/* ===========================================================
   站点样式 —— 单文件，无外部依赖（不引用任何境外字体/CDN）
   改配色只改 :root 里的变量即可
   =========================================================== */

:root {
  --bg: #fbfaf7;
  --bg-elev: #ffffff;
  --ink: #1b1a17;
  --ink-soft: #5c5a52;
  --ink-faint: #8d8a80;
  --line: #e4e1d8;
  --accent: #b3402a;
  --accent-soft: #f4e7e2;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(27, 26, 23, .04), 0 8px 24px rgba(27, 26, 23, .05);
  --max: 1080px;
  --font-sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-serif: "Georgia", "Songti SC", "Noto Serif CJK SC", "SimSun", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211;
    --bg-elev: #1a1a18;
    --ink: #ecebe4;
    --ink-soft: #a9a69c;
    --ink-faint: #7d7a71;
    --line: #2c2b27;
    --accent: #e0705a;
    --accent-soft: #2a1d19;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

img { max-width: 100%; height: auto; display: block; }

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

/* ---------- 布局 ---------- */

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 页头 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 64px;
}

.brand {
  font-family: var(--font-serif);
  font-size: 19px;
  letter-spacing: .06em;
  text-decoration: none;
  font-weight: 600;
}
.brand .dot { color: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav a {
  text-decoration: none;
  font-size: 14.5px;
  color: var(--ink-soft);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  appearance: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 7px 10px;
  color: var(--ink);
  cursor: pointer;
}

/* ---------- 首页 Hero ---------- */

.hero {
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 72px;
  align-items: end;
}

/* 右侧“现在”信息区 */
.hero-now {
  border-left: 1px solid var(--line);
  padding-left: 30px;
  padding-bottom: 6px;
}

.now-label {
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 18px;
}

.hero-now dl { margin: 0; }
.hero-now dl > div { margin-bottom: 14px; }
.hero-now dl > div:last-child { margin-bottom: 0; }

.hero-now dt {
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: .08em;
  margin-bottom: 2px;
}

.hero-now dd {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.hero .eyebrow {
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 22px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  margin: 0 0 22px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lede {
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  color: var(--ink-soft);
  max-width: 34em;
  margin: 0 0 34px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-size: 14.5px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  transition: transform .16s ease, opacity .16s ease;
}
.btn:hover { transform: translateY(-1px); opacity: .92; }

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn.ghost:hover { border-color: var(--ink-faint); }

/* ---------- 区块 ---------- */

.section { padding: 74px 0; border-bottom: 1px solid var(--line); }
.section:last-of-type { border-bottom: 0; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 34px;
}
.section-head .num {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .1em;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 600;
  margin: 0;
  letter-spacing: .01em;
}

.prose { max-width: 42em; color: var(--ink-soft); }
.prose p { margin: 0 0 1em; }
.prose strong { color: var(--ink); font-weight: 600; }

/* ---------- 卡片 ---------- */

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow);
  transition: transform .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--ink-faint); }

.card h3 {
  font-size: 16.5px;
  margin: 0 0 10px;
  font-weight: 600;
  letter-spacing: .01em;
}
.card p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.tag {
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 3px 10px;
}

/* ---------- 文章列表 ---------- */

.list { list-style: none; margin: 0; padding: 0; }

.list li { border-top: 1px solid var(--line); }
.list li:last-child { border-bottom: 1px solid var(--line); }

.list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 18px 4px;
  text-decoration: none;
  transition: padding-left .18s ease, color .18s ease;
}
.list a:hover { padding-left: 10px; color: var(--accent); }

.list .title { font-size: 15.5px; }
.list time { font-size: 13px; color: var(--ink-faint); white-space: nowrap; }

/* ---------- 联系 ---------- */

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

/* ---------- 页脚（备案号区域，务必保留居中） ---------- */

.site-footer {
  text-align: center;
  padding: 44px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 13px;
  line-height: 2;
}

.site-footer .copyright { margin: 0; }

.site-footer .beian {
  margin: 4px 0 0;
  font-size: 12.5px;
  letter-spacing: .02em;
}

.site-footer .beian a {
  color: var(--ink-faint);
  text-decoration: none;
}
.site-footer .beian a:hover {
  color: var(--ink);
  text-decoration: underline;
}

.site-footer .sep { margin: 0 8px; opacity: .5; }

/* ---------- 内页 ---------- */

.page-head { padding: 72px 0 40px; border-bottom: 1px solid var(--line); }
.page-head h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 600;
  margin: 0 0 12px;
}
.page-head p { margin: 0; color: var(--ink-soft); max-width: 40em; }

.page-body { padding: 52px 0 80px; }
.page-body h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin: 2.2em 0 .7em;
  font-weight: 600;
}
.page-body h2:first-child { margin-top: 0; }
.page-body ul { color: var(--ink-soft); padding-left: 1.2em; }

.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 1.4em 0;
}

/* ---------- 404 ---------- */

.center-page {
  min-height: 62vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 80px 24px;
}
.center-page .code {
  font-family: var(--font-serif);
  font-size: clamp(4rem, 14vw, 7rem);
  line-height: 1;
  color: var(--accent);
  margin: 0 0 8px;
}
.center-page p { color: var(--ink-soft); margin: 0 0 26px; }

/* ---------- 响应式 ---------- */

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
  }
  .hero-now {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 26px 0 0;
  }
  .hero-now dl { display: flex; flex-wrap: wrap; gap: 10px 40px; }
  .hero-now dl > div { margin: 0; }
}

@media (max-width: 720px) {
  .hero { padding: 64px 0 52px; }
  .section { padding: 54px 0; }
  .section-head { margin-bottom: 26px; }

  .nav-toggle { display: inline-flex; }

  .nav {
    position: absolute;
    top: 64px;
    right: 16px;
    left: 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--bg-elev);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 10px 16px;
    box-shadow: var(--shadow);
    display: none;
  }
  .nav[data-open="true"] { display: flex; }
  .nav a { padding: 9px 0; width: 100%; border-bottom: 0; }

  .list a { flex-direction: column; gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* 手动切换深色（后续接切换按钮时用 <html data-theme="dark">） */
:root[data-theme="dark"] {
  --bg: #121211;
  --bg-elev: #1a1a18;
  --ink: #ecebe4;
  --ink-soft: #a9a69c;
  --ink-faint: #7d7a71;
  --line: #2c2b27;
  --accent: #e0705a;
  --accent-soft: #2a1d19;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
}

/* ---------- 空状态（作品尚未发布） ---------- */

.empty-state {
  border: 1px dashed color-mix(in srgb, var(--ink-faint) 45%, transparent);
  border-radius: var(--radius);
  padding: 42px 34px;
  background: color-mix(in srgb, var(--bg-elev) 55%, transparent);
}

.empty-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--ink);
}

.empty-title::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 12px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 3px;
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .25; }
}

.empty-text {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-size: 14.5px;
  max-width: 46em;
}

.empty-hint { margin: 0; font-size: 13.5px; color: var(--ink-faint); }
.empty-hint a { color: var(--accent); text-decoration: none; }
.empty-hint a:hover { text-decoration: underline; }

.card-link { margin: 14px 0 0; font-size: 14px; }
.card-link a { color: var(--accent); text-decoration: none; }
.card-link a:hover { text-decoration: underline; }