/* ============================================================
   enhance.css — UX 升级层
   无障碍 · 响应式导航 · 滚动渐入 · 详情页组件 · 灯箱 · Toast
   与 orbit.css 共用 :root 设计变量（gold / cyan / glass / 字体）
   ============================================================ */

/* ---------- 无障碍：跳转链接 & 焦点态 ---------- */
.skip-link {
  position: fixed;
  top: -60px;
  left: 12px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--gold);
  color: #081327;
  font-family: var(--font-pixel);
  font-size: 15px;
  border-radius: 6px;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 12px;
}

a:focus-visible,
button:focus-visible,
.orbit-planet:focus-visible,
.article-card:focus-visible,
.project-showcase-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

body.nav-locked {
  overflow: hidden;
}

/* ---------- 响应式汉堡导航 ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.28s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 800px) {
  .nav-toggle {
    display: flex;
  }
  .nav-brand span {
    display: inline;
  }
  #primary-nav {
    position: fixed;
    top: 66px;
    left: 0;
    right: 0;
    padding: 8px 20px 22px;
    background: rgba(4, 13, 30, 0.96);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    opacity: 0;
    transform: translateY(-14px);
    pointer-events: none;
    transition: opacity 0.26s ease, transform 0.26s ease;
    box-shadow: 0 22px 44px rgba(0, 0, 0, 0.4);
  }
  #primary-nav.nav-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  #primary-nav .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  #primary-nav .nav-links li {
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
  }
  #primary-nav .nav-links a {
    display: block;
    padding: 15px 6px;
    font-size: 17px;
  }
  #primary-nav .nav-links a.nav-active {
    border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
    color: var(--gold);
  }
}

/* ---------- 滚动渐入 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.revealed {
  opacity: 1;
  transform: none;
}

/* ---------- Toast ---------- */
.xj-toast {
  position: fixed;
  left: 50%;
  bottom: 40px;
  z-index: 1200;
  transform: translate(-50%, 20px);
  max-width: min(90vw, 460px);
  padding: 14px 22px;
  background: rgba(6, 16, 34, 0.94);
  border: 1px solid var(--gold-soft);
  border-radius: 10px;
  color: #fff;
  font-family: var(--font-pixel);
  font-size: 16px;
  letter-spacing: 0.5px;
  text-align: center;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.42);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.xj-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 图表灯箱 ---------- */
.xj-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5vw;
  background: rgba(3, 9, 20, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.26s ease;
}
.xj-lightbox.open {
  opacity: 1;
  pointer-events: auto;
}
.xj-lightbox img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: 10px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  transform: scale(0.96);
  transition: transform 0.26s ease;
}
.xj-lightbox.open img {
  transform: scale(1);
}
.xj-lightbox-close {
  position: absolute;
  top: 22px;
  right: 26px;
  width: 46px;
  height: 46px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.xj-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* ---------- 详情页：CTA 按钮 ---------- */
.hero-meta {
  margin: 4px 0 6px;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--font-pixel);
  font-size: 15px;
  letter-spacing: 1px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 10px;
}
.hero-demo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 0;
  padding: 12px 22px;
  background: rgba(125, 228, 238, 0.08);
  border: 1px solid var(--cyan-soft);
  border-radius: 10px;
  color: var(--cyan);
  font-family: var(--font-pixel);
  font-size: 15px;
  letter-spacing: 0.5px;
  text-align: center;
  white-space: pre-line;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 8px;
  font-family: var(--font-pixel);
  font-size: 17px;
  letter-spacing: 1px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease,
    border-color 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold), #f7d47e);
  color: #22160a;
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 10px 30px rgba(241, 189, 69, 0.28);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(241, 189, 69, 0.42);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  color: #fff;
  box-shadow: 0 12px 32px rgba(125, 228, 238, 0.2);
}

/* ---------- 详情页：数据亮点 ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  width: min(900px, 100%);
}
.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  text-align: center;
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-soft);
}
.stat-num {
  font-family: var(--font-press);
  font-size: clamp(26px, 5vw, 40px);
  color: var(--gold);
  text-shadow: 0 0 22px var(--gold-soft);
  line-height: 1;
}
.stat-label {
  font-family: var(--font-pixel);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.5;
}

