:root{
  --bg:#f7fbfa;
  --panel:#ffffff;
  --text:#12211f;
  --muted:#63706d;
  --brand:#0f766e;
  --brand-dark:#0b5f59;
  --brand-soft:#d9f3ef;
  --accent:#f59e0b;
  --danger:#ef4444;
  --line:#dfe8e5;
  --shadow:0 20px 55px rgba(9, 56, 50, .10);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#effaf8 0%,#f7fbfa 38%,#fff 100%);
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:20px;top:20px;width:auto;height:auto;background:#fff;padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);z-index:10}
.site-header{position:sticky;top:0;z-index:9;background:rgba(247,251,250,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(223,232,229,.75)}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
.brand-logo{width:40px;height:40px;border-radius:12px}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{padding:10px 14px;border-radius:999px;color:#364b47;font-size:15px}
.site-nav a:hover,.site-nav a.active{background:var(--brand-soft);color:var(--brand-dark)}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font-weight:700;color:var(--brand-dark)}
.hero{position:relative;overflow:hidden;padding:72px 0 42px}
.hero:before{content:"";position:absolute;inset:-220px -20% auto auto;width:720px;height:720px;border-radius:50%;background:radial-gradient(circle,rgba(15,118,110,.22),rgba(15,118,110,0) 65%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-dark);font-weight:800;background:rgba(217,243,239,.9);border:1px solid rgba(15,118,110,.13);border-radius:999px;padding:8px 14px;margin:0 0 18px}
.hero h1{font-size:clamp(38px,6vw,68px);line-height:1.05;margin:0 0 20px;letter-spacing:-.045em}
.hero .lead{font-size:20px;color:#3a514c;margin:0 0 26px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:13px 20px;border:1px solid transparent;font-weight:800;box-shadow:none;transition:.2s ease}
.button.primary{background:var(--brand);color:#fff;box-shadow:0 12px 30px rgba(15,118,110,.22)}
.button.primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.button.secondary{background:#fff;color:var(--brand-dark);border-color:var(--line)}
.button.secondary:hover{border-color:var(--brand);transform:translateY(-1px)}
.button.warning{background:#fff7ed;color:#9a3412;border-color:#fed7aa}
.button.disabled{opacity:.55;cursor:not-allowed;background:#f4f4f5;color:#71717a;border-color:#e4e4e7}
.hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;max-width:650px}
.meta-card{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:18px;padding:14px}
.meta-card strong{display:block;font-size:22px;color:var(--brand-dark)}
.meta-card span{font-size:13px;color:var(--muted)}
.phone-stage{position:relative;min-height:620px;display:grid;place-items:center}
.phone-stage:before{content:"";position:absolute;width:470px;height:470px;border-radius:50%;background:linear-gradient(135deg,rgba(15,118,110,.16),rgba(245,158,11,.16));filter:blur(8px)}
.phone{position:relative;width:min(360px,86vw);background:#101817;border-radius:42px;padding:14px;box-shadow:0 35px 80px rgba(8,30,27,.26);transform:rotate(1deg)}
.phone-screen{background:#f7fbfa;border-radius:30px;overflow:hidden;min-height:650px;border:1px solid #243b37}
.statusbar{height:34px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;font-size:12px;font-weight:700;color:#213631;background:#fff}
.app-top{background:linear-gradient(135deg,#0f766e,#14b8a6);color:#fff;padding:22px 20px 26px;border-radius:0 0 26px 26px}
.app-top h2{margin:8px 0 5px;font-size:26px;line-height:1.15}
.app-top p{margin:0;color:rgba(255,255,255,.86);font-size:13px}
.team-code{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.22);border-radius:18px;padding:12px;margin-top:16px}
.qr-mini{width:58px;height:58px;border-radius:12px;background:#fff;padding:7px;display:grid;grid-template-columns:repeat(4,1fr);gap:3px}
.qr-mini i{background:#173b36;border-radius:2px}.qr-mini i:nth-child(2n){background:#cdeee8}.qr-mini i:nth-child(5),.qr-mini i:nth-child(12){background:#f59e0b}
.app-body{padding:18px 16px 22px}
.range-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 10px 22px rgba(8,30,27,.05);padding:14px;margin-bottom:12px}
.range-map{height:172px;background:linear-gradient(135deg,#e2f7f3,#fef3c7);border-radius:18px;position:relative;overflow:hidden;margin-top:10px}
.range-map:before,.range-map:after{content:"";position:absolute;inset:auto 0 35px 0;height:3px;background:rgba(15,118,110,.13);transform:rotate(-12deg)}
.range-map:after{top:44px;bottom:auto;transform:rotate(22deg)}
.circle{position:absolute;width:118px;height:118px;border-radius:50%;border:3px solid rgba(15,118,110,.75);background:rgba(15,118,110,.13);left:86px;top:28px;display:grid;place-items:center;color:#0f766e;font-weight:900}
.pin{position:absolute;left:137px;top:76px;width:20px;height:20px;border-radius:50% 50% 50% 0;background:#ef4444;transform:rotate(-45deg);box-shadow:0 6px 14px rgba(239,68,68,.28)}
.pin:after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:#fff;left:6px;top:6px}
.member-list{display:grid;gap:10px;margin-top:10px}
.member{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 12px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand-dark);font-weight:900;flex:0 0 auto}
.member-main{display:flex;align-items:center;gap:10px}.member small{display:block;color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:4px;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;white-space:nowrap}
.badge.ok{background:#dcfce7;color:#166534}.badge.warn{background:#fff7ed;color:#9a3412}.badge.danger{background:#fee2e2;color:#b91c1c}.badge.gray{background:#f1f5f9;color:#475569}
