:root {
  --bg: #f4efe7;
  --bg-strong: #ebe2d4;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(36, 44, 60, 0.14);
  --ink: #1f2431;
  --ink-soft: #4d566d;
  --brand: #0f9a94;
  --brand-strong: #0a6f6b;
  --brand-alt: #ff7f50;
  --shadow-soft: 0 15px 36px rgba(43, 35, 23, 0.1);
  --shadow-card: 0 10px 26px rgba(28, 34, 50, 0.12);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 14%, rgba(255, 127, 80, 0.28), transparent 34%),
    radial-gradient(circle at 86% 8%, rgba(15, 154, 148, 0.24), transparent 30%),
    linear-gradient(140deg, #f7f3eb 0%, #ede4d7 56%, #f7f2ea 100%);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.cursor-orb {
  position: fixed;
  width: 220px;
  aspect-ratio: 1;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
  background: radial-gradient(circle, rgba(15, 154, 148, 0.58), rgba(15, 154, 148, 0));
  transform: translate(-50%, -50%);
  transition: transform 0.08s linear;
}

.page-wipe {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: linear-gradient(120deg, #1f2431, #0f9a94);
  transform: translateY(0);
  transition: transform 360ms ease;
  pointer-events: none;
}

.page-wipe.loaded {
  transform: translateY(-110%);
}

.site-shell {
  width: min(1160px, 92vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 14px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand {
  text-decoration: none;
  color: var(--ink);
  font-family: "ZCOOL QingKe HuangYou", cursive;
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.24s, color 0.24s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--brand-strong);
  background: rgba(15, 154, 148, 0.13);
}

.btn {
  border: 0;
  border-radius: 11px;
  padding: 10px 16px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  transition: transform 0.24s, box-shadow 0.24s, filter 0.24s;
  background: var(--brand);
  color: #f4ffff;
  box-shadow: 0 8px 16px rgba(15, 154, 148, 0.24);
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
}

.btn.alt {
  background: var(--brand-alt);
  box-shadow: 0 8px 16px rgba(255, 127, 80, 0.23);
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(15, 154, 148, 0.34);
  color: var(--brand-strong);
  box-shadow: none;
}

.btn.small {
  padding: 7px 12px;
  font-size: 0.82rem;
  font-weight: 600;
}

.hero {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.glass {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
}

.hero-main {
  padding: clamp(24px, 4vw, 40px);
  position: relative;
  overflow: hidden;
}

.hero-main::after {
  content: "";
  position: absolute;
  width: 200px;
  aspect-ratio: 1;
  border-radius: 50%;
  top: -50px;
  right: -50px;
  background: radial-gradient(circle, rgba(255, 127, 80, 0.34), rgba(255, 127, 80, 0));
  pointer-events: none;
}

.eyebrow {
  margin: 0;
  display: inline-flex;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--brand-strong);
  background: rgba(15, 154, 148, 0.12);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.24;
}

.hero-title {
  margin-top: 16px;
  font-family: "ZCOOL QingKe HuangYou", cursive;
  font-size: clamp(2.15rem, 5vw, 3.4rem);
  letter-spacing: 0.6px;
}

.hero-gradient {
  background: linear-gradient(120deg, #0a716f, #ff7f50 58%, #3d6fe0);
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  margin: 16px 0 0;
  max-width: 40ch;
  color: #394055;
}

.hero-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-metrics {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.metric-item {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(54, 69, 90, 0.11);
}

.metric-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ink);
}

.metric-label {
  margin-top: 2px;
  font-size: 0.78rem;
  color: #66708a;
}

.hero-side {
  padding: 18px;
  display: grid;
  gap: 12px;
}

.stack-card {
  border-radius: 14px;
  background: var(--surface-strong);
  border: 1px solid rgba(54, 69, 90, 0.11);
  padding: 14px;
  box-shadow: var(--shadow-card);
}

.stack-card h3 {
  font-size: 1rem;
}

.stack-card p {
  margin: 8px 0 0;
  color: #535d76;
  font-size: 0.9rem;
}

.avatar-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.avatar-frame {
  width: 50px;
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(15, 154, 148, 0.26);
  background: linear-gradient(125deg, var(--brand), var(--brand-alt));
  color: white;
  display: grid;
  place-items: center;
  font-family: "ZCOOL QingKe HuangYou", cursive;
  font-size: 1.3rem;
}

.avatar-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.avatar-frame.has-image img {
  display: block;
}

.avatar-frame.has-image span {
  display: none;
}

.section {
  margin-top: 18px;
  padding: clamp(18px, 3vw, 28px);
}

.section h2 {
  font-size: clamp(1.3rem, 3.1vw, 1.75rem);
}

.section p {
  color: #4f5870;
}

.grid-3 {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.grid-2 {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.feature-card {
  border-radius: 14px;
  border: 1px solid rgba(54, 69, 90, 0.12);
  background: #fff;
  padding: 14px;
  box-shadow: var(--shadow-card);
  transition: transform 0.24s;
}

.feature-card:hover {
  transform: translateY(-3px);
}

.feature-card h3 {
  font-size: 1rem;
}

.feature-card p {
  margin: 8px 0 0;
  font-size: 0.9rem;
}

.feature-card .go-link {
  margin-top: 10px;
  display: inline-block;
  font-size: 0.86rem;
  color: var(--brand-strong);
  text-decoration: none;
  font-weight: 700;
}

.timeline {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.timeline-item {
  background: #fff;
  border-radius: 12px;
  border: 1px solid rgba(54, 69, 90, 0.12);
  padding: 12px;
}

