* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family:
    "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC",
    "Source Han Sans SC", "Heiti SC", Arial, sans-serif;
}

body {
  background: #000;
  color: #fff;
  min-height: 100vh;
}

a {
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: 99;
  padding: 15px 20px;
  border-bottom: 1px solid rgba(249, 224, 63, 0.3);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: #f9e03f;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  font-size: 16px;
  opacity: 0.9;
}

.nav-links a:hover,
.nav-links a.active {
  color: #f9e03f;
}

.ecg {
  height: 50px;
  background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 1200 60" xmlns="http://www.w3.org/2000/svg"><path d="M0,30 L50,30 L70,10 L90,50 L110,30 L160,30 L180,10 L200,50 L220,30 L270,30 L290,10 L310,50 L330,30 L380,30 L400,10 L420,50 L440,30 L490,30 L510,10 L530,50 L550,30 L600,30 L620,10 L640,50 L660,30 L710,30 L730,10 L750,50 L770,30 L820,30 L840,10 L860,50 L880,30 L930,30 L950,10 L970,50 L990,30 L1040,30 L1060,10 L1080,50 L1100,30 L1150,30 L1170,10 L1190,50 L1200,30" stroke="white" stroke-width="2" fill="none"/></svg>')
    repeat-x;
  background-size: auto 100%;
  margin-top: 72px;
}

.hero {
  text-align: center;
  padding: 60px 20px 20px;
}

.hero h1 {
  font-size: 56px;
  color: #f9e03f;
  margin-bottom: 10px;
  text-shadow: 2px 2px 4px #000;
}

.hero p {
  font-size: 18px;
  opacity: 0.9;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 20px;
  min-height: 52vh;
  max-width: 1400px;
  margin: 0 auto;
}

.card {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  text-decoration: none;
  min-height: 260px;
}

.card:hover {
  transform: scale(1.02);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), transparent);
}

.card .text {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 25px 15px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.82), transparent);
}

.card h2 {
  font-size: 24px;
  margin-bottom: 6px;
}

.card p {
  font-size: 14px;
  opacity: 0.92;
}

.c1 {
  background: linear-gradient(135deg, #ff99cc, #ffddcc);
}

.c2 {
  background: linear-gradient(135deg, #ffdd66, #ffee99);
}

.c3 {
  background: linear-gradient(135deg, #66aaff, #aaddff);
}

.c4 {
  background: linear-gradient(135deg, #ff6666, #ffaaaa);
}

.section {
  padding: 30px 0 70px;
}

.section h2 {
  color: #f9e03f;
  margin-bottom: 16px;
}

.section-intro {
  opacity: 0.9;
  margin-bottom: 20px;
}

.search-row {
  margin-bottom: 14px;
}

.search-input {
  width: 100%;
  max-width: 420px;
  background: #101010;
  color: #fff;
  border: 1px solid rgba(249, 224, 63, 0.5);
  border-radius: 8px;
  padding: 9px 12px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.chip {
  border: 1px solid #f9e03f;
  border-radius: 999px;
  background: transparent;
  color: #f9e03f;
  padding: 6px 14px;
  cursor: pointer;
}

.chip.active,
.chip:hover {
  background: #f9e03f;
  color: #000;
}

.list {
  display: grid;
  gap: 16px;
}

.item {
  border: 1px solid rgba(249, 224, 63, 0.35);
  border-radius: 10px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.item h3 {
  margin-bottom: 8px;
}

.meta {
  font-size: 13px;
  color: #f9e03f;
  margin-bottom: 10px;
}

.item p {
  line-height: 1.65;
  opacity: 0.95;
}

.markdown-body {
  display: grid;
  gap: 12px;
  line-height: 1.8;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  color: #f9e03f;
}

.markdown-body ul {
  padding-left: 20px;
}

.markdown-body li {
  margin-bottom: 6px;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
  margin: 12px 0;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.markdown-body th,
.markdown-body td {
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 8px 10px;
  text-align: left;
}

.markdown-body th {
  background: rgba(249, 224, 63, 0.14);
  color: #f9e03f;
}

.markdown-body blockquote {
  margin: 0;
  padding: 8px 12px;
  border-left: 3px solid #f9e03f;
  background: rgba(0, 0, 0, 0.35);
  color: rgba(255, 255, 255, 0.92);
}

.markdown-body hr {
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  margin: 16px 0;
}

/* marked 等解析器输出的是 <pre><code>，需单独做「代码块」视觉，勿只依赖 .md-code 类 */
.markdown-body pre {
  margin: 14px 0;
  padding: 14px 16px;
  overflow-x: auto;
  background: #0d0d0d;
  border: 1px solid rgba(249, 224, 63, 0.28);
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.35);
}

.markdown-body pre code {
  display: block;
  width: max-content;
  min-width: 100%;
  padding: 0;
  margin: 0;
  background: transparent !important;
  border: none !important;
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", "Consolas", monospace;
  font-size: 0.9em;
  line-height: 1.55;
  /* 不设 color：交给 highlight.js 主题（.hljs-*）着色，更接近 VS Code/GitHub */
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}

/* hljs 未加载时占位色 */
.markdown-body pre code:not(.hljs) {
  color: rgba(255, 248, 230, 0.95);
}

.markdown-body :not(pre) > code {
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(249, 224, 63, 0.12);
  border: 1px solid rgba(249, 224, 63, 0.22);
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", "Consolas", monospace;
  font-size: 0.88em;
  color: #f9e03f;
}

