/* ══════════════════════════════════════════════════════════
   恋恋时光 — 首页营销样式
   ══════════════════════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;background:#fff0f6;color:#3d2a4e;overflow-x:hidden}
a{text-decoration:none;color:inherit}

/* Hero 主题色（getHero() 注入 body class，切换节日主题） */
body.theme-default{--hero-accent:#d63384;--hero-accent2:#9b59b6}
body.theme-520{--hero-accent:#ff4d6d;--hero-accent2:#ff8fa3}
body.theme-qixi{--hero-accent:#c44dff;--hero-accent2:#ff7eb3}
body.theme-valentine{--hero-accent:#e84393;--hero-accent2:#fd79a8}

/* 爱心画布 */
#heartCanvas{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0}

/* 导航 */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,245,251,0.88);backdrop-filter:blur(14px);
  border-bottom:1.5px solid #ffd6ea;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-size:20px;font-weight:800;color:#d63384;letter-spacing:.5px}
.nav-logo span{font-size:22px;margin-right:6px}
.nav-btns{display:flex;gap:10px}
.btn-nav-login{padding:7px 18px;border-radius:20px;border:2px solid #d63384;color:#d63384;font-weight:600;font-size:14px;transition:.2s}
.btn-nav-login:hover{background:#d63384;color:#fff}
.btn-nav-reg{padding:7px 18px;border-radius:20px;background:linear-gradient(135deg,#ff6bb5,#d63384);color:#fff;font-weight:600;font-size:14px;
  box-shadow:0 3px 14px rgba(214,51,132,.35);transition:.2s}
.btn-nav-reg:hover{transform:translateY(-1px);box-shadow:0 5px 18px rgba(214,51,132,.45)}

/* Hero */
.hero{position:relative;z-index:1;min-height:calc(100vh - 60px);display:flex;align-items:center;justify-content:center;
  padding:60px 24px;flex-wrap:wrap;gap:40px}
.hero-left{flex:1;min-width:280px;max-width:500px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(214,51,132,.08);color:var(--hero-accent,#d63384);
  border:1.5px solid var(--hero-accent,#d63384);border-radius:20px;padding:6px 16px;font-size:13px;font-weight:600;margin-bottom:22px}
.hero-title{font-size:clamp(34px,6vw,58px);font-weight:900;line-height:1.15;color:#2d1840;margin-bottom:18px}
.hero-title em{font-style:normal;background:linear-gradient(135deg,var(--hero-accent,#d63384),var(--hero-accent2,#9b59b6));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:16px;line-height:1.8;color:#7a5a8a;margin-bottom:30px;max-width:420px}
.hero-cd{display:inline-block;margin-bottom:24px;background:rgba(214,51,132,.08);border:1.5px solid rgba(214,51,132,.2);
  color:#4a3060;border-radius:14px;padding:9px 16px;font-size:14px;font-weight:600}
.hero-cd span{color:var(--hero-accent,#d63384);font-weight:800;font-size:16px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.btn-hero{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:28px;
  background:linear-gradient(135deg,var(--hero-accent,#d63384),var(--hero-accent2,#9b59b6));color:#fff;font-weight:700;font-size:16px;
  box-shadow:0 6px 24px rgba(214,51,132,.4);transition:.25s}
.btn-hero:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(214,51,132,.5)}
.btn-hero-outline{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:28px;
  border:2px solid var(--hero-accent,#d63384);color:var(--hero-accent,#d63384);font-weight:700;font-size:16px;transition:.25s;background:rgba(255,255,255,.7)}
.btn-hero-outline:hover{background:var(--hero-accent,#d63384);color:#fff}
.hero-stats{display:flex;gap:0;background:rgba(255,255,255,.75);border-radius:18px;border:1.5px solid #ffd6ea;
  padding:18px 24px;width:fit-content;backdrop-filter:blur(8px)}
.stat{text-align:center;padding:0 20px}
.stat-divider{width:1.5px;background:#ffd6ea;align-self:stretch}
.stat .num{display:block;font-size:26px;font-weight:800;color:var(--hero-accent,#d63384)}
.stat .lbl{font-size:12px;color:#9a7baa;margin-top:2px}

