:root {
  --primary: #07c160;
  --primary-dark: #06a050;
  --ink: #1f2329;
  --muted: #6b7280;
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e5e7eb;
  --danger: #c0392b;
  --warn-bg: #fff7e6;
  --warn-border: #ffd591;
  --radius: 12px;
  --shadow: 0 2px 10px rgba(0,0,0,.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}
.container { width: 100%; max-width: 920px; margin: 0 auto; padding: 0 16px; }

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶栏 */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 50;
}
.site-header .nav { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { font-weight: 700; font-size: 18px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--primary-dark); }

main.container { padding-top: 24px; padding-bottom: 40px; min-height: 60vh; }

/* 页脚 */
.site-footer { background: #1f2329; color: #c9d1d9; padding: 24px 0; margin-top: 32px; }
.site-footer .disclaimer { font-size: 12px; color: #f0c674; line-height: 1.7; }
.site-footer .copyright { font-size: 12px; color: #8b949e; margin-top: 8px; }

/* 按钮 */
.btn {
  display: inline-block; border: none; border-radius: 8px; cursor: pointer;
  font-size: 15px; padding: 11px 20px; text-align: center; transition: .15s;
  text-decoration: none; font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: #eef2f5; color: var(--ink); }
.btn-danger { background: #ffecea; color: var(--danger); }
.btn-lg { font-size: 17px; padding: 14px 30px; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 12px; font-size: 13px; }

/* 首页 */
.hero { text-align: center; padding: 40px 8px 24px; }
.hero-title { font-size: 28px; line-height: 1.35; font-weight: 800; }
.hero-sub { color: var(--muted); margin: 18px auto; max-width: 620px; }
.hero-note { color: var(--muted); font-size: 13px; margin-top: 12px; }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 28px; }
.feature-card { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.feature-icon { font-size: 30px; }
.feature-card h3 { margin: 8px 0 6px; font-size: 17px; }
.feature-card p { color: var(--muted); font-size: 14px; }

.how { margin-top: 32px; background: var(--card); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.how h2 { font-size: 18px; margin-bottom: 10px; }
.how-steps { padding-left: 20px; color: var(--muted); }
.how-steps li { margin: 6px 0; }

/* 通用页面标题 */
.page-title { font-size: 24px; font-weight: 800; margin-bottom: 8px; }
.page-desc { color: var(--muted); margin-bottom: 16px; }
.doc-wrap { max-width: 760px; }
.doc-wrap h2 { font-size: 18px; margin: 24px 0 8px; }
.doc-wrap p, .doc-list li { color: #374151; }
.doc-list { padding-left: 22px; }
.doc-list li { margin: 6px 0; }
.lead-p { color: #374151; }
.doc-date { color: var(--muted); font-size: 13px; }

/* FAQ */
.faq-item { background: var(--card); border-radius: var(--radius); padding: 18px 20px; margin-top: 14px; box-shadow: var(--shadow); }
.faq-item h3 { font-size: 16px; margin-bottom: 6px; color: var(--primary-dark); }
.faq-item p { color: #374151; font-size: 15px; }

/* 免责声明 */
.disclaimer { font-size: 12px; color: #b45309; line-height: 1.7; }
.disclaimer-box {
  background: var(--warn-bg); border: 1px solid var(--warn-border);
  border-radius: 10px; padding: 12px 14px; font-size: 13px; color: #92400e; line-height: 1.7; margin-bottom: 18px;
}
.quiz-disclaimer { margin-top: 24px; }

/* 问卷 */
.quiz-wrap { max-width: 640px; margin: 0 auto; }
.progress { height: 8px; background: #e5e7eb; border-radius: 6px; overflow: hidden; margin-top: 10px; }
.progress-bar { height: 100%; width: 20%; background: var(--primary); transition: width .25s; }
.progress-text { text-align: right; font-size: 13px; color: var(--muted); margin-top: 6px; }

.step { border: none; background: var(--card); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.step legend { font-size: 18px; font-weight: 700; margin-bottom: 16px; padding: 0; }
.field { display: block; margin-bottom: 18px; }
.field > span { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; color: #374151; }
.field input[type="text"], .field input[type="number"], .field input[type="tel"], .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 16px; background: #fff;
}
.field input:focus, .field select:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

.radio-group { display: flex; flex-direction: column; gap: 10px; }
.radio-group label {
  display: flex; align-items: center; gap: 8px; padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 15px; cursor: pointer; background: #fff;
}
.radio-group label:has(input:checked) { border-color: var(--primary); background: #eafff2; }

.check-group { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.check-card {
  display: flex; align-items: center; gap: 8px; padding: 12px 14px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 15px; cursor: pointer; background: #fff;
}
.check-card:has(input:checked) { border-color: var(--primary); background: #eafff2; }

.step-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; }
.step-nav .btn { flex: 1; }

/* 报告页 */
.report-wrap { max-width: 760px; }
.summary-card { background: var(--card); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); margin-bottom: 18px; }
.summary-card h2 { font-size: 16px; margin-bottom: 10px; }
.summary-list { list-style: none; }
.summary-list li { display: flex; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 15px; }
.summary-list li:last-child { border-bottom: none; }
.sum-key { color: var(--muted); min-width: 96px; flex-shrink: 0; }
.sum-val { font-weight: 600; }

