:root {
    --black: #0a0a0a;
    --paper: #eeeae0;
    --red: #e53a2f;
    --gray: #77746d;
    --page-x: clamp(1.25rem, 7vw, 7rem);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    min-width: 320px;
    background: var(--paper);
    color: var(--black);
    font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.7;
}

a {
    color: inherit;
}

a:focus-visible {
    outline: 3px solid var(--red);
    outline-offset: 5px;
}

.detail-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.5rem var(--page-x);
    border-bottom: 3px solid var(--black);
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 0.16em;
}

.detail-nav a {
    text-decoration: none;
}

.module-switch {
    display: flex;
    justify-content: center;
    gap: clamp(0.65rem, 2vw, 1.5rem);
    margin-left: auto;
    list-style: none;
}

.module-switch a {
    display: block;
    padding: 0.42rem 0.1rem;
    border-bottom: 2px solid transparent;
    color: var(--gray);
    font-size: 0.82rem;
    white-space: nowrap;
}

.module-switch a:hover,
.module-switch a[aria-current="page"] {
    border-color: var(--red);
    color: var(--black);
}

.detail-header {
    position: relative;
    padding: clamp(5rem, 12vw, 9rem) var(--page-x) clamp(3rem, 7vw, 6rem);
    overflow: hidden;
}

.chapter-label {
    color: var(--red);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.24em;
}

.detail-header h1 {
    margin-top: 0.5rem;
    font-size: clamp(4rem, 13vw, 10rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.09em;
}

.detail-header h1.nowrap-title {
    font-size: clamp(1.2rem, 5.8vw, 6rem);
    letter-spacing: -0.06em;
    white-space: nowrap;
}

.detail-header::after {
    content: attr(data-mark);
    position: absolute;
    right: var(--page-x);
    bottom: -0.2em;
    color: rgba(10, 10, 10, 0.05);
    font-size: clamp(10rem, 30vw, 25rem);
    font-weight: 900;
    line-height: 1;
}

.detail-list {
    display: grid;
    gap: 1.25rem;
    padding: 0 var(--page-x) 7rem;
}

.single-detail {
    min-height: 48vh;
}

.single-detail .detail-card {
    min-height: 310px;
}

.detail-card {
    position: relative;
    display: grid;
    grid-template-columns: minmax(10rem, 0.35fr) 1fr;
    gap: clamp(1.5rem, 5vw, 5rem);
    padding: clamp(1.5rem, 4vw, 3.5rem);
    border: 4px solid var(--black);
    background: #f8f5ed;
    box-shadow: 0.65rem 0.65rem 0 var(--red);
}

.detail-card time,
.detail-card .tag {
    font-family: Georgia, serif;
    font-size: 0.82rem;
    font-style: italic;
    font-weight: 700;
}

.detail-card h2 {
    margin-bottom: 0.4rem;
    font-size: clamp(1.6rem, 4vw, 3rem);
    line-height: 1.1;
}

.detail-card h3 {
    margin-bottom: 1rem;
    color: var(--red);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

.detail-card p + p {
    margin-top: 0.8rem;
}

.skill-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.skill-grid .detail-card {
    display: block;
}

/* 技能页：桌面端一屏展示 */
.skills-page {
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    min-height: 100vh;
    min-height: 100svh;
    overflow: hidden;
}

.skills-page .detail-header {
    padding-top: clamp(2rem, 5vh, 4rem);
    padding-bottom: clamp(1.5rem, 4vh, 3rem);
}

.skills-page .detail-header h1 {
    font-size: clamp(3.5rem, 9vh, 7rem);
}

.skills-page .skill-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
    min-height: 0;
    padding-bottom: clamp(1.5rem, 4vh, 3rem);
}

.skills-page .skill-grid .detail-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 0;
}

.skills-page .skill-grid .detail-card:nth-child(2) {
    transform: translateY(clamp(0.5rem, 1.5vh, 1rem));
}

.skills-page .skill-grid .detail-card p {
    max-width: 30rem;
}

.contact-box {
    background: var(--black);
    color: var(--paper);
    box-shadow: 0.65rem 0.65rem 0 var(--red);
}

.contact-box a {
    display: block;
    width: fit-content;
    margin-top: 0.55rem;
    color: var(--red);
    font-weight: 900;
    overflow-wrap: anywhere;
}

@media (max-width: 650px) {
    .detail-nav {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.8rem;
    }

    .module-switch {
        justify-content: flex-start;
        width: 100%;
        margin-left: 0;
        overflow-x: auto;
        padding-bottom: 0.3rem;
    }

    .module-switch a {
        font-size: 0.76rem;
    }

    .detail-card,
    .skill-grid {
        grid-template-columns: 1fr;
    }

    .skills-page {
        display: block;
        overflow: visible;
    }

    .skills-page .skill-grid {
        grid-template-columns: 1fr;
    }

    .skills-page .skill-grid .detail-card:nth-child(2) {
        transform: none;
    }

    .detail-card {
        gap: 0.8rem;
        box-shadow: 0.4rem 0.4rem 0 var(--red);
    }
}