/* 巧鹊药历 落地页 — 品牌薄荷绿；PC + H5 自适应 */
:root {
  --green: #1fb6a6;
  --green-d: #0f8e80;
  --green-s: #e6f7f4;
  --accent: #ff6b6b;
  --bg: #f3f6f8;
  --card: #fff;
  --text: #1a2530;
  --text-2: #5a6b7a;
  --text-3: #9aa7b2;
  --line: #edf1f4;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(26, 37, 48, 0.07);
  --grad: linear-gradient(135deg, #1fb6a6, #0f8e80);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--green-d); text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.25; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* 焦点可见 + 动效降级 */
:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}
.skip-link {
  position: absolute; left: -9999px; top: 0; background: #fff; color: var(--green-d);
  padding: 10px 16px; border-radius: 8px; z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* 顶栏 */
.nav {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { border-radius: 9px; }
.brand-name { font-weight: 800; font-size: 19px; color: var(--text); }
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--text-2); font-size: 15px; }
.nav-links a:hover { color: var(--green-d); }

/* 按钮 */
.btn {
  font: inherit; font-weight: 700; cursor: pointer; border: none;
  padding: 13px 24px; border-radius: 999px; font-size: 16px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(31, 182, 166, 0.32); }
.btn-primary:hover { box-shadow: 0 10px 26px rgba(31, 182, 166, 0.42); }
.btn-ghost { background: #fff; color: var(--green-d); border: 2px solid var(--green); }
.btn-ghost:hover { background: var(--green-s); }

/* Hero */
.hero { background: radial-gradient(120% 90% at 80% -10%, var(--green-s) 0%, var(--bg) 55%); padding: 56px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero-title { font-size: 46px; font-weight: 900; letter-spacing: -0.5px; }
.hero-sub { margin: 20px 0 28px; font-size: 18px; color: var(--text-2); max-width: 30em; }
.hero-sub strong { color: var(--green-d); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note { margin-top: 18px; font-size: 14px; color: var(--text-3); }

/* 手机样机（真实截图填充屏幕，截图自带状态栏，故无需画刘海） */
.hero-visual { display: flex; justify-content: center; }
.phone {
  position: relative; width: 280px; padding: 10px; border-radius: 40px;
  background: #0f1720; box-shadow: 0 30px 60px rgba(15, 80, 72, 0.28);
}
.phone-shot { display: block; width: 100%; height: auto; border-radius: 30px; }

/* 区块通用 */
.section { padding: 64px 0; }
.sec-title { font-size: 30px; font-weight: 800; text-align: center; margin-bottom: 36px; }

/* 功能卡片 */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: var(--card); border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--shadow); }
.card-ico { width: 52px; height: 52px; border-radius: 14px; background: var(--green-s); color: var(--green-d); display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 16px; }
.card h3 { font-size: 19px; margin-bottom: 8px; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }

/* 福利区 */
.welfare { background: var(--green-s); }
.welfare-card { background: #fff; border-radius: 26px; box-shadow: var(--shadow); padding: 40px; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 36px; align-items: center; }
.welfare-text h2 { font-size: 28px; }
.welfare-text p { color: var(--text-2); font-size: 16px; margin: 14px 0 18px; }
.welfare-text strong { color: var(--green-d); }
.welfare-steps { margin: 0; padding-left: 20px; color: var(--text-2); font-size: 15px; }
.welfare-steps li { margin: 8px 0; }
.welfare-qr { margin: 0; text-align: center; }
.qr-thumb { border: none; background: none; padding: 10px; border-radius: 18px; cursor: pointer; }
.qr-thumb img { width: 200px; height: 200px; border-radius: 12px; border: 1px solid var(--line); }
.qr-thumb:hover { background: var(--green-s); }
.welfare-qr figcaption { margin-top: 8px; font-size: 13px; color: var(--text-3); }

/* 使用方式 */
.use-inner { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 36px; align-items: center; }
.use-inner .sec-title { text-align: left; margin-bottom: 20px; }

/* 页脚 */
.foot { background: #0f1720; color: #aebccb; padding: 40px 0; }
.foot-inner { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.foot-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 18px; }
.foot-brand .brand-logo { border-radius: 8px; }
.foot-links { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; }
.foot-links a { color: #aebccb; font-size: 14px; }
.foot-links a:hover { color: #fff; }
.foot-meta { font-size: 13px; line-height: 1.9; color: #7e8ea0; }
.icp { display: flex; gap: 6px 18px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.icp:empty { display: none; }
.icp a { color: #7e8ea0; }
.icp a:hover { color: #aebccb; }

/* 弹层 */
.qr-modal { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; }
.qr-modal[hidden] { display: none; }
.qr-modal-mask { position: absolute; inset: 0; background: rgba(15, 23, 32, 0.55); }
.qr-modal-box { position: relative; background: #fff; border-radius: 24px; padding: 30px; width: min(86vw, 340px); text-align: center; box-shadow: 0 30px 70px rgba(0, 0, 0, 0.3); }
.qr-modal-title { font-size: 20px; margin-bottom: 18px; }
.qr-modal-img { width: 240px; height: 240px; margin: 0 auto; border-radius: 14px; border: 1px solid var(--line); }
.qr-modal-cap { color: var(--text-3); font-size: 14px; margin: 14px 0 20px; }

/* 响应式 H5 */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 36px 0 44px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; text-align: center; }
  .hero-title { font-size: 34px; }
  .hero-sub { font-size: 16px; margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .section { padding: 44px 0; }
  .sec-title { font-size: 24px; margin-bottom: 26px; }
  .cards { grid-template-columns: 1fr 1fr; gap: 14px; }
  .card { padding: 20px 16px; }
  .welfare-card, .use-inner { grid-template-columns: 1fr; padding: 28px 20px; text-align: center; }
  .use-inner .sec-title { text-align: center; }
  .welfare-steps { text-align: left; display: inline-block; }
}
@media (max-width: 420px) {
  .cards { grid-template-columns: 1fr; }
  .hero-title { font-size: 30px; }
}