.highlighter-rouge {
    font-size: 0.875rem;
}

/* Blog index */
.blog-index-page {
    min-height: calc(100vh - 170px);
    padding: 5.5rem 0 4rem;
}

.blog-index-header {
    max-width: 760px;
    margin-bottom: 3.25rem;
}

.blog-index-kicker {
    margin: 0 0 0.65rem;
    color: #a0382f;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.blog-index-header h1 {
    margin: 0 0 0.8rem;
    color: #28201d;
    font-size: clamp(2.7rem, 7vw, 4.8rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 0.95;
}

.blog-index-intro {
    max-width: 680px;
    margin: 0;
    color: #6e625c;
    font-size: 1.08rem;
    line-height: 1.75;
}

.blog-year {
    margin-bottom: 2.5rem;
}

.blog-year > h2 {
    margin: 0 0 1rem;
    color: #a0382f;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.blog-list,
.blog-empty {
    border: 1px solid rgba(121, 70, 50, 0.14);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.78);
    box-shadow: 0 18px 45px rgba(93, 58, 38, 0.08);
}

.blog-empty {
    display: flex;
    align-items: center;
    gap: 1.4rem;
    max-width: 760px;
    padding: 2rem;
}

.blog-empty-mark {
    display: grid;
    flex: 0 0 3.4rem;
    height: 3.4rem;
    place-items: center;
    border-radius: 50%;
    background: #a0382f;
    color: #fffaf2;
    font-size: 1.25rem;
}

.blog-empty h2 {
    margin: 0 0 0.35rem;
    color: #332824;
    font-size: 1.25rem;
}

.blog-empty p {
    margin: 0;
    color: #756a64;
    line-height: 1.65;
}

.blog-year-nav {
    top: 80px;
}

.blog-collection-groups {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.25rem;
    align-items: stretch;
    margin-bottom: 3.5rem;
}

.blog-categories {
    min-width: 0;
}

.blog-section-heading {
    margin-bottom: 1rem;
}

.blog-section-heading p {
    margin: 0 0 0.2rem;
    color: #a0382f;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.blog-section-heading h2 {
    margin: 0;
    color: #332824;
    font-size: 1.45rem;
    font-weight: 700;
}

.blog-latest-heading {
    margin-top: 0.5rem;
}

.blog-category-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    max-width: 900px;
}

.blog-paper-categories {
    display: flex;
    flex-direction: column;
}

.blog-paper-grid {
    flex: 1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.blog-paper-card {
    min-height: 104px;
}

.blog-practice-grid {
    grid-template-columns: minmax(0, 440px);
}

.blog-category-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: 104px;
    padding: 1.25rem;
    border: 1px solid rgba(121, 70, 50, 0.14);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.78);
    box-shadow: 0 12px 30px rgba(93, 58, 38, 0.06);
    color: #332824;
    text-decoration: none;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.blog-category-card:hover {
    transform: translateY(-3px);
    border-color: rgba(160, 56, 47, 0.38);
    box-shadow: 0 18px 36px rgba(93, 58, 38, 0.11);
    color: #332824;
    text-decoration: none;
}

.blog-category-icon {
    display: grid;
    flex: 0 0 2.8rem;
    height: 2.8rem;
    place-items: center;
    border-radius: 0.8rem;
    background: rgba(160, 56, 47, 0.1);
    color: #a0382f;
    font-size: 1.05rem;
}

.blog-category-card strong,
.blog-category-card small {
    display: block;
}

.blog-category-card strong {
    margin-bottom: 0.2rem;
    font-size: 1.02rem;
}

.blog-category-card small {
    color: #85766f;
    font-size: 0.78rem;
}

.blog-category-arrow {
    margin-left: auto;
    color: #b69f95;
    font-size: 0.8rem;
}

.blog-category-page {
    min-height: calc(100vh - 170px);
    padding: 5.5rem 0 4rem;
}

.blog-category-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    color: #8b5149;
    font-size: 0.9rem;
}

