:root {
    --bg: #060608;
    --surface: rgba(255, 255, 255, 0.04);
    --glass: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --accent-secondary: #c9a84c;
    --text-primary: #f0ece4;
    --text-muted: #6a6560;
    --text-dim: #3a3835;
    --radius: 16px;
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--text-dim) transparent;
}

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    cursor: default;
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

#scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    z-index: 100000;
    transition: width 0.05s linear;
    box-shadow: 0 0 10px var(--accent), 0 0 4px var(--accent);
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 10000;
}

.card-doc-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 4;
}
.card-doc-badge svg {
    width: 12px;
    height: 12px;
    fill: none;
    stroke: var(--accent-secondary);
    stroke-width: 2;
}

.card-badges {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
    z-index: 4;
    pointer-events: none;
}
.card-badges .card-doc-badge,
.card-badges .card-video-badge {
    position: static;
}

.project-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}
.card-inner-glow {
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 2;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 212, 255, 0.08) 0%, transparent 60%);
}
.project-card:hover .card-inner-glow {
    opacity: 1;
}
.detail-hero-img {
    animation: imgReveal 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

.skill-item {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.3s ease, background 0.3s ease;
}
.skill-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.counter-num {
    position: relative;
}

#particles {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.5s ease, backdrop-filter 0.5s ease, padding 0.4s ease;
    will-change: background, backdrop-filter, padding;
}
nav.scrolled {
    background: rgba(6, 6, 8, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--glass-border);
    padding: 16px 48px;
}
.nav-logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 20px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-primary);
    text-decoration: none;
}
.nav-logo span {
    color: var(--accent);
}
.nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
}
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
    padding-bottom: 4px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
.nav-links a:hover {
    color: var(--text-primary);
}
.nav-links a:hover::after {
    width: 100%;
}
.magnetic-link {
    color: var(--accent) !important;
    border: 1px solid var(--accent);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 10px !important;
    letter-spacing: 1px !important;
    transition: transform 0.2s ease, background 0.3s ease, color 0.3s ease !important;
    position: relative;
}
.magnetic-link::after {
    display: none !important;
}
.magnetic-link:hover {
    background: var(--accent);
    color: var(--bg) !important;
    transform: scale(1.05);
}
.clock-greeting {
    font-family: var(--font-body);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
}
.clock-time {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
}

.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    z-index: 2;
}
.hero-bg {
    position: absolute;
    inset: -60px;
    background: none center/cover no-repeat;
    filter: brightness(0.4) saturate(0.85);
    transition: transform 0.1s ease-out;
    will-change: transform;
}
.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, var(--bg) 100%), radial-gradient(ellipse at 15% 85%, rgba(0, 212, 255, 0.06) 0%, transparent 55%), radial-gradient(ellipse at 85% 15%, rgba(201, 168, 76, 0.04) 0%, transparent 50%);
}
.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 10%;
    max-width: 900px;
}
.hero-tag {
    font-family: var(--font-body);
    font-size: 11px;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 28px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) 0.2s forwards;
}
.hero-name {
    font-family: var(--font-display);
    font-size: clamp(52px, 9vw, 110px);
    font-weight: 800;
    letter-spacing: -3px;
    line-height: 0.95;
    margin-bottom: 0;
    position: relative;
    display: inline-block;
}

.hero-name-wrapper {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 28px;
}
.hero-clock {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}
.hero-clock .clock-greeting {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 2px;
}
.hero-clock .clock-time {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 2px;
}
.hero-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 2;
    max-width: 480px;
    opacity: 0;
    transform: translateY(20px);
}
.hero-desc.show {
    animation: fadeUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
}
.hero-scroll.show {
    animation: fadeUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}
.hero-scroll span {
    font-size: 10px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-dim);
}
.scroll-line {
    width: 1px;
    height: 48px;
    position: relative;
    overflow: hidden;
}
.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--accent), transparent);
    animation: scrollPulse 2s ease infinite;
}
@keyframes scrollPulse {
    0% { top: -100%; }
    100% { top: 100%; }
}
@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

.section {
    padding: 120px 12%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}
.section-header {
    display: flex;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 64px;
}
.section-number {
    font-family: var(--font-display);
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 2px;
    opacity: 0.7;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    letter-spacing: -1px;
}
.section-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--glass-border), transparent);
}

