:root {
  --green: #1bb85a;
  --green-d: #129448;
  --ink: #1b2a22;
  --muted: #6d8578;
  --bg: #f4fbf6;
  --card: #ffffff;
  --line: #e4f4ea;
  --shadow: 0 14px 36px rgba(24, 110, 58, 0.08);
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font-family: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(var(--wrap), calc(100% - 40px)); margin: 0 auto; }

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(22, 168, 78, 0.08);
}
.header-inner {
  width: min(var(--wrap), calc(100% - 40px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 180px; }
.brand img { width: 48px; height: 48px; border-radius: 14px; object-fit: cover; box-shadow: 0 6px 14px rgba(20, 140, 60, 0.18); }
.brand strong { display: block; color: var(--green-d); font-size: 18px; letter-spacing: 0.5px; line-height: 1.15; }
.brand em { display: block; margin-top: 2px; font-style: normal; color: var(--muted); font-size: 12px; }
.nav { display: flex; align-items: center; justify-content: center; gap: 28px; flex: 1; }
.nav a { position: relative; color: #5f7468; font-size: 15px; font-weight: 700; padding: 8px 0; }
.nav a.on { color: var(--green-d); }
.nav a.on::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--green);
}
.btn {
  border: 0;
  color: #fff;
  background: linear-gradient(180deg, #3ad56c, #16b150);
  border-radius: 999px;
  padding: 9px 18px;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 8px 16px rgba(22, 177, 80, 0.28);
}
.btn:active, .cta-btn:active, .phone-btn:active { transform: scale(0.98); }
.btn:focus-visible, .cta-btn:focus-visible, .phone-btn:focus-visible { outline: 3px solid rgba(27, 184, 90, 0.35); outline-offset: 2px; }

.hero { position: relative; min-height: 700px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.28) 38%, rgba(255, 255, 255, 0.05) 62%, rgba(255, 255, 255, 0) 78%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, rgba(244, 251, 246, 0) 28%, rgba(244, 251, 246, 0.2) 70%, var(--bg) 100%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  min-height: 700px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  align-items: center;
  gap: 12px;
  padding: 28px 0 36px;
}
.hero h1 { margin: 0; }
.line1 {
  display: block;
  color: #14c45b;
  font-size: clamp(46px, 5.8vw, 80px);
  font-weight: 900;
  letter-spacing: 2px;
  line-height: 1.05;
  text-shadow:
    -2px -2px 0 #fff, 2px -2px 0 #fff, -2px 2px 0 #fff, 2px 2px 0 #fff,
    0 2px 0 #fff, 0 -2px 0 #fff, 2px 0 0 #fff, -2px 0 0 #fff,
    0 8px 0 rgba(18, 130, 55, 0.08);
}
.line2 {
  display: block;
  margin-top: 6px;
  color: #1a2b22;
  font-size: clamp(30px, 3.8vw, 50px);
  font-weight: 900;
  letter-spacing: 1px;
  line-height: 1.15;
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.85);
}
.pill {
  display: inline-flex;
  margin: 18px 0 0;
  padding: 8px 16px;
  border-radius: 999px;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  background: linear-gradient(90deg, #18b955, #34d56f);
  box-shadow: 0 8px 18px rgba(22, 170, 75, 0.28);
}
.points {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  max-width: 640px;
}
.points li {
  background: rgba(255, 255, 255, 0.94);
  border-radius: 16px;
  padding: 12px 8px 11px;
  text-align: center;
  box-shadow: 0 10px 22px rgba(20, 90, 45, 0.08);
}
.points svg { width: 26px; height: 26px; color: var(--green); }
.points b { display: block; margin-top: 4px; font-size: 13px; color: #214433; }
.points span { display: block; margin-top: 2px; font-size: 12px; color: var(--muted); }
.hero-panda { align-self: end; }
.hero-panda img {
  width: min(480px, 100%);
  margin-left: auto;
  filter: drop-shadow(0 18px 22px rgba(18, 70, 30, 0.16));
  animation: floaty 4.8s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.section { padding: 8px 0 26px; }
.panel {
  background: linear-gradient(180deg, #ffffff 0%, #f7fdf9 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.ai-panel {
  display: grid;
  grid-template-columns: 300px 1fr 230px;
  gap: 18px;
  align-items: center;
  padding: 28px 28px 24px;
}
.ai-copy h2, .center-title h2, .cta-copy h2, .faq h2 {
  margin: 0;
  color: var(--green-d);
  font-size: 34px;
  font-weight: 900;
  letter-spacing: 1px;
}
.ai-copy .tagline {
  margin: 6px 0 0;
  color: #24382c;
  font-size: 22px;
  font-weight: 900;
}
.checks { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; }
.checks li { display: flex; align-items: center; gap: 10px; font-weight: 800; color: #2a4334; }
.tick {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #e7f9ee;
  color: var(--green-d);
  flex: 0 0 auto;
}
.tick svg { width: 14px; height: 14px; }

