/* ================================================
   CSS Variables
   ================================================ */
:root {
    --gl-primary: #2563eb;
    --gl-primary-dark: #1d4ed8;
    --gl-primary-light: #dbeafe;
    --gl-primary-bg: #eff6ff;
    --gl-secondary: #10b981;
    --gl-secondary-light: #d1fae5;
    --gl-accent: #f59e0b;
    --gl-accent-light: #fef3c7;
    --gl-danger: #ef4444;
    --gl-danger-light: #fee2e2;
    --gl-purple: #8b5cf6;
    --gl-purple-light: #ede9fe;
    --gl-dark: #1e293b;
    --gl-text: #334155;
    --gl-text-light: #64748b;
    --gl-border: #e2e8f0;
    --gl-bg: #f8fafc;
    --gl-white: #ffffff;
    --gl-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --gl-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --gl-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --gl-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --gl-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --gl-radius: 12px;
    --gl-radius-sm: 8px;
    --gl-radius-lg: 16px;
    --gl-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================================================
   Global Reset for Glossary
   ================================================ */
.gl-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--gl-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    max-width: 100%;
    overflow-x: hidden;
    position: relative;
    z-index: 0;
}
.gl-wrapper *, .gl-wrapper *::before, .gl-wrapper *::after {
    box-sizing: border-box;
}
.gl-wrapper a {
    text-decoration: none;
    color: inherit;
}

/* ================================================
   Hero Section
   ================================================ */
.gl-hero {
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #1e40af 100%);
    padding: 36px 20px 28px;
    text-align: center;
    position: relative;
    overflow: visible;
    z-index: 1;
}
.gl-hero.gl-search-assist-open {
    z-index: 8;
}
.gl-hero.gl-search-assist-open + .gl-toolbar {
    z-index: 1;
}
.gl-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(59,130,246,0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139,92,246,0.2) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(16,185,129,0.2) 0%, transparent 50%);
    pointer-events: none;
}
.gl-hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.gl-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}
.gl-hero-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: rgba(255,255,255,0.15);
    border-radius: 14px;
    margin-bottom: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}
.gl-hero-icon svg {
    width: 28px;
    height: 28px;
    fill: #ffffff;
}
.gl-hero h1 {
    color: #ffffff;
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 10px;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.gl-hero-title {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.gl-hero-version {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.28);
    background: rgba(255,255,255,0.14);
    color: rgba(255,255,255,0.92);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}
.gl-hero-desc {
    color: rgba(255,255,255,0.85);
    font-size: 15px;
    margin: 0 0 16px;
    line-height: 1.6;
}
.gl-hero-tools {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 16px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.gl-hero-search {
    flex: 1;
    min-width: 220px;
    max-width: 360px;
    position: relative;
    z-index: 3;
}
.gl-hero.gl-search-assist-open .gl-hero-content {
    z-index: 9;
}
.gl-hero.gl-search-assist-open .gl-hero-search {
    z-index: 10;
}
.gl-hero-search svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: rgba(255,255,255,0.6);
    pointer-events: none;
}
.gl-hero-search input {
    width: 100%;
    padding: 10px 14px 10px 42px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--gl-radius);
    font-size: 14px;
    color: #ffffff;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    transition: var(--gl-transition);
    outline: none;
    font-family: inherit;
}
.gl-hero-search input::placeholder {
    color: rgba(255,255,255,0.6);
}
.gl-hero-search input:focus {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.5);
}
.gl-hero-results {
    color: rgba(255,255,255,0.9);
    font-size: 14px;
    font-weight: 500;
}
.gl-hero-random {
    padding: 8px 16px;
    border: 1px solid rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.2);
    border-radius: var(--gl-radius-sm);
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--gl-transition);
    backdrop-filter: blur(8px);
    font-family: inherit;
}
.gl-hero-random:hover {
    background: rgba(255,255,255,0.35);
    border-color: rgba(255,255,255,0.6);
}

/* ================================================
   Main Container
   ================================================ */
.gl-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.gl-main {
    background: var(--gl-bg);
    padding-bottom: 80px;
}

