/* ============================================================
   moeyuu · 个人博客样式
   变量集中在 :root，改配色只需改这几行
   ============================================================ */

:root {
  --bg:        #0b0e14;
  --bg-soft:   #11151d;
  --card:      #151a24;
  --line:      #232b3a;
  --line-soft: #1b2230;

  --fg:        #e6edf3;
  --fg-dim:    #9aa7b8;
  --fg-mute:   #667385;

  --accent:    #4f9cf9;
  --accent-2:  #7ee787;
  --accent-soft: rgba(79, 156, 249, .12);

  --radius:    14px;
  --radius-sm: 9px;
  --maxw:      780px;
  --maxw-wide: 1080px;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ---------- 浅色主题 ---------- */
[data-theme="light"] {
  --bg:        #fbfbfd;
  --bg-soft:   #f3f5f9;
  --card:      #ffffff;
  --line:      #e3e8f0;
  --line-soft: #eef1f6;

  --fg:        #1a2029;
  --fg-dim:    #5a6577;
  --fg-mute:   #8d97a6;

  --accent:    #1f6feb;
  --accent-2:  #1a7f37;
  --accent-soft: rgba(31, 111, 235, .08);
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background .25s ease, color .25s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* 防止任何子元素把页面撑出横向滚动 */
  overflow-x: hidden;
  overflow-wrap: break-word;
}

/* 移动端彻底禁止横向溢出 */
@media (max-width: 720px) {
  html, body { overflow-x: hidden; max-width: 100%; }
}

a { color: var(--accent); text-decoration: none; transition: opacity .15s; }
a:hover { opacity: .78; }

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

/* ============ 顶部导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.nav {
  max-width: var(--maxw-wide);
  margin: 0 auto;
  padding: 0 24px;
  height: 62px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

/* 品牌在左，链接居中，按钮在右 —— 用绝对定位把链接真正居中 */
.nav .brand { flex: 0 0 auto; }
.nav-actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
}
.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.brand {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 9px;
}
.brand:hover { opacity: 1; }
.brand-mark {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-size: 14px; font-weight: 800; color: #08101c;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  color: var(--fg-dim);
  font-size: 14.5px;
  padding: 7px 12px;
  border-radius: 8px;
  display: block;
  transition: .16s;
}
.nav-links a:hover { color: var(--fg); background: var(--bg-soft); opacity: 1; }
.nav-links a.active { color: var(--fg); background: var(--accent-soft); }

.theme-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg-dim);
  width: 34px; height: 34px;
  border-radius: 9px;
  cursor: pointer;
  display: grid; place-items: center;
  font-size: 15px;
  transition: .16s;
}
.theme-btn:hover { color: var(--fg); border-color: var(--accent); }

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--fg-dim);
  width: 34px; height: 34px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 16px;
}

/* ============ 布局容器 ============ */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; width: 100%; }
.container-wide { max-width: var(--maxw-wide); margin: 0 auto; padding: 0 24px; width: 100%; }
main { flex: 1; padding: 56px 0 90px; }

/* ============ 首页 Hero ============ */
.hero { padding: 34px 0 52px; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .07em; text-transform: uppercase;
  color: var(--accent-2);
  background: color-mix(in srgb, var(--accent-2) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-2) 28%, transparent);
  padding: 5px 12px; border-radius: 999px;
  margin-bottom: 22px;
}
.hero-eyebrow i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  animation: blink 2.4s infinite;
}
@keyframes blink { 0%,100% { opacity: 1 } 50% { opacity: .28 } }

.hero h1 {
  font-size: clamp(30px, 5.4vw, 46px);
  line-height: 1.16;
  letter-spacing: -.028em;
  font-weight: 750;
  margin-bottom: 18px;
}
.grad {
  background: linear-gradient(96deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 17px;
  color: var(--fg-dim);
  max-width: 620px;
  line-height: 1.8;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px;
  border-radius: 9px;
  font-size: 14.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: .16s;
}
.btn-primary {
  background: var(--accent);
  color: #06121f;
}
.btn-primary:hover { opacity: 1; filter: brightness(1.1); transform: translateY(-1px); }
.btn-ghost {
  border-color: var(--line);
  color: var(--fg-dim);
  background: transparent;
}
.btn-ghost:hover { color: var(--fg); border-color: var(--accent); opacity: 1; }

/* ============ 区块标题 ============ */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin: 54px 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}
.section-head h2 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
}
.section-head .more { font-size: 13.5px; color: var(--fg-mute); }
.section-head .more:hover { color: var(--accent); }

