:root{--bg:#fff;--bg2:#f7f8fa;--text:#17191f;--muted:#5f6673;--line:#e5e7eb;--brand:#1a7a4a;--brand-dark:#105f39;--brand-soft:#ecf8f1;--warn:#9a5a00;--warn-soft:#fff8e6;--danger:#a22b2b;--danger-soft:#fff2f2;--mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Consolas,monospace;--sans:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--brand-dark)}
.topbar{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar .inner{max-width:960px;margin:auto;padding:13px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{font-weight:800;text-decoration:none;color:var(--brand);letter-spacing:-.02em}.brand span{color:var(--text)}
.nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.nav a{font-size:13px;text-decoration:none;color:var(--muted)}.nav a:hover{color:var(--brand)}
main{max-width:960px;margin:auto;padding:26px 22px 72px}
.crumb{font-size:12px;color:#8b93a1;margin:8px 0 22px}.crumb a{text-decoration:none;color:#6b7280}
.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:28px;align-items:start;padding:30px 0 38px;border-bottom:1px solid var(--line)}
.eyebrow{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--brand);font-weight:700;margin-bottom:12px}
h1{font-size:clamp(30px,5.4vw,48px);line-height:1.18;letter-spacing:-.035em;margin-bottom:16px}
.lead{font-size:17px;color:var(--muted);max-width:680px}
.hero-card{border:1px solid #cce9d8;background:linear-gradient(180deg,#f3fbf6,#fff);border-radius:16px;padding:20px}
.hero-card strong{display:block;margin-bottom:8px}.hero-card ul{margin-left:18px;font-size:13.5px;color:#405047}.hero-card li{margin:5px 0}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.button{display:inline-flex;align-items:center;justify-content:center;padding:11px 17px;border-radius:9px;font-weight:700;font-size:14px;text-decoration:none;border:1px solid var(--brand)}.button.primary{background:var(--brand);color:#fff}.button.primary:hover{background:var(--brand-dark)}.button.secondary{background:#fff;color:var(--brand-dark)}
section{padding:38px 0;border-bottom:1px solid var(--line)}
section:last-child{border-bottom:0}
h2{font-size:25px;line-height:1.35;letter-spacing:-.018em;margin-bottom:14px}h3{font-size:16px;line-height:1.45;margin-bottom:7px}
p{margin:10px 0;color:#303641}.muted{color:var(--muted)}
.direct-answer{background:var(--brand-soft);border:1px solid #bce4ce;border-left:5px solid var(--brand);border-radius:13px;padding:20px 22px}.direct-answer h2{font-size:20px;margin-bottom:6px}.direct-answer p{font-size:16px;margin:0;color:#204631}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{border:1px solid var(--line);border-radius:13px;padding:18px;background:#fff}.card.soft{background:var(--bg2)}.card p,.card li{font-size:14px;color:var(--muted)}.card ul{margin:8px 0 0 18px}.card li{margin:5px 0}
.checks{list-style:none;margin-top:15px}.checks li{position:relative;padding-left:27px;margin:10px 0;color:#343b45}.checks li:before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:800}
.crosses{list-style:none;margin-top:15px}.crosses li{position:relative;padding-left:27px;margin:10px 0;color:#343b45}.crosses li:before{content:"×";position:absolute;left:2px;top:0;color:var(--danger);font-weight:800}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}.step{counter-increment:step;border:1px solid var(--line);border-radius:13px;padding:17px}.step:before{content:"0" counter(step);font-family:var(--mono);font-size:11px;color:var(--brand);font-weight:700}.step h3{margin-top:9px}.step p{font-size:13px;color:var(--muted);margin:0}
.pricing{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;margin-top:18px}.price-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:#fff;position:relative}.price-card.featured{border-color:var(--brand);box-shadow:0 8px 24px rgba(26,122,74,.1)}.price-card .tag{display:inline-block;font-size:11px;color:var(--brand-dark);background:var(--brand-soft);border-radius:99px;padding:3px 9px;margin-bottom:11px}.price-card .name{font-size:14px;color:var(--muted)}.price-card .price{font-size:27px;font-family:var(--mono);font-weight:800;line-height:1.3;margin:4px 0 10px}.price-card p,.price-card li{font-size:13px;color:var(--muted)}.price-card ul{margin:8px 0 0 17px}
.boundary{background:var(--warn-soft);border:1px solid #f1d28a;border-radius:13px;padding:20px 22px}.boundary h2{font-size:20px;color:#734500}.boundary p,.boundary li{color:#6b4b17}.boundary ul{margin:9px 0 0 20px}
.evidence-list{display:grid;gap:10px;margin-top:16px}.evidence-link{display:block;border:1px solid var(--line);border-radius:11px;padding:14px 16px;text-decoration:none;background:#fff}.evidence-link:hover{border-color:#9ac9ad;background:#fbfffc}.evidence-link strong{display:block;color:var(--text)}.evidence-link span{display:block;font-size:12.5px;color:var(--muted);margin-top:3px}
.faq details{border:1px solid var(--line);border-radius:11px;padding:13px 16px;margin:9px 0;background:#fff}.faq summary{font-weight:700;cursor:pointer}.faq details p{font-size:14px;color:var(--muted);margin:8px 0 0}
.contact{display:grid;grid-template-columns:168px 1fr;gap:24px;align-items:center;background:#111d16;color:#fff;border-radius:17px;padding:24px}.contact img{width:168px;height:168px;object-fit:cover;border-radius:12px;background:#fff}.contact h2{color:#fff}.contact p{color:#c7d3ca}.wechat{display:inline-block;font-family:var(--mono);font-weight:800;color:#fff;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 12px;margin-top:8px}.contact .button{border-color:#fff}.contact .primary{background:#fff;color:#153d27}.contact .secondary{background:transparent;color:#fff}
.collection-hero{padding:36px 0}.service-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0 36px}.service-tile{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:15px;padding:21px;transition:.15s;background:#fff}.service-tile:hover{transform:translateY(-2px);border-color:#9ac9ad;box-shadow:0 8px 24px rgba(20,40,28,.06)}.service-tile .num{font-family:var(--mono);font-size:11px;color:var(--brand);font-weight:700}.service-tile h2{font-size:19px;margin:10px 0 5px}.service-tile p{font-size:13.5px;color:var(--muted);margin:0}.service-tile .more{font-size:12px;color:var(--brand);margin-top:13px;font-weight:700}
.note{font-size:12.5px;color:var(--muted);margin-top:12px}.update{font-size:12px;color:#8b93a1;margin-top:10px}
footer{max-width:960px;margin:auto;border-top:1px solid var(--line);padding:24px 22px 42px;font-size:12px;color:#8b93a1;line-height:1.8}footer a{color:#6b7280;text-decoration:none}
@media(max-width:760px){.topbar{position:static}.topbar .inner{align-items:center;flex-wrap:wrap;gap:8px 14px}.nav{order:3;width:100%;min-width:0;justify-content:flex-start;flex-wrap:nowrap;gap:16px;overflow-x:auto;padding:4px 0 2px;scrollbar-width:thin}.nav a{white-space:nowrap}.hero{grid-template-columns:1fr}.grid,.grid.three,.pricing,.service-list{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.contact{grid-template-columns:1fr;text-align:center}.contact img{margin:auto}h1{font-size:32px}.lead{font-size:15px}}
@media(max-width:440px){main{padding-left:16px;padding-right:16px}.topbar .inner{padding-left:16px;padding-right:16px}.steps{grid-template-columns:1fr}.contact{padding:18px}.contact img{width:180px;height:180px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.service-tile{transition:none}}