.blog-category-back:hover {
    color: #a0382f;
}

.blog-category-header {
    max-width: 760px;
    margin-bottom: 2.5rem;
}

.blog-category-header h1 {
    margin: 0 0 0.6rem;
    color: #28201d;
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    letter-spacing: -0.035em;
}

.blog-category-header p {
    margin: 0;
    color: #756a64;
    font-size: 1rem;
    line-height: 1.7;
}

.blog-resource-section {
    max-width: 900px;
}

.blog-resource-list {
    overflow: hidden;
    border: 1px solid rgba(121, 70, 50, 0.14);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.78);
    box-shadow: 0 18px 45px rgba(93, 58, 38, 0.08);
}

.blog-resource-item {
    display: grid;
    grid-template-columns: 3.4rem minmax(0, 1fr) auto 1rem;
    align-items: center;
    gap: 1rem;
    min-height: 78px;
    padding: 0.9rem 1.2rem;
    border-bottom: 1px solid rgba(121, 70, 50, 0.1);
    color: #332824;
    text-decoration: none;
    transition: background-color 160ms ease;
}

.blog-resource-item:last-child {
    border-bottom: 0;
}

.blog-resource-item:hover {
    background: rgba(160, 56, 47, 0.055);
    color: #332824;
    text-decoration: none;
}

.blog-resource-number {
    color: #a0382f;
    font-family: "Source Code Pro", monospace;
    font-size: 0.85rem;
    font-weight: 700;
}

.blog-resource-copy strong,
.blog-resource-copy small {
    display: block;
}

.blog-resource-copy strong {
    margin-bottom: 0.18rem;
    font-size: 1rem;
}

.blog-resource-copy small {
    color: #85766f;
    font-size: 0.8rem;
}

.blog-resource-copy em {
    display: block;
    margin-top: 0.65rem;
    color: #9b6c5d;
    font-size: 0.78rem;
    font-style: normal;
    letter-spacing: 0.02em;
}

.blog-resource-course {
    min-height: 154px;
    grid-template-columns: 5rem minmax(0, 1fr) auto 1rem;
    padding: 1.55rem 1.7rem;
    background:
        radial-gradient(circle at 88% 22%, rgba(217, 143, 87, 0.16), transparent 30%),
        linear-gradient(135deg, rgba(255, 251, 244, 0.98), rgba(249, 234, 219, 0.88));
}

.blog-resource-course:hover {
    background:
        radial-gradient(circle at 88% 22%, rgba(217, 143, 87, 0.23), transparent 32%),
        linear-gradient(135deg, #fffaf2, #f7e4d2);
}

.blog-resource-course-icon {
    display: grid;
    width: 4.35rem;
    height: 4.35rem;
    place-items: center;
    border-radius: 1.15rem;
    background: #a0382f;
    box-shadow: 0 12px 28px rgba(160, 56, 47, 0.2);
    color: #fff8ef;
    font-size: 1.5rem;
}

.blog-resource-course .blog-resource-copy strong {
    margin-bottom: 0.32rem;
    color: #30221d;
    font-size: 1.55rem;
}

.blog-resource-course .blog-resource-copy small {
    font-size: 0.9rem;
}

.blog-resource-course .blog-resource-type {
    padding: 0.58rem 0.78rem;
    letter-spacing: 0.04em;
}

.blog-resource-type {
    padding: 0.22rem 0.48rem;
    border-radius: 0.35rem;
    background: rgba(160, 56, 47, 0.1);
    color: #a0382f;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.blog-resource-item > .fa-arrow-up-right-from-square {
    color: #b69f95;
    font-size: 0.72rem;
}

/* Course homepage */
.course-page {
    min-height: calc(100vh - 170px);
    padding: 5.5rem 0 4rem;
}

.course-hero {
    max-width: 980px;
    margin-bottom: 2rem;
}

.course-hero h1 {
    margin: 0 0 0.75rem;
    color: #28201d;
    font-size: clamp(2.5rem, 6vw, 4.6rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 0.98;
}

