:root {
  --slate-950: #020617;
  --slate-925: #08111f;
  --slate-900: #0f172a;
  --slate-850: #131d33;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --white: #ffffff;
  --purple: #9333ea;
  --purple-soft: #c084fc;
  --indigo: #4f46e5;
  --indigo-soft: #818cf8;
  --green: #22c55e;
  --max: 1152px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--slate-950);
  color: var(--slate-200);
  font-family:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

::selection {
  background: rgba(168, 85, 247, 0.3);
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(2, 6, 23, 0.8);
  backdrop-filter: blur(16px);
}

.nav-inner {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  background: linear-gradient(90deg, var(--purple-soft), var(--indigo-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.nav-links {
  display: flex;
  gap: 32px;
  color: var(--slate-300);
  font-size: 14px;
  font-weight: 600;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--purple-soft);
}

.hero-section {
  position: relative;
  overflow: hidden;
  padding: 96px 24px 80px;
}

.glow {
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(120px);
}

.glow-hero {
  top: 50%;
  left: 50%;
  width: 800px;
  height: 800px;
  transform: translate(-50%, -50%);
  background: rgba(147, 51, 234, 0.2);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(var(--max), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: 48px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin-bottom: 24px;
  padding: 0 16px;
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: 999px;
  background: rgba(168, 85, 247, 0.1);
  color: #d8b4fe;
  font-size: 14px;
  font-weight: 650;
}

.hero-copy h1 {
  margin: 0 0 10px;
  color: var(--white);
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy h2 {
  margin: 0 0 24px;
  color: var(--slate-400);
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 300;
}

.quote {
  margin: 0 0 26px;
  padding: 4px 0 4px 16px;
  border-left: 4px solid var(--purple);
  color: #e9d5ff;
  font-size: clamp(19px, 2.2vw, 24px);
  font-style: italic;
}

.intro {
  max-width: 680px;
  margin: 0 0 36px;
  color: var(--slate-300);
  font-size: 18px;
}

.hero-actions,
.contact-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.primary-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  border-radius: 999px;
  font-weight: 650;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-btn {
  background: linear-gradient(90deg, #7c3aed, #4f46e5);
  color: var(--white);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.3);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(124, 58, 237, 0.5);
}

.ghost-btn {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.ghost-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.hero-card {
  position: relative;
  height: 500px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  background: linear-gradient(135deg, var(--slate-900), #1e1b4b);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.42);
}

.hero-card img {
  opacity: 0.58;
  mix-blend-mode: screen;
  transition: transform 700ms ease;
}

.hero-card:hover img {
  transform: scale(1.06);
}

.hero-card-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.18));
}

.hero-card-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 32px;
}

.hero-card-text strong {
  color: var(--white);
  font-size: 34px;
  line-height: 1.15;
}

.hero-card-text span {
  color: #c7d2fe;
  font-size: 16px;
}

.section {
  padding: 96px 24px;
}

.about-section,
.portfolio-section {
  background: rgba(15, 23, 42, 0.5);
}

.section-title,
.portfolio-head {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.section-title.center {
  width: min(896px, 100%);
}

.icon-dot {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background:
    radial-gradient(circle at 36% 36%, #f5d0fe, transparent 22%),
    linear-gradient(135deg, var(--purple), var(--indigo));
  box-shadow: 0 0 28px rgba(147, 51, 234, 0.38);
}

.section-title h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(28px, 4vw, 34px);
  line-height: 1.15;
}

.about-grid {
  width: min(var(--max), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.45fr) minmax(260px, 0.88fr);
  align-items: start;
  gap: 32px;
}

.about-photo {
  position: sticky;
  top: 92px;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: var(--slate-900);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.32);
}

.about-photo img {
  aspect-ratio: 4 / 5.2;
  object-position: center 22%;
}

.about-photo figcaption {
  display: grid;
  gap: 2px;
  padding: 18px 20px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(15, 23, 42, 0.94);
}

.about-photo strong {
  color: var(--white);
  font-size: 22px;
}

.about-photo span {
  color: #d8b4fe;
  font-size: 14px;
}

.about-main {
  color: var(--slate-300);
  font-size: 18px;
}

.about-main p {
  margin: 0 0 22px;
}

.skill-group {
  padding-top: 24px;
}

.skill-group h3 {
  margin: 0 0 16px;
  color: var(--white);
  font-size: 20px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  background: var(--slate-800);
  color: var(--slate-300);
  font-size: 14px;
}

