/* ===== CSS Variables - 国际主义黑白风格 ===== */
:root {
    --primary: #000000;
    --primary-light: #333333;
    --accent: #666666;
    --success: #000000;
    --warning: #999999;
    --bg: #ffffff;
    --card: #ffffff;
    --card-border: #cccccc;
    --card-shadow: none;
    --text: #000000;
    --text-sub: #444444;
    --text-light: #888888;
    --border: #e0e0e0;
    --blur: 0px;
    --radius: 3px;
    --radius-sm: 2px;
    --radius-lg: 4px;
    --font: 'Helvetica Neue', 'Arial', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --mono: 'SF Mono', 'Roboto Mono', 'Menlo', monospace;
    --transition: all 0.2s ease;
}
body.dark-mode {
    --primary: #ffffff;
    --primary-light: #cccccc;
    --accent: #999999;
    --bg: #0a0a0a;
    --card: #111111;
    --card-border: #333333;
    --text: #ffffff;
    --text-sub: #cccccc;
    --text-light: #777777;
    --border: #2a2a2a;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; line-height: 1.6; padding: 20px; padding-bottom: 80px; overflow-x: hidden; transition: background 0.3s, color 0.3s; }
#bg-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; background-color: #f5f7fa; transition: background-color 0.5s ease; }
body.dark-mode #bg-canvas { background-color: #0f1115; }
.app-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.page { display: none; width: 100%; max-width: 720px; animation: fadeUp 0.3s ease; }
.page.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* Welcome */
.corner-tools-link { position: fixed; top: 20px; right: 20px; z-index: 1000; font-family: var(--mono); font-size: 0.75rem; text-transform: uppercase; color: var(--primary); text-decoration: none; border: 1px solid var(--primary); padding: 6px 12px; transition: var(--transition); letter-spacing: 1px; }
.corner-tools-link:hover { background: var(--primary); color: var(--bg); }

.hero-card.swiss-grid { background: var(--card); border: 2px solid var(--primary); padding: 60px 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; text-align: left; }
.hero-left { display: flex; flex-direction: column; justify-content: flex-start; border-right: 2px solid var(--primary); padding-right: 40px; }
.hero-right { display: flex; flex-direction: column; justify-content: space-between; }

.hero-badge { display: inline-block; padding: 4px 0; font-size: 0.75rem; font-weight: 700; letter-spacing: 2px; margin-bottom: 24px; font-family: var(--mono); text-transform: uppercase; color: var(--text-light); }
.swiss-title { font-size: 3.5rem; font-weight: 800; color: var(--text); line-height: 1.1; letter-spacing: -2px; margin-bottom: 16px; font-family: 'Helvetica Neue', Arial, sans-serif; }
.hero-subtitle { font-size: 1rem; color: var(--text-sub); font-family: var(--mono); letter-spacing: 1px; text-transform: uppercase; margin-bottom: auto; }

.hero-logo { margin-bottom: 24px; }
.abstract-logo { width: 60px; height: 60px; }
.hero-desc { font-size: 0.95rem; color: var(--text); line-height: 1.8; margin-bottom: 32px; padding-left: 16px; border-left: 4px solid var(--primary); }

/* Buttons */
.huge-btn { padding: 20px 40px; font-size: 1.25rem; font-weight: 800; border: 2px solid var(--primary); background: var(--primary); color: var(--bg); cursor: pointer; transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1); font-family: 'Helvetica Neue', Arial, sans-serif; text-transform: uppercase; letter-spacing: 2px; text-align: center; width: 100%; display: block; }
.huge-btn:hover { background: transparent; color: var(--primary); }
.primary-btn:not(.huge-btn), .sec-btn { padding: 12px 24px; font-size: 0.85rem; font-weight: 600; border: 1px solid var(--primary); cursor: pointer; transition: var(--transition); font-family: var(--mono); display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-transform: uppercase; letter-spacing: 1px; }
.btn-icon { width: 16px; height: 16px; flex-shrink: 0; }
.primary-btn:not(.huge-btn) { background: var(--primary); color: var(--bg); }
.primary-btn:not(.huge-btn):hover { background: var(--bg); color: var(--primary); }
.sec-btn { background: transparent; color: var(--text); }
.sec-btn:hover { background: var(--primary); color: var(--bg); }

