/* 大圣个人网站 — Claude 文档风 */

:root {
  --bg: #f5f1e8;
  --bg-2: #ede8db;
  --ink: #2a2520;
  --ink-2: #4a423a;
  --dim: #6b5e54;
  --dim-2: #948578;
  --line: rgba(42, 37, 32, 0.12);
  --line-strong: rgba(42, 37, 32, 0.25);
  --accent: #c96442;
  --accent-soft: rgba(201, 100, 66, 0.1);

  --font-serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif SC", "Times New Roman", serif;
  --font-sans:  "HarmonyOS Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono:  ui-monospace, "SF Mono", Menlo, "JetBrains Mono", "Cascadia Mono", Consolas, monospace;

  --content-max: 640px;
  --pad-x: clamp(20px, 5vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ─── layout ─── */

.site {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* navbar */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--dim);
}
.nav__brand { letter-spacing: 0.05em; }
.nav__links { display: flex; gap: 22px; }
.nav__links a { transition: color 0.15s; }
.nav__links a:hover { color: var(--ink); }
@media (max-width: 540px) {
  .nav__links { display: none; }
}

/* hero */
.hero {
  padding: clamp(48px, 10vw, 80px) 0 clamp(28px, 5vw, 40px);
}
.hero__greet {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.hero__greet::before {
  content: "｜ ";
  color: var(--accent);
}
.hero__name {
  font-family: var(--font-serif);
  font-size: clamp(48px, 9vw, 72px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.hero__tagline {
  font-size: clamp(17px, 2.4vw, 22px);
  color: var(--ink-2);
  line-height: 1.55;
  margin: 0 0 36px;
  max-width: 42ch;
}

.bio-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: clamp(20px, 3.5vw, 28px);
}

/* hero photo — 嵌入「关于我」顶部的全宽品牌图 */
.hero-photo {
  margin: 0 0 clamp(20px, 3.5vw, 28px);
  border-radius: 8px;
  overflow: hidden;
  background: #f0a23a;
  box-shadow: 0 1px 0 rgba(42, 37, 32, 0.08);
}
.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
}
.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-2);
  background-image: repeating-linear-gradient(45deg, rgba(0,0,0,0.04) 0 6px, transparent 6px 12px);
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--dim);
  flex-shrink: 0;
}
.bio-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--dim);
}

/* stats bar — 4 个数据，在桌面 4 列、手机 2×2 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(28px, 5vw, 40px);
  padding: clamp(18px, 3vw, 24px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat {
  text-align: center;
  padding: 4px 8px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.stat:last-child { border-right: none; }
.stat__num {
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--dim);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
/* 手机端 — 2×2，中间一条横线分隔上下两行 */
@media (max-width: 540px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 16px;
    padding: 18px 0;
  }
  .stat { padding: 8px 4px; }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) {
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
  }
  .stat:nth-child(3), .stat:nth-child(4) { padding-top: 6px; }
  .stat__num { font-size: 24px; }
  .stat__label { font-size: 11px; }
}

/* section divider with caption */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: clamp(32px, 6vw, 48px) 0 clamp(20px, 3.5vw, 28px);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.divider::before { content: "━━"; color: var(--accent); }

/* prose / manifesto — 正文统一为 16px 黑体，不再变子 */
.prose {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 60ch;
}
.prose p { margin: 0 0 1.1em; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { font-weight: 600; }

/* tag chips — 收紧间距，让标签抱团 */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 5px;
  margin-top: 24px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  padding: 3px 9px;
  background: rgba(42, 37, 32, 0.06);
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

/* product list */
.products { margin-top: 4px; }
.product {
  display: block;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 0.15s;
}
.product:hover { background: linear-gradient(to right, transparent, var(--accent-soft) 50%, transparent); }
.product__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 8px;
}
.product__name {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 24px);
  font-weight: 500;
  margin: 0;
  line-height: 1.25;
}
.product__price {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}
.product__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dim);
  margin-bottom: 10px;
}
.product__desc {
  font-family: var(--font-sans);
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.65;
  margin: 0 0 12px;
}
.product__cta {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.15s;
}
.product:hover .product__cta { gap: 8px; }

/* manifesto block */
.manifesto {
  background: var(--bg-2);
  border-radius: 4px;
  padding: clamp(20px, 4vw, 28px) clamp(24px, 5vw, 36px);
  margin: clamp(28px, 5vw, 40px) 0 0;
  position: relative;
}
.manifesto__label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.manifesto__quote {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.8vw, 24px);
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* contact */
.contact {
  padding: 0 0 clamp(40px, 7vw, 72px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact__id {
  font-family: var(--font-serif);
  font-size: clamp(20px, 3vw, 24px);
  font-weight: 500;
  letter-spacing: 0.02em;
  margin: 0;
  /* button reset + interactive affordance */
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: var(--ink);
  text-align: left;
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  align-self: flex-start;
  transition: opacity 0.15s;
}
.contact__id:hover { opacity: 0.7; }
.contact__id:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}
.contact__copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--dim);
  font-weight: 400;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  position: relative;
  top: -2px;
}
.contact__id:hover .contact__copy {
  color: var(--accent);
  border-color: var(--accent);
}
.contact__copy.is-copied {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.contact__handle {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.contact__channels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}
.channel {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink-2);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  cursor: pointer;
}
.channel:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* footer */
.footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* density modes */
[data-density="cozy"]   { --content-max: 580px; }
[data-density="normal"] { --content-max: 640px; }
[data-density="airy"]   { --content-max: 720px; }

/* mobile tweaks */
@media (max-width: 480px) {
  .product__head { flex-wrap: wrap; }
  .product__price { width: 100%; order: 3; margin-top: 4px; }
  .manifesto__creed { font-size: 10px; gap: 10px 16px; }
}

/* entry animation */
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.rise { animation: rise 0.6s cubic-bezier(0.2, 0.7, 0.3, 1) both; }
.rise-1 { animation-delay: 0.05s; }
.rise-2 { animation-delay: 0.15s; }
.rise-3 { animation-delay: 0.25s; }
.rise-4 { animation-delay: 0.35s; }