/* AI 需求分析器——样式 */
:root {
    --bg: #f8f9fa;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #6c757d;
    --border: #e2e8f0;
    --accent: #4f46e5;
    --accent-hover: #4338ca;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 6px rgba(0,0,0,0.07), 0 10px 15px rgba(0,0,0,0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* 布局 */
.app-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
}
.app-header .header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.app-header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
}
.app-header .subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}
.settings-btn {
    position: absolute;
    top: 16px;
    right: 24px;
    padding: 6px 10px;
    font-size: 1.1rem;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

/* 输入区 */
.input-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 24px;
}
.input-card label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.95rem;
}
.input-card .hint {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.input-card textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s;
    line-height: 1.6;
}
.input-card textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.input-card .actions {
    display: flex;
    gap: 12px;
    margin-top: 12px;
    align-items: center;
}
.btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg); }

/* 加载动画 */
.loading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px;
    color: var(--text-secondary);
}
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 结果区 */
.result-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

/* 维度指示器 */
.eval-bar {
    padding: 20px 24px;
    background: #fafbfc;
    border-bottom: 1px solid var(--border);
}
.eval-bar .title {
    font-weight: 700;
    margin-bottom: 16px;
    font-size: 0.95rem;
}
.dim-sliders {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.dim-item {
    display: grid;
    grid-template-columns: 90px 1fr 40px;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}
.dim-label {
    font-weight: 600;
    white-space: nowrap;
}
.dim-track {
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    position: relative;
    overflow: visible;
}
.dim-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}
.dim-fill.high { background: var(--success); width: 85%; }
.dim-fill.medium { background: var(--warning); width: 50%; }
.dim-fill.low { background: var(--danger); width: 15%; }
.dim-fill.uncertain { background: #9ca3af; width: 5%; }
.dim-value {
    font-weight: 700;
    font-size: 0.8rem;
    text-align: right;
}
.dim-value.H { color: var(--success); }
.dim-value.M { color: var(--warning); }
.dim-value.L { color: var(--danger); }
.dim-value.U { color: #9ca3af; }

.eval-evidence {
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid var(--border);
}

/* 报告正文 */
.report-body {
    padding: 24px;
    line-height: 1.8;
}
.report-body h1 { font-size: 1.4rem; margin: 1.5em 0 0.6em; border-bottom: 2px solid var(--border); padding-bottom: 4px; }
.report-body h1:first-child { margin-top: 0; }
.report-body h2 { font-size: 1.15rem; margin: 1.3em 0 0.5em; }
.report-body h3 { font-size: 1.0rem; margin: 1em 0 0.4em; }
.report-body p { margin: 0.6em 0; }
.report-body ul, .report-body ol { margin: 0.4em 0; padding-left: 1.5em; }
.report-body li { margin: 0.3em 0; }
.report-body strong { color: var(--accent); }
.report-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 8px 16px;
    margin: 12px 0;
    background: #f8f5ff;
    border-radius: 0 6px 6px 0;
    color: #4a3f8a;
}
.report-body code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}
.report-body pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 12px 0;
}
.report-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* 快捷示例 */
.quick-examples {
    margin-bottom: 24px;
}
.quick-examples .title {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.example-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.chip {
    padding: 6px 14px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
}
.chip:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.error-msg {
    padding: 16px 24px;
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

/* 设置面板 */
.settings-form .form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}
.settings-form input {
    flex: 1;
    min-width: 150px;
    padding: 8px 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: inherit;
    transition: border-color 0.2s;
}
.settings-form input:focus {
    outline: none;
    border-color: var(--accent);
}
.status-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: 8px;
}

/* ── 步骤指示器 ── */
.step-panel { margin-bottom: 24px; }
.step-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    flex-wrap: wrap;
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: #e5e7eb;
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 0.75rem;
    transition: all 0.3s;
}
.step-num.active { background: var(--accent); color: #fff; }
.step-num.done { background: var(--success); color: #fff; }
.step-arrow { color: var(--text-secondary); font-size: 0.75rem; }

/* ── 章节标题 ── */
.section-title { font-size: 1.1rem; font-weight: 700; }
.section-subtitle { font-size: 0.9rem; font-weight: 600; margin-bottom: 12px; color: var(--text); }

