/* ===== 泰康幸福延年N款 利益演示器 样式 ===== */
:root {
  --brand: #0a4d8f;
  --brand-2: #0d63b4;
  --brand-light: #e8f1fb;
  --brand-lighter: #f4f8fd;
  --accent: #e8590c;
  --green: #12805c;
  --text: #1c2534;
  --text-2: #5a6b82;
  --text-3: #8a98ab;
  --border: #e2e8f0;
  --bg: #f2f5f9;
  --card: #ffffff;
  --shadow: 0 2px 10px rgba(16, 42, 77, 0.07), 0 10px 30px rgba(16, 42, 77, 0.05);
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.app { min-height: 100vh; display: flex; flex-direction: column; }

/* 头部 */
.hero {
  background: linear-gradient(135deg, #083b6e 0%, #0a4d8f 55%, #0d63b4 100%);
  color: #fff;
  padding: 44px 24px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; right: -80px; top: -80px;
  width: 260px; height: 260px; background: rgba(255,255,255,.06); border-radius: 50%;
}
.hero::before {
  content: ""; position: absolute; left: -60px; bottom: -100px;
  width: 220px; height: 220px; background: rgba(255,255,255,.05); border-radius: 50%;
}
.hero-inner { max-width: 960px; margin: 0 auto; position: relative; z-index: 1; }
.brand-badge {
  display: inline-block; background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.35); padding: 4px 14px; border-radius: 999px;
  font-size: 15px; letter-spacing: 3px; margin-bottom: 14px; backdrop-filter: blur(4px);
}
.hero-title { font-size: clamp(22px, 4vw, 30px); font-weight: 700; letter-spacing: 1px; }
.hero-sub { margin-top: 8px; font-size: 16px; opacity: .9; }
.hero-plan {
  margin-top: 12px; display: inline-block; background: rgba(255,255,255,.12);
  padding: 5px 16px; border-radius: 8px; font-size: 15px; color: #dbe9f8;
}

/* 主体 */
.main {
  flex: 1; max-width: 1000px; width: 100%; margin: 0 auto;
  padding: 26px 16px 40px; display: flex; flex-direction: column; gap: 22px;
}
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--border); padding: 24px;
}
.card-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.card-head h2 { font-size: 20px; font-weight: 700; color: var(--brand); }
.card-tag { font-size: 15px; color: var(--text-2); }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 15px; font-weight: 600; color: var(--text-2); }
.input-wrap {
  display: flex; align-items: center; border: 1.5px solid var(--border); border-radius: 10px;
  background: #fbfcfe; overflow: hidden; transition: border-color .2s, box-shadow .2s;
}
.input-wrap:focus-within { border-color: var(--brand-2); box-shadow: 0 0 0 3px rgba(13,99,180,.12); background: #fff; }
.input-wrap input {
  flex: 1; border: none; outline: none; background: transparent; padding: 11px 14px;
  font-size: 16px; color: var(--text); font-weight: 600; min-width: 0;
}
.input-wrap .unit {
  padding: 0 14px; font-size: 15px; color: var(--text-3); border-left: 1px solid var(--border);
  align-self: stretch; display: flex; align-items: center; white-space: nowrap;
}
.select-wrap { position: relative; }
.select-wrap select {
  flex: 1; width: 100%; border: none; outline: none; background: transparent;
  padding: 11px 12px; font-size: 16px; font-weight: 600; color: var(--text);
  appearance: none; -webkit-appearance: none; cursor: pointer;
}
.select-wrap::after {
  content: ""; position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 6px solid var(--text-3);
  pointer-events: none;
}

/* 分段选择 */
.segmented { display: flex; border: 1.5px solid var(--border); border-radius: 10px; overflow: hidden; background: #fbfcfe; }
.seg-btn {
  flex: 1; border: none; background: transparent; padding: 11px 0; font-size: 16px;
  font-weight: 600; color: var(--text-2); cursor: pointer; transition: all .18s;
}
.seg-btn.active { background: var(--brand); color: #fff; }