/* ================================================
   Search & Filter Bar
   ================================================ */
.gl-toolbar {
    background: var(--gl-white);
    border-bottom: 1px solid var(--gl-border);
    padding: 20px;
    position: sticky;
    top: 0;
    z-index: 5;
    box-shadow: var(--gl-shadow-sm);
}
.gl-toolbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.gl-toolbar-row1 {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.gl-search-box {
    flex: 1;
    min-width: 200px;
    max-width: 360px;
    position: relative;
    z-index: 6;
}
.gl-search-box svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--gl-text-light);
    pointer-events: none;
}
.gl-search-input {
    width: 100%;
    padding: 12px 16px 12px 48px;
    border: 2px solid var(--gl-border);
    border-radius: var(--gl-radius);
    font-size: 15px;
    color: var(--gl-text);
    background: var(--gl-bg);
    transition: var(--gl-transition);
    outline: none;
    font-family: inherit;
}
.gl-search-input:focus {
    border-color: var(--gl-primary);
    background: var(--gl-white);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}
.gl-search-input::placeholder {
    color: var(--gl-text-light);
}
.gl-search-assist {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    padding: 10px;
    background: var(--gl-white);
    border: 1px solid var(--gl-border);
    border-radius: var(--gl-radius);
    box-shadow: var(--gl-shadow-xl);
    z-index: 12;
}
.gl-hero.gl-search-assist-open .gl-search-assist {
    z-index: 20;
}
.gl-search-assist.visible {
    display: block;
}
.gl-search-assist-section + .gl-search-assist-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--gl-border);
}
.gl-search-assist-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}
.gl-search-assist-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--gl-text-light);
    letter-spacing: 0.02em;
}
.gl-search-assist-action {
    border: none;
    background: transparent;
    color: var(--gl-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    font-family: inherit;
}
.gl-search-assist-action:hover {
    color: var(--gl-primary-dark);
    text-decoration: underline;
}
.gl-search-suggestion-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.gl-search-suggestion {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--gl-border);
    border-radius: var(--gl-radius-sm);
    background: var(--gl-white);
    cursor: pointer;
    transition: var(--gl-transition);
    text-align: left;
    font-family: inherit;
}
.gl-search-suggestion:hover,
.gl-search-suggestion.active {
    border-color: var(--gl-primary);
    background: var(--gl-primary-bg);
    box-shadow: var(--gl-shadow-sm);
}
.gl-search-suggestion-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}
.gl-search-suggestion-term {
    font-size: 14px;
    font-weight: 700;
    color: var(--gl-dark);
    line-height: 1.4;
}
.gl-search-suggestion-cn {
    font-size: 12px;
    color: var(--gl-text-light);
    line-height: 1.4;
}
.gl-search-suggestion-note {
    font-size: 12px;
    color: var(--gl-text);
    line-height: 1.5;
}
.gl-search-suggestion-meta {
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 600;
    color: var(--gl-primary);
    white-space: nowrap;
}
.gl-filter-row {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}
.gl-filter-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    flex: 1;
    overflow: hidden;
    max-height: 48px;
    transition: max-height 0.3s ease;
}
.gl-filter-group.expanded {
    max-height: 300px;
}
.gl-filter-expand {
    flex-shrink: 0;
    min-width: 92px;
    padding: 8px 14px;
    border: 1px solid var(--gl-border);
    background: var(--gl-white);
    border-radius: var(--gl-radius-sm);
    color: var(--gl-text-light);
    font-size: 13px;
    cursor: pointer;
    transition: var(--gl-transition);
    white-space: nowrap;
    font-family: inherit;
}
.gl-filter-expand:hover {
    border-color: var(--gl-primary);
    color: var(--gl-primary);
}
.gl-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: 2px solid var(--gl-border);
    border-radius: 50px;
    background: var(--gl-white);
    color: var(--gl-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--gl-transition);
    white-space: nowrap;
    font-family: inherit;
}
.gl-filter-btn:hover {
    border-color: var(--gl-primary);
    color: var(--gl-primary);
    background: var(--gl-primary-bg);
}
.gl-filter-btn.active {
    background: var(--gl-primary);
    color: #ffffff;
    border-color: var(--gl-primary);
    box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}
.gl-filter-btn .gl-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    background: var(--gl-border);
    color: var(--gl-text-light);
}
.gl-filter-btn.active .gl-count {
    background: rgba(255,255,255,0.3);
    color: #ffffff;
}
.gl-filter-btn.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    border-color: var(--gl-border);
    color: var(--gl-text-light);
    background: var(--gl-bg);
}
.gl-filter-btn.disabled:hover {
    border-color: var(--gl-border);
    color: var(--gl-text-light);
    background: var(--gl-bg);
}
.gl-results-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--gl-text-light);
}
.gl-results-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.gl-view-toggle {
    display: flex;
    gap: 4px;
}
.gl-view-btn {
    padding: 6px 10px;
    border: 1px solid var(--gl-border);
    background: var(--gl-white);
    cursor: pointer;
    color: var(--gl-text-light);
    transition: var(--gl-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.gl-view-btn:first-child {
    border-radius: 6px 0 0 6px;
}
.gl-view-btn:last-child {
    border-radius: 0 6px 6px 0;
}
.gl-view-btn.active {
    background: var(--gl-primary);
    border-color: var(--gl-primary);
    color: #fff;
}
.gl-view-btn svg {
    width: 16px;
    height: 16px;
}
.gl-random-btn {
    padding: 6px 12px;
    border: 1px solid var(--gl-border);
    background: var(--gl-white);
    border-radius: var(--gl-radius-sm);
    color: var(--gl-text-light);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--gl-transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: inherit;
}
.gl-random-btn:hover {
    border-color: var(--gl-primary);
    color: var(--gl-primary);
    background: var(--gl-primary-bg);
}