.tag-hot {
  border-color: rgba(129, 140, 248, 0.22);
  background: rgba(79, 70, 229, 0.2);
  color: #c7d2fe;
}

.about-card,
.timeline-card,
.contact-card {
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(15, 23, 42, 0.86);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.22);
}

.about-card {
  height: fit-content;
  padding: 28px;
  border-radius: 18px;
}

.about-card div + div {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.about-card span {
  display: block;
  margin-bottom: 6px;
  color: var(--purple-soft);
  font-size: 13px;
}

.about-card strong {
  display: block;
  color: var(--white);
  font-size: 18px;
  line-height: 1.45;
}

.experience-section {
  position: relative;
}

.timeline {
  position: relative;
  width: min(896px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 48px;
}

.timeline::before {
  position: absolute;
  inset: 0 auto 0 50%;
  width: 1px;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.1);
  content: "";
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.timeline-item::before {
  position: absolute;
  left: 50%;
  width: 16px;
  height: 16px;
  border: 4px solid var(--slate-950);
  border-radius: 999px;
  transform: translateX(-50%);
  background: var(--purple);
  box-shadow: 0 0 22px rgba(168, 85, 247, 0.5);
  content: "";
}

.timeline-date {
  color: var(--purple-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 14px;
}

.timeline-card {
  padding: 24px;
  border-radius: 18px;
  transition: border-color 180ms ease, transform 180ms ease;
}

.timeline-card:hover {
  border-color: rgba(168, 85, 247, 0.36);
  transform: translateY(-2px);
}

.timeline-card h3 {
  margin: 0 0 4px;
  color: var(--white);
  font-size: 20px;
}

.timeline-card strong {
  display: block;
  margin-bottom: 14px;
  color: #a5b4fc;
}

.timeline-card p {
  margin: 0;
  color: var(--slate-400);
  font-size: 14px;
}

.timeline-item.right .timeline-date {
  grid-column: 2;
}

.timeline-item.right .timeline-card {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
}

.portfolio-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}

.portfolio-head .section-title {
  width: auto;
  margin: 0;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.filter-btn {
  min-height: 40px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: var(--slate-800);
  color: var(--slate-400);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.filter-btn:hover {
  background: var(--slate-700);
  color: var(--white);
}

.filter-btn.active {
  background: var(--purple);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(147, 51, 234, 0.25);
}

.portfolio-grid {
  width: min(var(--max), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.portfolio-item {
  position: relative;
  display: block;
  height: 320px;
  overflow: hidden;
  border: 0;
  border-radius: 18px;
  background: var(--slate-900);
  color: inherit;
  cursor: pointer;
  opacity: 1;
  transform: scale(1);
  transition: opacity 360ms ease, transform 360ms ease;
}

.portfolio-item.hide {
  display: none;
  opacity: 0;
  transform: scale(0.95);
}

.portfolio-item.show {
  display: block;
  animation: fadeIn 420ms ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.portfolio-item img {
  opacity: 0.82;
  transition: transform 520ms ease, opacity 520ms ease;
}

.portfolio-item:hover img {
  opacity: 1;
  transform: scale(1.08);
}

.portfolio-item.portrait img {
  object-position: center 34%;
}

.portfolio-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(2, 6, 23, 0.96), rgba(15, 23, 42, 0.58) 48%, rgba(88, 28, 135, 0.16));
}

.portfolio-content {
  position: absolute;
  inset: auto 0 0;
  display: grid;
  gap: 8px;
  padding: 24px;
  text-align: left;
  transform: translateY(28px);
  transition: transform 260ms ease;
}

.portfolio-item:hover .portfolio-content {
  transform: translateY(0);
}

.portfolio-content small {
  color: #d8b4fe;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portfolio-content strong {
  color: var(--white);
  font-size: 20px;
  line-height: 1.25;
}

.portfolio-content em {
  color: var(--slate-300);
  font-size: 14px;
  font-style: normal;
  opacity: 0;
  transition: opacity 260ms ease 80ms;
}

.portfolio-item:hover .portfolio-content em {
  opacity: 1;
}

.contact-section {
  position: relative;
  overflow: hidden;
}

.glow-footer {
  bottom: 0;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%, 50%);
  background: rgba(79, 70, 229, 0.2);
}