.course-description {
    max-width: 780px;
    margin: 0;
    color: #6e625c;
    font-size: 1.04rem;
    line-height: 1.75;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem 1.5rem;
    margin-top: 1.25rem;
    color: #756a64;
    font-size: 0.88rem;
}

.course-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.course-meta i {
    color: #a0382f;
}

.course-week-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin: 0 0 3rem;
}

.course-week-nav a {
    padding: 0.45rem 0.8rem;
    border: 1px solid rgba(121, 70, 50, 0.15);
    border-radius: 999px;
    background: rgba(255, 252, 247, 0.72);
    color: #7a5e54;
    font-size: 0.8rem;
    text-decoration: none;
}

.course-week-nav a:hover {
    border-color: rgba(160, 56, 47, 0.4);
    color: #a0382f;
}

.course-week {
    margin-bottom: 3.25rem;
    scroll-margin-top: 90px;
}

.course-week-heading {
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.course-week-heading span {
    color: #a0382f;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.course-week-heading h2 {
    margin: 0;
    color: #332824;
    font-size: 1.5rem;
}

.course-lessons {
    display: grid;
    gap: 1rem;
}

.course-lesson {
    overflow: hidden;
    border: 1px solid rgba(121, 70, 50, 0.14);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.78);
    box-shadow: 0 14px 34px rgba(93, 58, 38, 0.065);
}

.course-lesson-header {
    display: grid;
    grid-template-columns: 3.2rem minmax(0, 1fr);
    gap: 1rem;
    align-items: center;
    padding: 1.15rem 1.3rem;
    border-bottom: 1px solid rgba(121, 70, 50, 0.1);
}

.course-lesson-number {
    color: #a0382f;
    font-family: "Source Code Pro", monospace;
    font-size: 0.92rem;
    font-weight: 700;
}

.course-lesson-header p {
    margin: 0 0 0.25rem;
    color: #8a7b73;
    font-size: 0.75rem;
}

.course-lesson-header h3 {
    margin: 0;
    color: #332824;
    font-size: 1.08rem;
    font-weight: 700;
}

.course-lesson-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) 9rem;
}

.course-lesson-grid > section {
    padding: 1.1rem 1.3rem;
    border-right: 1px solid rgba(121, 70, 50, 0.09);
}

.course-lesson-grid > section:last-child {
    border-right: 0;
}

.course-lesson-grid h4 {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin: 0 0 0.55rem;
    color: #a0382f;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.course-lesson-grid p,
.course-lesson-grid li {
    color: #665c57;
    font-size: 0.84rem;
    line-height: 1.65;
}

.course-lesson-grid p,
.course-lesson-grid ul {
    margin: 0;
}

.course-lesson-grid ul {
    padding-left: 1.1rem;
}

.course-note-cell a,
.course-homework-file a,
.course-note-pending {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.58rem;
    border-radius: 0.45rem;
    font-size: 0.76rem;
    font-weight: 700;
}

.interp-lesson-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(12rem, 0.75fr) 9rem;
}

.interp-materials a {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    width: fit-content;
    margin-bottom: 0.5rem;
    color: #8b5149;
    font-size: 0.82rem;
    font-weight: 600;
}

.interp-materials a:last-child {
    margin-bottom: 0;
}

.interp-materials a:hover {
    color: #a0382f;
}

.course-note-cell a {
    background: rgba(160, 56, 47, 0.1);
    color: #a0382f;
}

.course-homework-file {
    margin-top: 0.85rem;
}

.course-homework-file a {
    background: rgba(160, 56, 47, 0.1);
    color: #a0382f;
}

.course-note-pending {
    background: rgba(117, 106, 100, 0.09);
    color: #948983;
}

@media (max-width: 767.98px) {
    .course-page {
        padding-top: 4.5rem;
    }

    .course-lesson-grid {
        grid-template-columns: 1fr;
    }

    .course-lesson-grid > section {
        border-right: 0;
        border-bottom: 1px solid rgba(121, 70, 50, 0.09);
    }