/* ================================================
   Alphabet Navigation
   ================================================ */
.gl-alpha-nav {
    background: var(--gl-white);
    padding: 12px 20px;
    border-bottom: 1px solid var(--gl-border);
    text-align: center;
}
.gl-alpha-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.gl-alpha-btns {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px;
    flex: 1;
}
.gl-view-toggle-right {
    flex-shrink: 0;
    margin-left: auto;
}
.gl-alpha-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--gl-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-alpha-btn:hover {
    background: var(--gl-primary-light);
    color: var(--gl-primary);
}
.gl-alpha-btn.active {
    background: var(--gl-primary);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(37,99,235,0.3);
}
.gl-alpha-btn.disabled {
    color: var(--gl-border);
    cursor: default;
    pointer-events: none;
}

/* ================================================
   Content Area
   ================================================ */
.gl-content {
    padding: 32px 0;
}

.gl-knowledge-shell {
    margin-top: 28px;
    margin-bottom: 16px;
    position: relative;
}
.gl-knowledge-empty,
.gl-knowledge-panel {
    background: var(--gl-white);
    border: 1px solid var(--gl-border);
    border-radius: var(--gl-radius-lg);
    box-shadow: var(--gl-shadow-sm);
    transition: box-shadow 0.28s ease, border-color 0.28s ease, transform 0.28s ease;
}
.gl-knowledge-shell.is-focused .gl-knowledge-empty,
.gl-knowledge-shell.is-focused .gl-knowledge-panel {
    border-color: rgba(37, 99, 235, 0.28);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12), var(--gl-shadow-md);
    transform: translateY(-1px);
}
.gl-knowledge-empty {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f7fbff 100%);
}
.gl-knowledge-empty-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--gl-primary-bg), #ffffff);
    color: var(--gl-primary);
    flex-shrink: 0;
}
.gl-knowledge-empty-icon svg {
    width: 22px;
    height: 22px;
}
.gl-knowledge-empty-title {
    margin: 4px 0 8px;
    font-size: 20px;
    color: var(--gl-dark);
}
.gl-knowledge-empty-text {
    margin: 0;
    color: var(--gl-text-light);
    font-size: 14px;
    line-height: 1.7;
}
.gl-knowledge-eyebrow {
    font-size: 12px;
    font-weight: 700;
    color: var(--gl-primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.gl-knowledge-panel {
    padding: 24px;
}
.gl-knowledge-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}
.gl-knowledge-header-main {
    min-width: 0;
}
.gl-knowledge-title {
    margin: 4px 0 8px;
    font-size: 24px;
    color: var(--gl-dark);
    line-height: 1.3;
}
.gl-knowledge-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
}
.gl-knowledge-meta-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--gl-primary);
    font-size: 12px;
    font-weight: 700;
}
.gl-knowledge-summary {
    margin: 0;
    color: var(--gl-text-light);
    font-size: 14px;
    line-height: 1.6;
}
.gl-knowledge-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.gl-knowledge-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: var(--gl-radius-sm);
    border: 1px solid rgba(37,99,235,0.15);
    background: var(--gl-primary-bg);
    color: var(--gl-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-knowledge-action:hover {
    border-color: var(--gl-primary);
    background: var(--gl-primary);
    color: #ffffff;
}
.gl-knowledge-action-muted {
    border-color: var(--gl-border);
    background: var(--gl-white);
    color: var(--gl-text-light);
}
.gl-knowledge-action-muted:hover {
    border-color: var(--gl-text-light);
    background: var(--gl-bg);
    color: var(--gl-text);
}
.gl-knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}
.gl-knowledge-card {
    min-width: 0;
    padding: 18px;
    border-radius: var(--gl-radius);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(148, 163, 184, 0.16);
}
.gl-knowledge-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--gl-dark);
    margin-bottom: 8px;
}
.gl-knowledge-card-text {
    margin: 0 0 14px;
    color: var(--gl-text-light);
    font-size: 13px;
    line-height: 1.6;
}
.gl-knowledge-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.gl-knowledge-notes {
    display: grid;
    gap: 10px;
}
.gl-knowledge-note {
    position: relative;
    padding: 12px 14px 12px 18px;
    border-radius: 14px;
    background: #f8fbff;
    color: var(--gl-text);
    font-size: 13px;
    line-height: 1.7;
}
.gl-knowledge-note::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 4px;
    border-radius: 999px;
    background: var(--gl-primary);
}
.gl-knowledge-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-knowledge-link-primary {
    background: var(--gl-primary-light);
    color: var(--gl-primary);
}
.gl-knowledge-link-secondary {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
}
.gl-knowledge-link-muted {
    background: rgba(15, 23, 42, 0.06);
    color: var(--gl-text);
}
.gl-knowledge-link-jump {
    box-shadow: inset 0 0 0 1px rgba(14, 165, 233, 0.35);
}
.gl-knowledge-link:hover {
    transform: translateY(-1px);
    box-shadow: var(--gl-shadow-sm);
}
.gl-knowledge-empty-inline {
    color: var(--gl-text-light);
    font-size: 13px;
    line-height: 1.6;
}