.phone {
  position: relative;
  width: 270px;
  margin: 8px auto;
  padding: 10px;
  border-radius: 38px;
  background: #1b1b1b;
  box-shadow: 0 22px 40px rgba(16, 60, 30, 0.18);
  transform: rotate(-7deg);
}
.phone::before, .phone::after {
  content: "";
  position: absolute;
  left: -3px;
  width: 3px;
  background: #2a2a2a;
  border-radius: 2px 0 0 2px;
}
.phone::before { top: 88px; height: 28px; }
.phone::after { top: 128px; height: 48px; }
.phone-screen {
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(180deg, #e7f7ff 0%, #eefbe9 46%, #d9f8e2 100%);
}
.status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px 0;
  font-size: 11px;
  font-weight: 800;
  color: #173024;
}
.sig { display: flex; gap: 3px; align-items: flex-end; height: 10px; }
.sig i { display: block; width: 3px; background: #173024; border-radius: 1px; }
.sig i:nth-child(1) { height: 4px; }
.sig i:nth-child(2) { height: 6px; }
.sig i:nth-child(3) { height: 8px; }
.sig i:nth-child(4) { height: 10px; }
.appbar { display: flex; align-items: center; gap: 8px; padding: 8px 12px 0; }
.appbar img { width: 28px; height: 28px; border-radius: 8px; object-fit: cover; }
.appbar b { display: block; color: var(--green-d); font-size: 13px; line-height: 1.1; }
.appbar small { display: block; color: #6e867a; font-size: 10px; }
.phone-hero { padding: 0 16px; }
.phone-hero img { width: 86%; margin: 0 auto; }
.phone-feats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  padding: 4px 8px 8px;
  text-align: center;
}
.phone-feats span { display: block; color: var(--green); }
.phone-feats svg { width: 18px; height: 18px; }
.phone-feats b { display: block; margin-top: 2px; font-size: 10px; font-weight: 800; color: #3c5c49; line-height: 1.25; }
.phone-btn {
  display: block;
  width: calc(100% - 24px);
  margin: 2px 12px 14px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #3ad56c, #14ad4e);
  color: #fff;
  font-weight: 900;
  font-size: 15px;
  padding: 9px 0;
  box-shadow: 0 8px 14px rgba(20, 160, 70, 0.25);
}

.scan { position: relative; width: 210px; height: 230px; margin: 0 auto; }
.orb {
  width: 196px;
  height: 196px;
  border-radius: 50%;
  margin: 0 auto;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 38% 32%, #d8ffd8, #5ed888 42%, #1eae55 78%);
  box-shadow: inset 0 0 0 8px rgba(255, 255, 255, 0.28), 0 14px 28px rgba(24, 150, 70, 0.22);
  position: relative;
}
.orb img { width: 68%; }
.corners { position: absolute; inset: 16%; }
.corners i {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 3px solid #fff;
}
.corners i:nth-child(1) { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.corners i:nth-child(2) { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.corners i:nth-child(3) { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.corners i:nth-child(4) { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.scan-tip {
  position: absolute;
  right: 0;
  bottom: 8px;
  background: #fff;
  color: #3e5c4a;
  font-size: 12px;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 10px;
  box-shadow: 0 6px 14px rgba(20, 60, 30, 0.1);
}

.cat-panel { margin-top: 22px; padding: 28px 22px 24px; }
.center-title { text-align: center; }
.center-title p, .faq .sub { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.cats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
}
.cats li {
  background: #f7fbf8;
  border-radius: 18px;
  padding: 12px 8px 10px;
  text-align: center;
  border: 1px solid #eef6f0;
}
.cats img { width: 100%; height: 104px; object-fit: contain; }
.cats b { display: block; margin-top: 4px; color: #2c4a39; font-size: 15px; }