/* ---------- 详情页：Agent 协同流程 ---------- */
.agent-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
}
.agent-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1 1 150px;
  min-width: 140px;
  padding: 18px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  text-align: center;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.agent-node:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 12px 30px rgba(125, 228, 238, 0.16);
}
.agent-node-debate {
  border-color: rgba(241, 189, 69, 0.4);
}
.agent-node-judge {
  border-color: rgba(241, 189, 69, 0.55);
  background: rgba(241, 189, 69, 0.06);
}
.agent-emoji {
  font-size: 30px;
  line-height: 1;
}
.agent-name {
  font-family: var(--font-pixel);
  font-size: 17px;
  color: #fff;
  letter-spacing: 0.5px;
}
.agent-role {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.58);
  line-height: 1.4;
}
.agent-arrow {
  display: flex;
  align-items: center;
  color: var(--cyan);
  font-size: 24px;
  font-weight: bold;
}
.agent-arrow-loop {
  color: var(--gold);
}
.agent-flow-note {
  margin-top: 20px !important;
  padding-top: 18px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  font-size: 15px !important;
  color: rgba(255, 255, 255, 0.62) !important;
}

/* ---------- 详情页：核心模块网格 ---------- */
.module-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 4px;
}
.module-item {
  padding: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.module-item:hover {
  transform: translateY(-3px);
  border-color: var(--cyan-soft);
}
.module-item h3 {
  margin: 0 0 8px !important;
  font-size: 18px !important;
  color: #fff !important;
}
.module-item p {
  margin: 0 !important;
  font-size: 14px !important;
  line-height: 1.6 !important;
}

/* ---------- 详情页：技术栈 ---------- */
.tech-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.tech-layer {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  align-items: center;
}
.tech-layer-name {
  font-family: var(--font-pixel);
  font-size: 16px;
  color: var(--cyan);
  letter-spacing: 1px;
  text-align: right;
}
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tech-tags span {
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.tech-tags span:hover {
  border-color: var(--gold);
  color: #fff;
}

/* ---------- 详情页：架构分层图 ---------- */
.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.arch-tier {
  width: 100%;
  padding: 18px 20px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  text-align: center;
}
.arch-tier-front {
  background: rgba(125, 228, 238, 0.08);
  border-color: var(--cyan-soft);
}
.arch-tier-proxy {
  background: rgba(255, 255, 255, 0.04);
}
.arch-tier-back {
  background: rgba(241, 189, 69, 0.08);
  border-color: var(--gold-soft);
}
.arch-tier-label {
  display: block;
  font-family: var(--font-pixel);
  font-size: 18px;
  color: #fff;
  margin-bottom: 4px;
}
.arch-tier-desc {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}
.arch-conn {
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  font-family: var(--font-pixel);
}
.arch-tier-data {
  display: flex;
  gap: 12px;
  width: 100%;
}
.arch-store {
  flex: 1;
  padding: 16px 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  font-family: var(--font-pixel);
  font-size: 16px;
  color: #fff;
  text-align: center;
  line-height: 1.5;
}
.arch-store small {
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
}

/* ---------- 详情页：图表画廊 ---------- */
.chart-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.chart-item {
  margin: 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.chart-item:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.3);
}
.chart-item img {
  display: block;
  width: 100%;
  height: 150px;
  object-fit: cover;
  object-position: top;
  background: #fff;
}
.chart-item figcaption {
  padding: 10px 12px;
  font-family: var(--font-pixel);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}
.chart-hint {
  margin-top: 14px !important;
  font-size: 13px !important;
  color: rgba(255, 255, 255, 0.42) !important;
  text-align: center;
}

/* ---------- 详情页组件响应式 ---------- */
@media (max-width: 800px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .chart-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
  .agent-flow {
    flex-direction: column;
    align-items: stretch;
  }
  .agent-arrow {
    justify-content: center;
    transform: rotate(90deg);
  }
  .tech-layer {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .tech-layer-name {
    text-align: left;
  }
  .arch-tier-data {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .stat-grid {
    grid-template-columns: 1fr 1fr;
  }
  .module-grid {
    grid-template-columns: 1fr;
  }
  .chart-gallery {
    grid-template-columns: 1fr;
  }
  .chart-item img {
    height: 180px;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 尊重系统「减弱动态效果」 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .rocket-follower {
    display: none !important;
  }
}

