/*
 * 知序学生端 · 通用知识点展示模板
 * 共享参考页的蓝白视觉体系；所有可见辅助文字不小于 14px。
 */

body[data-page="display"].knowledge-template-page .header h1::after {
    content: attr(data-subtitle) !important;
}

body[data-page="display"].knowledge-template-page .knowledge-page-shell {
    width: 100%;
}

body[data-page="display"].knowledge-template-page .knowledge-hero,
body[data-page="display"].knowledge-template-page .knowledge-board {
    scroll-margin-top: 96px;
}

body[data-page="display"].knowledge-template-page a:focus-visible,
body[data-page="display"].knowledge-template-page button:focus-visible,
body[data-page="display"].knowledge-template-page input:focus-visible {
    outline: 3px solid rgba(75, 159, 227, .38);
    outline-offset: 3px;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--letter span {
    color: #fff;
    font-size: 76px;
    letter-spacing: -.04em;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--letter small {
    color: #9bd0f7;
    font-size: 48px;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--pinyin span {
    color: #fff;
    font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
    font-size: 76px;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--pinyin small {
    color: #a9d7fa;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 26px;
    letter-spacing: .1em;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--char span {
    color: #fff;
    font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
    font-size: 78px;
    letter-spacing: .05em;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--char small {
    color: #a9d7fa;
    font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
    font-size: 34px;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--generic span {
    color: #fff;
    font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
    font-size: 74px;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--detail {
    min-width: 0;
}

body[data-page="display"].knowledge-template-page .knowledge-hero-mark--detail span {
    display: block;
    max-width: 100%;
    overflow: hidden;
    color: #fff;
    font-family: "Noto Serif SC", "Songti SC", Georgia, serif;
    font-size: clamp(38px, 4.6vw, 62px);
    line-height: 1.18;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body[data-page="display"].knowledge-template-page .knowledge-content {
    min-width: 0;
}

/* 英文字母：保留大小写成对学习，但采用统一信息层级。 */
body[data-page="display"].knowledge-template-page .letter-pair-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 18px;
}

body[data-page="display"].knowledge-template-page .letter-pair-grid > .letter-pair-card:nth-last-child(2):nth-child(6n + 1) {
    grid-column-start: auto;
}

body[data-page="display"].knowledge-template-page .letter-pair-card {
    position: relative;
    min-width: 0;
    overflow: hidden;
    border: 1px solid #d9e5f0;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 5px 18px rgba(24, 65, 105, .055);
    transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

body[data-page="display"].knowledge-template-page .letter-pair-card::before {
    content: "";
    position: absolute;
    z-index: 1;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background: var(--pair-state-color, #aebdcb);
}

body[data-page="display"].knowledge-template-page .letter-pair-card:hover {
    border-color: color-mix(in srgb, var(--pair-state-color) 54%, #d9e5f0);
    box-shadow: 0 15px 32px rgba(22, 72, 120, .13);
    transform: translateY(-3px);
}

body[data-page="display"].knowledge-template-page .letter-pair-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 19px 18px 10px;
}

body[data-page="display"].knowledge-template-page .letter-pair-number {
    color: #647b91;
    font-size: 14px;
    font-weight: 750;
    letter-spacing: .08em;
}

body[data-page="display"].knowledge-template-page .letter-pair-state {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #657b91;
    font-size: 14px;
    font-weight: 650;
}

body[data-page="display"].knowledge-template-page .letter-pair-state::before {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--pair-state-color, #aebdcb);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--pair-state-color) 13%, transparent);
}

body[data-page="display"].knowledge-template-page .letter-pair-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 4px 13px 14px;
}

body[data-page="display"].knowledge-template-page .letter-pair-item {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 5px;
}

body[data-page="display"].knowledge-template-page .letter-pair-link {
    position: relative;
    display: flex;
    min-width: 0;
    min-height: 154px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid #e0eaf3;
    border-radius: 13px;
    color: #153755;
    background: linear-gradient(155deg, #fbfdff, color-mix(in srgb, var(--letter-accent) 8%, #f2f8fd));
    text-decoration: none;
    transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
}

body[data-page="display"].knowledge-template-page .letter-pair-link::after {
    right: 14px;
    bottom: 10px;
    left: 14px;
    height: 5px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--letter-accent) var(--letter-progress), #dfe8f0 var(--letter-progress));
}

body[data-page="display"].knowledge-template-page .letter-pair-link:hover {
    color: #0c5d9f;
    border-color: #a9c8e3;
    background: #edf6ff;
    transform: translateY(-2px);
}

body[data-page="display"].knowledge-template-page .letter-pair-glyph {
    color: #103b62;
    font-family: Cambria, Georgia, "Times New Roman", serif;
    font-size: 56px;
    font-weight: 700;
    line-height: 1;
}

body[data-page="display"].knowledge-template-page .letter-pair-meta {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-top: 10px;
    color: #687e93;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .letter-pair-meta strong {
    color: #1d486d;
    font-size: 21px;
    font-weight: 750;
}

body[data-page="display"].knowledge-template-page .letter-pair-case {
    margin-top: 5px;
    color: #60768b;
    font-size: 14px;
    font-weight: 650;
    letter-spacing: .05em;
}

body[data-page="display"].knowledge-template-page .letter-pair-record {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: #1269b3;
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
}

body[data-page="display"].knowledge-template-page .letter-pair-record:hover {
    color: #084d89;
}