.marquee-wrap {
    overflow: hidden;
    padding: 40px 0;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    z-index: 2;
}
.marquee-track {
    display: flex;
    gap: 60px;
    animation: marqueeScroll 20s linear infinite;
    white-space: nowrap;
}
.marquee-item {
    font-family: var(--font-display);
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
    flex-shrink: 0;
}
.marquee-item .dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    margin: 0 30px;
    vertical-align: middle;
    opacity: 0.5;
}
@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 28px;
}
.project-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--glass-border);
    background: var(--surface);
    opacity: 0;
    transform: translateY(50px);
    transition: border-color 0.4s ease, box-shadow 0.6s ease;
}
.project-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.9s cubic-bezier(0.23, 1, 0.32, 1), transform 0.9s cubic-bezier(0.23, 1, 0.32, 1), border-color 0.4s ease, box-shadow 0.6s ease;
}
.project-card:hover {
    border-color: rgba(0, 212, 255, 0.25);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), 0 0 60px rgba(0, 212, 255, 0.06);
}
.project-card:active {
    transform: scale(0.97) !important;
    transition: transform 0.1s ease;
}

.card-img-wrap {
    position: relative;
    overflow: hidden;
    height: 300px;
    background: linear-gradient(135deg, rgba(0,212,255,0.03) 0%, rgba(255,255,255,0.02) 100%);
}
.card-img-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
    animation: shimmer 1.5s infinite;
    z-index: 1;
}
.card-img-wrap:has(.loaded)::before { display: none; }
@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}
.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    filter: blur(12px);
    transform: scale(1.05);
    transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease;
}
.card-img.loaded { opacity: 1; filter: blur(0); transform: scale(1); }
.project-card:hover .card-img {
    transform: scale(1.08);
    filter: brightness(0.6);
}
.card-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(6, 6, 8, 0.9) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
}
.project-card:hover .card-img-overlay {
    opacity: 1;
}

.card-video-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
    z-index: 4;
}
.card-video-badge svg {
    width: 12px;
    height: 12px;
    fill: var(--accent);
}
.card-info {
    padding: 28px 28px 24px;
    position: relative;
}
.card-category {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    opacity: 0.8;
}
.card-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}
.card-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s ease 0.05s, transform 0.4s ease 0.05s;
}
.project-card:hover .card-cta {
    opacity: 1;
    transform: translateY(0);
}
.card-cta .arrow {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}
.project-card:hover .card-cta .arrow {
    transform: translateX(6px);
}

.more-projects-wrap {
    text-align: center;
    margin-top: 48px;
}
.more-projects-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    background: var(--glass);
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
.more-projects-btn:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-3px);
}
.more-projects-btn .arrow {
    transition: transform 0.3s ease;
}
.more-projects-btn:hover .arrow {
    transform: translateX(4px);
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 48px;
}
.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    background: var(--surface);
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
}
.filter-btn.active,
.filter-btn:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--accent);
}

.detail-overlay {
    position: fixed;
    inset: 0;
    background: rgba(6, 6, 8, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 5000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    overflow-y: auto;
}
.detail-overlay.show {
    opacity: 1;
    pointer-events: auto;
}
.detail-close {
    position: fixed;
    top: 32px;
    right: 40px;
    z-index: 5010;
    width: 50px;
    height: 50px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: var(--glass);
    color: var(--text-primary);
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
    line-height: 1;
}
.detail-close:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: rotate(90deg);
}
.detail-content {
    max-width: 920px;
    margin: 0 auto;
    padding: 100px 40px 100px;
}
.detail-hero-img {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 48px;
    border: 1px solid var(--glass-border);
}
.detail-category {
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
}
.detail-title {
    font-family: var(--font-display);
    font-size: clamp(30px, 5vw, 48px);
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -1px;
    line-height: 1.1;
}
.detail-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 2;
    margin-bottom: 48px;
    white-space: pre-line;
}
.detail-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0;
    margin-bottom: 48px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--surface);
    overflow: hidden;
}
.meta-item {
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-right: 1px solid var(--glass-border);
}
.meta-item:last-child {
    border-right: none;
}
.meta-label {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
}
.meta-value {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}
.detail-video-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: var(--glass);
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 13px;
    letter-spacing: 1px;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
    margin-bottom: 48px;
}
.detail-video-link:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}
.detail-video-link svg {
    width: 20px;
    height: 20px;
    fill: var(--accent);
    flex-shrink: 0;
}
.detail-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-bottom: 48px;
}
.detail-gallery img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), border-color 0.3s ease, box-shadow 0.4s ease;
}
.detail-gallery img:hover {
    transform: scale(1.02);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.detail-doc-section {
    padding: 32px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--surface);
}
.detail-doc-section h3 {
    font-family: var(--font-display);
    font-size: 18px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.detail-doc-section h3::before {
    content: '';
    width: 3px;
    height: 20px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}
.doc-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.doc-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 22px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: var(--glass);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 12px;
    font-family: var(--font-body);
    letter-spacing: 1px;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
.doc-link:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-2px);
}
.doc-icon {
    width: 18px;
    height: 18px;
    opacity: 0.6;
}

#lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.96);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
#lightbox.show {
    opacity: 1;
    pointer-events: auto;
}
#lbImg {
    max-width: 88%;
    max-height: 88%;
    transform: scale(0.92);
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    border-radius: 12px;
}
#lightbox.show #lbImg {
    transform: scale(1);
}
.lb-close {
    position: absolute;
    top: 32px;
    right: 40px;
    width: 50px;
    height: 50px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    color: white;
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s ease, transform 0.3s ease;
    line-height: 1;
}
.lb-close:hover {
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(90deg);
}
.lb-nav {
    position: absolute;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 32px;
    pointer-events: none;
}
.lb-nav button {
    pointer-events: auto;
    width: 54px;
    height: 54px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: border-color 0.3s ease, transform 0.3s ease;
    line-height: 1;
}
.lb-nav button:hover {
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}
.lb-counter {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 3px;
}

/* 详情弹窗项目导航 */
.detail-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
}
.detail-nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: var(--glass);
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 12px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease;
    flex: 1;
}
.detail-nav-btn:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    color: var(--text-primary);
}
.detail-nav-btn.next {
    text-align: right;
    justify-content: flex-end;
}
.detail-nav-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 4px;
    color: var(--text-dim);
}
.detail-nav-title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}
.about-text p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 2.2;
    margin-bottom: 24px;
}
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.skill-item {
    padding: 18px 22px;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    background: var(--surface);
    font-size: 12px;
    letter-spacing: 1px;
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}
.skill-item:hover {
    border-color: rgba(0, 212, 255, 0.25);
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.counter-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
}
.counter-item {
    padding: 28px 20px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--surface);
    text-align: center;
}
.counter-num {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 8px;
}
.counter-label {
    font-size: 11px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-dim);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 28px;
    margin-top: 48px;
    max-width: 900px;
}
.contact-card {
    padding: 32px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--surface);
    transition: border-color 0.3s ease, background 0.3s ease, transform 0.4s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}
.contact-card:hover {
    border-color: rgba(0, 212, 255, 0.25);
    background: var(--accent-glow);
    transform: translateY(-4px);
}
.email-form-section {
    margin-top: 60px;
    padding: 40px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    background: var(--surface);
}
.email-form-section input,
.email-form-section textarea {
    font-family: var(--font-body);
}
.email-form-section input:focus,
.email-form-section textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}
.email-form-section button:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent);
    transform: translateY(-2px);
}
.contact-card-label {
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 14px;
}
.contact-card-value {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
}
.contact-card-icon {
    margin-bottom: 16px;
    opacity: 0.5;
}
.contact-card-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 1.5;
}
.contact-photo {
    margin-top: 60px;
    text-align: center;
}
.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--glass-border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1), border-color 0.3s ease;
}
.profile-photo:hover {
    transform: scale(1.05);
    border-color: var(--accent);
}
.photo-caption {
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

footer {
    padding: 48px 10%;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
    position: relative;
    z-index: 2;
}
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s cubic-bezier(0.23, 1, 0.32, 1), transform 0.9s cubic-bezier(0.23, 1, 0.32, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.back-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    background: var(--glass);
    backdrop-filter: blur(12px);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.3s ease, color 0.3s ease;
    pointer-events: none;
}
.back-top.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.back-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-name, .hero-tag, .hero-desc {
    text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

