/* ===== 变量 ===== */
:root {
  --pink-50: #fdf2f8;
  --pink-100: #fce7f3;
  --pink-200: #fbcfe8;
  --pink-300: #f9a8d4;
  --pink-400: #f472b6;
  --pink-500: #ec4899;
  --pink-600: #db2777;
  --pink-700: #be185d;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --orange-50: #fff7ed;
  --orange-100: #ffedd5;
  --orange-500: #f97316;
  --orange-600: #ea580c;
  --red-50: #fef2f2;
  --red-100: #fee2e2;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --red-700: #b91c1c;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

/* ===== Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(135deg, var(--pink-50) 0%, var(--white) 50%, var(--pink-50) 100%);
  color: var(--gray-700);
  min-height: 100vh;
  line-height: 1.6;
}

/* ===== 通用布局 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

.page-header {
  text-align: center;
  padding: 32px 16px 24px;
}

.page-header h1 {
  font-size: 1.75rem;
  color: var(--pink-600);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-header p {
  margin-top: 8px;
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ===== 卡片 ===== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  border: 1px solid var(--pink-100);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--pink-700);
  margin-bottom: 6px;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 12px;
}

.card-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--gray-400);
}

.card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  font-family: var(--font-sans);
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  box-shadow: 0 2px 8px rgba(244, 114, 182, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  box-shadow: 0 4px 12px rgba(244, 114, 182, 0.4);
}

.btn-secondary {
  background: var(--pink-50);
  color: var(--pink-600);
  border: 1px solid var(--pink-200);
}

.btn-secondary:hover {
  background: var(--pink-100);
}

.btn-flex {
  flex: 1;
}

.btn-full {
  width: 100%;
}

.btn-mt {
  margin-top: 12px;
}

.btn-mt-lg {
  margin-top: 16px;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-sm {
  font-size: 0.8rem;
}

.text-muted {
  color: var(--gray-400);
}

/* ===== 量表页 ===== */
.scale-instruction {
  background: var(--pink-50);
  border: 1px solid var(--pink-200);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* 量表卡片网格 */
#scale-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.question-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--pink-100);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.question-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.question-index {
  font-size: 0.8rem;
  color: var(--pink-400);
  margin-bottom: 4px;
}

.option-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  font-size: 0.9rem;
  color: var(--gray-600);
}

.option-item:hover {
  border-color: var(--pink-300);
  background: var(--pink-50);
}

.option-item input[type="radio"] {
  accent-color: var(--pink-500);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.option-item.selected {
  border-color: var(--pink-400);
  background: var(--pink-50);
  color: var(--pink-700);
  font-weight: 500;
}

/* ===== 结果页整体布局 ===== */
.result-overall {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.result-overall-info {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 24px;
}

.result-overall-radar {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#radar-container {
  width: 100%;
  max-width: 320px;
}

/* ===== 雷达图 ===== */
.radar-svg {
  width: 100%;
  height: auto;
  display: block;
}

.radar-label {
  transition: font-size 0.15s ease;
}

.radar-score {
  transition: font-size 0.15s ease;
}

.radar-dot {
  transition: r 0.15s ease;
}

.radar-polygon {
  transition: stroke-width 0.15s ease, fill-opacity 0.15s ease;
}

/* ===== 结果页 ===== */
.result-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 24px;
  text-align: center;
  margin-bottom: 20px;
}

.result-score {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 12px 0 4px;
}

.result-meta {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 12px 0;
}

.meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-bottom: 2px;
}

.meta-value {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-700);
}

.result-label {
  font-size: 0.85rem;
  color: var(--gray-400);
}

.result-level {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  margin: 12px 0;
}

.result-advice {
  text-align: left;
  background: var(--pink-50);
  border-radius: var(--radius-md);
  padding: 14px;
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-top: 16px;
}

/* 多维度结果表格 */
.dimension-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.9rem;
}

.dimension-table th,
.dimension-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--gray-100);
}

.dimension-table th {
  color: var(--pink-600);
  font-weight: 600;
  background: var(--pink-50);
}

.dimension-table td:last-child {
  text-align: right;
}

.level-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--white);
}

/* ===== 进度指示器 ===== */
.progress-bar {
  height: 4px;
  background: var(--pink-100);
  border-radius: 999px;
  margin-bottom: 20px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--pink-400), var(--pink-500));
  border-radius: 999px;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.8rem;
  color: var(--gray-400);
  text-align: center;
  margin-bottom: 8px;
}

/* ===== 底部操作栏 ===== */
.action-bar {
  position: sticky;
  bottom: 0;
  background: var(--white);
  border-top: 1px solid var(--pink-100);
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
  z-index: 10;
}

.action-bar .btn {
  flex: 1;
}

/* ===== 返回链接 ===== */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--pink-500);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.back-link:hover {
  color: var(--pink-600);
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--gray-400);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
  .container {
    padding: 16px 12px;
  }

  .page-header {
    padding: 24px 12px 16px;
  }

  .page-header h1 {
    font-size: 1.5rem;
  }

  .card {
    padding: 16px;
  }

  .result-score {
    font-size: 2rem;
  }

  .option-item {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  .action-bar {
    padding: 10px 12px;
  }

  .dimension-table {
    font-size: 0.8rem;
  }

  .dimension-table th,
  .dimension-table td {
    padding: 8px 6px;
  }

  .result-overall {
    grid-template-columns: 1fr;
  }

  #radar-container {
    max-width: 260px;
  }
}

/* ===== 动画 ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

/* ===== 打印 ===== */
@media print {
  body {
    background: white;
  }

  .action-bar,
  .back-link {
    display: none;
  }

  .card,
  .question-card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ===== 下载按钮 ===== */
#btn-download {
  background: var(--green-50);
  border-top: 1px solid var(--green-100);
  transition: background 0.2s ease;
  user-select: none;
}

#btn-download:hover {
  background: var(--green-100);
}

#btn-download span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--green-600);
}

/* ===== 社交链接 ===== */
.social-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 20px 16px;
  padding-bottom: 80px;
  flex-wrap: wrap;
}

.btn-social {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.btn-social:active {
  transform: scale(0.97);
}

.btn-qq {
  background: linear-gradient(135deg, #4a90d9, #357abd);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(74, 144, 217, 0.3);
}

.btn-qq:hover {
  background: linear-gradient(135deg, #357abd, #2868a8);
  box-shadow: 0 4px 12px rgba(74, 144, 217, 0.4);
  transform: translateY(-2px);
}

.btn-bbs {
  background: linear-gradient(135deg, var(--pink-400), var(--pink-500));
  color: var(--white);
  box-shadow: 0 2px 8px rgba(244, 114, 182, 0.3);
}

.btn-bbs:hover {
  background: linear-gradient(135deg, var(--pink-500), var(--pink-600));
  box-shadow: 0 4px 12px rgba(244, 114, 182, 0.4);
  transform: translateY(-2px);
}

.btn-author {
  background: linear-gradient(135deg, var(--gray-500), var(--gray-600));
  color: var(--white);
  box-shadow: 0 2px 8px rgba(107, 114, 128, 0.3);
}

.btn-author:hover {
  background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
  box-shadow: 0 4px 12px rgba(107, 114, 128, 0.4);
  transform: translateY(-2px);
}

@media (max-width: 480px) {
  .social-links {
    gap: 8px;
    padding: 16px 8px;
  }

  .btn-social {
    font-size: 0.85rem;
    padding: 8px 16px;
  }
}