/* ============ 文章卡片 ============ */
.post-list { display: flex; flex-direction: column; gap: 2px; }

.post-card {
  display: block;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
  color: inherit;
  transition: .18s;
}
.post-card:hover { opacity: 1; }
.post-card:hover .post-title { color: var(--accent); }

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--fg-mute);
  margin-bottom: 7px;
}
.post-meta .sep { opacity: .45; }
.tag-pill {
  font-size: 11.5px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}

.post-title {
  font-size: 20px;
  font-weight: 680;
  letter-spacing: -.015em;
  line-height: 1.4;
  margin-bottom: 8px;
  transition: color .16s;
}
.post-excerpt {
  font-size: 14.5px;
  color: var(--fg-dim);
  line-height: 1.72;
}

/* ============ 页面头（关于/列表/文章） ============ */
.page-head { margin-bottom: 40px; }
.page-head h1 {
  font-size: clamp(26px, 4.2vw, 36px);
  font-weight: 750;
  letter-spacing: -.026em;
  line-height: 1.2;
  margin-bottom: 12px;
}
.page-head .desc { color: var(--fg-dim); font-size: 16px; }

/* ============ 关于页 ============ */
.profile {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 26px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.avatar {
  width: 78px; height: 78px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-size: 32px; font-weight: 800; color: #08101c;
  flex-shrink: 0;
}
.profile-info h2 { font-size: 21px; font-weight: 700; margin-bottom: 4px; letter-spacing: -.015em; }
.profile-info p { color: var(--fg-dim); font-size: 14.5px; }

.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin: 18px 0 34px;
}
.skill {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.skill .sk-name { font-size: 14px; font-weight: 640; margin-bottom: 3px; }
.skill .sk-desc { font-size: 12.5px; color: var(--fg-mute); }

/* ============ 文章正文 ============ */
.article-head { margin-bottom: 34px; padding-bottom: 24px; border-bottom: 1px solid var(--line-soft); }
.article-head h1 {
  font-size: clamp(27px, 4.4vw, 38px);
  font-weight: 750;
  letter-spacing: -.028em;
  line-height: 1.24;
  margin: 12px 0 16px;
}

.prose { font-size: 16.5px; line-height: 1.85; color: var(--fg); }
.prose > * + * { margin-top: 1.35em; }
.prose h2 {
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -.018em;
  margin-top: 2.2em;
  line-height: 1.35;
}
.prose h3 {
  font-size: 18.5px;
  font-weight: 680;
  margin-top: 1.9em;
  letter-spacing: -.012em;
}
.prose p { color: var(--fg-dim); }
.prose strong { color: var(--fg); font-weight: 660; }
.prose ul, .prose ol { padding-left: 1.4em; color: var(--fg-dim); }
.prose li + li { margin-top: .45em; }
.prose li::marker { color: var(--fg-mute); }

.prose blockquote {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 18px;
  color: var(--fg-dim);
  font-style: italic;
}

.prose code {
  font-family: var(--mono);
  font-size: .875em;
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
  padding: 2px 6px;
  border-radius: 5px;
  color: var(--accent-2);
  word-break: break-word;
}

.prose pre {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.68;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--fg);
  font-size: inherit;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--line-soft);
  margin: 2.6em 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.prose th, .prose td {
  border: 1px solid var(--line);
  padding: 9px 13px;
  text-align: left;
}
.prose th { background: var(--bg-soft); font-weight: 660; color: var(--fg); }
.prose td { color: var(--fg-dim); }

.article-foot {
  margin-top: 54px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ============ 列表页筛选 ============ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}
.filter-btn {
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
  transition: .16s;
  font-family: inherit;
}
.filter-btn:hover { color: var(--fg); border-color: var(--fg-mute); }
.filter-btn.on {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent);
}

.empty-state {
  padding: 44px 0;
  text-align: center;
  color: var(--fg-mute);
  font-size: 14.5px;
}

/* ============ 测试版横幅 ============ */
/* 横幅参与正常文档流（不固定），向下滚动时自然离开视野，
   不会与 sticky 页头重叠，也不会遮住内容 */
.test-banner {
  position: relative;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .01em;
  color: #1b1300;
  background: repeating-linear-gradient(
    45deg,
    #ffd54f,
    #ffd54f 12px,
    #ffca28 12px,
    #ffca28 24px
  );
  border-bottom: 1px solid #e0a800;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .28);
  text-align: center;
}
.test-banner .tb-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #1b1300;
  color: #ffd54f;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.test-banner .tb-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff5252;
  animation: blink 1.6s infinite;
}
.test-banner b { font-weight: 800; }
.test-banner .tb-sub { font-weight: 500; opacity: .82; }
.test-banner .tb-sub u { text-decoration-thickness: 2px; }

