:root {
    --bg: #f8fafc;
    --surface: rgba(255, 255, 255, 0.95);
    --surface-solid: #ffffff;
    --surface-soft: #f1f5f9;
    --text: #1e293b;
    --text-soft: #475569;
    --text-faint: #64748b;
    --line: #e2e8f0;

    --accent: #2563eb;
    --accent-dark: #1e3a8a;
    --accent-soft: #eff6ff;
    --signal: #3b82f6;

    --shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
    --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.05);

    --radius-xl: 24px;
    --radius-lg: 18px;
    --radius-md: 12px;

    --container: 1280px;
    --header-height: 70px;
}

[data-theme="dark"] {
    --bg: #0f172a;
    --surface: rgba(30, 41, 59, 0.95);
    --surface-solid: #1e293b;
    --surface-soft: #334155;
    --text: #f8fafc;
    --text-soft: #cbd5e1;
    --text-faint: #94a3b8;
    --line: rgba(241, 245, 249, 0.1);
    --accent: #60a5fa;
    --accent-dark: #bfdbfe;
    --accent-soft: #1e3a8a;
    --signal: #3b82f6;
    --shadow: 0 22px 54px rgba(0, 0, 0, .4);
    --shadow-soft: 0 12px 32px rgba(0, 0, 0, .25);
}

* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    color: var(--text);
    background:
        linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px),
        var(--bg);
    background-size: 32px 32px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
}
a {
    color: inherit;
    text-decoration: none;
}
button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: min(calc(100% - 40px), var(--container));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.25s ease;
}
.site-header.scrolled {
    border-color: var(--line);
}

.nav-wrap {
    height: 100%;
    display: flex;
    align-items: center;
    gap: 32px;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    line-height: 1.05;
}
.brand-label {
    display: block;
    max-width: 250px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition: opacity .22s ease, transform .32s cubic-bezier(.2,.8,.2,1);
}
.brand-sublabel {
    display: block;
    margin-top: 4px;
    color: var(--text-faint);
    font-size: .54rem;
    font-weight: 700;
    letter-spacing: .13em;
    white-space: nowrap;
    transition: opacity .22s ease, transform .32s cubic-bezier(.2,.8,.2,1);
}
.brand-label.is-changing,
.brand-sublabel.is-changing {
    opacity: 0;
    transform: translateY(-6px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    flex-shrink: 0;
}
.brand-mark {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--accent-dark);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 800;
    flex-shrink: 0;
}

.site-nav {
    margin-left: auto;
    display: flex;
    gap: 28px;
}
.site-nav a {
    color: var(--text-soft);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 4px 0;
    position: relative;
    transition: color 0.2s ease;
}
.site-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.25s ease;
}
.site-nav a:hover {
    color: var(--accent-dark);
}
.site-nav a:hover::after {
    transform: scaleX(1);
}

.nav-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}
.theme-toggle,
.nav-toggle {
    border: 1px solid var(--line);
    background: var(--surface-solid);
    color: var(--text);
    border-radius: 12px;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.theme-toggle:hover,
.nav-toggle:hover {
    border-color: var(--accent);
    background: var(--surface-soft);
}

.nav-toggle {
    display: none;
    padding: 10px;
    flex-direction: column;
    gap: 4px;
}
.nav-toggle span {
    display: block;
    height: 2px;
    width: 20px;
    background: currentColor;
    border-radius: 2px;
    transition: 0.25s ease;
}

.eyebrow {
    display: block;
    color: var(--text-faint);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.title-wrap h2 {
    margin: 0;
    font-size: 1.8rem;
    color: var(--accent-dark);
    letter-spacing: -0.02em;
    font-weight: 800;
    line-height: 1.2;
}
.section-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 16px;
}
.section-title-row .title-wrap {
    display: inline-flex;
    align-items: flex-end;
    gap: 10px;
    min-height: 34px;
}
.section-title-row .title-wrap h2 {
    margin: 0;
}
.title-side-label {
    position: static;
    margin: 0 0 2px;
    font-size: .62rem;
    letter-spacing: .08em;
    color: var(--text-faint);
    white-space: nowrap;
}
.sort-note {
    color: var(--text-faint);
    font-size: 0.85rem;
}