.floating-alert{position:absolute;right:-16px;bottom:72px;background:#fff;border:1px solid #fecaca;border-radius:18px;padding:12px 14px;box-shadow:var(--shadow);width:238px}
.floating-alert strong{color:#b91c1c}.floating-alert p{font-size:13px;color:#475569;margin:4px 0 0}
.section{padding:74px 0}.section.tight{padding:48px 0}.section-title{max-width:780px;margin:0 auto 36px;text-align:center}
.section-title.left{text-align:left;margin-left:0}.section-title h2{font-size:clamp(30px,4vw,46px);line-height:1.12;margin:0 0 14px;letter-spacing:-.03em}.section-title p{color:var(--muted);font-size:18px;margin:0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 12px 30px rgba(9,56,50,.04)}
.card h3{font-size:21px;margin:14px 0 8px}.card p{color:var(--muted);margin:0}.feature-icon{width:48px;height:48px;border-radius:16px;background:var(--brand-soft);display:grid;place-items:center;font-size:24px}
.download-panel{display:grid;grid-template-columns:1fr 330px;gap:26px;align-items:center;background:linear-gradient(135deg,#0f766e,#134e4a);color:#fff;border-radius:32px;padding:34px;box-shadow:var(--shadow)}
.download-panel p{color:rgba(255,255,255,.82)}
.download-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.download-note{font-size:13px;color:rgba(255,255,255,.78);margin-top:14px}
.qr-card{background:#fff;color:var(--text);border-radius:24px;padding:18px;text-align:center;box-shadow:0 18px 42px rgba(0,0,0,.18)}.qr-card img{width:210px;margin:0 auto;border-radius:16px}.qr-card strong{display:block;margin-top:10px}.qr-card small{color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;counter-reset:step}.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.step:before{counter-increment:step;content:counter(step);width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:16px}.step h3{font-size:17px;margin:0 0 8px}.step p{font-size:14px;color:var(--muted);margin:0}
.notice{background:#fff7ed;border:1px solid #fed7aa;color:#7c2d12;border-radius:20px;padding:18px 20px;margin:18px 0}.notice strong{display:block;margin-bottom:4px}
.info-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.info-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.info-item strong{display:block;color:var(--brand-dark);font-size:22px}.info-item span{color:var(--muted);font-size:14px}
.screenshot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.shot{background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px;box-shadow:0 10px 24px rgba(9,56,50,.05)}.shot img{border-radius:18px;border:1px solid var(--line)}.shot p{font-weight:800;margin:12px 4px 4px}.shot small{display:block;color:var(--muted);margin:0 4px 4px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}.content-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:0 12px 30px rgba(9,56,50,.04)}.content-card h1{font-size:42px;line-height:1.1;margin:0 0 8px}.content-card h2{margin-top:34px}.content-card h3{margin-top:24px}.content-card p,.content-card li{color:#43524f}.content-card ul{padding-left:20px}.content-meta{color:var(--muted);margin-bottom:20px}.toc{position:sticky;top:92px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.toc a{display:block;color:var(--brand-dark);padding:8px 0}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:14px;vertical-align:top}.table th{background:#f0fdfa;color:#134e4a}.contact-list{display:grid;gap:14px}.contact-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.contact-item strong{display:block;color:var(--brand-dark)}
.page-hero{padding:56px 0 20px}.page-hero h1{font-size:clamp(34px,5vw,56px);line-height:1.05;margin:0 0 12px}.page-hero p{font-size:18px;color:var(--muted);max-width:760px;margin:0}.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:14px}.breadcrumb a{color:var(--brand-dark);font-weight:700}
.site-footer{background:#0b2825;color:#d8e8e4;margin-top:80px;padding:46px 0 22px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:28px}.site-footer a{display:block;color:#d8e8e4;margin:7px 0}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer p{color:#aebfba;margin:8px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.footer-brand{color:#fff}.footer-brand .brand-logo{box-shadow:0 8px 24px rgba(0,0,0,.22)}
@media (max-width:980px){.hero-grid,.download-panel,.two-col{grid-template-columns:1fr}.phone-stage{min-height:auto}.card-grid,.screenshot-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(3,1fr)}.info-strip{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.toc{position:static}.floating-alert{right:4px}}
@media (max-width:720px){.container{width:min(100% - 28px,1160px)}.nav-wrap{height:64px}.site-nav{display:none;position:absolute;left:14px;right:14px;top:70px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a{border-radius:14px}.nav-toggle{display:inline-flex}.hero{padding-top:42px}.hero-grid{gap:26px}.hero-meta,.card-grid,.screenshot-grid,.steps,.info-strip,.footer-grid{grid-template-columns:1fr}.download-panel{padding:24px;border-radius:24px}.section{padding:54px 0}.phone{width:min(340px,94vw)}.phone-screen{min-height:620px}.floating-alert{display:none}.content-card{padding:22px}.footer-bottom{display:block}.hero .lead{font-size:18px}}
.hero-preview-wrap {
  position: relative;
  width: 100%;
  min-height: 620px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-app-preview {
  width: min(440px, 88vw);
  max-height: 660px;
  object-fit: contain;
  display: block;
  transform: translateY(24px);
  filter: drop-shadow(0 28px 50px rgba(15, 118, 110, 0.18));
}