/* 拼音：概览、分类与卡片均使用蓝白学习档案样式。 */
body[data-page="display"].knowledge-template-page .knowledge-insight-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
    margin: 0 0 22px;
}

body[data-page="display"].knowledge-template-page .knowledge-insight-card {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border: 1px solid #d9e6f1;
    border-radius: 16px;
    background: linear-gradient(145deg, #f9fcff, #f2f7fc);
}

body[data-page="display"].knowledge-template-page .knowledge-insight-card--accent {
    border-color: #d9e1ef;
    background: linear-gradient(145deg, #f8fbff, #f3f6fc);
}

body[data-page="display"].knowledge-template-page .knowledge-insight-icon {
    display: grid;
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    place-items: center;
    border: 1px solid #c7ddef;
    border-radius: 14px;
    color: #1769ae;
    background: #eaf4fd;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 21px;
    font-weight: 750;
}

body[data-page="display"].knowledge-template-page .knowledge-insight-card span {
    display: block;
    color: #657b90;
    font-size: 14px;
    font-weight: 650;
}

body[data-page="display"].knowledge-template-page .knowledge-insight-card strong {
    display: block;
    margin-top: 4px;
    color: #173e62;
    font-size: 27px;
    font-weight: 750;
}

body[data-page="display"].knowledge-template-page .knowledge-insight-card strong small {
    color: #6d8296;
    font-size: 14px;
    font-weight: 600;
}

body[data-page="display"].knowledge-template-page .knowledge-group-panel {
    margin-bottom: 30px;
    padding: 23px;
    border: 1px solid #dce7f1;
    border-radius: 18px;
    background: #f8fbfe;
}

body[data-page="display"].knowledge-template-page .knowledge-group-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 17px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-heading span {
    color: #3976ad;
    font-size: 14px;
    font-weight: 750;
    letter-spacing: .04em;
}

body[data-page="display"].knowledge-template-page .knowledge-group-heading h3 {
    margin: 5px 0 0;
    color: #183b5d;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 22px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-heading p {
    margin: 0;
    color: #6c8195;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 12px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card {
    min-width: 0;
    padding: 17px;
    border: 1px solid #d8e5f0;
    border-radius: 14px;
    background: #fff;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card.is-secondary {
    border-style: dashed;
    background: #fbfdff;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card-head strong {
    color: #254865;
    font-size: 16px;
    font-weight: 750;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card-head span {
    color: #697f93;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-score {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-top: 16px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-score strong {
    color: #1769ae;
    font-size: 27px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-score span,
body[data-page="display"].knowledge-template-page .knowledge-group-card > small {
    color: #6c8195;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .knowledge-group-card > small {
    display: block;
    margin-top: 9px;
}

body[data-page="display"].knowledge-template-page .knowledge-pinyin-section {
    margin-top: 31px;
    padding-top: 26px;
    border-top: 1px solid #e2ebf3;
}

body[data-page="display"].knowledge-template-page .knowledge-pinyin-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
}

body[data-page="display"].knowledge-template-page .knowledge-pinyin-heading h3 {
    margin: 0;
    color: #183b5d;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 22px;
}

body[data-page="display"].knowledge-template-page .knowledge-pinyin-heading span {
    color: #6b8094;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .pinyin-kp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 17px;
}

body[data-page="display"].knowledge-template-page .pinyin-kp-card {
    border-color: #d9e5f0;
    border-radius: 18px;
    background: #fff;
}

body[data-page="display"].knowledge-template-page .pinyin-kp-card:hover {
    border-color: color-mix(in srgb, var(--math-card-accent) 55%, #d9e5f0);
    box-shadow: 0 15px 32px rgba(22, 72, 120, .13);
    transform: translateY(-3px);
}

body[data-page="display"].knowledge-template-page .pinyin-kp-practice.math-kp-name {
    padding: 25px 20px 22px;
    color: inherit;
    background: transparent;
}

body[data-page="display"].knowledge-template-page .pinyin-kp-practice.math-kp-name strong {
    color: #103b62;
    font-size: 36px;
}

body[data-page="display"].knowledge-template-page .pinyin-kp-record.math-kp-record {
    display: inline-flex;
    min-height: 0;
    border: 0;
    color: #1269b3;
    background: transparent;
    font-size: 14px;
}

