:root {
    --bg: #f4f1ea;
    --card-bg: transparent;
    --text: #1a1a1a;
    --text-secondary: #404040;
    /* 小字号弱化文字目标 ≥4.5:1（相对 --bg #f4f1ea） */
    --text-muted: #5c5c5c;
    --border: #d4cfc5;
    --panel-bg: #fbf8f1;
    --shadow-sm: none;
    --shadow: none;
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
    --radius: 0px;
    --radius-sm: 0px;

    --header-bg: #111111;
    --header-text: #ffffff;
    --header-accent: #b02a2a;

    --accent-pa: #0d7377;
    --accent-pa-bg: rgba(13, 115, 119, 0.05);
    --accent-econ: #5b4cc4;
    --accent-econ-bg: rgba(91, 76, 196, 0.05);
    --accent-nber: #c9892e;
    --accent-nber-bg: rgba(201, 137, 46, 0.05);
    --accent-hot: #b02a2a;
    --accent-hot-bg: rgba(176, 42, 42, 0.05);
    --accent-news: #b02a2a;
    --accent-news-bg: rgba(176, 42, 42, 0.05);

    --primary: #b02a2a;
    --primary-light: rgba(176, 42, 42, 0.08);

    --sent-vneg: #b02a2a;
    --sent-neg: #d97706;
    --sent-neu: #9ca3af;
    --sent-pos: #16a34a;
    --sent-vpos: #059669;

    --font-display: "Playfair Display", "Noto Serif SC", Georgia, "SimSun", serif;
    --font-zh-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
    --font-body: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace;

    --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .dark {
    --bg: #121212;
    --card-bg: transparent;
    --text: #e6e6e6;
    --text-secondary: #b5b5b5;
    /* 相对 --bg #121212，小字号目标 ≥4.5:1 */
    --text-muted: #a3a3a3;
    --border: #333333;
    --panel-bg: #1a1a1a;
    --shadow-sm: none;
    --shadow: none;
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --header-bg: #0a0a0a;
    --header-accent: #d33838;

    --accent-pa-bg: rgba(13, 115, 119, 0.15);
    --accent-econ-bg: rgba(91, 76, 196, 0.15);
    --accent-nber-bg: rgba(201, 137, 46, 0.15);
    --accent-hot-bg: rgba(211, 56, 56, 0.15);
    --accent-news-bg: rgba(211, 56, 56, 0.15);

    --primary: #d33838;
    --primary-light: rgba(211, 56, 56, 0.12);
  }

  .nerv {
    --bg: #050505;
    --card-bg: rgba(255, 102, 0, 0.05);
    --text: #FF9900;
    --text-secondary: #e08a00;
    /* 相对 --bg #050505，避免过暗棕橙色导致对比不足 */
    --text-muted: #c97800;
    --border: #FF6600;
    --panel-bg: #110700;
    --shadow-sm: none;
    --shadow: none;
    --shadow-lg: 0 8px 30px rgba(255, 102, 0, 0.15);

    --header-bg: #FF6600;
    --header-text: #050505;
    --header-accent: #D30000;

    --accent-pa-bg: rgba(255, 102, 0, 0.1);
    --accent-econ-bg: rgba(255, 102, 0, 0.1);
    --accent-nber-bg: rgba(255, 102, 0, 0.1);
    --accent-hot-bg: rgba(255, 102, 0, 0.1);
    --accent-news-bg: rgba(255, 102, 0, 0.1);

    --primary: #FF6600;
    --primary-light: rgba(255, 102, 0, 0.15);

    --sent-pos: #00FF66;
    --sent-vpos: #00FF66;
    --sent-neu: #cc7a00;
    --sent-neg: #FF3300;
    --sent-vneg: #D30000;

    --font-display: "Share Tech Mono", monospace, "Microsoft YaHei", sans-serif;
    --font-body: "Share Tech Mono", monospace, "Microsoft YaHei", sans-serif;
  }

  body.nerv {
    background-color: #050505;
    background-image:
        linear-gradient(rgba(255, 102, 0, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 102, 0, 0.08) 1px, transparent 1px),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cpath d='M0 0h28v49H0z' fill='none'/%3E%3Cpath d='M14 0 L28 8.08 L28 24.25 L14 32.33 L0 24.25 L0 8.08 Z M14 49 L28 40.92 L28 24.75 L14 16.67 L0 24.75 L0 40.92 Z' stroke='rgba%28255, 102, 0, 0.045%29' stroke-width='1' fill='none'/%3E%3C/svg%3E");
    background-size: 80px 80px, 28px 49px;
    padding-left: 14px;
    padding-right: 14px;
  }