    .course-lesson-grid > section:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 575.98px) {
    .blog-index-page {
        padding-top: 4.5rem;
    }

    .blog-empty {
        align-items: flex-start;
        padding: 1.35rem;
    }

    .blog-category-grid {
        grid-template-columns: 1fr;
    }

    .blog-paper-grid {
        grid-template-columns: 1fr;
    }

    .blog-practice-grid {
        grid-template-columns: 1fr;
    }

    .blog-category-card {
        min-height: 92px;
    }

    .blog-category-page {
        padding-top: 4.5rem;
    }

    .blog-resource-item {
        grid-template-columns: 2.7rem minmax(0, 1fr) 1rem;
        gap: 0.7rem;
        padding: 0.9rem;
    }

    .blog-resource-course {
        min-height: 132px;
        grid-template-columns: 3.6rem minmax(0, 1fr) 1rem;
        padding: 1.1rem;
    }

    .blog-resource-course-icon {
        width: 3.25rem;
        height: 3.25rem;
        border-radius: 0.85rem;
        font-size: 1.1rem;
    }

    .blog-resource-course .blog-resource-copy strong {
        font-size: 1.2rem;
    }

    .blog-resource-type {
        display: none;
    }
}

@media (min-width: 576px) and (max-width: 991.98px) {
    .blog-paper-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .blog-paper-card {
        min-height: 92px;
    }
}

.leetcode-plan-page {
    max-width: 1120px;
    margin: 0 auto;
    padding: 7.5rem 2rem 5rem;
}

.leetcode-plan-hero {
    margin: 2.5rem 0 2rem;
}

.leetcode-plan-hero h1 {
    margin: 0.2rem 0 0.7rem;
    color: #261d1a;
    font-size: clamp(2.8rem, 7vw, 5rem);
    letter-spacing: -0.06em;
}

.leetcode-plan-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.35rem;
}

.leetcode-plan-meta span,
.leetcode-plan-meta a {
    padding: 0.55rem 0.75rem;
    border: 1px solid rgba(121, 70, 50, 0.13);
    border-radius: 999px;
    background: rgba(255, 252, 247, 0.74);
    color: #7a5a4e;
    font-size: 0.8rem;
}

.leetcode-plan-meta i {
    margin-right: 0.35rem;
    color: #a0382f;
}

.leetcode-routine {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: hidden;
    margin: 2rem 0;
    border: 1px solid rgba(121, 70, 50, 0.13);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.78);
}

.leetcode-routine div {
    padding: 1rem 1.1rem;
    border-right: 1px solid rgba(121, 70, 50, 0.1);
}

.leetcode-routine div:last-child {
    border-right: 0;
}

.leetcode-routine strong,
.leetcode-routine span {
    display: block;
}

.leetcode-routine strong {
    margin-bottom: 0.3rem;
    color: #a0382f;
    font: 700 0.75rem "Source Code Pro", monospace;
}

.leetcode-routine span {
    color: #75645d;
    font-size: 0.78rem;
}

.leetcode-progress-panel {
    display: grid;
    grid-template-columns: auto minmax(12rem, 1fr) auto;
    align-items: center;
    gap: 1.2rem;
    padding: 1.1rem 1.3rem;
    border-radius: 1rem;
    background: #33241f;
    color: #fff8ef;
}

.leetcode-progress-panel p {
    margin: 0;
    color: #d9b8a9;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.leetcode-progress-panel strong {
    font: 700 1.2rem "Source Code Pro", monospace;
}

.leetcode-progress-track {
    overflow: hidden;
    height: 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.13);
}

.leetcode-progress-track span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: #e49b73;
    transition: width 180ms ease;
}

.leetcode-progress-panel button,
.leetcode-topic-nav button {
    border: 0;
    cursor: pointer;
}

.leetcode-progress-panel button {
    padding: 0.45rem 0.65rem;
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: #f4ded1;
    font-size: 0.72rem;
}

.leetcode-topic-nav {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    margin: 1.6rem 0;
    padding-bottom: 0.3rem;
}

.leetcode-topic-nav button {
    flex: 0 0 auto;
    padding: 0.5rem 0.75rem;
    border: 1px solid rgba(121, 70, 50, 0.13);
    border-radius: 999px;
    background: rgba(255, 252, 247, 0.74);
    color: #806d65;
    font-size: 0.75rem;
}

.leetcode-topic-nav button.active {
    border-color: #a0382f;
    background: #a0382f;
    color: #fff;
}

.leetcode-days {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.leetcode-day {
    overflow: hidden;
    border: 1px solid rgba(121, 70, 50, 0.13);
    border-radius: 1rem;
    background: rgba(255, 252, 247, 0.8);
    box-shadow: 0 14px 36px rgba(93, 58, 38, 0.06);
}

.leetcode-day > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(121, 70, 50, 0.1);
    background: rgba(160, 56, 47, 0.035);
}

.leetcode-day > header span {
    color: #a0382f;
    font: 700 0.72rem "Source Code Pro", monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.leetcode-day > header p {
    margin: 0;
    color: #9a837a;
    font-size: 0.7rem;
}

.leetcode-problem {
    display: grid;
    grid-template-columns: 1.8rem minmax(0, 1fr) 1.5rem;
    align-items: center;
    gap: 0.65rem;
    min-height: 86px;
    margin: 0;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid rgba(121, 70, 50, 0.08);
    cursor: pointer;
}

.leetcode-problem:last-child {
    border-bottom: 0;
}

.leetcode-problem input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.leetcode-check {
    display: grid;
    width: 1.35rem;
    height: 1.35rem;
    place-items: center;
    border: 1px solid #d8c2b7;
    border-radius: 0.4rem;
    color: transparent;
    font-size: 0.6rem;
}

.leetcode-problem.is-complete .leetcode-check {
    border-color: #a0382f;
    background: #a0382f;
    color: #fff;
}

.leetcode-problem-copy small,
.leetcode-problem-copy strong,
.leetcode-problem-copy > span {
    display: block;
}

.leetcode-problem-copy small {
    color: #a38e84;
    font: 600 0.62rem "Source Code Pro", monospace;
}

.leetcode-problem-copy strong {
    margin: 0.12rem 0 0.35rem;
    color: #392b26;
    font-size: 0.9rem;
}

.leetcode-problem.is-complete .leetcode-problem-copy strong {
    color: #9b8c85;
    text-decoration: line-through;
}

.leetcode-problem-copy b,
.leetcode-problem-copy em {
    display: inline-block;
    margin-right: 0.4rem;
    font-size: 0.62rem;
    font-style: normal;
    font-weight: 600;
}

.leetcode-problem-copy em {
    color: #9a837a;
}

.difficulty-简单 { color: #27876a; }
.difficulty-中等 { color: #b5771e; }
.difficulty-困难 { color: #ba4038; }

.leetcode-problem > a {
    color: #b59b90;
    text-align: center;
}

@media (max-width: 767.98px) {
    .leetcode-plan-page {
        padding: 5.5rem 1rem 3rem;
    }

    .leetcode-routine {
        grid-template-columns: repeat(2, 1fr);
    }

    .leetcode-routine div:nth-child(2) {
        border-right: 0;
    }

    .leetcode-routine div:nth-child(-n + 2) {
        border-bottom: 1px solid rgba(121, 70, 50, 0.1);
    }

    .leetcode-progress-panel {
        grid-template-columns: 1fr auto;
    }

    .leetcode-progress-track {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .leetcode-days {
        grid-template-columns: 1fr;
    }
}

/* Blog content styling */
.blog-content {
    line-height: 1.7;
}

.blog-content h1,
.blog-content h2,
.blog-content h3,
.blog-content h4,
.blog-content h5,
.blog-content h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.blog-content h1 {
    font-size: 2rem;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 0.5rem;
}

.blog-content h2 {
    font-size: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    padding-bottom: 0.25rem;
}