.profile-panel,
.project-overview,
.experience-strip,
.detail-card {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(4px);
}

.overview-section {
    padding: 30px 0 40px;
}
.overview-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
}

.profile-panel {
    display: flex;
    flex-direction: column;
    padding: 32px;
}
.profile-head h1 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent-dark);
    line-height: 1.2;
    letter-spacing: -0.02em;
}
.profile-subtitle {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 6px;
}
.profile-intro {
    margin: 20px 0 24px;
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.7;
}

.profile-facts {
    display: grid;
    gap: 12px;
    margin-bottom: 30px;
}
.fact {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface-solid);
    transition: border-color 0.2s ease, transform 0.2s ease;
}
.fact:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}
.fact-icon {
    color: var(--accent);
    display: flex;
    flex-shrink: 0;
}
.fact-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.fact-text span {
    color: var(--text-faint);
    font-size: 0.75rem;
    line-height: 1;
    margin-bottom: 4px;
}
.fact-text strong {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
    word-break: break-word;
}

.profile-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
}
.button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
}
.button-primary {
    background: var(--accent-dark);
    color: #fff;
}
.button-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37, 99, 235, .25);
}
.button-secondary {
    background: var(--surface-soft);
    color: var(--accent-dark);
    border: 1px solid var(--line);
}
.button-secondary:hover {
    border-color: var(--accent);
    background: var(--surface-solid);
    transform: translateY(-1px);
}

.project-overview {
    padding: 18px 24px 16px;
    display: flex;
    flex-direction: column;
}
.overview-cards {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
    align-items: stretch;
    overflow: visible;
    padding-right: 0;
}

.project-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface-solid);
    padding: 24px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    cursor: pointer;
}
.project-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    border-color: var(--accent);
}
.project-card:active {
    transform: translateY(0);
}
.project-card-main {
    justify-content: space-between;
    min-height: 270px;
}
.card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-faint);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.card-top-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tag {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.6;
}
.tag-green {
    background: #dcfce7;
    color: #166534;
}
.tag-blue {
    background: #dbeafe;
    color: #1e40af;
}
.tag-purple {
    background: #f3e8ff;
    color: #6b21a8;
}
[data-theme="dark"] .tag-green {
    background: rgba(22, 101, 52, 0.3);
    color: #4ade80;
}
[data-theme="dark"] .tag-blue {
    background: rgba(30, 64, 175, 0.3);
    color: #60a5fa;
}
[data-theme="dark"] .tag-purple {
    background: rgba(107, 33, 168, 0.3);
    color: #c084fc;
}

.brand-highlight {
    color: #20A0A0;
    font-weight: 700;
}

.card-content h3 {
    margin: 0 0 10px;
    font-size: 1.6rem;
    color: var(--text);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.card-content p {
    margin: 0 0 16px;
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.6;
}
.compact-card .card-content h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}
.compact-card .card-content p {
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.card-tags span {
    background: var(--surface-soft);
    color: var(--text-faint);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
}

.card-stats {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}
.stat-item {
    display: flex;
    flex-direction: column;
}
.stat-item strong {
    font-size: 1.4rem;
    color: var(--text);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 6px;
}
.stat-item span {
    font-size: 0.75rem;
    color: var(--text-faint);
}

/* V18：项目总览右侧小滚动区——与主卡片同一基线、无内缩偏移，圆角裁切统一 */
.project-card-stack {
    position: relative;
    z-index: 1;
    height: 270px;
    min-height: 270px;
    min-width: 0;
    overflow: hidden;
    border-radius: 16px;
    background: transparent;
}
.project-card-stack:hover { z-index: 8; }
.project-card-stack .scroll-wrap {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    height: 100%;
    min-height: 0;
    box-sizing: border-box;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 7px 0 0;
    margin: 0;
    border-radius: 16px;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--text-faint) 72%, transparent) transparent;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar {
    width: 5px;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 999px;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--text-faint) 72%, transparent);
    border-radius: 999px;
    border: 1px solid transparent;
    background-clip: padding-box;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-thumb:hover {
    background: var(--text-soft);
}
.project-card-stack .compact-card {
    flex: 0 0 auto;
    width: 100%;
    box-sizing: border-box;
    margin: 0;
}
.scroll-indicator {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-faint);
    padding-top: 4px;
    gap: 4px;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
}
.scroll-indicator svg {
    animation: scroll-hint 2s ease-in-out infinite;
}
@keyframes scroll-hint {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(4px);
    }
}