/* Letter Group */
.gl-letter-group {
    margin-bottom: 40px;
}
.gl-letter-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding: 0 4px;
}
.gl-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--gl-primary), var(--gl-primary-dark));
    color: #ffffff;
    font-size: 24px;
    font-weight: 800;
    border-radius: var(--gl-radius);
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
    flex-shrink: 0;
}
.gl-letter-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, var(--gl-primary-light), transparent);
    border-radius: 2px;
}
.gl-letter-count {
    font-size: 13px;
    color: var(--gl-text-light);
    font-weight: 500;
    white-space: nowrap;
}

/* ================================================
   Card Styles (Grid View)
   ================================================ */
.gl-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
}
.gl-card {
    background: var(--gl-white);
    border-radius: var(--gl-radius-lg);
    border: 1px solid var(--gl-border);
    padding: 24px;
    transition: var(--gl-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.gl-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gl-primary);
    opacity: 0;
    transition: var(--gl-transition);
}
.gl-card:hover {
    border-color: var(--gl-primary);
    box-shadow: var(--gl-shadow-lg);
    transform: translateY(-2px);
}
.gl-card:hover::before {
    opacity: 1;
}
.gl-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 12px;
}
.gl-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--gl-dark);
    margin: 0;
    line-height: 1.4;
}
.gl-card-cn {
    font-size: 14px;
    color: var(--gl-text-light);
    margin-top: 2px;
    font-weight: 500;
}
.gl-card-category {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.gl-cat-intro { background: var(--gl-primary-light); color: var(--gl-primary); }
.gl-cat-indicator { background: var(--gl-secondary-light); color: #059669; }
.gl-cat-priceaction { background: var(--gl-purple-light); color: var(--gl-purple); }
.gl-cat-risk { background: var(--gl-danger-light); color: var(--gl-danger); }
.gl-cat-strategy { background: #e0e7ff; color: #4338ca; }
.gl-cat-market { background: #f0fdf4; color: #15803d; }
.gl-cat-order { background: #fff7ed; color: #c2410c; }
.gl-cat-technical { background: #ccfbf1; color: #0d9488; }
.gl-cat-mechanics { background: #e0f2fe; color: #0369a1; }
.gl-cat-ea { background: #fce7f3; color: #be185d; }
.gl-cat-timing { background: #ecfdf5; color: #047857; }