/* ============ 内容免责声明块 ============ */
.disclaim {
  max-width: var(--maxw);
  margin: 22px auto 0;
  padding: 13px 18px;
  border: 1px solid #e0a800;
  border-left: 4px solid #e0a800;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, #ffd54f 9%, var(--card));
  color: var(--fg-dim);
  font-size: 13.5px;
  line-height: 1.75;
}
.disclaim strong { color: var(--fg); font-weight: 700; }
.disclaim > strong:first-child {
  display: inline-block;
  color: #e0a800;
  margin-right: 8px;
}

/* 有横幅时：让整个顶栏（含页头）在一起滚动时停在横幅下方 */
body.has-test-banner .site-header {
  top: 0;
  margin-top: 0;
}
body.has-test-banner main { padding-top: 22px; }

@media (max-width: 720px) {
  .test-banner { font-size: 11.5px; padding: 7px 12px; gap: 6px; line-height: 1.5; }
  .test-banner .tb-sub { display: none; }
}

/* 打印时不显示 */
@media print {
  .test-banner { display: none !important; }
}

/* ============ 敬请期待页 ============ */
.coming {
  text-align: center;
  padding: 46px 0 40px;
  max-width: 560px;
  margin: 0 auto;
}

.coming-mark {
  width: 88px;
  height: 88px;
  margin: 0 auto 26px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  font-size: 38px;
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 22%, var(--card)),
    color-mix(in srgb, var(--accent-2) 18%, var(--card)));
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
  animation: floaty 4.5s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}

.coming h1 {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 750;
  line-height: 1.24;
  letter-spacing: -.028em;
  margin: 18px 0 0;
}

.coming-desc {
  margin-top: 18px;
  color: var(--fg-dim);
  font-size: 16px;
  line-height: 1.8;
}

.coming-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 26px 0 0;
}
.coming-tags span {
  font-size: 12.5px;
  padding: 5px 14px;
  border-radius: 999px;
  color: var(--fg-mute);
  border: 1px dashed var(--line);
  background: var(--card);
}

.coming-meter {
  margin: 30px auto 0;
  max-width: 340px;
  text-align: center;
}
.coming-meter-bar {
  height: 5px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
  position: relative;
}
.coming-meter-bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: slide 2.6s ease-in-out infinite;
}
@keyframes slide {
  0%   { width: 18%; transform: translateX(0); }
  50%  { width: 52%; }
  100% { width: 18%; transform: translateX(320%); }
}
.coming-meter-label {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: .04em;
}

.coming .hero-actions { margin-top: 30px; }

.coming-note {
  margin-top: 26px;
  font-size: 13px;
  color: var(--fg-mute);
}

@media (max-width: 720px) {
  .coming { padding: 26px 0 28px; }
  .coming-mark { width: 72px; height: 72px; font-size: 30px; border-radius: 20px; }
}

/* ============ 页脚 ============ */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 28px 0 34px;
  margin-top: auto;
}
.footer-inner {
  max-width: var(--maxw-wide);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--fg-mute);
}
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: var(--fg-mute); }
.footer-links a:hover { color: var(--accent); }

/* ============ 响应式 ============ */
@media (max-width: 720px) {
  main { padding: 34px 0 64px; }
  .nav { height: 56px; padding: 0 16px; }
  .container, .container-wide, .footer-inner { padding: 0 18px; }

  .nav-toggle { display: grid; place-items: center; }

  .nav-links {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    transform: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px 16px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    display: none;
    z-index: 60;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px 12px; }

  .hero { padding: 14px 0 34px; }
  .profile { padding: 20px; gap: 18px; }
  .avatar { width: 60px; height: 60px; border-radius: 16px; font-size: 25px; }
  .post-title { font-size: 18px; }
  .prose { font-size: 16px; }
  .prose pre { padding: 14px 15px; font-size: 12.5px; border-radius: 8px; }
}

/* ============ 打印 ============ */
@media print {
  .site-header, .site-footer, .hero-actions, .filter-bar, .article-foot { display: none !important; }
  body { background: #fff; color: #000; }
  .prose p, .prose li, .post-excerpt { color: #333; }
  main { padding: 0; }
}