/* ============ 梨花直播官网 全站样式 ============ */
:root {
  --primary: #ff5c8a;
  --primary-dark: #e6396e;
  --primary-light: #ffe3ec;
  --accent: #7c4dff;
  --dark: #1c1230;
  --text: #333344;
  --text-light: #77778c;
  --bg: #ffffff;
  --bg-soft: #faf7fb;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(28, 18, 48, .08);
  --shadow-lg: 0 16px 50px rgba(255, 92, 138, .22);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(28, 18, 48, .06);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 800; color: var(--dark);
}
.logo .logo-icon {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center;
  color: #fff; font-size: 20px;
}
.logo em { font-style: normal; color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 16px; border-radius: 10px;
  font-size: 15px; color: var(--text);
  transition: all .2s;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-light); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.nav-cta {
  margin-left: 10px; color: #fff; font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 4px 14px rgba(255, 92, 138, .35);
}
.main-nav a.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); }

.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  width: 42px; height: 42px; border-radius: 10px;
  font-size: 22px; color: var(--dark);
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #fff6f9 0%, #f3efff 60%, #ffffff 100%);
  padding: 90px 0 100px;
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%;
  filter: blur(70px); opacity: .35; pointer-events: none;
}
.hero::before { width: 420px; height: 420px; background: var(--primary); top: -140px; right: -80px; }
.hero::after { width: 360px; height: 360px; background: var(--accent); bottom: -160px; left: -100px; }

.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px;
  align-items: center;
}
.hero h1 {
  font-size: 46px; line-height: 1.25; color: var(--dark);
  font-weight: 800; letter-spacing: 1px;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub {
  margin: 22px 0 34px; font-size: 18px; color: var(--text-light);
  max-width: 540px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 14px;
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: all .25s; border: none;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 6px 20px rgba(255, 92, 138, .4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ghost {
  color: var(--dark); background: #fff;
  border: 1.5px solid rgba(28, 18, 48, .12);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

.hero-stats {
  display: flex; gap: 42px; margin-top: 44px; flex-wrap: wrap;
}
.hero-stats .stat b { font-size: 28px; color: var(--dark); display: block; }
.hero-stats .stat span { font-size: 14px; color: var(--text-light); }

/* 手机模型 */
.phone-mock {
  width: 290px; margin: 0 auto;
  background: var(--dark); border-radius: 42px; padding: 12px;
  box-shadow: 0 30px 60px rgba(28, 18, 48, .3);
  transform: rotate(3deg);
}
.phone-screen {
  border-radius: 32px; overflow: hidden;
  background: linear-gradient(165deg, #2b1a4d 0%, #6a2c70 55%, #ff5c8a 130%);
  aspect-ratio: 9 / 19; position: relative;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 22px;
}
.phone-screen .live-tag {
  position: absolute; top: 20px; left: 18px;
  background: rgba(255, 60, 90, .95); color: #fff;
  font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  display: flex; align-items: center; gap: 6px;
}
.phone-screen .live-tag::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: #fff; animation: blink 1.2s infinite;
}
@keyframes blink { 50% { opacity: .3; } }
.phone-screen .viewers {
  position: absolute; top: 20px; right: 18px;
  background: rgba(0, 0, 0, .35); color: #fff;
  font-size: 12px; padding: 4px 12px; border-radius: 999px;
}
.phone-screen .anchor-name { color: #fff; font-weight: 700; font-size: 16px; }
.phone-screen .anchor-desc { color: rgba(255, 255, 255, .75); font-size: 12px; margin-top: 4px; }
.phone-screen .bubble {
  background: rgba(255, 255, 255, .14); color: #fff;
  font-size: 12px; border-radius: 12px; padding: 6px 12px;
  margin-top: 8px; width: fit-content; max-width: 90%;
  backdrop-filter: blur(4px);
}

/* ---------- 通用 section ---------- */
.section { padding: 90px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-head .kicker {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); background: var(--primary-light);
  padding: 5px 16px; border-radius: 999px; letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-head h2 { font-size: 34px; color: var(--dark); font-weight: 800; }
.section-head p { margin-top: 14px; color: var(--text-light); font-size: 16px; }

/* 卡片网格 */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
  background: #fff; border-radius: var(--radius); padding: 34px 28px;
  box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s;
  border: 1px solid rgba(28, 18, 48, .04);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 44px rgba(28, 18, 48, .12); }
.card .icon {
  width: 56px; height: 56px; border-radius: 16px; font-size: 26px;
  display: grid; place-items: center; margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary-light), #ece5ff);
}
.card h3 { font-size: 19px; color: var(--dark); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-light); }

/* 图文交替 */
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  align-items: center; padding: 44px 0;
}
.feature-row .txt h3 { font-size: 26px; color: var(--dark); margin-bottom: 14px; }
.feature-row .txt p { color: var(--text-light); margin-bottom: 18px; }
.feature-row .txt li {
  position: relative; padding-left: 28px; margin: 10px 0; font-size: 15px;
}
.feature-row .txt li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: var(--primary); font-weight: 800;
}
.feature-visual {
  border-radius: 24px; aspect-ratio: 4 / 3;
  display: grid; place-items: center; font-size: 72px;
  background: linear-gradient(140deg, #fff0f5, #efe9ff);
  box-shadow: var(--shadow);
}