.flow { padding-top: 18px; }
.steps {
  list-style: none;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  margin: 26px 0 0;
  padding: 0;
}
.steps li { width: 150px; text-align: center; }
.steps .go {
  width: 28px;
  padding-top: 26px;
  color: #9edab4;
  font-size: 22px;
  font-weight: 900;
}
.bubble {
  width: 78px;
  height: 78px;
  margin: 0 auto 10px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 10px 20px rgba(20, 110, 50, 0.06);
  display: grid;
  place-items: center;
  position: relative;
  color: var(--green);
}
.bubble svg { width: 30px; height: 30px; }
.bubble em {
  position: absolute;
  top: -4px;
  left: -4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-style: normal;
  font-size: 12px;
  font-weight: 800;
  display: grid;
  place-items: center;
}
.steps b { display: block; color: #214433; font-size: 15px; }
.steps span { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }

.cta-wrap { padding-top: 8px; }
.cta {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 200px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 28px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 12% 80%, rgba(80, 200, 110, 0.18), transparent 28%),
    linear-gradient(100deg, #edfff3 0%, #ffffff 46%, #e5fbe9 100%);
  border: 1px solid #ddf5e5;
  box-shadow: var(--shadow);
}
.cta .earth { width: 168px; margin: 0 auto; filter: drop-shadow(0 10px 12px rgba(20, 80, 40, 0.12)); }
.cta-copy h2 { font-size: 32px; }
.cta-copy p { margin: 4px 0 0; color: #149447; font-size: 26px; font-weight: 900; }
.cta-btn {
  border: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  background: linear-gradient(180deg, #43dc74, #14b050);
  border-radius: 999px;
  padding: 14px 26px 14px 14px;
  box-shadow: 0 14px 26px rgba(20, 170, 75, 0.32);
}
.cta-ico {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.2);
}
.cta-ico svg { width: 26px; height: 26px; }
.cta-btn strong { display: block; font-size: 22px; letter-spacing: 1px; text-align: left; }
.cta-btn small { display: block; margin-top: 2px; font-size: 12px; font-weight: 700; opacity: 0.95; text-align: left; }
.leaf { position: absolute; color: #7dce74; opacity: 0.85; pointer-events: none; }
.leaf-a { width: 70px; left: -8px; bottom: -16px; transform: rotate(-20deg); }
.leaf-b { width: 54px; right: 220px; top: -12px; transform: rotate(30deg); }

.faq { margin: 22px auto 8px; padding: 26px 26px 10px; }
.faq h2, .faq .sub { text-align: center; }
.faq-list { margin-top: 16px; }
.faq details {
  border-top: 1px solid var(--line);
  padding: 12px 4px;
}
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; color: #214433; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--green); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 8px 0 4px; color: #5d7468; font-size: 14px; }

.trust {
  width: min(var(--wrap), calc(100% - 40px));
  margin: 8px auto 0;
  padding: 18px 0 36px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.trust article { text-align: center; }
.trust .mark {
  width: 42px;
  height: 42px;
  margin: 0 auto 8px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--green);
  background: #e8f9ee;
}
.trust svg { width: 22px; height: 22px; }
.trust b { display: block; color: #214433; }
.trust span { display: block; margin-top: 2px; color: var(--muted); font-size: 13px; }

@media (max-width: 980px) {
  .hero, .hero-grid { min-height: 0; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 18px; }
  .hero-panda { order: -1; }
  .hero-panda img { width: min(380px, 78%); margin: 0 auto; }
  .points { max-width: none; }
  .ai-panel { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .checks { justify-items: center; }
  .checks li { justify-content: center; }
  .phone { transform: none; }
  .cats { grid-template-columns: repeat(3, 1fr); }
  .cta { grid-template-columns: 1fr; justify-items: center; text-align: center; padding: 22px 16px; }
  .cta-copy p { font-size: 22px; }
  .leaf-b { display: none; }
}
@media (max-width: 760px) {
  .wrap, .header-inner, .trust { width: min(100% - 28px, var(--wrap)); }
  .header-inner { flex-wrap: nowrap; justify-content: space-between; gap: 10px; padding: 10px 0; }
  .brand { min-width: 0; }
  .nav { display: none; }
  .header .btn { margin-left: auto; flex-shrink: 0; }
  .points { grid-template-columns: 1fr 1fr; }
  .steps { flex-wrap: wrap; gap: 16px 8px; }
  .steps .go { display: none; }
  .steps li { width: calc(50% - 8px); }
  .ai-copy h2, .center-title h2, .faq h2, .cta-copy h2 { font-size: 28px; }
  .line1 { letter-spacing: 0; }
  .trust { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .trust .mark { width: 36px; height: 36px; margin-bottom: 6px; }
  .trust svg { width: 18px; height: 18px; }
  .trust b { font-size: 13px; }
  .trust span { font-size: 11px; line-height: 1.35; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-panda img { animation: none; }
  html { scroll-behavior: auto; }
}