:root { --bg: #f5f5f7; --card: #fff; --text: #1d1d1f; --accent: #007aff; }
body { background: var(--bg); font-family: 'Inter', sans-serif; color: var(--text); padding: 20px; margin: 0; }
.container { max-width: 480px; margin: 0 auto; }

/* 头部 */
header { text-align: center; margin-bottom: 30px; }
.back-btn { font-size: 10px; font-weight: 700; color: #999; text-decoration: none; letter-spacing: 1px; }
h1 { font-family: 'Noto Serif SC', serif; font-size: 24px; margin: 10px 0 5px; }
p { font-size: 12px; color: #888; margin: 0; }

/* 卡片 */
.card { background: var(--card); border-radius: 16px; padding: 24px; box-shadow: 0 4px 20px rgba(0,0,0,0.04); margin-bottom: 20px; }
.section { margin-bottom: 24px; }
label { display: block; font-size: 10px; font-weight: 700; color: #888; margin-bottom: 10px; letter-spacing: 1px; }

/* 选项按钮 */
.radio-group { display: flex; flex-direction: column; gap: 10px; }
.radio-btn input { display: none; }
.radio-btn span { display: block; padding: 14px; background: #f9f9f9; border-radius: 10px; font-size: 14px; font-weight: 600; text-align: center; border: 1px solid transparent; transition: all 0.2s; cursor: pointer; }
.radio-btn input:checked + span { background: #1d1d1f; color: #fff; border-color: #000; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

/* 滑块 */
input[type=range] { width: 100%; accent-color: #1d1d1f; }
.range-labels { display: flex; justify-content: space-between; font-size: 10px; color: #ccc; margin-top: 5px; }

/* 按钮 */
.btn-black { width: 100%; background: #1d1d1f; color: #fff; border: none; padding: 16px; border-radius: 12px; font-size: 13px; font-weight: 700; letter-spacing: 1px; cursor: pointer; }
.btn-black:active { transform: scale(0.98); opacity: 0.9; }

/* 结果卡片 */
.hidden { display: none; }
.result { border-top: 4px solid #1d1d1f; animation: slideUp 0.5s ease; }
.ticket-header { display: flex; justify-content: space-between; font-size: 10px; font-weight: 700; color: #ccc; border-bottom: 1px dashed #eee; padding-bottom: 15px; margin-bottom: 15px; letter-spacing: 1px; }
.plan-body h3 { font-size: 15px; margin: 20px 0 10px; border-left: 3px solid #007aff; padding-left: 10px; }
.plan-body ul { padding-left: 20px; font-size: 14px; line-height: 1.6; color: #444; }
.plan-body li { margin-bottom: 6px; }

@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }