/* ============ tokens ============ */
:root {
  --paper: #FFFBF0;
  --white: #FFFFFF;
  --ink: #15151A;
  --yellow: #FFD500;
  --blue: #2547F0;
  --pink: #F9C1E5;
  --border: 3px solid var(--ink);
  --border-thin: 2.5px solid var(--ink);
  --shadow: 8px 8px 0 var(--ink);
  --shadow-sm: 5px 5px 0 var(--ink);
  --container: 1160px;
  --font-display: "ZCOOL QingKe HuangYou", "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-hand: "ZCOOL KuaiLe", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
}

/* ============ base ============ */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body { margin: 0; }

body {
  background: var(--paper);
  background-image: radial-gradient(rgba(21, 21, 26, 0.08) 1.2px, transparent 1.2px);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  margin: 0;
}

::selection { background: var(--yellow); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}
.on-dark :focus-visible { outline-color: var(--yellow); }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--yellow);
  border: var(--border);
  padding: 10px 16px;
  font-weight: 700;
}
.skip:focus { left: 12px; top: 12px; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: clamp(72px, 10vw, 120px);
  scroll-margin-top: 84px;
}

/* ============ 通用件 ============ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
}
.eyebrow::before {
  content: "";
  width: 13px;
  height: 13px;
  background: var(--yellow);
  border: var(--border);
  border-width: 3px;
  transform: rotate(45deg);
  flex: none;
}
.on-dark .eyebrow { color: var(--white); }
.on-dark .eyebrow::before { background: var(--pink); }

.sec-title {
  font-size: clamp(34px, 5.5vw, 56px);
  margin-bottom: clamp(24px, 4vw, 40px);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  padding: 13px 22px;
  border: var(--border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover { transform: translate(3px, 3px); box-shadow: 2px 2px 0 var(--ink); }
.btn:active { transform: translate(5px, 5px); box-shadow: none; }
.btn-yellow { background: var(--yellow); }
.btn-blue { background: var(--blue); color: var(--white); }

.btn-ghost {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  padding: 4px 2px 6px;
  border-bottom: 3px solid var(--ink);
}
.btn-ghost:hover { color: var(--blue); border-color: var(--blue); }

/* ============ nav ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--yellow);
  border-bottom: var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 10px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
}
.brand-paw { width: 34px; height: 34px; flex: none; }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  padding: 6px 10px;
  border: 3px solid transparent;
}
.nav-links a:hover { border-color: var(--ink); background: var(--paper); }

@media (max-width: 480px) {
  .brand-name { display: none; }
  .nav-links a { font-size: 13px; padding: 6px 8px; }
}

/* ============ hero ============ */
.hero { padding-top: clamp(48px, 8vw, 96px); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(280px, 400px) 1fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}

.hero-sticker { text-align: center; }

.sticker-card {
  position: relative;
  background: var(--white);
  border: var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px;
  transform: rotate(-2.4deg);
  transition: transform 0.2s ease;
}
.sticker-card:hover { transform: rotate(0deg) translateY(-4px); }
.sticker-card img { border-radius: 8px; }

.tape {
  position: absolute;
  width: 96px;
  height: 26px;
  background: var(--yellow);
  border: 2px solid var(--ink);
  opacity: 0.92;
  box-shadow: 2px 2px 0 rgba(21, 21, 26, 0.2);
}
.tape-l { top: -13px; left: 34px; transform: rotate(-38deg); }
.tape-r { top: -13px; right: 34px; transform: rotate(38deg); }

.sticker-tag {
  position: absolute;
  right: -16px;
  bottom: -16px;
  width: 64px;
  height: 64px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--pink);
  display: grid;
  place-items: center;
  transform: rotate(12deg);
  box-shadow: var(--shadow-sm);
}

.plate {
  display: inline-block;
  margin: 26px 0 0;
  padding: 6px 14px;
  background: var(--yellow);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  transform: rotate(1.2deg);
}

.hero-title {
  font-size: clamp(52px, 9.5vw, 116px);
  letter-spacing: 0.02em;
  margin: 6px 0 12px;
}

.hero-sub {
  font-family: var(--font-hand);
  font-weight: 700;
  color: var(--blue);
  font-size: clamp(20px, 3vw, 30px);
  margin: 0 0 20px;
}