.swiss-meta { display: flex; justify-content: flex-start; gap: 24px; margin-top: 0; margin-bottom: 32px; font-size: 0.75rem; color: var(--text-sub); font-family: var(--mono); font-weight: 600; border-top: 1px solid var(--border); padding-top: 16px; }
.meta-item { display: inline-block; }

/* Test Page */
.test-card { background: var(--card); border: 2px solid var(--primary); padding: 40px; position: relative; min-height: 400px; }
.test-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; gap: 24px; border-bottom: 2px solid var(--primary); padding-bottom: 20px; }
.progress-wrap { flex: 1; display: flex; align-items: center; gap: 16px; }
.progress-track { flex: 1; height: 4px; background: var(--border); overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: var(--primary); transition: width 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
.progress-info { font-size: 1.25rem; font-weight: 800; color: var(--text); font-family: var(--mono); min-width: 60px; text-align: right; letter-spacing: -1px; }
.progress-sep { opacity: 0.3; margin: 0 4px; font-weight: 400; }
.type-badge { padding: 4px 12px; background: var(--text); color: var(--bg); font-size: 0.75rem; font-weight: 700; white-space: nowrap; font-family: var(--mono); text-transform: uppercase; letter-spacing: 2px; }
.question-area { position: relative; z-index: 10; }
.question-text { font-size: 1.5rem; font-weight: 700; margin-bottom: 32px; line-height: 1.5; color: var(--text); display: block; letter-spacing: -0.5px; }
.choices-list { display: flex; flex-direction: column; gap: 12px; }
.choice-item { padding: 18px 24px; background: transparent; border: 2px solid var(--border); cursor: pointer; transition: all 0.2s ease; display: flex; align-items: center; gap: 20px; color: var(--text); }
.choice-item:hover { border-color: var(--primary); transform: translateX(4px); }
.choice-item.selected { border-color: var(--primary); background: var(--primary); color: var(--bg); transform: translateX(8px); }
.choice-letter { font-weight: 800; font-size: 1rem; flex-shrink: 0; font-family: var(--mono); color: var(--text-light); }
.choice-item.selected .choice-letter { color: var(--bg); opacity: 0.7; }
.choice-text { flex: 1; font-size: 1rem; line-height: 1.5; font-weight: 500; }
.open-input textarea { width: 100%; min-height: 160px; padding: 20px; border: 2px solid var(--border); font-size: 1rem; font-family: var(--font); resize: vertical; background: transparent; color: var(--text); transition: var(--transition); line-height: 1.6; }
.open-input textarea:focus { outline: none; border-color: var(--primary); }
.input-hint { margin-top: 12px; font-size: 0.85rem; color: var(--text-light); font-family: var(--mono); text-transform: uppercase; letter-spacing: 1px; }
.test-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; }
.test-nav button { padding: 16px 32px; font-size: 1rem; font-weight: 700; letter-spacing: 2px; flex: 1; }

/* Loading */
.loading-card { background: var(--card); border: 2px solid var(--primary); padding: 80px 40px; text-align: center; }
.loading-spinner { position: relative; width: 80px; height: 80px; margin: 0 auto 32px; }
.spinner-ring { position: absolute; inset: 0; border: 2px solid transparent; border-top-color: var(--primary); border-radius: 50%; animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite; }
.spinner-ring.delay-1 { inset: 12px; animation-delay: -0.4s; }
.spinner-ring.delay-2 { inset: 24px; animation-delay: -0.8s; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-card h2 { font-size: 1.5rem; margin-bottom: 12px; font-weight: 800; letter-spacing: -0.5px; }
.loading-text { color: var(--text-sub); animation: pulseText 1.5s ease-in-out infinite; font-size: 0.85rem; font-family: var(--mono); text-transform: uppercase; letter-spacing: 2px; }
@keyframes pulseText { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Result Card - Shareable */
.result-card { background: var(--card); border: 2px solid var(--primary); overflow: hidden; margin-bottom: 12px; }
.result-card-inner { padding: 12px 14px; }