/* ---------- 导航下拉：项目介绍 → 作品列表 ---------- */
.has-dropdown {
  position: relative;
}
.has-dropdown > a .caret {
  font-size: 12px;
  transition: transform 0.22s ease;
  display: inline-block;
}
.has-dropdown:hover > a .caret,
.has-dropdown:focus-within > a .caret {
  transform: rotate(180deg);
}
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 240px;
  margin: 0;
  padding: 8px;
  list-style: none;
  background: rgba(6, 16, 34, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.44);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  transform: translate(-50%, 12px);
  pointer-events: auto;
}
.nav-dropdown::before {
  /* 悬停缓冲，避免鼠标移动到菜单时断开 */
  content: "";
  position: absolute;
  top: -14px;
  left: 0;
  right: 0;
  height: 14px;
}
.nav-dropdown a {
  display: flex !important;
  align-items: center;
  gap: 12px;
  padding: 10px 12px !important;
  border-radius: 8px;
  text-transform: none !important;
  transition: background 0.18s ease;
}
.nav-dropdown a:hover {
  background: rgba(255, 255, 255, 0.06);
}
.nav-dropdown a img {
  width: 34px;
  height: 34px;
  image-rendering: pixelated;
  flex-shrink: 0;
}
.nav-dropdown a span {
  display: flex;
  flex-direction: column;
  line-height: 1.35;
}
.nav-dropdown a strong {
  color: #fff;
  font-size: 16px;
}
.nav-dropdown a small {
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
}

/* 项目介绍区域：卡片容器居中 */
#project-cards {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 100%;
}

.about-more-hint {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-pixel);
  font-size: 15px;
  letter-spacing: 2px;
  text-align: center;
}

/* 移动端：下拉在汉堡面板里直接展开 */
@media (max-width: 800px) {
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    min-width: 0;
    margin: 4px 0 4px 14px;
    padding: 4px;
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.08);
  }
  .has-dropdown > a .caret {
    display: none;
  }
}

/* ---------- 文章详情页 ---------- */
#article-main {
  padding: 78px 20px 52px;
}
.article-view {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 44px);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.article-loading {
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
  padding: 40px 0;
}
.article-head h1 {
  margin: 0 0 14px;
  color: #fff;
  font-family: var(--font-pixel);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1.35;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 4px;
}
.article-tags span {
  padding: 4px 12px;
  background: rgba(125, 228, 238, 0.1);
  border: 1px solid var(--cyan-soft);
  border-radius: 20px;
  font-size: 13px;
  color: var(--cyan);
}
.article-body {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  line-height: 1.9;
}
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4 {
  color: #fff;
  font-family: var(--font-pixel);
  margin: 28px 0 12px;
  line-height: 1.4;
}
.article-body h1 { font-size: 26px; }
.article-body h2 { font-size: 22px; }
.article-body h3 { font-size: 19px; }
.article-body p { margin: 0 0 16px; }
.article-body ul,
.article-body ol { margin: 0 0 16px; padding-left: 24px; }
.article-body li { margin: 6px 0; }
.article-body a { color: var(--cyan); }
.article-body strong { color: #fff; }
.article-body code {
  padding: 2px 7px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--gold);
}
.article-body pre {
  margin: 0 0 18px;
  padding: 16px 18px;
  background: rgba(0, 0, 0, 0.34);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  overflow-x: auto;
}
.article-body pre code {
  padding: 0;
  background: none;
  color: rgba(255, 255, 255, 0.86);
  white-space: pre;
}
.article-body blockquote {
  margin: 0 0 16px;
  padding: 10px 18px;
  border-left: 3px solid var(--cyan);
  background: rgba(125, 228, 238, 0.06);
  color: rgba(255, 255, 255, 0.72);
  border-radius: 0 8px 8px 0;
}
/* README 风格：表格、分割线 */
.article-body .md-table-wrap {
  overflow-x: auto;
  margin: 0 0 18px;
  border-radius: 8px;
}
.article-body table,
.article-body .md-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.article-body th,
.article-body td {
  border: 1px solid rgba(255, 255, 255, 0.13);
  padding: 9px 14px;
  text-align: left;
  line-height: 1.6;
}
.article-body th {
  background: rgba(125, 228, 238, 0.09);
  color: #fff;
  font-family: var(--font-pixel);
  font-weight: normal;
  white-space: nowrap;
}
.article-body tbody tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}
.article-body hr {
  border: none;
  border-top: 1px dashed rgba(255, 255, 255, 0.16);
  margin: 24px 0;
}
.article-body img {
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin: 6px 0 18px;
  cursor: zoom-in;
}
.article-error {
  text-align: center;
  padding: 30px 0;
}
.article-error h1 {
  font-family: var(--font-pixel);
  color: #fff;
  margin-bottom: 10px;
}
.article-error p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
}