/* ── 子场景卡片 ── */
.subscene-grid { display: flex; flex-direction: column; gap: 12px; }
.subscene-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    background: #fafbfc;
    transition: border-color 0.2s;
}
.subscene-card:hover { border-color: var(--accent); }
.sc-header { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sc-badge {
    background: var(--accent);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    white-space: nowrap;
}
.sc-title-input {
    flex: 1;
    min-width: 200px;
    padding: 4px 8px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    background: transparent;
    font-family: inherit;
}
.sc-title-input:focus { outline: none; border-color: var(--accent); background: #fff; }
.sc-desc-input {
    width: 100%;
    min-height: 50px;
    margin-top: 8px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    font-family: inherit;
    resize: vertical;
    line-height: 1.5;
}
.sc-desc-input:focus { outline: none; border-color: var(--accent); }
.sc-rationale {
    margin-top: 6px;
    font-size: 0.78rem;
    color: var(--text-secondary);
}
.sc-question {
    margin-top: 4px;
    font-size: 0.78rem;
    color: #92400e;
    padding: 4px 8px;
    background: #fffbeb;
    border-radius: 4px;
}
.sc-evidence {
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.btn-icon {
    width: 24px; height: 24px;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-icon:hover { background: #fee2e2; color: var(--danger); }

/* ── 紧凑维度行 ── */
.dim-row { display: flex; gap: 16px; flex-wrap: wrap; margin: 6px 0; }
.dim-item-compact {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.78rem;
}
.dim-item-compact .dim-label { font-weight: 600; font-size: 0.78rem; }
.dim-item-compact .dim-track { width: 50px; height: 6px; background: #e5e7eb; border-radius: 3px; overflow: hidden; }
.dim-item-compact .dim-fill { height: 100%; border-radius: 3px; }
.dim-item-compact .dim-value { font-weight: 700; font-size: 0.7rem; }

/* ── 定位标签 ── */
.pos-tag {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    background: #ede9fe;
    color: var(--accent);
    white-space: nowrap;
}

/* ── 关系面板 ── */
.rel-panel {
    padding: 12px 24px;
    border-top: 1px solid var(--border);
    background: #f8faff;
}
.rel-title { font-weight: 600; font-size: 0.85rem; margin-bottom: 6px; }
.rel-item { font-size: 0.8rem; color: var(--text-secondary); margin: 3px 0; }

/* ── 问题面板 ── */
.questions-panel {
    padding: 12px 24px;
    background: #fffbeb;
    border-bottom: 1px solid #fcd34d;
}

/* ── 矛盾与策略 ── */
.contradiction-item {
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    background: #fef2f2;
}
.contra-scenes {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 4px;
}
.contra-dim {
    display: inline-block;
    background: var(--danger);
    color: #fff;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 0.7rem;
    margin-bottom: 4px;
}
.contra-impact { font-size: 0.8rem; color: var(--danger); }

.strategy-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 16px;
    margin-bottom: 10px;
    background: #fafbfc;
}
.strategy-card.recommended {
    border-color: var(--accent);
    border-width: 2px;
    background: #f8f5ff;
}
.strategy-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.strategy-pattern {
    display: inline-block;
    padding: 2px 8px;
    background: #e0e7ff;
    color: var(--accent);
    border-radius: 4px;
    font-size: 0.75rem;
    margin-bottom: 6px;
}
.strategy-pros-cons { display: flex; gap: 12px; margin: 8px 0; flex-wrap: wrap; }
.strategy-pros-cons > div { flex: 1; min-width: 200px; font-size: 0.82rem; }
.strategy-pros-cons .pros { color: var(--success); }
.strategy-pros-cons .cons { color: var(--danger); }

.risk-item { font-size: 0.82rem; margin: 4px 0; color: var(--text-secondary); }

/* ── 问题答复行 ── */
.sc-question-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 6px;
    background: #fffbeb;
    transition: background 0.2s;
}
.sc-question-row:hover { background: #fef3c7; }
.sc-question-text { flex: 1; font-size: 0.78rem; color: #92400e; }
.question-reply-area { margin-top: 2px; padding: 0 8px; }
.btn-sm { padding: 4px 12px; font-size: 0.75rem; }