.experience-strip {
    margin-top: 14px;
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.experience-label {
    display: inline-flex;
    align-items: flex-end;
    gap: 10px;
}
.experience-label h2 {
    margin: 0;
    color: var(--accent-dark);
    line-height: 1.2;
}
.experience-label .title-side-label {
    margin-bottom: 1px;
}
.experience-track {
    display: flex;
    position: relative;
    gap: 16px;
    padding-top: 28px;
}
.experience-track::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--line);
    border-radius: 2px;
}
.experience-item {
    position: relative;
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface-solid);
    transition: transform 0.2s ease, border-color 0.2s ease;
    cursor: default;
}
.experience-item:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
}
.experience-item::before {
    content: "";
    position: absolute;
    top: -26px;
    left: 50%;
    transform: translateX(-50%);
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--surface);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent);
}
.experience-item .year {
    color: var(--accent);
}
.experience-item.experience-current::before {
    background: #39e875;
    box-shadow: 0 0 0 2px rgba(57, 232, 117, .22), 0 0 14px rgba(57, 232, 117, .38);
}
.experience-item.experience-current .year {
    color: #20c968;
    font-size: 0.8rem;
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
}
.exp-content strong {
    display: block;
    font-size: 1.05rem;
    color: var(--text);
    margin-bottom: 4px;
    line-height: 1.2;
}
.exp-content p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-faint);
}
.exp-arrow {
    color: var(--text-faint);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-left: 8px;
}


.project-detail-section,
.skills-section {
    padding: 42px 0 60px;
}
.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
}
.section-heading p {
    max-width: 500px;
    color: var(--text-soft);
    font-size: 0.95rem;
    margin: 0;
    text-align: right;
    line-height: 1.5;
}

.detail-list {
    display: grid;
    gap: 20px;
}
.detail-card {
    display: flex;
    gap: 24px;
    padding: 32px;
    border-radius: var(--radius-xl);
    transition: transform 0.2s ease, border-color 0.2s ease;
    cursor: default;
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background: var(--surface-solid);
}
.detail-card::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background-image: var(--detail-bg-image, none);
    background-position: right center;
    /* 按图片宽度约束，保持 4:3 / 16:9 原始比例，避免 cover 带来的裁切 */
    background-size: min(44%, 560px) auto;
    background-repeat: no-repeat;
    transform: scale(1.005);
    opacity: .86;
    transition: transform .5s ease, opacity .5s ease;
}
.detail-card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--surface-solid) 96%, transparent) 0%,
            color-mix(in srgb, var(--surface-solid) 90%, transparent) 38%,
            color-mix(in srgb, var(--surface-solid) 70%, transparent) 68%,
            color-mix(in srgb, var(--surface-solid) 34%, transparent) 100%),
        linear-gradient(180deg,
            rgba(255,255,255,.04) 0%,
            color-mix(in srgb, var(--surface-solid) 72%, transparent) 74%,
            color-mix(in srgb, var(--surface-solid) 90%, transparent) 100%);
    pointer-events: none;
}
.detail-card:hover::before {
    transform: scale(1.035);
    transition: transform .5s ease;
}

[data-theme="dark"] .detail-card::after {
    background:
        linear-gradient(90deg,
            rgba(15,23,42,.94) 0%,
            rgba(15,23,42,.86) 38%,
            rgba(15,23,42,.66) 68%,
            rgba(15,23,42,.34) 100%),
        linear-gradient(180deg,
            rgba(15,23,42,.06) 0%,
            rgba(15,23,42,.66) 76%,
            rgba(15,23,42,.90) 100%);
}

.detail-card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}
.detail-index {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-faint);
    padding-top: 4px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}
.detail-content {
    flex: 1;
    min-width: 0;
    position: relative;
    z-index: 1;
}
.detail-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}
.detail-head h3 {
    margin: 12px 0 0;
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-dark);
    line-height: 1.2;
}
.detail-date {
    color: var(--text-faint);
    font-weight: 600;
    font-size: 0.9rem;
}
.detail-summary {
    color: var(--text-soft);
    font-size: 1rem;
    max-width: 800px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.capability {
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface-solid);
    transition: border-color 0.2s ease;
}
.capability:hover {
    border-color: var(--accent);
}
.capability span {
    display: block;
    color: var(--text-faint);
    font-size: 0.75rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}
.capability strong {
    display: block;
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.3;
}

.site-footer {
    padding: 40px 0;
    border-top: 1px solid var(--line);
    margin-top: 40px;
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-faint);
    font-size: 0.9rem;
    font-weight: 500;
    flex-wrap: wrap;
    gap: 8px 16px;
}
.footer-inner a:hover {
    color: var(--accent-dark);
}
.visitor-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-soft);
    font-weight: 500;
}
.visitor-count #visit-count {
    display: inline-block;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--accent-dark);
    min-width: 2em;
    text-align: center;
    transition: color 0.3s ease;
}
[data-theme="dark"] .visitor-count #visit-count {
    color: var(--accent);
}
.visitor-count .count-icon {
    font-size: 0.9rem;
    line-height: 1;
}

.hover-lift {
    transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}
.hover-lift:hover {
    transform: translateY(-2px);
    z-index: 2;
    border-color: var(--accent);
}
.hover-lift:active {
    transform: translateY(0);
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal-content {
    background: var(--surface-solid);
    width: 90%;
    max-width: 700px;
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
    transform: translateY(20px);
    transition: all 0.35s cubic-bezier(0.2, 0.9, 0.3, 1);
    max-height: 85vh;
    overflow-y: auto;
}
.modal-overlay.active .modal-content {
    transform: translateY(0);
}

/* V18：联系弹窗滚动条融入弹窗本体，不再像外接滑轨 */
.contact-modal-content {
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--text-faint) 58%, transparent) transparent;
    scrollbar-gutter: stable;
}
.contact-modal-content::-webkit-scrollbar {
    width: 6px;
}
.contact-modal-content::-webkit-scrollbar-track {
    background: transparent;
    margin: 14px 0;
    border-radius: 999px;
}
.contact-modal-content::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--text-faint) 58%, transparent);
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: padding-box;
}
.contact-modal-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-soft);
    background-clip: padding-box;
}
.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--surface-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-soft);
    font-size: 1.2rem;
    cursor: pointer;
    border: none;
    transition: background 0.2s ease;
}
.modal-close:hover {
    background: var(--line);
    color: var(--text);
}
.modal-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}
.modal-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-dark);
    margin: 0 0 8px 0;
    line-height: 1.2;
}
.modal-meta {
    color: var(--text-faint);
    font-size: 0.9rem;
    font-weight: 600;
}
.modal-body {
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.7;
}
.modal-body h4 {
    color: var(--text);
    font-size: 1.1rem;
    margin: 20px 0 10px 0;
    font-weight: 700;
}
.modal-body ul {
    padding-left: 20px;
    margin-bottom: 20px;
}
.modal-body li {
    margin-bottom: 8px;
}
.modal-body li strong {
    color: var(--text);
}

@media (max-width: 1100px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .profile-panel {
        padding: 24px;
    }
    .overview-cards {
        grid-template-columns: 1fr;
    }
    .project-card-stack,
    .scroll-wrap {
        height: auto;
        min-height: 0;
        overflow: visible;
    }
    .scroll-indicator {
        display: none;
    }
    .section-heading {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .section-heading p {
        text-align: left;
        max-width: 100%;
    }
    .experience-strip {
        margin-top: 24px;
    }
}

@media (max-width: 768px) {
    .nav-wrap {
        justify-content: space-between;
        gap: 16px;
    }
    .site-nav {
        display: none;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--surface-solid);
        border-bottom: 1px solid var(--line);
        padding: 16px 24px;
        gap: 12px;
        box-shadow: var(--shadow);
    }
    .site-nav.open {
        display: flex;
    }
    .site-nav a {
        padding: 8px 0;
        font-size: 1rem;
    }
    .site-nav a::after {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }

    .experience-track {
        flex-direction: column;
        padding-top: 0;
        padding-left: 28px;
        gap: 16px;
    }
    .experience-track::before {
        top: 0;
        bottom: 0;
        left: 7px;
        width: 2px;
        height: auto;
    }
    .experience-item::before {
        top: 50%;
        left: -27px;
        transform: translateY(-50%);
    }
    .honors-list { grid-template-columns: 1fr; }
    .exp-arrow {
        display: none;
    }

    .capability-grid { grid-template-columns: 1fr; }
    .skills-honors-grid { grid-template-columns: 1fr; }
    .detail-card {
        flex-direction: column;
        padding: 20px;
        gap: 12px;
    }
    .detail-index {
        padding-top: 0;
    }
    .card-stats {
        flex-direction: column;
        gap: 12px;
    }
    .project-card-main .card-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .modal-content {
        padding: 24px 18px;
    }
    .modal-title {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .container {
        width: min(calc(100% - 16px), var(--container));
    }
    .profile-panel {
        padding: 18px 14px;
    }
    .profile-head h1 {
        font-size: 1.8rem;
    }
    .project-overview {
        padding: 18px 14px;
    }
    .project-card {
        padding: 16px;
    }
    .compact-card {
        padding: 14px;
    }
    .card-content h3 {
        font-size: 1.3rem;
    }
    .compact-card .card-content h3 {
        font-size: 1rem;
    }
    .experience-strip {
        padding: 16px 14px;
    }
    .experience-item {
        padding: 14px;
    }
    .detail-card {
        padding: 16px 14px;
    }
    .detail-head h3 {
        font-size: 1.3rem;
    }
    .button {
        height: 40px;
        font-size: 0.85rem;
    }
}
.skills-section { padding: 56px 0 72px; }
.skills-honors-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.capability-panel, .honors-panel { background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-soft); border-radius: var(--radius-xl); padding: 24px; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.panel-heading h3 { margin: 4px 0 0; font-size: 1.35rem; color: var(--text); }
.panel-note { color: var(--text-faint); font-size: .75rem; white-space: nowrap; padding-top: 4px; }
.radar-wrap { display: flex; justify-content: center; padding: 4px 0 0; }
.radar-chart { width: min(100%, 390px); height: auto; overflow: visible; }
.radar-grid polygon { fill: none; stroke: var(--line); stroke-width: 1.4; }
.radar-axis line { stroke: var(--line); stroke-width: 1; }
.radar-value { fill: color-mix(in srgb, var(--accent) 18%, transparent); stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; transition: fill .25s ease, stroke .25s ease; }
.radar-dots circle { fill: var(--accent); stroke: var(--surface-solid); stroke-width: 3; transition: r .2s ease, fill .2s ease, filter .2s ease; }
.radar-labels text { fill: var(--text-soft); font-size: 13px; font-weight: 700; }
.radar-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 18px; padding: 4px 10px 0; }
.radar-legend span { display: flex; justify-content: space-between; color: var(--text-faint); font-size: .78rem; border-bottom: 1px dashed var(--line); padding-bottom: 4px; }
.radar-legend strong { color: var(--accent); font-variant-numeric: tabular-nums; }
.skill-data { display: none; }
.edit-hint { margin: 12px 0 0; color: var(--text-faint); font-size: .72rem; line-height: 1.5; }
.edit-hint code { padding: 2px 5px; border-radius: 5px; background: var(--surface-soft); color: var(--accent-dark); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.project-edit-hint { margin: -16px 0 18px; }
.honors-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 18px; }
.honor-card { min-width: 0; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 11px; padding: 13px 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-solid); }
.honor-card:hover { border-color: var(--accent); }
.honor-year { color: var(--accent); font-size: .72rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.honor-card strong { display: block; color: var(--text); font-size: .82rem; line-height: 1.25; }
.honor-card p { margin: 3px 0 0; color: var(--text-faint); font-size: .7rem; line-height: 1.35; }
.honor-arrow { color: var(--text-faint); font-size: .9rem; }
section[id] { scroll-margin-top: calc(var(--header-height) + 4px); }
.experience-item::before { background: var(--accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent); }
.experience-item .year { color: var(--accent); }
.experience-item.experience-current::before { background: #39e875; box-shadow: 0 0 0 2px rgba(57,232,117,.22), 0 0 14px rgba(57,232,117,.38); }
.experience-item.experience-current .year { color: #20c968; }
.experience-item.experience-current::before {
    background: #39e875;
    box-shadow: 0 0 0 2px rgba(57,232,117,.22), 0 0 14px rgba(57,232,117,.38);
}
.experience-item.experience-current .year { color: #20c968; }
@media (max-width: 1100px) { .skills-honors-grid { grid-template-columns: 1fr; } }
@media (max-width: 768px) { .radar-legend { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .capability-panel, .honors-panel { padding: 18px 14px; } .radar-labels text { font-size: 11px; } }

