 1fr 1fr; }
    .cwg-score-val { font-size: 38px; }
}

/* ===================== 打印样式：A4 成绩单 ===================== */
@media print {
    body > *:not(.detail-wrap) { display: none !important; }
    .detail-wrap .container > *:not(.cwg-sheet) { display: none !important; }
    .cwg-sheet {
        display: block !important;
        color: #000;
        font-size: 12px;
        line-height: 1.8;
    }
    .cwg-sheet h1 { font-size: 20px; color: #000; margin: 0 0 4px; }
    .cwg-sheet .cwg-sheet-meta { font-size: 11px; color: #444; margin-bottom: 14px; }
    .cwg-sheet table { width: 100%; border-collapse: collapse; margin-bottom: 14px; }
    .cwg-sheet th, .cwg-sheet td { border: 1px solid #999; padding: 5px 8px; text-align: left; }
    .cwg-sheet th { background: #eee; }
    .cwg-sheet .cwg-sheet-sign { margin-top: 26px; display: flex; gap: 60px; color: #333; }
    .cwg-toast, .cwg-comments, .cwg-errbar { display: none !important; }
}