/* ---------- 详情页：立即体验大 CTA ---------- */
.live-cta {
  width: min(760px, 100%);
  margin: 8px auto 0;
  padding: clamp(32px, 6vw, 52px) clamp(20px, 5vw, 44px);
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(241, 189, 69, 0.14), transparent 62%),
    var(--glass-bg);
  border: 1px solid var(--gold-soft);
  border-radius: 14px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.live-cta-eyebrow {
  margin: 0 0 6px;
  color: var(--cyan);
  font-family: var(--font-pixel);
  font-size: 14px;
  letter-spacing: 4px;
}
.live-cta-title {
  margin: 0 0 10px;
  color: var(--gold);
  font-family: var(--font-press);
  font-size: clamp(20px, 4.4vw, 30px);
  text-shadow: 0 0 24px var(--gold-soft);
}
.live-cta-sub {
  margin: 0 auto 26px;
  max-width: 460px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
  line-height: 1.7;
}
.live-cta .btn {
  margin: 6px;
}
.btn-lg {
  padding: 16px 34px;
  font-size: 19px;
}



/* 暂时禁用的「查看源码」入口：视觉上弱化，点击弹说明 */
[data-source-disabled] {
  opacity: 0.6;
  cursor: help;
}
.btn[data-source-disabled]:hover {
  transform: none;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}

/* ---------- 技术文章分类筛选标签 ---------- */
.category-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 0 28px;
}
.cat-tab {
  padding: 7px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  color: rgba(255, 255, 255, 0.64);
  font-family: var(--font-pixel);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.cat-tab:hover {
  border-color: var(--cyan);
  color: #fff;
}
.cat-tab.active {
  background: rgba(125, 228, 238, 0.12);
  border-color: var(--cyan);
  color: var(--cyan);
}

/* 文章卡片排列转为列式 */
.ac-meta-row {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  grid-column: 1;
  grid-row: 2;
}
.ac-category {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(125, 228, 238, 0.1);
  border: 1px solid var(--cyan-soft);
  border-radius: 12px;
  font-size: 12px;
  color: var(--cyan);
  white-space: nowrap;
}

/* 文章详情页分类徽章 */
.article-category-badge {
  display: inline-block;
  padding: 2px 12px;
  background: rgba(125, 228, 238, 0.1);
  border: 1px solid var(--cyan-soft);
  border-radius: 12px;
  font-size: 13px;
  color: var(--cyan);
}

/* ============================================================
   反馈与建议弹窗
   ============================================================ */

/* 全局隐藏弹窗区域所有滚动条 */
.fb-overlay,
.fb-overlay * {
  scrollbar-width: none !important;           /* Firefox */
  -ms-overflow-style: none !important;        /* IE/Edge */
}
.fb-overlay ::-webkit-scrollbar,
.fb-overlay::-webkit-scrollbar,
.fb-dialog ::-webkit-scrollbar,
.fb-dialog::-webkit-scrollbar,
.fb-textarea::-webkit-scrollbar {
  display: none !important;                   /* Chrome/Safari */
  width: 0 !important;
  height: 0 !important;
}

/* 遮罩 */
.fb-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(2, 7, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
}
.fb-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
body.fb-locked { overflow: hidden; }