/* Radar interaction */
.radar-value {
    transform-box: fill-box;
    transform-origin: center;
    animation: radar-in .7s cubic-bezier(.2,.8,.2,1) both;
    transition: opacity .25s ease;
}
.radar-dots circle {
    transition: r .2s ease, fill .2s ease, filter .2s ease;
    cursor: pointer;
}
.radar-dots circle:hover, .radar-dots circle.is-active {
    r: 7px;
    fill: #39e875;
    filter: drop-shadow(0 0 7px rgba(57,232,117,.55));
}
.radar-highlight-lines line {
    stroke: transparent;
    stroke-width: 3.5;
    stroke-linecap: round;
    opacity: 0;
    transition: opacity .2s ease, stroke .2s ease;
    pointer-events: none;
}
.radar-highlight-lines line.is-active {
    stroke: #39e875;
    opacity: 1;
}
.radar-labels text {
    transition: fill .2s ease, font-size .2s ease;
    cursor: default;
}
.radar-labels text.is-active {
    fill: var(--text-soft);
}
.radar-legend span {
    transition: transform .2s ease, color .2s ease, border-color .2s ease;
    cursor: default;
}
.radar-legend span.is-active {
    transform: translateX(2px);
    color: var(--text-faint);
    border-color: var(--line);
}
.radar-legend span.is-active strong {
    color: var(--accent);
}
@keyframes radar-in {
    from { transform: scale(.82); opacity: .25; }
    to { transform: scale(1); opacity: 1; }
}
@media (max-width: 768px) {
    .section-title-row .title-wrap { gap: 8px; }
    .title-side-label { margin-bottom: 1px; }
    .section-title-row { align-items: flex-start; }
}

.context-collapsible {
    transition: opacity .22s ease, max-height .35s ease, margin .35s ease, transform .35s ease;
}
.context-collapsed {
    opacity: 0;
    max-height: 0 !important;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    overflow: hidden;
    transform: translateY(-8px);
    pointer-events: none;
}


/* V13 微调：保持 ABOUT ME 与右侧「项目总览 + 工作经历」底部齐平 */
.overview-grid {
    align-items: stretch;
}
.overview-grid > .reveal {
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.overview-grid > .reveal > .project-overview {
    flex: 0 0 auto;
}
.overview-grid > .reveal > .experience-strip {
    margin-top: 14px;
    flex: 1 0 auto;
}
.profile-panel {
    height: 100%;
}

/* 能力矩阵：详情文字只轻微放大，保持原有文字颜色；数值统一绿色 */
.radar-legend span {
    font-size: .82rem;
}
.radar-legend strong {
    color: #20c968;
    font-size: .92rem;
    font-weight: 750;
}
[data-theme="dark"] .radar-legend strong {
    color: #4ade80;
}

/* 图片较窄时让内容区域保持干净；图片本身仍按原比例显示 */
@media (max-width: 900px) {
    .detail-card::before {
        background-size: min(48%, 460px) auto;
    }
}