.contact-inner {
  position: relative;
  z-index: 1;
  width: min(896px, 100%);
  margin: 0 auto;
  text-align: center;
}

.contact-inner h2 {
  margin: 0 0 22px;
  color: var(--white);
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.16;
}

.contact-inner > p {
  margin: 0 0 48px;
  color: var(--slate-400);
  font-size: 20px;
}

.contact-cards {
  justify-content: center;
}

.contact-card {
  min-width: min(100%, 300px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 16px 28px;
  border-radius: 18px;
  text-align: left;
  transition: background 180ms ease, border-color 180ms ease;
}

.contact-card:hover {
  border-color: rgba(168, 85, 247, 0.5);
  background: var(--slate-800);
}

.contact-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.2);
  color: var(--indigo-soft);
  font-size: 24px;
}

.contact-icon.green {
  background: rgba(34, 197, 94, 0.2);
  color: #86efac;
}

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

.contact-card small {
  color: var(--slate-400);
  font-size: 14px;
}

.contact-card strong {
  color: var(--white);
  font-size: 18px;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 32px 24px;
  text-align: center;
  color: var(--slate-500);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.site-footer p + p {
  margin-top: 8px;
}

.gallery {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 56px 88px;
  background: rgba(2, 6, 23, 0.94);
  backdrop-filter: blur(18px);
}

.gallery[hidden] {
  display: none;
}

.gallery-stage {
  width: min(1120px, 100%);
  margin: 0;
  display: grid;
  gap: 16px;
}

.gallery-stage img {
  width: 100%;
  max-height: 76vh;
  object-fit: contain;
  border-radius: 18px;
  background: var(--slate-900);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.52);
}

.gallery-stage figcaption {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--slate-300);
}

.gallery-stage strong {
  color: var(--white);
}

.gallery-stage span {
  color: var(--purple-soft);
  font-size: 14px;
}

.gallery-close,
.gallery-nav,
.gallery-play {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(15, 23, 42, 0.82);
  color: var(--white);
  cursor: pointer;
  transition: background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.gallery-close:hover,
.gallery-nav:hover,
.gallery-play:hover {
  border-color: rgba(168, 85, 247, 0.6);
  background: rgba(30, 41, 59, 0.95);
}

.gallery-close {
  top: 18px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  font-size: 32px;
  line-height: 1;
}

.gallery-nav {
  top: 50%;
  width: 52px;
  height: 72px;
  border-radius: 999px;
  transform: translateY(-50%);
  font-size: 54px;
  line-height: 0.8;
}

.gallery-prev {
  left: 24px;
}

.gallery-next {
  right: 24px;
}

.gallery-play {
  right: 24px;
  bottom: 22px;
  min-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  color: #d8b4fe;
  font-size: 14px;
}

@media (max-width: 960px) {
  .nav-links {
    display: none;
  }

  .hero-inner,
  .about-grid,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .about-photo {
    position: relative;
    top: auto;
    max-width: 420px;
  }

  .hero-card {
    min-height: 420px;
  }

  .timeline {
    gap: 28px;
  }

  .timeline::before {
    left: 8px;
  }

  .timeline-item {
    padding-left: 32px;
    gap: 10px;
  }

  .timeline-item::before {
    left: 8px;
  }

  .timeline-item.right .timeline-date,
  .timeline-item.right .timeline-card {
    grid-column: auto;
    grid-row: auto;
    text-align: left;
  }

  .portfolio-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .filter-tabs {
    justify-content: flex-start;
  }

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

@media (max-width: 640px) {
  .nav-inner {
    width: calc(100% - 32px);
  }

  .hero-section,
  .section {
    padding-right: 16px;
    padding-left: 16px;
  }

  .hero-section {
    padding-top: 72px;
  }

  .hero-card {
    height: 360px;
  }

  .hero-actions,
  .contact-cards {
    display: grid;
  }

  .primary-btn,
  .ghost-btn {
    width: 100%;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-item {
    height: 300px;
  }

  .gallery {
    padding: 72px 14px 82px;
  }

  .gallery-nav {
    top: auto;
    bottom: 20px;
    width: 48px;
    height: 48px;
    transform: none;
    font-size: 42px;
  }

  .gallery-prev {
    left: 16px;
  }

  .gallery-next {
    right: 16px;
  }

  .gallery-play {
    right: 50%;
    bottom: 25px;
    transform: translateX(50%);
  }
}