/* 浇个盆友 PotPal — 官网样式
   设计 token 镜像 design-system.md（PP enum）
   家族同款骨架（对齐 FocusFlow flow.daylumen.com），替换为植物温室色系 */

:root {
  /* surfaces — 对应 PP.paper / PP.surface */
  --bg-app:      #F6F4EC;  /* PP.paper 奶油纸 */
  --surface:     #FFFFFF;  /* PP.surface 卡片白 */
  --surface-alt: #EFEBDD;  /* PP.paper2 次级底 */
  --surface3:    #E6ECDD;  /* PP.surface3 */

  /* text — 对应 PP.ink 系列 */
  --ink:         #232A20;  /* PP.ink 主文本 深橄榄 */
  --ink2:        #4F5A45;  /* PP.ink2 次级 */
  --ink3:        #7C8870;  /* PP.ink3 辅助 */
  --ink4:        #AAB39C;  /* PP.ink4 极弱 */

  /* brand — 叶绿 */
  --brand:       #3F9E4F;  /* PP.brand */
  --brand-deep:  #2E7D3C;  /* PP.brandDeep */
  --brand-soft:  rgba(63,158,79,0.13);  /* PP.brandSoft */

  /* clay — 陶土暖 */
  --clay:        #C56A3E;  /* PP.clay */
  --clay-soft:   rgba(197,106,62,0.13); /* PP.claySoft */

  /* water — 水蓝 */
  --water:       #2E90C2;  /* PP.water */
  --water-soft:  rgba(46,144,194,0.13); /* PP.waterSoft */

  /* lines */
  --border-soft: rgba(35,42,32,0.09);   /* PP.line */

  /* radius */
  --r-card: 24px;
  --r-pill: 100px;
  --r-md:   12px;

  /* shadow */
  --shadow-card:   0 4px 16px -6px rgba(35,42,32,0.10);
  --shadow-lift:   0 24px 56px -18px rgba(35,42,32,0.22);
  --shadow-brand:  0 8px 22px -6px rgba(63,158,79,0.30);

  /* layout */
  --maxw: 1160px;

  /* typography — Noto Serif SC for display, system round for body */
  --font-display: "Noto Serif SC","Source Han Serif SC","Georgia",serif;
  --font-body:    -apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Helvetica Neue",sans-serif;
}

/* ===================================================================
   BASE
   =================================================================== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg-app);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--brand-soft); color: var(--brand-deep); }

/* ===================================================================
   LAYOUT
   =================================================================== */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; width: 100%; }
.section    { padding: 96px 0; }

/* ===================================================================
   TYPE HELPERS
   =================================================================== */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.18;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--brand-soft); color: var(--brand-deep);
  font-size: 12.5px; font-weight: 600; padding: 6px 14px;
  border-radius: var(--r-pill); letter-spacing: 0.02em;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand); display: inline-block; }
.eyebrow.on-dark { background: rgba(255,255,255,0.18); color: #fff; }
.eyebrow.on-dark .dot { background: #fff; }
.lead { color: var(--ink2); font-size: 18px; line-height: 1.7; }

/* ===================================================================
   CARD
   =================================================================== */
.card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
}

/* ===================================================================
   BUTTONS
   =================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-body); font-weight: 600; font-size: 15px;
  border: none; border-radius: var(--r-pill); padding: 14px 26px; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--brand); color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px -4px rgba(63,158,79,0.42); }
.btn-ghost {
  background: var(--surface); color: var(--ink);
  border: 1.5px solid var(--border-soft);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand-deep); }

/* App Store badge */
.appstore {
  display: inline-flex; align-items: center; gap: 11px;
  background: #1A2018; color: #fff; border-radius: 15px; padding: 11px 22px;
  box-shadow: 0 8px 22px -6px rgba(26,32,24,0.30);
  transition: transform .15s ease;
}
.appstore:hover { transform: translateY(-2px); }
.appstore svg { width: 26px; height: 26px; flex: none; }
.appstore .at small  { display: block; font-size: 10px; opacity: .72; line-height: 1.1; font-weight: 500; }
.appstore .at b      { display: block; font-size: 17px; font-weight: 600; line-height: 1.25; }
.appstore.light      { background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.30); }

/* ===================================================================
   GREEN BAND (对应 FocusFlow band-accent，这里改为植物深绿)
   =================================================================== */
.band-green {
  background: linear-gradient(140deg, #2E7D3C 0%, #1B5929 55%, #14421E 100%);
  color: #fff;
  position: relative; overflow: hidden;
}
.band-green .blob {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none;
}

/* ===================================================================
   STATUS PILL（对应 design-system StatusPill）
   =================================================================== */
.pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 12px; border-radius: var(--r-pill);
  font-size: 13px; font-weight: 600;
}
.pill-water { background: var(--water-soft); color: var(--water); }
.pill-brand { background: var(--brand-soft); color: var(--brand-deep); }
.pill-clay  { background: var(--clay-soft);  color: var(--clay); }