/* 移动端演示卡（手机外壳 + 可切换 mock 屏） */
.hero-right{flex:0 0 auto;display:flex;justify-content:center;align-items:center}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.phone{position:relative;width:280px;background:#1c1030;border-radius:38px;padding:14px 12px 10px;
  box-shadow:0 24px 60px rgba(154,91,186,.35);border:3px solid #2d1840;animation:float 4s ease-in-out infinite}
.phone-notch{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:96px;height:18px;background:#1c1030;border-radius:0 0 12px 12px;z-index:3}
.phone-screen{background:linear-gradient(160deg,#fff0f8,#f3e8ff);border-radius:26px;height:460px;overflow:hidden;position:relative}
.pscreen{display:none;padding:30px 18px 18px;height:100%;box-sizing:border-box}
.pscreen.active{display:block;animation:psFade .4s ease}
@keyframes psFade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.ps-top{color:#fff;font-size:14px;font-weight:700;opacity:.95;margin:-30px -18px 14px;text-align:center;
  background:linear-gradient(135deg,var(--hero-accent,#d63384),var(--hero-accent2,#9b59b6));padding:34px 18px 16px}
.ps-days{font-size:58px;font-weight:900;color:#2d1840;line-height:1;text-align:center}
.ps-days span{font-size:18px;font-weight:600;color:#9a7baa;margin-left:4px}
.ps-together{color:#9a7baa;font-size:12px;text-align:center;margin-top:6px}
.ps-cd{margin-top:16px;background:#fff;border:1px solid #ffe0ef;border-radius:12px;padding:10px 12px;font-size:13px;color:#4a3060;text-align:center}
.ps-cd b{color:var(--hero-accent,#d63384)}
.ps-hd{font-size:15px;font-weight:700;color:#2d1840;margin-bottom:14px;text-align:center}
.ps-list{list-style:none}
.ps-list li{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;background:#fff;margin-bottom:10px;box-shadow:0 2px 10px rgba(214,51,132,.06)}
.ps-ico{font-size:18px}
.ps-t{color:#7a5a8a;font-size:13px;flex:1}
.ps-list b{color:#4a3060;font-size:13px;font-weight:600}
.ps-quote{background:linear-gradient(135deg,#fff0f8,#f8eeff);border:1px dashed #e8b0d5;border-radius:14px;padding:18px;font-size:14px;color:#9b59b6;font-style:italic;line-height:1.8;text-align:center}
.ps-quote-by{margin-top:14px;text-align:center;font-size:12px;color:#bba}
.phone-tabs{display:flex;justify-content:center;gap:14px;padding:12px 0 2px}
.ptab{width:42px;height:42px;border-radius:13px;border:none;background:rgba(255,255,255,.1);font-size:18px;cursor:pointer;transition:.2s}
.ptab.active{background:var(--hero-accent,#d63384);transform:translateY(-2px);box-shadow:0 4px 14px rgba(214,51,132,.4)}

/* 功能区 */
.features{position:relative;z-index:1;background:#fff;padding:80px 24px}
.section-hd{text-align:center;margin-bottom:48px}
.section-hd h2{font-size:clamp(24px,4vw,36px);font-weight:800;color:#2d1840}
.section-hd h2 em{font-style:normal;color:#d63384}
.section-hd p{color:#9a7baa;margin-top:10px;font-size:15px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px;max-width:900px;margin:0 auto}
.f-card{background:#fff;border:1.5px solid #ffeaf4;border-radius:20px;padding:28px 24px;
  box-shadow:0 4px 20px rgba(214,51,132,.06);transition:.25s;text-align:center}
.f-card:hover{transform:translateY(-4px);box-shadow:0 10px 32px rgba(214,51,132,.14);border-color:#ffb3d4}
.f-icon-wrap{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,#ffecf6,#f3e5ff);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px}
.f-card h3{font-size:17px;font-weight:700;color:#2d1840;margin-bottom:8px}
.f-card p{font-size:13px;color:#8a6a9a;line-height:1.7}

