/* ============================================================
   极简留白 · 个人主页模板
   两个站点共用这一份样式，主色由各站点 index.html 里的
   --accent 覆盖，改配色不用动这个文件。
   ============================================================ */

:root {
  /* 主色（各站点在 index.html 中覆盖） */
  --accent: #5f7a52;

  /* 中性色 */
  --bg:      #fbfbfa;
  --fg:      #16181a;
  --muted:   #6f7378;
  --faint:   #9a9ea3;
  --line:    #e6e6e3;
  --line-strong: #d4d4d0;

  /* 尺度 */
  --wrap: 1080px;
  --gap-section: 104px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

.section { padding: var(--gap-section) 0; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 251, 250, 0.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.nav.is-scrolled { border-bottom-color: var(--line); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand span {
  display: inline-block;
  width: 6px; height: 6px;
  margin-left: 7px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}

.nav nav {
  display: flex;
  gap: 30px;
}

.nav nav a {
  position: relative;
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.25s var(--ease);
}

.nav nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav nav a:hover { color: var(--fg); }
.nav nav a:hover::after,
.nav nav a.is-active::after { transform: scaleX(1); }
.nav nav a.is-active { color: var(--fg); }

/* ---------- Hero ---------- */
.hero { padding: 96px 0 var(--gap-section); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 64px;
  align-items: start;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 26px;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.1rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 600;
  text-wrap: balance;
}

.lede {
  margin-top: 28px;
  max-width: 54ch;
  font-size: 1.075rem;
  color: var(--muted);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 26px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 999px;
  font-size: 0.925rem;
  font-weight: 500;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.btn:hover { transform: translateY(-2px); opacity: 0.88; }
.btn:active { transform: translateY(0); }

.link-quiet {
  font-size: 0.925rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.link-quiet:hover { color: var(--accent); border-color: var(--accent); }

/* 右侧信息栏 */
.hero-meta {
  border-top: 1px solid var(--fg);
  padding-top: 18px;
}

.hero-meta dl { display: grid; gap: 22px; }

.hero-meta dt {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 4px;
}

.hero-meta dd { font-size: 0.925rem; color: var(--fg); }

/* ---------- 区块标题 ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--fg);
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.section-head .count {
  font-size: 0.8rem;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.section-note {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 22px 0 6px;
  max-width: 56ch;
}

/* ---------- 列表行（作品 / 文章） ---------- */
.list { list-style: none; }

.row { border-bottom: 1px solid var(--line); }

.row > a,
.row > .row-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 32px;
  align-items: baseline;
  padding: 26px 4px;
  transition: background 0.3s var(--ease), padding 0.3s var(--ease);
}

.row:first-child { border-top: 0; }

.row > a:hover { background: rgba(0, 0, 0, 0.018); padding-left: 12px; }

.row-title {
  font-size: 1.075rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  transition: color 0.25s var(--ease);
}

.row > a:hover .row-title { color: var(--accent); }

.row-desc {
  grid-column: 1;
  font-size: 0.925rem;
  color: var(--muted);
  margin-top: 6px;
}

.row-meta {
  grid-row: 1;
  grid-column: 2;
  font-size: 0.8rem;
  color: var(--faint);
  letter-spacing: 0.04em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.tag {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.72rem;
  color: var(--muted);
  vertical-align: 1px;
}

/* ---------- 关于 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.about-body { display: grid; gap: 20px; max-width: 62ch; }

.about-body p { color: var(--muted); line-height: 1.85; }

.about-body strong { color: var(--fg); font-weight: 600; }

/* ---------- 联系 ---------- */
.contact {
  border-top: 1px solid var(--fg);
  padding-top: 48px;
}

.contact-mail {
  display: inline-block;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--fg);
  border-bottom: 2px solid var(--line-strong);
  padding-bottom: 4px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.contact-mail:hover { color: var(--accent); border-color: var(--accent); }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 44px;
}

.contact-links a {
  font-size: 0.9rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.25s var(--ease);
}

.contact-links a:hover { color: var(--accent); }

.contact-links svg {
  width: 11px; height: 11px;
  opacity: 0.55;
}

/* ---------- 入场动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: calc(var(--i, 0) * 70ms);
}

[data-reveal].in {
  opacity: 1;
  transform: none;
}

/* ---------- 跳转链接（无障碍） ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--fg);
  color: var(--bg);
  padding: 12px 20px;
  z-index: 100;
}

.skip:focus { left: 20px; top: 20px; }

[id] { scroll-margin-top: 90px; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  :root { --gap-section: 72px; }

  .hero { padding-top: 64px; }

  .hero-grid,
  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .hero-meta { max-width: 420px; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 20px; }

  .nav nav { gap: 18px; }
  .nav nav a { font-size: 0.85rem; }

  .row > a,
  .row > .row-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .row-meta {
    grid-row: auto;
    grid-column: 1;
    margin-top: 10px;
  }

  .hero-actions { gap: 20px; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  * { transition-duration: 0.01ms !important; }
}

/* ---------- 打印 ---------- */
@media print {
  .nav, .hero-actions { display: none; }
  body { background: #fff; }
  .section { padding: 24px 0; }
}