/* ===================================================================
   NAV
   =================================================================== */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(246,244,236,0.88);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.site-nav .container {
  display: flex; align-items: center;
  justify-content: space-between; height: 68px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 19px;
  color: var(--ink);
}
.brand .mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(145deg, #3F9E4F, #2E7D3C);
  display: grid; place-items: center;
  box-shadow: 0 4px 12px -3px rgba(63,158,79,0.45);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 14.5px; font-weight: 500; color: var(--ink2);
  transition: color .15s ease;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.nav-cta {
  background: var(--brand); color: #fff;
  padding: 9px 20px; border-radius: var(--r-pill);
  font-weight: 600; display: inline-flex; align-items: center; gap: 7px;
  box-shadow: 0 4px 14px -4px rgba(63,158,79,0.50);
  transition: transform .15s ease;
}
.nav-links a.nav-cta:hover { color: #fff; transform: translateY(-1px); }

/* ===================================================================
   HERO
   =================================================================== */
.hero {
  position: relative; overflow: hidden;
  padding: 80px 0 96px;
}
.hero .hero-bg-leaf {
  position: absolute; right: -80px; top: -60px;
  width: 680px; height: 680px; opacity: 0.04; pointer-events: none;
  transform: rotate(15deg);
}
.hero .container {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 56px; align-items: center;
}
.hero-copy { max-width: 540px; }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700; font-size: 56px; line-height: 1.14;
  letter-spacing: -0.015em; margin: 20px 0 0; color: var(--ink);
}
.hero h1 .acc { color: var(--brand); }
.hero-sub {
  margin-top: 20px; font-size: 18px; line-height: 1.7;
  color: var(--ink2); max-width: 500px;
}
.hero-cta {
  display: flex; align-items: center; gap: 14px;
  margin-top: 32px; flex-wrap: wrap;
}
.hero-proof {
  display: flex; align-items: center; gap: 14px;
  margin-top: 24px; flex-wrap: wrap;
}
.proof-item {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13.5px; font-weight: 500; color: var(--ink3);
}
.proof-item svg { width: 15px; height: 15px; color: var(--brand); flex: none; }

/* Hero visual — 笑脸盆 */
.hero-visual {
  display: flex; justify-content: center; align-items: center;
  position: relative;
}
.pot-hero {
  width: 320px; height: 320px;
  filter: drop-shadow(0 28px 48px rgba(35,42,32,0.16));
  animation: pot-float 5s ease-in-out infinite;
}
@keyframes pot-float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
/* 悬浮小卡 */
.float-card {
  position: absolute; display: inline-flex; align-items: center; gap: 10px;
  background: var(--surface); border-radius: 18px; padding: 11px 15px;
  box-shadow: 0 12px 28px -8px rgba(35,42,32,0.16);
  border: 1px solid var(--border-soft);
}
.float-card small { display: block; font-size: 11px; font-weight: 600; color: var(--ink3); }
.float-card b     { display: block; font-size: 13px; font-weight: 600; color: var(--ink); }
.float-a { top: 10%; left: -12%; transform: rotate(-3deg); }
.float-b { bottom: 10%; right: -8%; transform: rotate(2deg); }

/* ===================================================================
   FEATURES BENTO
   =================================================================== */
.feat-header { text-align: center; max-width: 600px; margin: 0 auto 64px; }
.feat-header h2 { font-size: 42px; margin-top: 14px; }
.feat-header p  { margin-top: 14px; }

.feat-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feat-card {
  padding: 28px 26px;
  display: flex; flex-direction: column; gap: 12px;
}
.feat-card--wide { grid-column: span 2; }
.feat-card--tall { grid-row: span 2; }

.feat-icon {
  width: 44px; height: 44px; border-radius: 14px;
  display: grid; place-items: center; flex: none;
}
.feat-icon--green  { background: var(--brand-soft);  color: var(--brand); }
.feat-icon--clay   { background: var(--clay-soft);   color: var(--clay); }
.feat-icon--water  { background: var(--water-soft);  color: var(--water); }
.feat-icon--cream  { background: var(--surface3);    color: var(--ink2); }

.feat-card h3 { font-size: 17px; font-weight: 600; color: var(--ink); }
.feat-card p  { font-size: 14.5px; line-height: 1.65; color: var(--ink2); }

/* ===================================================================
   SCIENCE SECTION（为什么浇水总浇死）
   =================================================================== */
.science { background: var(--surface-alt); }
.science-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: center;
}
.science-copy h2  { font-size: 38px; margin-top: 14px; }
.science-copy p   { margin-top: 16px; font-size: 15.5px; line-height: 1.75; color: var(--ink2); }
.science-copy p + p { margin-top: 12px; }
.science-accent {
  font-size: 15px; font-weight: 600; color: var(--brand-deep);
  background: var(--brand-soft); padding: 12px 16px;
  border-radius: 12px; border-left: 3px solid var(--brand);
  margin-top: 20px; line-height: 1.6;
}