@media (max-width:768px) {
    nav { padding: 16px 20px; } nav.scrolled { padding: 12px 20px; }
    .nav-links { gap: 16px; } .nav-links a { font-size: 10px; letter-spacing: 1px; }
    .section { padding: 80px 6%; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .projects-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .email-form-section { padding: 20px; margin-top: 40px; }
    .email-form-section div { grid-template-columns: 1fr !important; }
    .profile-photo { width: 150px; height: 150px; }
    .counter-grid { grid-template-columns: 1fr 1fr; }
    .detail-content { padding: 80px 20px 60px; }
    .detail-meta { grid-template-columns: 1fr 1fr; }
    .meta-item { border-bottom: 1px solid var(--glass-border); }
    .meta-item:nth-child(2) { border-right: none; }
    footer { flex-direction: column; gap: 12px; text-align: center; }
    .cursor-dot, .cursor-ring { display: none; }
    .nav-clock { display: none; }
    .hero-name { letter-spacing: -1px; }
    .card-badges { flex-direction: row; gap: 8px; }
    .detail-nav { flex-direction: column; }
}
@media (max-width:480px) {
    .detail-meta { grid-template-columns: 1fr; }
    .meta-item { border-right: none; }
    .project-card .card-img-wrap { height: 220px; }
    .counter-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
}