  .nerv .header {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
    border-bottom: none;
  }

  .nerv .header-brand h1 {
    color: #050505;
    font-weight: 800;
    text-transform: uppercase;
  }

  .nerv .header-date {
    color: #050505;
  }

  .nerv .btn-theme {
    border: 2px solid #050505;
    background: #050505;
    color: #FF6600 !important;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    margin-right: 10px;
  }

  .nerv .btn-theme:hover {
    background: transparent;
    color: #050505 !important;
    border-color: #050505;
  }

  .nerv .btn {
    border-color: #FF6600;
    color: #FF6600;
    background: transparent;
    text-transform: uppercase;
    font-weight: bold;
    border-radius: 0;
  }

  .nerv .btn:hover {
    background: #FF6600;
    color: #050505;
  }

  .nerv .header .btn {
    border: 2px solid #050505 !important;
    background: #050505 !important;
    color: #FF6600 !important;
    padding: 4px 10px !important;
    border-radius: 4px !important;
    font-weight: bold !important;
    font-family: var(--font-display) !important;
    font-size: 0.75rem !important;
    text-transform: uppercase !important;
    line-height: 1.2 !important;
    display: inline-flex !important;
    align-items: center !important;
    text-decoration: none !important;
  }

  .nerv .header .btn:hover {
    background: transparent !important;
    color: #050505 !important;
    border-color: #050505 !important;
  }

  body.nerv .header .status-wrap,
  body.nerv .header .status-wrap #statusText,
  body.nerv .header #statusText {
    /* 顶栏背景 #FF6600：状态字用深色以保证 ≥4.5:1 */
    color: #050505 !important;
    font-weight: bold;
  }

  .nerv .push-menu {
    background: #110700;
    border-color: #FF6600;
  }

  .nerv .push-menu-item {
    color: #FF9900;
  }

  .nerv .push-menu-item:hover {
    background: rgba(255, 102, 0, 0.15);
    color: #FF6600;
  }

  .nerv .card {
    position: relative;
    border: 1px solid #FF6600 !important;
    border-left: 4px solid #FF6600 !important;
    background: rgba(255, 102, 0, 0.03) !important;
    border-radius: 0 !important;
    padding: 24px !important;
    margin-bottom: 24px !important;
    box-shadow: none !important;
  }
  .nerv .card::before {
    content: "";
    position: absolute;
    top: 4px; left: 4px; right: 4px; bottom: 4px;
    border: 1px solid rgba(255, 102, 0, 0.15);
    pointer-events: none;
  }
  .nerv .card::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border: 2px solid transparent;
    border-image: linear-gradient(135deg, #FF6600 8px, transparent 8px) 1;
    pointer-events: none;
    opacity: 0.8;
  }
  .nerv .card:hover {
    background: rgba(255, 102, 0, 0.06) !important;
    border-left-width: 6px !important;
    box-shadow: 0 0 15px rgba(255, 102, 0, 0.15) !important;
  }
  .nerv .card-title {
    border-bottom: 1px solid rgba(255, 102, 0, 0.3) !important;
    padding-bottom: 8px !important;
    margin-bottom: 14px !important;
  }
  .nerv .card-title a {
    color: #FF9900 !important;
    font-family: var(--font-display) !important;
    font-weight: 700 !important;
  }
  .nerv .card-title a:hover {
    color: #FF6600 !important;
    text-shadow: 0 0 5px rgba(255, 102, 0, 0.5);
  }

  /* ── Caution Diagonal Warning Stripes ── */
  body.nerv::before {
    content: "";
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: 14px;
    background: repeating-linear-gradient(45deg, #FF6600, #FF6600 10px, #050505 10px, #050505 20px);
    z-index: 1000;
    pointer-events: none;
    border-right: 1px solid #FF6600;
  }
  body.nerv::after {
    content: "";
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 14px;
    background: repeating-linear-gradient(45deg, #FF6600, #FF6600 10px, #050505 10px, #050505 20px);
    z-index: 1000;
    pointer-events: none;
    border-left: 1px solid #FF6600;
  }

  /* ── Theme Select Dropdown styling ── */
  .theme-select-container {
    position: relative;
    display: inline-block;
  }
  .btn-theme-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 6px;
    background: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.85);
    cursor: pointer;
    font-size: 0.76rem;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all var(--transition);
    white-space: nowrap;
  }
  .btn-theme-trigger:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.3);
    color: #fff;
  }
  .theme-dropdown-menu {
    position: absolute;
    width: 140px;
    background: var(--panel-bg);
    color: var(--text);
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    overflow: hidden;
    border: 1px solid var(--border);
  }
  .theme-dropdown-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 9px 14px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.82rem;
    color: var(--text);
    font-family: var(--font-body);
    transition: background var(--transition);
  }
  .theme-dropdown-item:hover {
    background: var(--primary-light);
    color: var(--primary);
  }