.science-visual {
  display: flex; flex-direction: column; gap: 14px;
}
.sci-card {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 18px 20px;
}
.sci-num {
  font-family: var(--font-display); font-size: 28px; font-weight: 700;
  color: var(--brand); line-height: 1; flex: none; min-width: 32px;
}
.sci-card h4 { font-size: 15px; font-weight: 600; color: var(--ink); }
.sci-card p  { font-size: 13.5px; color: var(--ink3); margin-top: 3px; line-height: 1.55; }

/* ===================================================================
   PRIVACY BAND
   =================================================================== */
.privacy {
  text-align: center; padding: 80px 0;
}
.privacy-inner { max-width: 640px; margin: 0 auto; }
.privacy-inner h2 { font-size: 36px; margin-top: 14px; }
.privacy-inner p  { margin-top: 14px; color: rgba(255,255,255,0.85); font-size: 16px; line-height: 1.7; }
.privacy-chips {
  display: flex; gap: 10px; flex-wrap: wrap;
  justify-content: center; margin-top: 28px;
}
.privacy-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.28);
  color: #fff; padding: 8px 16px; border-radius: var(--r-pill);
  font-size: 13.5px; font-weight: 500;
}

/* ===================================================================
   FINAL CTA
   =================================================================== */
.final-cta {
  text-align: center; padding: 110px 0;
}
.final-cta .container {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center;
}
.final-cta .blob-1 { width: 500px; height: 500px; background: rgba(255,255,255,0.09); top: -150px; left: -100px; }
.final-cta .blob-2 { width: 460px; height: 460px; background: rgba(20,66,30,0.50); bottom: -150px; right: -100px; }
.final-cta h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 48px; line-height: 1.18; letter-spacing: -0.015em;
}
.final-cta .sub { margin-top: 16px; font-size: 17px; color: rgba(255,255,255,0.82); max-width: 560px; line-height: 1.7; }
.final-cta .cta-row { margin-top: 32px; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.final-cta .reassure {
  display: flex; gap: 20px; margin-top: 24px; flex-wrap: wrap;
  justify-content: center; color: rgba(255,255,255,0.72);
  font-size: 13.5px; font-weight: 500;
}
.final-cta .reassure span { display: inline-flex; align-items: center; gap: 6px; }

/* ===================================================================
   FOOTER
   =================================================================== */
.site-footer { background: #0E1A0E; color: #fff; padding: 60px 0 36px; }
.footer-top { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer-brand { max-width: 300px; }
.footer-brand .brand { color: #fff; }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.65; color: #8FA882; }
.footer-badge {
  display: inline-flex; align-items: center; gap: 9px; margin-top: 16px;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14);
  border-radius: 11px; padding: 9px 15px; font-size: 13.5px; font-weight: 600;
  transition: background .15s ease;
}
.footer-badge:hover { background: rgba(255,255,255,0.12); }
.footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-size: 12.5px; font-weight: 700; color: #5E7558; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.footer-col a  { display: block; font-size: 14px; color: #8FA882; margin-bottom: 10px; transition: color .15s ease; }
.footer-col a:hover { color: #fff; }
.footer-divider { height: 1px; background: rgba(255,255,255,0.08); margin: 36px 0 22px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom .cp   { font-size: 12.5px; color: #4F6049; }
.footer-bottom .made { font-size: 12.5px; color: #7A9474; }
.footer-social a {
  display: inline-flex; width: 34px; height: 34px; border-radius: 50%;
  background: rgba(255,255,255,0.07); place-items: center; color: #8FA882;
  transition: background .15s ease;
}
.footer-social a:hover { background: rgba(255,255,255,0.14); }

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero-copy { max-width: none; order: 0; }
  .hero-visual { order: 1; }
  .hero h1 { font-size: 44px; }
  .feat-bento { grid-template-columns: 1fr 1fr; }
  .feat-card--wide { grid-column: span 2; }
  .science-inner { grid-template-columns: 1fr; gap: 40px; }
  .nav-links .hide-sm { display: none; }
  .nav-links { gap: 16px; }
}
@media (max-width: 640px) {
  .section { padding: 72px 0; }
  .container { padding: 0 20px; }
  .hero h1 { font-size: 36px; }
  .hero-sub, .lead { font-size: 16px; }
  .feat-bento { grid-template-columns: 1fr; }
  .feat-card--wide { grid-column: span 1; }
  .feat-card--tall { grid-row: span 1; }
  .final-cta h2 { font-size: 34px; }
  .science-inner { gap: 28px; }
  .float-card { display: none; }
  .footer-links { gap: 32px; }
}