/* Responsive, accessible presentation and progressive enhancement. */
:root {
    --text-muted: #a5a4a1;
    --text-dim: #8b8d91;
    --font-display: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    --font-body: 'Cascadia Mono', Consolas, 'Microsoft YaHei', monospace;
}
html { scroll-padding-top: 100px; scrollbar-gutter: stable; }
body { line-height: 1.5; }
button, input, textarea { font: inherit; }
button { touch-action: manipulation; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
body::after { z-index: 3; opacity: .018; }
.skip-link {
    position: fixed;
    left: 20px;
    top: -100px;
    z-index: 100001;
    padding: 12px 20px;
    background: var(--accent);
    color: var(--bg);
    border-radius: 6px;
}
.skip-link:focus { top: 16px; }
#scrollProgress { width: 100%; transform: scaleX(0); transform-origin: left; transition: none; }
nav { padding: 24px 5%; }
nav.scrolled { padding: 16px 5%; }
.nav-links { align-items: center; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; }
.nav-links a[aria-current] { color: var(--accent); }
.nav-links a[aria-current]::after { width: 100%; }
.menu-toggle { display: none; }
.hero { height: 100svh; min-height: 640px; max-height: 1200px; }
.hero-bg {
    inset: -18px;
    background: none;
    filter: none;
    transition: transform .35s ease-out;
}
.hero-bg img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center; }
.hero-gradient {
    background: linear-gradient(90deg, rgba(6,6,8,.8), rgba(6,6,8,.3) 70%),
        linear-gradient(0deg, var(--bg), transparent 55%, rgba(6,6,8,.3));
}
.hero-content { max-width: 1100px; width: 100%; padding: 0 10%; }
.hero-name { font-size: clamp(72px, 10vw, 140px); letter-spacing: -.05em; line-height: 1.1; }
.hero-name-wrapper { align-items: center; gap: 40px; margin-bottom: 30px; }
.hero-clock { border-left: 1px solid rgba(255,255,255,.25); padding-left: 24px; }
.hero-clock .clock-greeting { font-size: 11px; letter-spacing: 1px; color: #c1c1bc; }
.hero-clock .clock-time { font-variant-numeric: tabular-nums; font-size: 22px; }
.hero-tag { opacity: 1; transform: none; animation: none; letter-spacing: 4px; }
.hero-desc { opacity: 1; transform: none; color: #c8c9c6; max-width: 460px; line-height: 2.1; }
.hero-action {
    position: absolute;
    left: 10%;
    bottom: 88px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 32px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,.4);
    font-size: 13px;
    text-decoration: none;
    color: var(--text-primary);
    transition: color .2s, border-color .2s;
}
.hero-action:hover { color: var(--accent); border-color: var(--accent); }
.hero-scroll { opacity: 1; }
.hero-scroll span { color: #a4a6a8; }
.section { padding: 100px 7%; max-width: 1520px; }
.section-header { margin-bottom: 44px; }
.projects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.project-card {
    display: block;
    width: 100%;
    min-width: 0;
    padding: 0;
    text-align: left;
    color: inherit;
    font: inherit;
    opacity: 1;
    transform: none;
    perspective: none;
    transform-style: flat;
    transition: transform .45s ease, opacity .6s ease, border-color .3s ease, box-shadow .4s ease;
}
#projectsGrid .project-card:first-child { grid-column: 1 / -1; }
#projectsGrid .project-card:first-child .card-img-wrap { aspect-ratio: 2.25; }
.card-img-wrap { display: block; height: auto; aspect-ratio: 16 / 10; }
.card-img { opacity: 1; filter: none; transform: none; }
.card-img.loaded { transform: none; }
.card-img-wrap::before { display: none; }
.card-info, .card-category, .card-title { display: block; }
.card-info { padding: 26px 28px; }
.card-title { font-size: 24px; }
.card-desc { max-width: 64ch; line-height: 1.9; }
.card-cta { opacity: 1; transform: none; }
.project-card:focus-visible { outline-offset: 5px; border-color: var(--accent); }
.project-card:focus-visible .card-img { transform: scale(1.04); }
.project-card:focus-visible .card-cta { color: var(--text-primary); }
.project-card:hover .card-img { transform: scale(1.035); filter: none; }
.project-card:hover { transform: translateY(-4px); }
.reveal, .skill-item { opacity: 1; transform: none; }
.will-reveal { opacity: 0; transform: translateY(22px); }
.filter-bar { margin-bottom: 16px; gap: 10px; }
.filter-btn { min-height: 44px; padding: 10px 22px; }
.results-count { color: var(--text-dim); font-size: 11px; margin-bottom: 28px; letter-spacing: 1px; }
.skills-grid { align-content: start; }
.skill-item { min-width: 0; overflow-wrap: anywhere; }
.contact-grid { max-width: none; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.copy-button {
    display: inline-flex;
    padding: 10px 0;
    margin: 12px 18px 0 0;
    min-height: 44px;
    border: 0;
    background: none;
    color: var(--accent);
    font-size: 12px;
    cursor: pointer;
}
.copy-button:hover { text-decoration: underline; text-underline-offset: 4px; }
#contactForm { max-width: 680px; }
#contactForm label { display: block; font-size: 12px; color: var(--text-muted); margin-bottom: 10px; }
#contactForm input, #contactForm textarea {
    display: block;
    width: 100%;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(255,255,255,.035);
    padding: 14px 16px;
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 24px;
}
#contactForm textarea { min-height: 180px; resize: vertical; }
#contactForm :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
#contactForm input::placeholder, #contactForm textarea::placeholder { color: #8b8d91; }
.form-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.send-button {
    display: inline-flex; align-items: center; justify-content: space-between; gap: 40px;
    padding: 15px 28px; min-height: 50px; border: 1px solid rgba(0,212,255,.4);
    background: var(--accent-glow); border-radius: 8px; color: var(--accent); cursor: pointer;
}
button:disabled { opacity: .5; cursor: wait; }
.status-message { min-height: 1.8em; color: var(--text-muted); font-size: 13px; line-height: 1.8; margin-top: 18px; overflow-wrap: anywhere; }
.form-help { color: var(--text-muted); font-size: 12px; line-height: 1.8; margin-top: 8px; }
.form-help a { color: var(--accent); text-underline-offset: 4px; }
.toast {
    position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
    width: max-content; max-width: calc(100% - 40px); padding: 14px 22px; border-radius: 10px;
    border: 1px solid rgba(0,212,255,.4); background: #10252b; color: #cceff4;
    box-shadow: 0 10px 40px #0006; z-index: 100001; font-size: 13px; overflow-wrap: anywhere;
}
.clipboard-fallback { position: fixed; top: 0; left: -9999px; }
body.modal-open { position: fixed; width: 100%; overflow: hidden; }
.detail-overlay { overscroll-behavior: contain; scrollbar-gutter: stable; }
.detail-content { max-width: 1040px; }
.detail-close, .lb-close { background: #12171d; }
.detail-close { position: sticky; float: right; top: 22px; margin: 22px 24px 0 0; }
.gallery-trigger { display: block; border: 0; background: none; color: inherit; cursor: zoom-in; padding: 0; position: relative; width: 100%; }
.hero-trigger { margin-bottom: 40px; }
.detail-hero-img { display: block; height: auto; margin: 0; animation: none; }
.image-hint { position: absolute; bottom: 16px; right: 16px; background: #060608cc; border: 1px solid var(--glass-border); border-radius: 20px; padding: 7px 12px; font-size: 11px; }
.detail-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
.detail-gallery img { display: block; height: auto; }
.gallery-item { margin: 0; min-width: 0; }
.gallery-item figcaption { margin-top: 10px; color: var(--text-muted); font-size: 12px; line-height: 1.8; overflow-wrap: anywhere; }
.detail-nav-btn { min-width: 0; flex: 1; }
.detail-nav-title { overflow-wrap: anywhere; }
.detail-nav-label, .detail-nav-title { display: block; }
.doc-link { overflow-wrap: anywhere; }
.doc-type { font-size: 9px; color: var(--text-dim); }
#lbImg { object-fit: contain; max-height: calc(100svh - 160px); max-width: 88vw; }
.lb-nav { z-index: 2; }
.lb-nav button { background: #111a22dd; }
.lb-nav button:disabled { opacity: .25; cursor: default; }
.lb-counter { bottom: 28px; }
.original-image { position: absolute; bottom: 28px; right: 30px; color: var(--accent); font-size: 12px; text-decoration: none; padding: 8px; }
.image-status { position: absolute; bottom: 80px; font-size: 12px; color: #ddd; background: #060608bb; border-radius: 8px; padding: 4px 10px; }
.image-status:empty { display: none; }
.image-error { min-height: 120px; color: var(--text-muted); background: #16191f; }