.timeline-item .when {
  display: inline-flex;
  font-size: 0.78rem;
  padding: 4px 8px;
  border-radius: 999px;
  color: #73543b;
  background: rgba(255, 127, 80, 0.16);
  font-weight: 700;
}

.timeline-item h4 {
  margin-top: 8px;
  font-size: 0.98rem;
}

.timeline-item p {
  margin: 6px 0 0;
  font-size: 0.9rem;
}

.chip-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(54, 69, 90, 0.14);
  font-size: 0.88rem;
}

.remove-btn {
  border: 0;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 0.74rem;
  background: rgba(255, 127, 80, 0.18);
  color: #934e2f;
  cursor: pointer;
}

.editor-toolbar {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.editor-panel {
  margin-top: 10px;
  border: 1px dashed rgba(54, 69, 90, 0.3);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  padding: 12px;
}

.editor-panel p {
  margin: 0;
  font-size: 0.86rem;
  color: #697189;
}

.editor-row {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.editor-input,
.editor-textarea {
  width: 100%;
  border: 1px solid rgba(54, 69, 90, 0.2);
  border-radius: 10px;
  font: inherit;
  padding: 9px 10px;
  background: rgba(255, 255, 255, 0.92);
}

.editor-input {
  flex: 1 1 220px;
}

.editor-textarea {
  min-height: 90px;
  resize: vertical;
}

.status-text {
  margin-top: 8px;
  font-size: 0.84rem;
  color: #687087;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.project-card {
  border-radius: 14px;
  border: 1px solid rgba(54, 69, 90, 0.14);
  background: #fff;
  padding: 14px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.project-remove {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 0;
  border-radius: 8px;
  font-size: 0.75rem;
  padding: 3px 8px;
  background: rgba(255, 127, 80, 0.18);
  color: #934e2f;
  cursor: pointer;
}

.project-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: flex-start;
  padding-right: 44px;
}

.project-head h3 {
  font-size: 1rem;
}

.project-head span {
  font-size: 0.78rem;
  color: #606a83;
  white-space: nowrap;
}

.project-meta {
  margin: 8px 0;
  font-size: 0.86rem;
  color: #5d6881;
}

.project-card ul {
  margin: 0;
  padding-left: 20px;
}

.project-card li + li {
  margin-top: 6px;
}

.project-link {
  margin-top: 10px;
  display: inline-block;
  color: var(--brand-strong);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.86rem;
}

.playground-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.lab-panel {
  padding: clamp(18px, 3vw, 28px);
}

.lab-headline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.lab-desc {
  margin: 12px 0 0;
  color: #4f5870;
  font-size: 0.94rem;
}

.note-form {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.notes-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.note-card {
  border-radius: 14px;
  border: 1px solid rgba(54, 69, 90, 0.12);
  background:
    linear-gradient(135deg, rgba(15, 154, 148, 0.08), rgba(255, 127, 80, 0.08)),
    #fff;
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-card);
}

.note-card p {
  margin: 0;
  font-size: 0.92rem;
  color: #3f475c;
}

.focus-badge {
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.82rem;
  background: rgba(255, 127, 80, 0.14);
  color: #8a4d33;
  white-space: nowrap;
}

.timer-display {
  margin-top: 18px;
  font-family: "ZCOOL QingKe HuangYou", cursive;
  font-size: clamp(3rem, 10vw, 5rem);
  letter-spacing: 2px;
  color: #102f3a;
}

.preset-row {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.preset-pill {
  border: 1px solid rgba(15, 154, 148, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink-soft);
  padding: 8px 14px;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.24s, color 0.24s, transform 0.24s;
}

.preset-pill:hover {
  transform: translateY(-2px);
}

.preset-pill.active {
  background: rgba(15, 154, 148, 0.14);
  color: var(--brand-strong);
}

.quote-card {
  margin-top: 14px;
  border-radius: 20px;
  border: 1px solid rgba(54, 69, 90, 0.12);
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 127, 80, 0.2), transparent 26%),
    radial-gradient(circle at 90% 10%, rgba(15, 154, 148, 0.18), transparent 30%),
    #fff;
  padding: clamp(18px, 4vw, 28px);
  box-shadow: var(--shadow-card);
}

.idea-text {
  margin: 0;
  font-size: clamp(1.15rem, 3vw, 1.6rem);
  line-height: 1.55;
  color: #243042;
  font-weight: 700;
}

.idea-subtitle {
  margin: 14px 0 0;
  font-size: 0.9rem;
  color: var(--brand-strong);
  font-weight: 700;
}

.contact-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.contact-card {
  border-radius: 14px;
  border: 1px solid rgba(54, 69, 90, 0.13);
  background: #fff;
  padding: 14px;
}

.contact-card h3 {
  font-size: 1rem;
}

.contact-card p {
  margin: 7px 0 0;
  font-size: 0.9rem;
}

.contact-card a {
  color: var(--brand-strong);
  text-decoration: none;
  font-weight: 700;
}

.empty-tip {
  border-radius: 12px;
  border: 1px dashed rgba(54, 69, 90, 0.3);
  background: rgba(255, 255, 255, 0.75);
  padding: 13px;
  color: #677087;
  font-size: 0.9rem;
}

.footer {
  margin: 24px 0 30px;
  text-align: center;
  color: #6f7892;
  font-size: 0.9rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

.is-hidden {
  display: none !important;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .project-grid,
  .playground-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar {
    border-radius: 18px;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    gap: 10px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 16px;
  }

  .lab-headline {
    flex-direction: column;
    align-items: flex-start;
  }

  .cursor-orb {
    display: none;
  }
}