.gl-card-body {
    margin-bottom: 16px;
}
.gl-card-def {
    font-size: 14px;
    color: var(--gl-text);
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.gl-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.gl-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
/* 懒加载：底部加载更多 */
.gl-load-more-sentinel {
    height: 1px;
    visibility: hidden;
    pointer-events: none;
}
.gl-load-more {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    color: var(--gl-text-light);
    font-size: 14px;
}
.gl-load-more.loading {
    color: var(--gl-primary);
}
.gl-load-more-dots {
    display: inline-flex;
    gap: 4px;
    margin-left: 8px;
}
.gl-load-more-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    animation: glLoadDots 1.4s ease-in-out infinite both;
}
.gl-load-more-dots span:nth-child(2) { animation-delay: 0.2s; }
.gl-load-more-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes glLoadDots {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1); }
}

.gl-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--gl-bg);
    border: 1px solid var(--gl-border);
    border-radius: 50px;
    font-size: 12px;
    color: var(--gl-text-light);
    font-weight: 500;
}
.gl-card-expand {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border: none;
    border-radius: 50px;
    background: var(--gl-primary-bg);
    color: var(--gl-primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-card-expand:hover {
    background: var(--gl-primary);
    color: #fff;
}
.gl-card-expand svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s;
}
.gl-card.expanded .gl-card-expand svg {
    transform: rotate(180deg);
}

/* Expanded Content */
.gl-card-detail {
    display: none;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed var(--gl-border);
}
.gl-card.expanded .gl-card-detail {
    display: block;
}
.gl-card.expanded .gl-card-def {
    -webkit-line-clamp: unset;
}
.gl-detail-section {
    margin-bottom: 14px;
}
.gl-detail-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--gl-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.gl-detail-text {
    font-size: 14px;
    color: var(--gl-text);
    line-height: 1.7;
    margin: 0;
    padding: 10px 14px;
    background: var(--gl-bg);
    border-radius: var(--gl-radius-sm);
    border-left: 3px solid var(--gl-primary);
}

.gl-search-mark {
    background: rgba(250, 204, 21, 0.28);
    color: inherit;
    padding: 0 2px;
    border-radius: 4px;
}

.gl-search-hit-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}
.gl-search-hit-preview {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
}
.gl-search-hit-detail {
    display: inline-flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12px;
    color: var(--gl-text);
    line-height: 1.5;
}
.gl-search-hit-label {
    flex-shrink: 0;
    color: var(--gl-text-light);
    font-weight: 700;
}
.gl-search-hit-value {
    color: var(--gl-text);
}

.gl-search-hit {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--gl-primary);
    font-size: 12px;
    font-weight: 600;
}

/* ================================================
   List View
   ================================================ */
.gl-list-view .gl-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.gl-list-view .gl-card {
    display: grid;
    grid-template-columns: 1fr;
    padding: 20px 24px;
}