.swiss-header { display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 3px solid var(--primary); padding-bottom: 6px; margin-bottom: 8px; }
.header-qr-img { width: 38px; height: 38px; object-fit: contain; display: block; }
.header-text .card-title { font-size: 1.75rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 4px; line-height: 1; }
.header-text .card-subtitle { font-size: 0.7rem; color: var(--text-sub); font-family: var(--mono); letter-spacing: 2px; text-transform: uppercase; }
.abstract-logo-small { width: 36px; height: 36px; }

.main-gene-swiss { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 6px; align-items: end; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.swiss-gene-left { border-right: 2px solid var(--primary); padding-right: 20px; }
.gene-label { font-size: 0.6rem; color: var(--text-light); font-family: var(--mono); letter-spacing: 2px; margin-bottom: 6px; }
.gene-percentage { font-size: 4rem; font-weight: 800; line-height: 0.8; letter-spacing: -3px; font-family: 'Helvetica Neue', Arial, sans-serif; display: flex; align-items: flex-start; }
.pct-sign { font-size: 1.75rem; margin-left: 4px; line-height: 1; }
.gene-designer { font-size: 1.75rem; font-weight: 800; line-height: 1.1; margin-bottom: 6px; letter-spacing: -1px; }
.en-name { font-size: 0.9rem; color: var(--text-light); font-weight: 400; display: block; margin-top: 4px; }
.gene-field { font-size: 0.8rem; color: var(--text-sub); font-family: var(--mono); letter-spacing: 1px; }
.gene-field strong { color: var(--text); font-weight: 700; }

/* Gene Bars Visualization - Infographic */
.infographic-section { margin-bottom: 6px; }
.chart-title { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--text); margin-bottom: 6px; font-family: var(--mono); display: flex; align-items: center; gap: 12px; }
.chart-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.viz-container { position: relative; padding: 4px 0; }
.viz-grid { position: absolute; top: 0; left: 120px; right: 40px; bottom: 0; pointer-events: none; }
.viz-grid-line { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--border); opacity: 0.5; }
.gene-bars-swiss { display: flex; flex-direction: column; gap: 10px; position: relative; z-index: 1; }
.viz-row { display: flex; align-items: center; }
.viz-label { width: 120px; flex-shrink: 0; padding-right: 16px; text-align: right; }
.viz-name { font-weight: 700; font-size: 0.85rem; display: block; line-height: 1.2; }
.viz-era { font-size: 0.6rem; color: var(--text-light); font-family: var(--mono); }
.viz-track { flex: 1; height: 2px; background: var(--border); position: relative; margin-right: 40px; }
.viz-fill { position: absolute; left: 0; top: -4px; height: 10px; background: var(--primary); }
.viz-value-marker { position: absolute; top: -18px; transform: translateX(-50%); font-size: 0.7rem; font-weight: 800; font-family: var(--mono); background: var(--bg); padding: 0 4px; color: var(--text); border: 1px solid var(--text); border-radius: 12px; line-height: 1.2; }

/* Personality Dimensions */
.personality-chart { margin-bottom: 6px; }
.swiss-radar { display: flex; flex-direction: column; gap: 8px; }
.radar-item { display: flex; flex-direction: column; gap: 3px; }
.radar-tags { display: flex; justify-content: space-between; font-size: 0.7rem; font-family: var(--mono); font-weight: 700; letter-spacing: 1px; color: var(--text-sub); }
.radar-bar { height: 10px; border: 1px solid var(--border); position: relative; }
.radar-center-line { position: absolute; left: 50%; top: -3px; bottom: -3px; width: 2px; background: var(--text); }
.radar-fill { height: 100%; background: var(--primary); opacity: 0.2; transition: width 1s cubic-bezier(0.2, 0.8, 0.2, 1); }

/* Designer Profile */
.swiss-profile { margin-bottom: 6px; border: 2px solid var(--primary); padding: 10px 12px; position: relative; }
.profile-header { position: absolute; top: -9px; left: 20px; background: var(--bg); padding: 0 8px; font-family: var(--mono); font-size: 0.7rem; font-weight: 700; letter-spacing: 2px; }
.profile-desc { font-size: 0.95rem; color: var(--text); line-height: 1.4; font-style: italic; margin-bottom: 6px; font-weight: 500; }
.profile-traits { display: flex; flex-wrap: wrap; gap: 8px; }
.trait-tag-swiss { font-size: 0.7rem; font-family: var(--mono); font-weight: 600; color: var(--text-sub); letter-spacing: 1px; }