/* 高级区（方式二） */
.advanced { margin-top: 18px; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.advanced-btn {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--brand-lighter); border: none; cursor: pointer;
  font-size: 15px; font-weight: 600; color: var(--brand);
}
.advanced-arrow { transition: transform .2s; }
.advanced-btn[aria-expanded="true"] .advanced-arrow { transform: rotate(180deg); }
.advanced-panel { padding: 16px; border-top: 1px solid var(--border); }
.adv-block + .adv-block { margin-top: 16px; }
.adv-title { font-size: 14px; font-weight: 600; color: var(--text-2); margin-bottom: 8px; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.adv-head { display: contents; }
.adv-head span { font-size: 12px; color: var(--text-3); padding: 0 2px; }
.adv-grid input {
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 14px;
  color: var(--text); outline: none; background: #fbfcfe; width: 100%;
}
.adv-grid input:focus { border-color: var(--brand-2); }
.adv-del {
  border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text-3);
  cursor: pointer; font-size: 14px; height: 38px;
}
.adv-del:hover { border-color: #e5484d; color: #e5484d; }
.adv-add {
  margin-top: 10px; border: 1px dashed var(--brand-2); border-radius: 8px; background: transparent;
  color: var(--brand-2); font-size: 14px; padding: 7px 14px; cursor: pointer;
}
.adv-add:hover { background: var(--brand-lighter); }

/* 按钮 */
.btn-calc {
  width: 100%; margin-top: 18px; border: none; border-radius: 10px;
  background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff;
  font-size: 17px; font-weight: 700; padding: 14px; cursor: pointer; letter-spacing: 2px;
  transition: transform .12s, box-shadow .2s, opacity .2s; box-shadow: 0 6px 16px rgba(10,77,143,.25);
}
.btn-calc:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(10,77,143,.32); }
.btn-calc:active { transform: translateY(0); }
.btn-reset {
  width: 100%; margin-top: 10px; border: 1px solid var(--border); border-radius: 10px;
  background: #fff; color: var(--text-2); font-size: 15px; padding: 9px; cursor: pointer; transition: all .18s;
}
.btn-reset:hover { border-color: var(--brand-2); color: var(--brand-2); }

/* 概览 */
.overview {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 24px;
}
.ov-item {
  padding: 16px; border-radius: 12px; background: var(--brand-lighter);
  border: 1px solid #dbe7f5; text-align: center;
}
.ov-label { font-size: 13px; color: var(--text-2); }
.ov-value { font-size: 20px; font-weight: 700; color: var(--brand); margin-top: 4px; }
.ov-value.accent { color: var(--accent); }
.ov-note { font-size: 12px; color: var(--text-3); margin-top: 2px; }

/* 区块 */
.section { margin-bottom: 6px; }
.section + .section { margin-top: 24px; }
.section-title { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.section-note { font-size: 14px; color: var(--text-3); margin-bottom: 12px; }

/* 表格 */
.table-wrap {
  overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--border); border-radius: 10px;
  background: #fff;
}
.data-table { border-collapse: collapse; width: 100%; font-size: 14px; }
.data-table th, .data-table td {
  padding: 9px 12px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--border);
}
.data-table th {
  background: var(--brand-light); color: var(--brand); font-weight: 600; text-align: center; font-size: 13px;
  position: sticky; top: 0;
}
.data-table td:first-child, .data-table th:first-child { text-align: center; }
.data-table tbody tr:nth-child(even) { background: #fafcff; }
.data-table tbody tr:hover { background: var(--brand-lighter); }
.data-table td.accent { color: var(--accent); font-weight: 600; }

/* 风险提示 */
.risk-card { background: #fffaf4; border-color: #f4e0c8; }
.risk-title { font-size: 16px; font-weight: 700; color: #a3550e; margin-bottom: 10px; }
.risk-list { padding-left: 18px; }
.risk-list li { font-size: 13px; color: #7a5a35; margin-bottom: 6px; }

/* 加载/错误 */
.loading { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 30px; color: var(--text-2); }
.spinner {
  width: 22px; height: 22px; border: 3px solid var(--border); border-top-color: var(--brand);
  border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.error-box {
  background: #fdecec; border: 1px solid #f5c2c2; color: #b3271d; padding: 14px 16px;
  border-radius: 10px; font-size: 14px;
}

.footer { text-align: center; padding: 18px 16px; color: var(--text-3); font-size: 13px; }

/* 移动端 */
@media (max-width: 720px) {
  .hero { padding: 34px 16px 30px; }
  .hero-title { font-size: 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .overview { grid-template-columns: repeat(2, 1fr); }
  .card { padding: 18px 14px; }
  .adv-grid { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: 13px; }
  .data-table th, .data-table td { padding: 8px 10px; }
}