/* ================================================
   Modal / Popup
   ================================================ */
.gl-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}
.gl-modal-overlay.active {
    display: flex;
}
.gl-modal {
    background: var(--gl-white);
    border-radius: var(--gl-radius-lg);
    max-width: 680px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--gl-shadow-xl);
    position: relative;
    animation: glModalIn 0.3s ease;
}
@keyframes glModalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.gl-modal-header {
    padding: 28px 28px 0;
    position: relative;
}
.gl-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--gl-bg);
    color: var(--gl-text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--gl-transition);
    font-size: 20px;
}
.gl-modal-close:hover {
    background: var(--gl-danger-light);
    color: var(--gl-danger);
}
.gl-modal-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--gl-dark);
    margin: 0 0 4px;
    padding-right: 40px;
}
.gl-modal-cn {
    font-size: 16px;
    color: var(--gl-text-light);
    font-weight: 500;
}
.gl-modal-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}
.gl-modal-body {
    padding: 24px 28px;
}
.gl-modal-section {
    margin-bottom: 24px;
}
.gl-modal-section:last-child {
    margin-bottom: 0;
}
.gl-modal-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--gl-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.gl-modal-section-title svg {
    width: 16px;
    height: 16px;
}
.gl-modal-def {
    font-size: 15px;
    color: var(--gl-text);
    line-height: 1.8;
    margin: 0;
}
.gl-modal-example {
    padding: 16px;
    background: var(--gl-bg);
    border-radius: var(--gl-radius-sm);
    border-left: 4px solid var(--gl-secondary);
    font-size: 14px;
    color: var(--gl-text);
    line-height: 1.7;
    margin: 0;
}
.gl-modal-formula {
    padding: 16px;
    background: var(--gl-dark);
    border-radius: var(--gl-radius-sm);
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 14px;
    color: #e2e8f0;
    line-height: 1.6;
    overflow-x: auto;
    margin: 0;
}
.gl-modal-formula-empty {
    background: var(--gl-bg);
    color: #9ca3af;
}
.gl-modal-related {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.gl-modal-related-wrap {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.gl-modal-section-compact {
    margin-top: -4px;
}
.gl-modal-related-tag {
    padding: 6px 14px;
    background: var(--gl-primary-light);
    color: var(--gl-primary);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gl-transition);
    border: none;
    font-family: inherit;
}
.gl-modal-related-tag:hover {
    background: var(--gl-primary);
    color: #ffffff;
}
.gl-modal-related-tag.gl-modal-related-jump {
    background: rgba(14, 165, 233, 0.12);
    color: #0369a1;
}
.gl-modal-related-tag.gl-modal-related-jump:hover {
    background: #0369a1;
    color: #ffffff;
}
.gl-modal-related-text {
    cursor: default;
    border: 1px dashed rgba(37, 99, 235, 0.35);
    opacity: 0.8;
}
.gl-modal-related-text:hover {
    background: var(--gl-primary-light);
    color: var(--gl-primary);
}
.gl-modal-related-note {
    font-size: 12px;
    line-height: 1.6;
    color: var(--gl-text-light);
}
.gl-modal-knowledge-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    border-radius: var(--gl-radius);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(37,99,235,0.12);
}
.gl-modal-knowledge-copy {
    min-width: 0;
}
.gl-modal-knowledge-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--gl-dark);
    margin-bottom: 0;
}
.gl-modal-knowledge-text {
    font-size: 13px;
    line-height: 1.6;
    color: var(--gl-text-light);
}
.gl-modal-knowledge-btn {
    flex-shrink: 0;
    padding: 10px 16px;
    border-radius: var(--gl-radius-sm);
    border: 1px solid rgba(37,99,235,0.18);
    background: var(--gl-primary-bg);
    color: var(--gl-primary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-modal-knowledge-btn:hover {
    background: var(--gl-primary);
    border-color: var(--gl-primary);
    color: #ffffff;
}
.gl-modal-empty {
    color: #9ca3af;
    font-style: italic;
    font-size: 14px;
}
.gl-modal-footer {
    padding: 16px 28px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.gl-modal-nav {
    display: flex;
    gap: 8px;
}
.gl-modal-context {
    font-size: 13px;
    color: var(--gl-text-light);
}
.gl-modal-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--gl-border);
    border-radius: var(--gl-radius-sm);
    background: var(--gl-white);
    color: var(--gl-text);
    font-size: 13px;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-modal-nav-btn:hover {
    border-color: var(--gl-primary);
    color: var(--gl-primary);
}
.gl-modal-nav-btn:disabled {
    cursor: not-allowed;
    opacity: 0.45;
    color: var(--gl-text-light);
    background: var(--gl-bg);
    border-color: var(--gl-border);
}
.gl-modal-nav-btn:disabled:hover {
    color: var(--gl-text-light);
    background: var(--gl-bg);
    border-color: var(--gl-border);
}
.gl-modal-nav-btn svg {
    width: 14px;
    height: 14px;
}

/* ================================================
   Back to Top
   ================================================ */
.gl-back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gl-primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--gl-shadow-lg);
    z-index: 999;
    transition: var(--gl-transition);
    font-size: 20px;
}
.gl-back-top.visible {
    display: flex;
}
.gl-back-top:hover {
    background: var(--gl-primary-dark);
    transform: translateY(-2px);
}