@media (max-width: 768px) {
    .overview-grid > .reveal {
        display: block;
    }
    .profile-panel {
        height: auto;
    }
    .detail-card::before {
        background-position: center top;
        background-size: 100% auto;
        opacity: .22;
    }
    .detail-card::after {
        background:
            linear-gradient(180deg,
                color-mix(in srgb, var(--surface-solid) 72%, transparent) 0%,
                color-mix(in srgb, var(--surface-solid) 92%, transparent) 34%,
                var(--surface-solid) 72%);
    }
    [data-theme="dark"] .detail-card::after {
        background:
            linear-gradient(180deg,
                rgba(15,23,42,.68) 0%,
                rgba(15,23,42,.88) 34%,
                rgba(15,23,42,.96) 72%);
    }
}

/* V14：HR 首页项目概览，减少信息噪声，把细节留给项目详情 */
.overview-value-line {
    margin: 2px 0 14px;
    color: var(--text-soft);
    font-size: .82rem;
    line-height: 1.5;
    font-weight: 600;
}
.overview-cta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    color: var(--accent-dark);
    font-size: .78rem;
    font-weight: 700;
}
.project-card-main .card-content p {
    max-width: 620px;
}
.compact-card .overview-value-line {
    margin-bottom: 8px;
    font-size: .76rem;
}
.compact-card .card-tags span {
    padding: 3px 8px;
    font-size: .68rem;
}

/* V14：能力矩阵——数字绿色；雷达动效/交互保持蓝色 */
.radar-legend strong {
    color: var(--accent);
    font-size: .92rem;
    font-weight: 750;
    transition: color .2s ease, transform .2s ease;
}
.radar-legend span {
    transition: transform .2s ease;
}
.radar-legend span.is-active {
    transform: scale(1.045);
}
.radar-legend span.is-active strong {
    color: #20c968;
}
[data-theme="dark"] .radar-legend span.is-active strong {
    color: #4ade80;
}
.radar-dots circle {
    transition: fill .2s ease, filter .2s ease;
}
.radar-dots circle:hover,
.radar-dots circle.is-active {
    fill: #20c968;
    filter: drop-shadow(0 0 7px rgba(32,201,104,.45));
}
.radar-highlight-lines line {
    transition: stroke .2s ease, opacity .2s ease;
}
.radar-highlight-lines line.is-active {
    stroke: #20c968;
}
.radar-labels text {
    transition: font-size .2s ease, font-weight .2s ease;
    transform-box: fill-box;
    transform-origin: center;
}
.radar-labels text.is-active {
    font-size: 15px;
    font-weight: 700;
}

/* V14：时间轴圆点向上修正 1px，视觉中心与横线对齐 */
.experience-item::before {
    top: -27px;
}

/* V14：顶栏联系我 */
.nav-contact {
    color: var(--accent-dark);
    font-size: .88rem;
    font-weight: 700;
    padding: 4px 0;
    position: relative;
}
.nav-contact::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform .25s ease;
}
.nav-contact:hover::after { transform: scaleX(1); }

/* V14：HR 反馈弹窗 */
.contact-modal-content {
    width: min(520px, calc(100vw - 32px));
    max-height: min(85vh, 680px);
    padding-right: 34px;
}
.contact-form {
    display: grid;
    gap: 18px;
}
.contact-form label > span,
.contact-form legend {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-size: .84rem;
    font-weight: 700;
}
.contact-form input[type="text"] {
    width: 100%;
    height: 44px;
    padding: 0 13px;
    border: 1px solid var(--line);
    border-radius: 11px;
    outline: none;
    background: var(--surface-solid);
    color: var(--text);
    transition: border-color .2s ease, box-shadow .2s ease;
}
.contact-form input[type="text"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}
.choice-row {
    display: flex;
    gap: 10px;
}
.choice-row-short {
    max-width: 230px;
}
.choice-option {
    flex: 1;
    display: flex !important;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 42px;
    padding: 8px 12px;
    margin: 0 !important;
    border: 1px solid var(--line);
    border-radius: 11px;
    cursor: pointer;
    color: var(--text-soft);
    transition: border-color .2s ease, background .2s ease, color .2s ease, transform .2s ease;
}
.choice-option:hover {
    border-color: var(--accent);
    background: var(--surface-soft);
}
.choice-option:has(input:checked) {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, var(--surface-solid));
    color: var(--accent-dark);
}
.choice-option input {
    margin: 0;
    accent-color: var(--accent);
}
.choice-option span {
    margin: 0 !important;
    font-size: .82rem !important;
    font-weight: 650 !important;
    color: inherit !important;
}