@media (max-width: 768px) {
    nav, nav.scrolled { padding: 12px 6%; background: rgba(6,6,8,.9); backdrop-filter: blur(16px); }
    .nav-logo { font-size: 18px; min-height: 44px; display: flex; align-items: center; }
    .menu-toggle { display: inline-flex; align-items: center; gap: 20px; border: 1px solid var(--glass-border); border-radius: 6px; padding: 10px 14px; min-height: 44px; background: var(--surface); color: var(--text-primary); font-size: 12px; cursor: pointer; }
    .menu-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; padding: 12px 6% 24px; background: #0b0d11; border-bottom: 1px solid var(--glass-border); }
    .nav-links.open { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
    .nav-links a { width: 100%; font-size: 13px; padding: 10px 14px; }
    .magnetic-link { border-radius: 6px; }
    .hero { min-height: 620px; max-height: 1000px; }
    .hero-content { padding: 0 7%; }
    .hero-name { font-size: clamp(64px, 15vw, 104px); }
    .hero-name-wrapper { gap: 24px; }
    .hero-clock { padding-left: 20px; }
    .hero-clock .clock-time { font-size: 19px; }
    .hero-clock .clock-greeting { font-size: 10px; letter-spacing: 0; }
    .hero-tag { font-size: 10px; letter-spacing: 3px; }
    .hero-desc { font-size: 13px; max-width: 360px; }
    .hero-action { left: 7%; bottom: 54px; }
    .hero-scroll { display: none; }
    .section { padding: 72px 6%; }
    .section-header { margin-bottom: 32px; gap: 12px; }
    .section-title { font-size: clamp(24px, 6vw, 36px); }
    .projects-grid { grid-template-columns: minmax(0, 1fr); gap: 22px; }
    #projectsGrid .project-card:first-child { grid-column: auto; }
    #projectsGrid .project-card:first-child .card-img-wrap, .project-card .card-img-wrap { height: auto; aspect-ratio: 16 / 10; }
    .card-info { padding: 22px; }
    .card-title { font-size: 22px; }
    .filter-bar { gap: 8px; }
    .filter-btn { font-size: 11px; letter-spacing: .5px; padding: 10px 14px; }
    .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; }
    .contact-card { padding: 26px; }
    .counter-item { padding: 24px 12px; }
    .counter-num { font-size: 30px; }
    .counter-label { letter-spacing: 1px; }
    .detail-content { padding: 90px 20px 50px; }
    .detail-close { top: 14px; margin: 14px 16px 0 0; }
    .detail-gallery { grid-template-columns: minmax(0, 1fr); }
    .detail-doc-section { padding: 22px; }
    .lb-close { top: 16px; right: 16px; }
    .lb-nav { padding: 0 12px; }
    .lb-nav button { width: 44px; height: 44px; }
    .original-image { right: 12px; bottom: 22px; font-size: 11px; }
    .lb-counter { left: 24px; transform: none; bottom: 30px; }
    .back-top { right: 18px; bottom: 18px; }
}
@media (max-width: 380px) {
    .hero-name-wrapper { align-items: flex-start; flex-direction: column; gap: 24px; }
    .hero-clock { padding-left: 0; border-left: 0; }
    .hero-tag { letter-spacing: 2px; }
    .hero { min-height: 680px; }
    .hero-desc { font-size: 12px; }
}
@media (hover: none) {
    .project-card:hover, .project-card:hover .card-img { transform: none; }
    .card-img-overlay { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .will-reveal { opacity: 1; transform: none; }
    #particles { display: none; }
    .hero-bg { transform: none !important; }
    .marquee-track { transform: none; }
}