/* ================================================
   No Results
   ================================================ */
.gl-no-results {
    text-align: center;
    padding: 80px 20px;
}
.gl-no-results svg {
    width: 80px;
    height: 80px;
    color: var(--gl-border);
    margin-bottom: 20px;
}
.gl-no-results h3 {
    font-size: 20px;
    color: var(--gl-dark);
    margin: 0 0 8px;
}
.gl-no-results p {
    color: var(--gl-text-light);
    font-size: 15px;
    margin: 0;
}
.gl-no-results-actions {
    margin-top: 18px;
}
.gl-no-results-correction {
    margin-top: 18px;
}
.gl-no-results-label {
    font-size: 13px;
    color: var(--gl-text-light);
    margin-bottom: 12px;
}
.gl-no-results-suggestions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    max-width: 720px;
    margin: 0 auto;
}
.gl-no-results-suggestion {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border: 1px solid var(--gl-border);
    border-radius: 999px;
    background: var(--gl-white);
    color: var(--gl-text);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--gl-transition);
    font-family: inherit;
}
.gl-no-results-suggestion:hover {
    border-color: var(--gl-primary);
    background: var(--gl-primary-bg);
    color: var(--gl-primary);
}
.gl-no-results-correction-btn {
    padding: 12px 18px;
    font-size: 14px;
    border-color: rgba(37,99,235,0.18);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    box-shadow: var(--gl-shadow-sm);
}

/* ================================================
   Footer Stats
   ================================================ */
.gl-footer {
    background: var(--gl-white);
    border-top: 1px solid var(--gl-border);
    padding: 40px 20px;
}
.gl-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}
.gl-footer-text {
    color: var(--gl-text-light);
    font-size: 14px;
    margin: 0;
}

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 768px) {
    .gl-hero {
        padding: 28px 16px 24px;
    }
    .gl-hero h1 {
        font-size: 24px;
    }
    .gl-hero-version {
        font-size: 12px;
        padding: 4px 9px;
    }
    .gl-hero-desc {
        font-size: 14px;
        margin-bottom: 12px;
    }
    .gl-hero-stats {
        gap: 16px;
    }
    .gl-hero-stat-num {
        font-size: 20px;
    }
    .gl-hero-tools {
        flex-direction: column;
        align-items: stretch;
    }
    .gl-hero-search {
        max-width: none;
    }
    .gl-filter-group {
        width: 100%;
        max-height: 48px;
        overflow: hidden;
    }
    .gl-filter-group.expanded {
        max-height: 300px;
        overflow: visible;
    }
    .gl-filter-btn {
        padding: 8px 14px;
        font-size: 13px;
    }
    .gl-alpha-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }
    .gl-knowledge-empty,
    .gl-knowledge-header,
    .gl-modal-knowledge-cta {
        flex-direction: column;
        align-items: stretch;
    }
    .gl-knowledge-grid {
        grid-template-columns: 1fr;
    }
    .gl-knowledge-panel {
        padding: 20px;
    }
    .gl-cards {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .gl-card {
        padding: 18px;
    }
    .gl-card-header {
        flex-direction: column;
        gap: 8px;
    }
    .gl-letter {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    .gl-modal {
        margin: 10px;
        max-height: 95vh;
    }
    .gl-modal-header {
        padding: 20px 20px 0;
    }
    .gl-modal-body {
        padding: 20px;
    }
    .gl-modal-title {
        font-size: 20px;
    }
    .gl-modal-knowledge-btn,
    .gl-knowledge-action {
        width: 100%;
    }
    .gl-results-info {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .gl-back-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (max-width: 480px) {
    .gl-hero {
        padding: 24px 12px 20px;
    }
    .gl-hero h1 {
        font-size: 20px;
    }
    .gl-hero-title {
        gap: 8px;
    }
    .gl-hero-version {
        font-size: 11px;
        padding: 4px 8px;
    }
    .gl-hero-icon {
        width: 44px;
        height: 44px;
    }
    .gl-hero-icon svg {
        width: 22px;
        height: 22px;
    }
}

/* ================================================
   Scrollbar
   ================================================ */
.gl-modal::-webkit-scrollbar {
    width: 6px;
}
.gl-modal::-webkit-scrollbar-track {
    background: transparent;
}
.gl-modal::-webkit-scrollbar-thumb {
    background: var(--gl-border);
    border-radius: 3px;
}
.gl-modal::-webkit-scrollbar-thumb:hover {
    background: var(--gl-text-light);
}

/* ================================================
   Animations
   ================================================ */
.gl-fade-in {
    animation: glFadeIn 0.4s ease forwards;
}
@keyframes glFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}