.plans-title { font-size: 18px; margin: 22px 0 12px; }
.plans { display: flex; flex-direction: column; gap: 16px; }
.plan-card { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border-top: 4px solid var(--primary); }
.plan-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.plan-country { font-size: 13px; color: var(--muted); }
.plan-name { font-size: 19px; font-weight: 800; }
.plan-type { background: #eafff2; color: var(--primary-dark); font-size: 13px; padding: 4px 10px; border-radius: 20px; white-space: nowrap; }
.plan-match { font-size: 12px; color: var(--muted); margin: 8px 0 4px; }

.plan-row { margin-top: 14px; }
.plan-label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.plan-row p { color: #374151; font-size: 15px; }

.plan-highlight { display: flex; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.hl-item { flex: 1; min-width: 200px; background: #f0fbf4; border: 1px solid #b7ebc8; border-radius: 10px; padding: 12px 14px; }
.hl-label { display: block; font-size: 13px; color: var(--muted); }
.hl-val { display: block; font-size: 18px; font-weight: 800; color: var(--primary-dark); margin-top: 4px; }
.cost-note { font-size: 12px; color: var(--muted); margin-top: 4px; }

.mat-list, .risk-list { padding-left: 20px; color: #374151; font-size: 14px; }
.mat-list li, .risk-list li { margin: 4px 0; }
.risk-list { color: #92400e; }

/* 转化区 */
.convert-box { background: linear-gradient(135deg,#eafff2,#f0fbf4); border: 1px solid #b7ebc8; border-radius: var(--radius); padding: 22px; margin-top: 26px; }
.convert-tip { color: #374151; font-size: 15px; margin-bottom: 16px; }
.convert-grid { display: flex; gap: 18px; flex-wrap: wrap; }
.wx-box { text-align: center; flex: 0 0 200px; }
.wx-qr { width: 160px; height: 160px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.wx-id { font-size: 15px; margin-top: 8px; }
.wx-hint { font-size: 12px; color: var(--muted); }
.lead-form { flex: 1; min-width: 240px; }
.lead-msg { font-size: 14px; margin-top: 10px; min-height: 20px; }

.empty { color: var(--muted); padding: 20px; text-align: center; }

/* 保存方案到邮箱 */
.email-save-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; margin-top: 22px; box-shadow: var(--shadow); }
.email-tip { color: var(--muted); font-size: 14px; margin: 4px 0 14px; }
.email-form { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.email-form .email-field { flex: 1; min-width: 240px; margin-bottom: 0; }
.email-form .email-field > span { font-size: 14px; font-weight: 600; margin-bottom: 8px; color: #374151; }
.email-form .email-field input { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 16px; }
.email-form .btn { white-space: nowrap; }
@media (max-width: 600px) {
  .email-form { flex-direction: column; align-items: stretch; }
  .email-form .btn { width: 100%; }
}

/* 后台 */
.login-wrap { max-width: 360px; margin: 80px auto; background: var(--card); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.login-wrap h1 { font-size: 22px; text-align: center; margin-bottom: 20px; }
.login-form label { display: block; margin-bottom: 14px; font-size: 14px; }
.login-form input { width: 100%; padding: 11px 12px; border: 1px solid var(--border); border-radius: 8px; margin-top: 6px; font-size: 15px; }
.login-error { color: var(--danger); text-align: center; margin-bottom: 12px; }
.login-hint { font-size: 12px; color: var(--muted); text-align: center; margin-top: 14px; }

.admin-wrap { max-width: 960px; }
.admin-bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 10px; flex-wrap: wrap; }
.admin-nav { display: flex; gap: 12px; margin: 18px 0; flex-wrap: wrap; }
.admin-tip { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.stat-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-bottom: 8px; }
.stat-card { background: var(--card); border-radius: var(--radius); padding: 18px; text-align: center; box-shadow: var(--shadow); }
.stat-num { font-size: 30px; font-weight: 800; color: var(--primary-dark); }
.stat-label { font-size: 13px; color: var(--muted); margin-top: 4px; }

.admin-table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-top: 10px; font-size: 14px; }
.admin-table th, .admin-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.admin-table th { background: #f3f4f6; font-weight: 600; }
.admin-table tr:last-child td { border-bottom: none; }

.plan-mini { background: var(--card); border-left: 3px solid var(--primary); padding: 12px 14px; border-radius: 8px; margin-top: 10px; font-size: 14px; box-shadow: var(--shadow); }
.plan-mini div { color: #374151; margin-top: 4px; }

.project-form { background: var(--card); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); margin-top: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.form-grid label { display: block; font-size: 13px; font-weight: 600; color: #374151; }
.form-grid label.full, .form-grid fieldset.full { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; margin-top: 6px; font-size: 15px; font-weight: 400; font-family: inherit;
}
.form-grid fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.form-grid fieldset legend { font-size: 13px; font-weight: 600; padding: 0 6px; }
.check-inline { display: flex; flex-wrap: wrap; gap: 10px; }
.check-inline label { font-weight: 400; display: flex; align-items: center; gap: 4px; }

/* 移动端适配 */
@media (max-width: 600px) {
  .hero-title { font-size: 23px; }
  .features { grid-template-columns: 1fr; }
  .stat-cards { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .convert-grid { flex-direction: column; align-items: center; }
  .nav-links { font-size: 12px; gap: 10px; }
  .admin-table { font-size: 13px; }
  .admin-table th, .admin-table td { padding: 8px 8px; }
}