.md-code {
  overflow-x: auto;
  background: #0d0d0d;
  border: 1px solid rgba(249, 224, 63, 0.25);
  border-radius: 8px;
  padding: 14px;
}

.md-tip {
  color: #ffb86c;
}

.title-link {
  text-decoration: none;
  color: #fff;
}

.title-link:hover {
  color: #f9e03f;
}

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

.comment-form input,
.comment-form textarea {
  width: 100%;
  background: #0f0f0f;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 9px 12px;
}

.field-label-admin {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2px;
}

.admin-session-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-upload-zone {
  position: relative;
  min-height: 112px;
  border: 1px dashed rgba(249, 224, 63, 0.48);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.38);
  padding: 16px 14px 14px;
  text-align: center;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.admin-upload-zone.is-drag {
  border-color: #f9e03f;
  background: rgba(249, 224, 63, 0.08);
  box-shadow: 0 0 0 1px rgba(249, 224, 63, 0.35);
}

.admin-upload-zone.has-file {
  border-style: solid;
  border-color: rgba(249, 224, 63, 0.55);
}

.admin-upload-zone--compact {
  min-height: 86px;
  padding: 12px 10px;
}

.admin-file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.admin-file-open-btn {
  margin-bottom: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(249, 224, 63, 0.55);
  background: rgba(249, 224, 63, 0.12);
  color: #f9e03f;
  font-weight: 600;
  cursor: pointer;
}

.admin-file-open-btn:hover {
  background: rgba(249, 224, 63, 0.22);
}

.admin-upload-copy {
  display: grid;
  gap: 4px;
}

.admin-upload-title {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
}

.admin-upload-filename {
  font-size: 13px;
  color: #f9e03f;
  word-break: break-all;
}

.subtle {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

.admin-snippet-box {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.admin-upload-ok {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 600;
  color: #b8f5c0;
}

.api-missing-card pre {
  text-align: left;
}

.comment-form button {
  width: max-content;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  background: #f9e03f;
  color: #000;
  cursor: pointer;
  font-weight: 700;
}

.comments {
  margin-top: 12px;
  display: grid;
  gap: 8px;
}

.comment {
  border-left: 3px solid #f9e03f;
  padding: 8px 10px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 6px;
}

.comment .author {
  color: #f9e03f;
  font-size: 13px;
}

.inline-actions {
  margin-top: 8px;
  display: flex;
  gap: 10px;
  align-items: center;
}

.danger-btn {
  width: max-content;
  margin-top: 8px;
  border: 1px solid #ff7a7a;
  background: transparent;
  color: #ff7a7a;
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
}

.danger-btn:hover {
  background: #ff7a7a;
  color: #000;
}

.pager {
  margin-top: 18px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.item code {
  color: #f9e03f;
}

.auth-card {
  max-width: 520px;
}

.error-text {
  margin-top: 8px;
  color: #ff7a7a;
}

.about-box {
  border: 1px solid rgba(249, 224, 63, 0.35);
  border-radius: 10px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.04);
  line-height: 1.8;
}

/* 关于页：参考「双列卡片 + Hi 标题」版式，视觉与全站深色 + 金色一致 */
.about-page .about-sheet {
  max-width: 880px;
  margin: 0 auto;
}

.about-sheet-head h3 {
  color: #fff;
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-bottom: 6px;
  line-height: 1.35;
}

.about-hi-line {
  position: relative;
  display: inline-block;
  color: #f9e03f;
  margin-right: 8px;
}

.about-hi-line::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 3px;
  background: #f9e03f;
  border-radius: 2px;
  opacity: 0.95;
}

.about-name {
  color: #fff;
}

.about-sheet-tagline {
  margin-top: 14px;
  padding-top: 4px;
}

.about-blurb {
  margin-top: 20px;
  line-height: 1.65;
  opacity: 0.95;
}

.about-links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 22px;
}

.about-link-tile {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid rgba(249, 224, 63, 0.3);
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.35);
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.2s,
    background 0.2s;
}

.about-link-tile:hover {
  border-color: rgba(249, 224, 63, 0.55);
  background: rgba(249, 224, 63, 0.08);
}

.about-link-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(249, 224, 63, 0.12);
  border: 1px solid rgba(249, 224, 63, 0.35);
}

.about-link-icon svg {
  width: 22px;
  height: 22px;
  fill: #f9e03f;
}

.about-link-title {
  font-weight: 600;
  color: #fff;
}

.about-link-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.76);
  margin-top: 4px;
}

.about-hint {
  opacity: 0.62;
  font-size: 12px;
}

.about-foot {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(249, 224, 63, 0.22);
  font-size: 13px;
  color: #f9e03f;
  opacity: 0.72;
}

@media (max-width: 640px) {
  .about-links-grid {
    grid-template-columns: 1fr;
  }
}

.footer-title {
  text-align: center;
  padding: 24px 20px 60px;
}

.footer-title .title {
  font-size: 50px;
  color: #f9e03f;
}

.footer-title .sub {
  margin-top: 8px;
  color: #f9e03f;
}

@media (max-width: 1000px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .nav-inner {
    flex-direction: column;
    gap: 10px;
  }

  .ecg {
    margin-top: 108px;
  }

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

  .hero h1 {
    font-size: 42px;
  }
}