.blog-content h3 {
    font-size: 1.25rem;
}

.blog-content p {
    margin-bottom: 1rem;
}

.blog-content ul,
.blog-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.blog-content li {
    margin-bottom: 0.5rem;
}

.blog-content blockquote {
    border-left: 3px solid #e0e0e0;
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: #6c757d;
}

.blog-content img {
    max-width: 100%;
    height: auto;
    border-radius: 0.375rem;
    margin: 1rem 0;
}

/* Multi-column image layouts */
.blog-content .row img {
    margin: 0.5rem 0;
    transition: transform 0.2s ease-in-out;
}

.blog-content .row img:hover {
    transform: scale(1.02);
}

/* Image gallery styles */
.blog-content .img-fluid {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.blog-content .shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

/* Responsive image containers */
.blog-content .col-md-6 img,
.blog-content .col-md-4 img,
.blog-content .col-lg-3 img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.375rem;
}

/* Mixed content layouts */
.blog-content .col-md-8 {
    padding-right: 1rem;
}

.blog-content .col-md-4 {
    padding-left: 1rem;
}

@media (max-width: 768px) {
    .blog-content .col-md-8,
    .blog-content .col-md-4 {
        padding: 0;
        margin-bottom: 1rem;
    }
    
    .blog-content .col-md-6 img,
    .blog-content .col-md-4 img {
        height: 150px;
    }
}

.blog-content table {
    width: 100%;
    margin-bottom: 1rem;
    border-collapse: collapse;
}

.blog-content table th,
.blog-content table td {
    padding: 0.75rem;
    border: 1px solid #dee2e6;
}

.blog-content table th {
    background-color: #f8f9fa;
    font-weight: 600;
}

/* Math formula styling */
.katex-display {
    margin: 1.5rem 0;
    text-align: center;
    overflow-x: auto;
    overflow-y: hidden;
}

.katex {
    font-size: 1.1em;
}

/* Ensure math formulas are properly displayed */
.katex-display .katex {
    display: inline-block;
    white-space: nowrap;
}

/* Fix for math formula containers */
.katex-display {
    display: block;
    width: 100%;
}

/* Ensure proper spacing around math formulas */
.blog-content .katex-display {
    margin: 2rem 0;
    padding: 1rem 0;
}

/* Inline math styling */
.katex-inline {
    display: inline;
    margin: 0 0.2em;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-weight: 600;
}

/* Blog layout — content preserves original width, TOC uses remaining space */
.blog-layout-wrapper {
    display: flex;
    justify-content: center;
    padding: 0 15px;
    gap: 1.5rem;
}

.blog-main {
    flex: 0 1 950px;
    min-width: 0;
}

.blog-toc-sidebar {
    flex: 0 0 auto;
    width: clamp(160px, 18vw, 360px);
    display: none;
}

@media (min-width: 992px) {
    .blog-toc-sidebar {
        display: block;
    }
}

/* Blog Table of Contents */
.blog-toc-nav {
    position: sticky;
    top: 6rem;
    max-height: calc(100vh - 8rem);
    overflow-y: auto;
    padding-left: 0.75rem;
    border-left: 2px solid #f0f0f0;
}

.blog-toc-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #aaa;
    margin-bottom: 0.75rem;
}

.blog-toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.blog-toc-list li {
    margin-bottom: 0.25rem;
}

.blog-toc-list a {
    display: block;
    font-size: 0.8rem;
    line-height: 1.4;
    color: #999;
    text-decoration: none;
    padding: 0.15rem 0;
    transition: color 0.2s ease;
}

.blog-toc-list a:hover {
    color: #2d3436;
    text-decoration: none;
}

.blog-toc-list a.toc-active {
    color: #212529;
    font-weight: 600;
}

.blog-toc-list .toc-h3 {
    padding-left: 0.75rem;
}

.blog-toc-list .toc-h4 {
    padding-left: 1.5rem;
}

/* Hide TOC scrollbar */
.blog-toc-nav::-webkit-scrollbar {
    width: 0;
}

.blog-toc-nav {
    scrollbar-width: none;
}