  .nerv .btn-theme-trigger {
    border: 2px solid #050505;
    background: #050505;
    color: #FF6600 !important;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: bold;
    font-family: var(--font-display);
    font-size: 0.75rem;
    text-transform: uppercase;
  }
  .nerv .btn-theme-trigger:hover {
    background: transparent;
    color: #050505 !important;
    border-color: #050505;
  }
  .nerv .header-secondary {
    background: #110700;
    border-color: #FF6600;
    border-radius: 0;
    box-shadow: 0 0 15px rgba(255, 102, 0, 0.25);
  }
  .nerv .header-secondary .btn,
  .nerv .header-secondary .btn-theme-trigger,
  .nerv .header-secondary a.btn {
    color: #FF9900;
    font-family: var(--font-display);
  }
  .nerv .header-secondary .btn:hover,
  .nerv .header-secondary .btn-theme-trigger:hover,
  .nerv .header-secondary a.btn:hover {
    background: rgba(255, 102, 0, 0.15);
    color: #FF6600;
  }
  .nerv .theme-dropdown-menu {
    background: #110700;
    border-color: #FF6600;
    border-radius: 0;
    box-shadow: 0 0 15px rgba(255, 102, 0, 0.25);
  }
  .nerv .theme-dropdown-item {
    color: #FF9900;
    font-family: var(--font-display);
    border-radius: 0;
  }
  .nerv .theme-dropdown-item:hover {
    background: rgba(255, 102, 0, 0.15);
    color: #FF6600;
  }

  /* ── EVA Tabs Navigation ── */
  .nerv .tabs {
    background: #110700 !important;
    border-bottom: 2px solid #FF6600 !important;
    gap: 8px !important;
    padding: 0 14px !important;
  }
  .nerv .tab {
    border: 1px solid #cc7a00 !important;
    border-bottom: none !important;
    background: rgba(255, 102, 0, 0.05) !important;
    color: #cc7a00 !important;
    padding: 8px 16px !important;
    font-family: var(--font-display) !important;
    text-transform: uppercase !important;
    margin-bottom: 0 !important;
    border-radius: 0 !important;
  }
  .nerv .tab:hover {
    background: rgba(255, 102, 0, 0.15) !important;
    color: #FF9900 !important;
  }
  .nerv .tab.active {
    background: #FF6600 !important;
    color: #050505 !important;
    border-color: #FF6600 !important;
    font-weight: 900 !important;
  }

  /* ── Dynamic Sync Rate Sentiment Bar ── */
  .nerv .sent-bar {
    border-radius: 0 !important;
    border: 1px solid #FF6600 !important;
    box-shadow: none !important;
    background: #050505 !important;
  }
  .nerv .sent-bar > div {
    background-image: repeating-linear-gradient(90deg,
      transparent, transparent 6px,
      #050505 6px, #050505 8px
    ) !important;
    text-shadow: 1px 1px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000 !important;
  }

  /* ── Diamond tactical sentiment dots ── */
  .nerv .sent-dot {
    border-radius: 0 !important;
    width: 8px !important;
    height: 8px !important;
    transform: rotate(45deg);
    display: inline-block;
    box-shadow: 0 0 4px currentColor;
  }

  /* ── NERV Loading Skeletons ── */
  .nerv .skeleton-card {
    border: 1px solid #FF6600 !important;
    border-top: 3px solid #FF6600 !important;
    border-left: 3px solid #FF6600 !important;
    background: rgba(255, 102, 0, 0.02) !important;
    border-radius: 0 !important;
  }
  .nerv .skeleton-box {
    background: rgba(255, 102, 0, 0.1) !important;
    border-radius: 0 !important;
  }
  .nerv .skeleton-box::after {
    background: linear-gradient(90deg, transparent, rgba(255, 102, 0, 0.25), transparent) !important;
  }