/* 定价区 */
.pricing{position:relative;z-index:1;background:linear-gradient(180deg,#fff5fb 0%,#f0e8ff 100%);padding:80px 24px}
.pricing-grid{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;max-width:960px;margin:0 auto}
.price-card{background:#fff;border:2px solid #ffeaf4;border-radius:24px;padding:32px 28px;width:220px;flex:0 0 auto;
  text-align:center;position:relative;transition:.25s;box-shadow:0 4px 20px rgba(154,91,186,.06)}
.price-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(154,91,186,.14)}
.price-card.featured{border-color:#d63384;background:linear-gradient(180deg,#fff0fa,#fff);
  box-shadow:0 8px 36px rgba(214,51,132,.2)}
.featured-ribbon{position:absolute;top:-1px;right:20px;background:linear-gradient(135deg,#ff6bb5,#d63384);
  color:#fff;font-size:11px;font-weight:700;padding:4px 12px;border-radius:0 0 10px 10px}
.price-type{font-size:14px;font-weight:700;color:#9b59b6;margin-bottom:8px}
.price-num{font-size:38px;font-weight:900;color:#2d1840;line-height:1;margin-bottom:20px}
.price-num sup{font-size:18px;vertical-align:top;margin-top:6px;color:#d63384}
.price-list{list-style:none;text-align:left;margin-bottom:24px}
.price-list li{font-size:13px;color:#4a3060;padding:5px 0;line-height:1.5;border-bottom:1px dashed #ffeaf4}
.price-list li.off{color:#bbb}
.btn-price{display:block;padding:11px;border-radius:16px;font-weight:700;font-size:14px;text-align:center;transition:.2s}
.btn-price-free{background:#fff;border:2px solid #d63384;color:#d63384}
.btn-price-free:hover{background:#d63384;color:#fff}
.btn-price-vip{background:linear-gradient(135deg,#ff6bb5,#d63384);color:#fff;border:none;
  box-shadow:0 4px 16px rgba(214,51,132,.35)}
.btn-price-vip:hover{box-shadow:0 6px 22px rgba(214,51,132,.5);transform:translateY(-1px)}

/* CTA */
.cta-sec{position:relative;z-index:1;background:linear-gradient(135deg,#d63384,#9b59b6);padding:80px 24px;text-align:center;overflow:hidden}
.cta-sec::before{content:'💕';position:absolute;font-size:120px;opacity:.08;top:50%;left:10%;transform:translateY(-50%)}
.cta-sec::after{content:'💌';position:absolute;font-size:100px;opacity:.08;top:50%;right:10%;transform:translateY(-50%)}
.cta-sec h2{font-size:clamp(26px,5vw,40px);font-weight:800;color:#fff;margin-bottom:12px}
.cta-sec p{color:rgba(255,255,255,.8);font-size:16px;margin-bottom:32px}
.btn-cta{display:inline-flex;align-items:center;gap:8px;padding:16px 40px;border-radius:30px;
  background:#fff;color:#d63384;font-weight:800;font-size:17px;box-shadow:0 6px 24px rgba(0,0,0,.2);transition:.25s}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 10px 32px rgba(0,0,0,.3)}

/* Footer */
footer{position:relative;z-index:1;background:#2d1840;padding:28px 24px;text-align:center;color:rgba(255,255,255,.45);font-size:13px}

/* 移动适配 */
@media(max-width:640px){
  .hero{padding:40px 20px;flex-direction:column;gap:30px;min-height:auto}
  .hero-right{display:flex;width:100%}
  .phone{width:240px}
  .hero-stats{flex-direction:column;gap:0;width:100%;padding:16px}
  .stat{padding:10px 0}
  .stat-divider{height:1.5px;width:auto}
  .nav{padding:0 16px}
  .features,.pricing{padding:50px 20px}
  .pricing-grid{flex-direction:column;align-items:center}
  .price-card{width:100%;max-width:320px}
}