.contact-form fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}
.rating-option {
    display: grid;
    grid-template-columns: 18px 1fr;
    gap: 10px;
    align-items: start;
    padding: 12px;
    margin-top: 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease;
}
.rating-option:hover {
    border-color: var(--accent);
    background: var(--surface-soft);
}
.rating-option input { margin-top: 3px; accent-color: var(--accent); }
.rating-option strong { display: block; color: var(--text); font-size: .84rem; }
.rating-option small { display: block; margin-top: 2px; color: var(--text-faint); font-size: .72rem; line-height: 1.45; }
.contact-privacy-note {
    margin: -4px 0 0;
    color: var(--text-faint);
    font-size: .7rem;
    line-height: 1.5;
}
.contact-submit { width: 100%; justify-content: center; }
.contact-status {
    min-height: 18px;
    margin: -8px 0 0;
    color: var(--text-faint);
    text-align: center;
    font-size: .76rem;
}
.contact-status.is-success { color: #20c968; }
.contact-status.is-error { color: #dc2626; }

@media (max-width: 900px) {
    .site-nav { gap: 18px; }
    .nav-contact { font-size: .84rem; }
}
@media (max-width: 768px) {
    .nav-contact { display: none; }
    .project-card-main { min-height: 250px; }
}

/* V19：项目总览右侧滚动区与主卡片严格同高；滚动内容不做位移缩放，避免悬停时顶部被裁切 */
.overview-cards {
    align-items: stretch;
}
.project-card-stack {
    height: auto;
    min-height: 0;
    align-self: stretch;
    display: flex;
    overflow: hidden;
}
.project-card-stack .scroll-wrap {
    flex: 1 1 auto;
    height: auto;
    min-height: 0;
    align-self: stretch;
}
.project-card-stack .compact-card,
.project-card-stack .compact-card:hover,
.project-card-stack .compact-card:active {
    transform: none;
}
.project-card-stack .compact-card:hover {
    box-shadow: none;
    border-color: var(--accent);
}

/* V19：恢复「联系我」的轻突出效果，明显但不突兀 */
.nav-contact {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--accent-dark);
    padding: 7px 12px;
    border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
    border-radius: 10px;
    background: color-mix(in srgb, var(--accent) 7%, var(--surface-solid));
    box-shadow: 0 2px 10px color-mix(in srgb, var(--accent) 10%, transparent);
    transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.nav-contact::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
    flex: 0 0 auto;
}
.nav-contact::after {
    display: none;
}
.nav-contact:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--accent) 62%, var(--line));
    background: color-mix(in srgb, var(--accent) 11%, var(--surface-solid));
    box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 16%, transparent);
}

/* V20：恢复项目总览右侧原生滚动能力；高度锁定到主卡片实际行高 */
.overview-cards {
    align-items: stretch;
}
.overview-cards > .project-card-main,
.overview-cards > .project-card-stack {
    height: 100%;
    min-height: 270px;
    box-sizing: border-box;
}
.project-card-stack {
    position: relative;
    align-self: stretch;
    min-width: 0;
    overflow: hidden;
}
.project-card-stack .scroll-wrap {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    height: 100%;
    min-height: 0;
    max-height: 100%;
    box-sizing: border-box;
    overflow-y: scroll;
    overflow-x: hidden;
    padding: 0 7px 0 0;
    margin: 0;
    border-radius: 16px;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--text-faint) 72%, transparent) transparent;
    scrollbar-gutter: stable;
    overscroll-behavior: contain;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar {
    width: 5px;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-track {
    background: color-mix(in srgb, var(--line) 35%, transparent);
    border-radius: 999px;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--text-faint) 72%, transparent);
    border-radius: 999px;
    border: 1px solid transparent;
    background-clip: padding-box;
}
.project-card-stack .scroll-wrap::-webkit-scrollbar-thumb:hover {
    background: var(--text-soft);
}
/* 滚动容器本身不做位移，避免鼠标移入时顶部内容被裁切 */
.project-card-stack .compact-card,
.project-card-stack .compact-card:hover,
.project-card-stack .compact-card:active {
    transform: none;
}