/* 卡片 */
.fb-dialog {
  position: relative;
  width: 460px;
  max-width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: 16px;
  background: rgba(10, 22, 42, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03) inset,
    0 0 60px rgba(125,228,238,0.08),
    0 24px 60px rgba(0,0,0,0.5);
  transform: translateY(20px) scale(0.96);
  transition: transform 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.fb-overlay.is-open .fb-dialog {
  transform: translateY(0) scale(1);
}

.fb-dialog-inner {
  padding: 32px 30px 30px;
}

/* 关闭 */
.fb-close {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 2;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: rgba(255,255,255,0.35);
  font-size: 22px;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.fb-close:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

/* 标题 */
.fb-header {
  text-align: left;
  margin-bottom: 24px;
}
.fb-title {
  margin: 0;
  font-family: var(--font-pixel);
  font-size: 20px;
  color: #fff;
  letter-spacing: 1px;
}
.fb-subtitle {
  margin: 5px 0 0;
  font-size: 13px;
  color: rgba(255,255,255,0.38);
}

/* 类型按钮 */
.fb-type-row {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.fb-type-btn {
  flex: 1;
  padding: 10px 6px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  color: rgba(255,255,255,0.42);
  font-family: var(--font-pixel);
  font-size: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.fb-type-btn .fb-type-icon { font-size: 20px; }
.fb-type-btn:hover {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.7);
}
.fb-type-btn.is-active {
  background: rgba(125,228,238,0.08);
  border-color: rgba(125,228,238,0.35);
  color: var(--cyan);
}

/* 字段 */
.fb-field {
  margin-bottom: 14px;
}
.fb-label {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-pixel);
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.5px;
}
.fb-label .fb-star { color: var(--gold); }

.fb-input,
.fb-textarea {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.fb-input:focus,
.fb-textarea:focus {
  border-color: rgba(125,228,238,0.4);
  box-shadow: 0 0 0 3px rgba(125,228,238,0.05);
}
.fb-textarea {
  resize: none;
  min-height: 110px;
  overflow-y: auto;
}
.fb-input::placeholder,
.fb-textarea::placeholder {
  color: rgba(255,255,255,0.18);
}
.fb-input.is-error,
.fb-textarea.is-error {
  border-color: rgba(248,113,113,0.45);
  box-shadow: 0 0 0 3px rgba(248,113,113,0.05);
}

/* 提交 */
.fb-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  margin-top: 22px;
  padding: 14px 0;
  background: linear-gradient(135deg, #f1bd45, #f9d97a);
  border: none;
  border-radius: 12px;
  color: #1a1206;
  font-family: var(--font-pixel);
  font-size: 16px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.22s ease;
  box-shadow: 0 6px 24px rgba(241,189,69,0.22);
}
.fb-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(241,189,69,0.36);
}
.fb-submit:active { transform: scale(0.97); }
.fb-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}
.fb-submit.is-loading {
  background: linear-gradient(135deg, #7de4ee, #3cb8c4);
  color: #041016;
  animation: fb-pulse 1.3s ease-in-out infinite;
}
@keyframes fb-pulse {
  0%,100%{opacity:0.85}
  50%{opacity:0.5}
}
.fb-submit-icon { font-size: 18px; }

/* 消息 */
.fb-msg {
  margin: 16px 0 0;
  padding: 11px 16px;
  border-radius: 10px;
  font-family: var(--font-pixel);
  font-size: 13px;
  text-align: center;
  animation: fb-up 0.3s ease;
}
@keyframes fb-up {
  from{opacity:0;transform:translateY(6px)}
  to{opacity:1;transform:translateY(0)}
}
.fb-msg-ok {
  background: rgba(52,211,153,0.1);
  border: 1px solid rgba(52,211,153,0.2);
  color: #6ee7b7;
}
.fb-msg-err {
  background: rgba(248,113,113,0.1);
  border: 1px solid rgba(248,113,113,0.2);
  color: #fca5a5;
}

/* 响应式 */
@media (max-width: 520px) {
  .fb-overlay {
    padding: 10px;
    align-items: flex-end;
  }
  .fb-dialog {
    border-radius: 16px 16px 6px 6px;
    max-height: 86vh;
  }
  .fb-dialog-inner { padding: 24px 18px 22px; }
  .fb-type-btn { padding: 8px 4px; font-size: 11px; }
  .fb-type-btn .fb-type-icon { font-size: 18px; }
}