/* AI Insight */
.swiss-insight { margin-bottom: 6px; padding: 10px 12px; background: var(--text); color: var(--bg); }
.insight-label { font-size: 0.7rem; font-family: var(--mono); font-weight: 700; letter-spacing: 2px; margin-bottom: 4px; opacity: 0.7; }
.insight-body { font-size: 0.85rem; line-height: 1.5; opacity: 0.9; }
.insight-body h3 { display: none; }
.insight-body h4 { font-size: 0.8rem; font-weight: 700; margin: 4px 0 2px; font-family: var(--mono); text-transform: uppercase; color: var(--bg); opacity: 0.8; }
.insight-body p { margin-bottom: 3px; }
.insight-body ul { margin: 2px 0; padding-left: 16px; }
.insight-body li { margin: 1px 0; line-height: 1.4; }

/* QR Section */
.swiss-qr { margin-bottom: 8px; display: flex; justify-content: center; }
.qr-placeholder { width: 80px; height: 80px; border: 2px solid var(--primary); display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; }
.qr-cross { position: absolute; width: 20px; height: 20px; top: 50%; left: 50%; transform: translate(-50%, -50%); opacity: 0.2; }
.qr-cross::before { content: ''; position: absolute; top: 9px; left: 0; width: 20px; height: 2px; background: var(--primary); }
.qr-cross::after { content: ''; position: absolute; top: 0; left: 9px; width: 2px; height: 20px; background: var(--primary); }
.qr-text { font-size: 0.55rem; font-family: var(--mono); font-weight: 800; letter-spacing: 2px; text-align: center; line-height: 1.2; z-index: 1; background: var(--bg); padding: 4px; margin-top: 40px; }

/* Card Footer */
.swiss-footer { padding-top: 4px; border-top: 1px solid var(--border); display: flex; justify-content: center; font-size: 0.55rem; font-weight: 700; font-family: var(--mono); letter-spacing: 2px; text-transform: uppercase; color: var(--text-light); }

/* Result Actions */
.result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 6px; }
.result-actions button { padding: 4px 8px; font-size: 0.65rem; font-weight: 600; text-align: center; }

/* Site Footer */
.site-footer { position: fixed; bottom: 0; left: 0; right: 0; z-index: 100; background: var(--card); border-top: 1px solid var(--border); }
.footer-content { padding: 10px 20px; text-align: center; padding-bottom: 4px; }
.powered-by { font-size: 0.6rem; color: var(--text-light); font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 2px; font-family: var(--mono); }
.footer-contact { font-size: 0.7rem; color: var(--text-sub); font-family: var(--mono); }
.footer-contact span { color: var(--text-light); }
.footer-strip { height: 36px; overflow: hidden; }
.footer-strip iframe { width: 100%; height: 36px; border: none; }
.icp { text-align: center; font-size: 0.65rem; color: var(--text-light); font-family: var(--mono); padding: 4px 0 8px; background: var(--card); }

/* Toast */
.toast { position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(20px); padding: 10px 20px; background: var(--text); color: var(--bg); font-size: 0.8rem; font-weight: 500; border-radius: var(--radius-sm); opacity: 0; transition: all 0.3s ease; z-index: 1000; font-family: var(--mono); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Responsive */
@media (max-width: 640px) {
    .hero-card.swiss-grid { grid-template-columns: 1fr; padding: 32px 20px; gap: 24px; }
    .hero-left { border-right: none; border-bottom: 2px solid var(--primary); padding-right: 0; padding-bottom: 24px; }
    .swiss-title { font-size: 2.5rem; }
    .test-card { padding: 24px 20px; }
    .test-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    .progress-wrap { width: 100%; }
    .question-text { font-size: 1.25rem; margin-bottom: 24px; }
    .result-card-inner { padding: 12px 14px; }
    .main-gene-swiss { grid-template-columns: 1fr; gap: 8px; text-align: left; }
    .swiss-gene-left { border-right: none; padding-right: 0; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
    .gene-percentage { font-size: 4rem; }
    .gene-designer { font-size: 1.5rem; }
    .viz-grid { left: 80px; right: 20px; }
    .viz-label { width: 80px; padding-right: 8px; }
    .viz-name { font-size: 0.8rem; }
    .viz-track { margin-right: 20px; }
}