.role-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0 0 20px;
}
.role-chips li {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 7px 14px;
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.15s ease;
}
.role-chips li:hover { transform: rotate(-2.5deg) scale(1.04); }

.hero-desc { max-width: 46ch; font-weight: 500; margin-bottom: 28px; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-sticker { max-width: 320px; margin-inline: auto; }
  .hero-title { font-size: clamp(52px, 15vw, 92px); }
}

/* ============ marquee ============ */
.marquee {
  background: var(--yellow);
  border-block: var(--border);
  width: 106vw;
  margin-left: -3vw;
  margin-top: clamp(48px, 8vw, 88px);
  overflow: hidden;
  transform: rotate(-1.4deg);
}
.marquee-track {
  display: flex;
  white-space: nowrap;
  animation: marquee 26s linear infinite;
  will-change: transform;
}
.marquee-track span {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 22px);
  font-weight: 800;
  letter-spacing: 0.22em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============ stats ============ */
.stats { padding-block: clamp(56px, 8vw, 96px); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.stat-card {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 28px 26px;
}
.stat-blue { background: var(--blue); color: var(--white); }
.stat-blue .stat-label { color: rgba(255, 255, 255, 0.85); }
.stat-pink { background: var(--pink); }

.stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(42px, 6vw, 64px);
  line-height: 1;
  display: block;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  margin-top: 10px;
  display: block;
}

@media (max-width: 760px) {
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ============ about ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(32px, 6vw, 72px);
}
.about-note { margin: 0; font-family: var(--font-mono); font-size: 14px; }

.about-items { display: flex; flex-direction: column; gap: 22px; }

.item {
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 22px 24px;
}
.item h3 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 22px;
  margin-bottom: 8px;
}
.item-tag {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 800;
  color: var(--blue);
}
.item p { margin: 0; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ============ skills ============ */
.skills {
  background: var(--blue);
  border-block: var(--border);
  color: var(--white);
}
.skills-title { color: var(--white); text-shadow: 4px 4px 0 rgba(21, 21, 26, 0.45); }

.skill-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 40px;
}

.skill-card {
  background: var(--paper);
  border: var(--border);
  box-shadow: var(--shadow);
  color: var(--ink);
  padding: 26px 24px;
  transition: transform 0.15s ease;
}
.skill-card:hover { transform: translate(-3px, -3px); }
.skill-card h3 { font-size: 24px; margin-bottom: 6px; }
.skill-desc { font-size: 14px; line-height: 1.7; margin-bottom: 16px; }

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 0;
  margin: 0;
}
.chips li {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  padding: 5px 13px;
  background: var(--white);
  border: var(--border-thin);
  border-radius: 999px;
  transition: transform 0.15s ease;
}
.chips li:hover { transform: rotate(-3deg) scale(1.06); }

@media (max-width: 980px) {
  .skill-groups { grid-template-columns: 1fr; }
}

/* ============ work ============ */
.product-card {
  display: grid;
  grid-template-columns: minmax(240px, 400px) 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: clamp(26px, 4.5vw, 46px);
}

.product-art {
  background: var(--yellow);
  border: var(--border);
  padding: clamp(24px, 4vw, 40px);
  display: grid;
  place-items: center;
  transform: rotate(-2deg);
}
.bear-sleep { width: min(100%, 220px); height: auto; }

.product-tag {
  display: inline-block;
  background: var(--pink);
  border: var(--border);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}
.product-name { font-size: clamp(32px, 4.5vw, 48px); margin-bottom: 12px; }
.product-desc { max-width: 54ch; margin-bottom: 18px; }

.product-hint {
  display: inline-block;
  background: var(--yellow);
  border: var(--border);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}
.product-actions { display: flex; flex-wrap: wrap; gap: 14px; }

@media (max-width: 900px) {
  .product-card { grid-template-columns: 1fr; }
  .product-art { max-width: 320px; margin-inline: auto; }
}

/* ============ contact ============ */
.platform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.platform-card {
  position: relative;
  display: block;
  background: var(--white);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 28px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.platform-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 12px 12px 0 var(--ink);
}
.p-icon {
  width: 56px;
  height: 56px;
  border: var(--border);
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
.bili .p-icon { background: var(--pink); }
.wechat .p-icon { background: var(--yellow); }

.platform-card h3 { font-size: 26px; margin-bottom: 2px; }
.p-handle {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 8px;
}
.p-desc { font-size: 14px; margin-bottom: 14px; }
.p-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  border-bottom: 3px solid var(--ink);
  padding-bottom: 2px;
}