  /* ── MAGI Dashboard Panel ── */
  .magi-dashboard-panel {
    display: none;
  }
  .nerv .magi-dashboard-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0b0500;
    border-bottom: 2px solid #FF6600;
    padding: 8px 24px;
    font-family: var(--font-display);
    color: #FF6600;
    z-index: 150;
    box-sizing: border-box;
    border-top: 1px solid rgba(255, 102, 0, 0.2);
  }
  .nerv .magi-brand {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .nerv .magi-logo-icon {
    width: 24px;
    height: 24px;
    background: #FF6600;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nerv .magi-logo-icon::after {
    content: "🍁";
    font-size: 13px;
    color: #050505;
  }
  .nerv .magi-brand-title {
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 1px;
    line-height: 1.1;
  }
  .nerv .magi-brand-subtitle {
    font-size: 0.6rem;
    color: #cc7a00;
    font-weight: 500;
  }
  .nerv .magi-main-title {
    text-align: center;
  }
  .nerv .magi-title-main {
    font-size: 1.05rem;
    font-weight: 900;
    letter-spacing: 2px;
    border-bottom: 1px solid #FF6600;
    padding-bottom: 1px;
  }
  .nerv .magi-title-sub {
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: #cc7a00;
    margin-top: 1px;
  }
  .nerv .magi-pc-cluster {
    display: flex;
    gap: 10px;
  }
  .nerv .magi-pc {
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid #cc7a00;
    padding: 2px 6px;
    font-size: 0.7rem;
    background: rgba(255, 102, 0, 0.05);
  }
  .nerv .magi-pc-name {
    font-weight: 700;
    color: #cc7a00;
  }
  .nerv .magi-pc-vote {
    font-weight: 800;
    padding: 0 4px;
    border-radius: 1px;
    background: #00FF66;
    color: #050505;
    box-shadow: 0 0 5px rgba(0, 255, 102, 0.5);
  }

  /* ── NERV Fluorescent Green Highlights ── */
  .nerv .status-dot.done {
    background: #00FF66 !important;
    box-shadow: 0 0 6px #00FF66 !important;
  }
  body.nerv .header .status-wrap,
  body.nerv .header .status-wrap #statusText,
  body.nerv .header #statusText {
    /* 覆盖荧光绿高亮：顶栏文字必须用深色，绿色仅留给状态点等非文字提示 */
    color: #050505 !important;
  }
  body.nerv .header .header-date,
  body.nerv .header #headerDate {
    color: #050505 !important;
    text-shadow: none !important;
  }
  .nerv .rel-high {
    background: rgba(0, 255, 102, 0.12) !important;
    color: #00FF66 !important;
    border: 1px solid #00FF66 !important;
    border-radius: 0 !important;
  }
  .nerv .rel-medium {
    background: rgba(255, 102, 0, 0.1) !important;
    color: #FF9900 !important;
    border: 1px solid #FF9900 !important;
    border-radius: 0 !important;
  }
  .nerv .rel-watch {
    background: transparent !important;
    color: #cc7a00 !important;
    border: 1px solid #804d00 !important;
    border-radius: 0 !important;
  }
  .nerv .journal-new-badge {
    border: 1px solid #FF9900 !important;
    border-radius: 0 !important;
    background: #FF6600 !important;
    color: #050505 !important;
    font-family: var(--font-display) !important;
    font-weight: 700 !important;
    letter-spacing: 0.1em;
  }
  .nerv .field-badge {
    background: rgba(255, 102, 0, 0.08) !important;
    color: #FF9900 !important;
    border: 1px solid #cc7a00 !important;
    border-radius: 0 !important;
  }
  .nerv .rel-reason {
    color: #00FF66 !important;
    font-family: var(--font-display) !important;
    background: rgba(0, 255, 102, 0.05) !important;
    border-left: 3px solid #00FF66 !important;
    padding: 6px 10px !important;
    margin-top: 8px !important;
    font-size: 0.78rem !important;
    border-radius: 0 !important;
  }
  .nerv .jump-top {
    background: #050505 !important;
    border: 2px solid #FF6600 !important;
    color: #00FF66 !important;
    border-radius: 0 !important;
    font-weight: bold;
  }
  .nerv .jump-top:hover {
    background: #FF6600 !important;
    color: #050505 !important;
    box-shadow: 0 0 10px #FF6600;
  }

  /* ── NERV Fluorescent Green Texts & Telemetry ── */
  .nerv .card-meta span {
    color: #00FF66 !important;
    font-family: var(--font-display) !important;
    font-weight: 500;
  }
  .nerv .ai-category-count,
  .nerv .field-jrnl .jrnl-count {
    color: #00FF66 !important;
    font-family: var(--font-display) !important;
    font-weight: bold;
  }
  .nerv .topic-badge {
    background: rgba(0, 255, 102, 0.12) !important;
    color: #00FF66 !important;
    border: 1px solid #00FF66 !important;
    border-radius: 0 !important;
  }
  .nerv .translation {
    border-left-color: #FF6600 !important;
  }
  .nerv .translation .tl,
  .nerv .abstract-zh .tl {
    color: #00FF66 !important;
    font-family: var(--font-display) !important;
    font-weight: bold;
    letter-spacing: 0.05em;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .fade-in-up {
    animation: fadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
  }