/* 数字统计条 */
.stats-band {
  background: linear-gradient(120deg, var(--dark), #3a2260);
  border-radius: 24px; padding: 54px 40px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  text-align: center; color: #fff;
}
.stats-band b { font-size: 36px; display: block; color: #ffd0de; }
.stats-band span { font-size: 14px; opacity: .8; }

/* ---------- 下载区 ---------- */
.download-cta {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  border-radius: 28px; padding: 64px 48px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
}
.download-cta h2 { font-size: 32px; font-weight: 800; }
.download-cta p { margin: 14px auto 30px; max-width: 520px; opacity: .92; }
.store-btns { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.store-btn {
  display: flex; align-items: center; gap: 12px;
  background: rgba(0, 0, 0, .82); color: #fff;
  padding: 12px 26px; border-radius: 14px; transition: all .25s;
  text-align: left;
}
.store-btn:hover { transform: translateY(-3px); background: #000; }
.store-btn .s-icon { font-size: 28px; }
.store-btn small { display: block; font-size: 11px; opacity: .75; }
.store-btn b { font-size: 17px; }

.qr-box {
  margin: 34px auto 0; background: #fff; border-radius: 18px;
  padding: 18px; width: 168px; box-shadow: var(--shadow);
}
.qr-grid {
  width: 132px; height: 132px; margin: 0 auto;
  background:
    repeating-linear-gradient(0deg, var(--dark) 0 8px, transparent 8px 16px),
    repeating-linear-gradient(90deg, var(--dark) 0 8px, #fff 8px 16px);
  border-radius: 8px;
}
.qr-box p { color: var(--text-light); font-size: 12px; margin-top: 10px; text-align: center; }

/* 下载页系统要求表 */
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.spec-table th, .spec-table td { padding: 16px 22px; text-align: left; font-size: 15px; }
.spec-table th { background: var(--primary-light); color: var(--dark); font-weight: 700; }
.spec-table tr + tr td { border-top: 1px solid rgba(28, 18, 48, .06); }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: 14px; margin-bottom: 14px;
  box-shadow: var(--shadow); overflow: hidden;
  border: 1px solid rgba(28, 18, 48, .04);
}
.faq-item summary {
  cursor: pointer; padding: 20px 24px; font-weight: 600; font-size: 16px;
  color: var(--dark); list-style: none; position: relative; padding-right: 52px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 22px; top: 50%;
  transform: translateY(-50%); font-size: 22px; color: var(--primary);
  transition: transform .2s;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item .faq-body { padding: 0 24px 20px; color: var(--text-light); font-size: 15px; }

/* ---------- 关于页 ---------- */
.page-hero {
  background: linear-gradient(160deg, #fff6f9, #f3efff);
  padding: 70px 0 60px; text-align: center;
}
.page-hero h1 { font-size: 38px; color: var(--dark); font-weight: 800; }
.page-hero p { margin-top: 14px; color: var(--text-light); max-width: 620px; margin-inline: auto; }
.breadcrumb { font-size: 13px; color: var(--text-light); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--primary); }

.timeline { max-width: 720px; margin: 0 auto; position: relative; padding-left: 32px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 2px; background: linear-gradient(var(--primary), var(--accent));
}
.timeline-item { position: relative; padding: 0 0 34px 24px; }
.timeline-item::before {
  content: ""; position: absolute; left: -31px; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 4px solid var(--primary);
}
.timeline-item .t-year { font-weight: 800; color: var(--primary); font-size: 17px; }
.timeline-item h3 { color: var(--dark); font-size: 17px; margin: 4px 0 6px; }
.timeline-item p { color: var(--text-light); font-size: 14.5px; }

/* ---------- 法律文档页 ---------- */
.legal-doc {
  max-width: 860px; margin: 0 auto; background: #fff;
  border-radius: var(--radius); padding: 48px 52px; box-shadow: var(--shadow);
}
.legal-doc h2 { font-size: 22px; color: var(--dark); margin: 34px 0 12px; }
.legal-doc h2:first-child { margin-top: 0; }
.legal-doc p, .legal-doc li { color: var(--text); font-size: 15px; margin-bottom: 10px; }
.legal-doc ul, .legal-doc ol { padding-left: 24px; margin-bottom: 14px; }
.legal-doc ul li { list-style: disc; }
.legal-doc ol li { list-style: decimal; }
.legal-doc .doc-meta { color: var(--text-light); font-size: 13px; margin-bottom: 26px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--dark); color: rgba(255, 255, 255, .75); padding: 64px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 42px;
  padding-bottom: 44px;
}
.footer-grid h4 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-grid a { display: block; font-size: 14px; margin: 9px 0; opacity: .75; transition: all .2s; }
.footer-grid a:hover { opacity: 1; color: var(--primary); }
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; opacity: .7; max-width: 300px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0; text-align: center; font-size: 13px; opacity: .6;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .hero .sub { margin-inline: auto; }
  .hero-btns, .hero-stats { justify-content: center; }
  .cards { grid-template-columns: 1fr 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 30px; }
  .stats-band { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .hero { padding: 56px 0 64px; }
  .hero h1 { font-size: 32px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 26px; }
  .cards { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr 1fr; padding: 38px 24px; }
  .legal-doc { padding: 30px 22px; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 14px 20px 22px; gap: 4px;
    box-shadow: 0 18px 30px rgba(28, 18, 48, .12);
  }
  .main-nav.open { display: flex; }
  .main-nav a.nav-cta { margin-left: 0; text-align: center; }
}