/* 汉字与通用知识点复用标准熟练度卡片。 */
body[data-page="display"].knowledge-template-page .char-kp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
    gap: 18px;
}

body[data-page="display"].knowledge-template-page .knowledge-char-name strong {
    font-family: "Noto Serif SC", "Songti SC", SimSun, serif;
    font-size: 56px;
}

body[data-page="display"].knowledge-template-page .knowledge-generic-card .math-kp-name strong {
    display: -webkit-box;
    min-height: 2.5em;
    overflow: hidden;
    font-family: "Noto Serif SC", "Songti SC", "Microsoft YaHei", serif;
    font-size: 25px;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: normal;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

body[data-page="display"].knowledge-template-page .knowledge-empty-panel {
    display: flex;
    min-height: 190px;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 34px;
    border: 1px dashed #cbdcea;
    border-radius: 18px;
    background: linear-gradient(145deg, #fbfdff, #f3f8fc);
}

body[data-page="display"].knowledge-template-page .knowledge-empty-mark {
    display: grid;
    width: 66px;
    height: 66px;
    flex: 0 0 66px;
    place-items: center;
    border: 1px solid #c8dced;
    border-radius: 18px;
    color: #1769ae;
    background: #eaf4fd;
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 25px;
    font-weight: 750;
}

body[data-page="display"].knowledge-template-page .knowledge-empty-panel h3 {
    margin: 0;
    color: #214565;
    font-size: 20px;
}

body[data-page="display"].knowledge-template-page .knowledge-empty-panel p {
    max-width: 560px;
    margin: 8px 0 0;
    color: #657b90;
    font-size: 15px;
    line-height: 1.7;
}

/* 单个知识点详情同样落在共享模板内。 */
body[data-page="display"].knowledge-detail-page .knowledge-hero-stat strong {
    font-size: clamp(18px, 1.8vw, 24px);
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress {
    padding: clamp(22px, 3vw, 32px);
    border: 1px solid #d7e4ef;
    border-radius: 18px;
    background: linear-gradient(145deg, #fbfdff, #f3f8fc);
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress > div:first-child {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress > div > span {
    color: #537087;
    font-size: 16px;
    font-weight: 700;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress > div > strong {
    color: #153e63;
    font-size: 34px;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress > div > strong small {
    color: #6d8296;
    font-size: 15px;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-track {
    height: 10px;
    margin-top: 14px;
    overflow: hidden;
    border-radius: 99px;
    background: #dfe9f2;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-track span {
    display: block;
    width: var(--knowledge-detail-score, 0%);
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #176fc1, #4a9cdd);
}

body[data-page="display"].knowledge-template-page .knowledge-detail-progress p {
    margin: 14px 0 0;
    color: #61788e;
    font-size: 15px;
    line-height: 1.75;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 15px;
    margin-top: 18px;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-grid article {
    min-width: 0;
    padding: 20px;
    border: 1px solid #dce7f1;
    border-radius: 15px;
    background: #fff;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-grid span {
    display: block;
    color: #6b8094;
    font-size: 14px;
}

body[data-page="display"].knowledge-template-page .knowledge-detail-grid strong {
    display: block;
    margin-top: 9px;
    overflow-wrap: anywhere;
    color: #214564;
    font-size: 17px;
    line-height: 1.55;
}

@media (max-width: 1120px) {
    body[data-page="display"].knowledge-template-page .letter-pair-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (min-width: 1200px) {
    body[data-page="display"].knowledge-template-page .letter-pair-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    body[data-page="display"].knowledge-template-page .letter-pair-grid > .letter-pair-card:nth-last-child(2):nth-child(4n + 1) {
        grid-column-start: 2;
    }
}

@media (max-width: 760px) {
    body[data-page="display"].knowledge-template-page #kpSearch,
    body[data-page="display"].knowledge-template-page #charSearch,
    body[data-page="display"].knowledge-template-page #genericSearch {
        width: 100% !important;
        font-size: 16px !important;
    }

    body[data-page="display"].knowledge-template-page .knowledge-insight-grid,
    body[data-page="display"].knowledge-template-page .knowledge-detail-grid {
        grid-template-columns: 1fr;
    }

    body[data-page="display"].knowledge-template-page .knowledge-group-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 620px) {
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--letter span,
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--pinyin span,
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--char span,
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--generic span {
        font-size: 56px;
    }

    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--letter small { font-size: 36px; }
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--pinyin small,
    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--char small { font-size: 25px; }

    body[data-page="display"].knowledge-template-page .letter-pair-grid,
    body[data-page="display"].knowledge-template-page .pinyin-kp-grid,
    body[data-page="display"].knowledge-template-page .char-kp-grid,
    body[data-page="display"].knowledge-template-page .knowledge-generic-grid,
    body[data-page="display"].knowledge-template-page .knowledge-group-grid {
        grid-template-columns: 1fr;
    }

    body[data-page="display"].knowledge-template-page .letter-pair-link { min-height: 145px; }
    body[data-page="display"].knowledge-template-page .letter-pair-glyph { font-size: 52px; }

    body[data-page="display"].knowledge-template-page .knowledge-group-panel { padding: 18px; }

    body[data-page="display"].knowledge-template-page .knowledge-pinyin-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    body[data-page="display"].knowledge-template-page .knowledge-empty-panel {
        align-items: flex-start;
        flex-direction: column;
        padding: 25px;
    }

    body[data-page="display"].knowledge-template-page .knowledge-hero-mark--detail span {
        font-size: 36px;
    }
}

@media (prefers-reduced-motion: reduce) {
    body[data-page="display"].knowledge-template-page *,
    body[data-page="display"].knowledge-template-page *::before,
    body[data-page="display"].knowledge-template-page *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}