@media (max-width: 800px) {
  .platform-grid { grid-template-columns: 1fr; }
}

/* ============ quote ============ */
.quote { text-align: center; }

.quote-text {
  font-family: var(--font-hand);
  font-weight: 700;
  font-size: clamp(26px, 5.4vw, 52px);
  line-height: 1.55;
  max-width: 20em;
  margin: 0 auto;
  padding: 0;
}
.marker {
  font-style: normal;
  background: linear-gradient(transparent 62%, var(--yellow) 62%);
  padding: 0 0.14em;
}

.quote-src {
  font-family: var(--font-mono);
  font-weight: 700;
  margin: 26px 0 0;
}
.quote-paws { margin: 36px auto 0; opacity: 0.9; }

/* ============ footer ============ */
.footer {
  background: var(--ink);
  color: var(--paper);
  border-top: var(--border);
  padding-block: 40px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
}
.footer-inner p { margin: 0; }
.footer-cred { opacity: 0.75; }
.footer-cred::before { content: "♥ "; color: var(--yellow); }

/* ============ reveal ============ */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.js .reveal.in { opacity: 1; transform: none; }

/* ============ 动画（1）加载入场 ============ */
@keyframes nav-drop { from { transform: translateY(-110%); } to { transform: translateY(0); } }
.js .nav { animation: nav-drop 0.4s ease both; }

@keyframes sticker-pop {
  from { opacity: 0; transform: scale(0.6) rotate(-16deg); }
  70% { opacity: 1; transform: scale(1.04) rotate(-1deg); }
  to { opacity: 1; transform: rotate(-2.4deg); }
}
.js .sticker-card { animation: sticker-pop 0.6s cubic-bezier(0.22, 0.9, 0.3, 1.2) 0.12s backwards; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}
.js .hero-copy > * { animation: fade-up 0.55s ease backwards; }
.js .hero-copy > *:nth-child(1) { animation-delay: 0.2s; }
.js .hero-copy > *:nth-child(2) { animation-delay: 0.28s; }
.js .hero-copy > *:nth-child(3) { animation-delay: 0.36s; }
.js .hero-copy > *:nth-child(4) { animation-delay: 0.44s; }
.js .hero-copy > *:nth-child(5) { animation-delay: 0.52s; }
.js .hero-copy > *:nth-child(6) { animation-delay: 0.6s; }
.js .plate { animation: fade-up 0.5s ease 0.75s backwards; }

/* ============ 动画（3）睡觉小熊呼吸 + Zz 漂浮 ============ */
@keyframes bear-breathe { 0%, 100% { scale: 1; } 50% { scale: 1.03; } }
.bear-sleep { animation: bear-breathe 3.2s ease-in-out infinite; }

@keyframes zz-float {
  0% { opacity: 0.9; translate: 0 0; }
  100% { opacity: 0; translate: 0 -14px; }
}
.zz { animation: zz-float 2.4s ease-in infinite; }
.zz-b { animation-delay: 1.2s; }

/* ============ 动画（4）技能 chips 逐个弹入 ============ */
@keyframes chip-pop {
  from { opacity: 0; transform: translateY(10px) scale(0.4); }
  to { opacity: 1; transform: none; }
}
.js .skill-card.in .chips li {
  animation: chip-pop 0.42s cubic-bezier(0.34, 1.56, 0.64, 1) backwards;
  animation-delay: calc(var(--i, 0) * 70ms);
}

/* ============ 动画（5）格言逐字显现 ============ */
.js .quote-text .q-char {
  opacity: 0;
  transform: translateY(0.5em);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.js .quote-text.in .q-char { opacity: 1; transform: none; }

/* ============ 动画（6）平台卡 hover ============ */
@keyframes icon-wobble {
  0%, 100% { transform: rotate(0deg); }
  30% { transform: rotate(-10deg); }
  60% { transform: rotate(8deg); }
}
.platform-card:hover .p-icon { animation: icon-wobble 0.5s ease; }

@keyframes arrow-nudge {
  0%, 100% { translate: 0 0; }
  50% { translate: 6px 0; }
}
.platform-card:hover .p-cta { animation: arrow-nudge 0.9s ease-in-out infinite; }

/* ============ reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .js .reveal { opacity: 1; transform: none; }
}