/* 妙手ERP 静态站样式 —— 主色 emerald，中性灰，移动端优先 */
:root{
  --em-50:#ecfdf5;--em-100:#d1fae5;--em-200:#a7f3d0;--em-400:#34d399;
  --em-500:#10b981;--em-600:#059669;--em-700:#047857;
  --teal-50:#f0fdfa;--teal-200:#99f6e4;
  --g-50:#f9fafb;--g-100:#f3f4f6;--g-400:#9ca3af;--g-500:#6b7280;
  --g-600:#4b5563;--g-700:#374151;--g-900:#111827;
  --radius-lg:.5rem;--radius-xl:.75rem;--radius-2xl:1rem;--radius-3xl:1.5rem;
  --wrap:1152px;
  --shadow-xl:0 20px 35px -12px rgba(17,24,39,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--g-600);font-weight:400;line-height:1.7;
  font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:#fff;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--em-600);text-decoration:none}
a:hover{color:var(--em-700)}
h1,h2,h3,h4{color:var(--g-900);font-weight:700;line-height:1.25;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.sec{padding:96px 0;background:#fff}
.sec.alt{background:var(--g-50)}
.sec-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-head.left{text-align:left;margin-left:0}
.sec-head h2{font-size:clamp(1.75rem,3.2vw,2.25rem)}
.sec-head p{margin-top:14px;font-size:1.125rem;color:var(--g-600)}
.tag{display:inline-flex;align-items:center;gap:8px;background:var(--em-100);color:var(--em-700);
  border-radius:9999px;padding:6px 14px;font-size:.875rem;font-weight:600}
.mono{font-variant-numeric:tabular-nums}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--em-600);color:#fff;
  border-radius:var(--radius-2xl);padding:16px 32px;font-weight:700;font-size:1.0625rem;border:0;cursor:pointer;
  transition:background .2s,transform .2s,box-shadow .2s;box-shadow:0 12px 28px -12px rgba(5,150,105,.75)}
.btn:hover{background:var(--em-700);color:#fff;transform:translateY(-1px)}
.btn.sm{padding:10px 18px;font-size:.9375rem;border-radius:var(--radius-xl);box-shadow:none}
.btn.ghost{background:transparent;color:var(--em-700);border:2px solid var(--em-200);box-shadow:none}
.btn.ghost:hover{background:var(--em-50);border-color:var(--em-400);color:var(--em-700)}
.btn svg{width:20px;height:20px;flex:none}
.animate-glow{animation:glow 3.4s ease-in-out infinite}
@keyframes glow{0%,100%{box-shadow:0 12px 28px -12px rgba(5,150,105,.75)}
  50%{box-shadow:0 18px 44px -10px rgba(16,185,129,.55)}}

/* Header */
.site-header{position:fixed;inset:0 0 auto;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--g-100)}
.nav{max-width:var(--wrap);margin:0 auto;padding:0 16px;height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--g-900);font-weight:700;font-size:1.125rem;flex:none}
.brand img{width:36px;height:36px;border-radius:10px}
.nav-main{display:none;align-items:center;gap:6px;margin-left:auto}
.nav-link{padding:8px 14px;border-radius:var(--radius-lg);color:var(--g-600);font-size:.9375rem;font-weight:500}
.nav-link:hover{color:var(--g-900);background:var(--g-100)}
.nav-link.active{background:var(--em-50);color:var(--em-600);font-weight:600}
.nav-cta{display:none}
.burger{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;width:42px;height:42px;
  border:1px solid var(--g-100);border-radius:var(--radius-lg);background:#fff;cursor:pointer}
.burger svg{width:22px;height:22px;stroke:var(--g-900)}
.m-menu{display:none;border-top:1px solid var(--g-100);background:#fff}
.m-menu.open{display:block}
.m-menu a{display:block;padding:14px 20px;border-bottom:1px solid var(--g-50);color:var(--g-700);font-weight:500}
.m-menu a:hover{background:var(--em-50);color:var(--em-700)}

/* Hero */
.hero{position:relative;overflow:hidden;padding:112px 0 80px;
  background:linear-gradient(160deg,#fff 0%,var(--em-50) 45%,var(--teal-50) 100%)}
.hero::before,.hero::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  filter:blur(64px);opacity:.3;pointer-events:none}
.hero::before{background:var(--em-400);top:-160px;right:-120px}
.hero::after{background:var(--teal-200);bottom:-200px;left:-140px}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.5rem,7vw,4.5rem);letter-spacing:-.02em;margin:22px 0 0}
.text-gradient{background:linear-gradient(90deg,var(--em-600),#0d9488 60%,#0284c7);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{margin-top:22px;font-size:1.25rem;max-width:32rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.trust-line{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;font-size:.875rem;color:var(--g-500)}
.trust-line span{display:inline-flex;align-items:center;gap:6px}
.trust-line svg{width:16px;height:16px;stroke:var(--em-600)}
.hero-visual{position:relative}
.mock{background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-3xl);box-shadow:var(--shadow-xl);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--g-50);border-bottom:1px solid var(--g-100)}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#e5e7eb}
.mock-bar i:first-child{background:#fca5a5}.mock-bar i:nth-child(2){background:#fcd34d}.mock-bar i:nth-child(3){background:#86efac}
.mock-bar span{margin-left:8px;font-size:.8125rem;color:var(--g-500)}
.mock-body{padding:18px;background:linear-gradient(180deg,#fff,var(--g-50))}
.kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi div{background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-xl);padding:12px}
.kpi b{display:block;font-size:1.25rem;color:var(--g-900)}
.kpi small{color:var(--g-500);font-size:.75rem}
.mock-table{margin-top:14px;background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-xl);overflow:hidden}
.mock-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;padding:10px 14px;
  border-bottom:1px solid var(--g-50);font-size:.8125rem}
.mock-row:last-child{border-bottom:0}
.mock-row b{display:block;color:var(--g-900);font-weight:600}
.mock-row small{color:var(--g-500);font-size:.75rem}
.chip{font-size:.6875rem;padding:2px 8px;border-radius:9999px;background:var(--g-100);color:var(--g-600);white-space:nowrap}
.chip.ok{background:var(--em-100);color:var(--em-700)}
.chip.warn{background:#fef3c7;color:#b45309}

/* 信任条 */
.stats{background:var(--g-900);color:#fff;padding:48px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.stat svg{width:32px;height:32px;stroke:var(--em-400);margin:0 auto 10px}
.stat b{display:block;font-size:clamp(1.5rem,3.4vw,2.25rem);color:#fff;line-height:1.2}
.stat span{color:var(--g-400);font-size:.875rem}

/* 功能卡 */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:1fr}
.g3{grid-template-columns:1fr}
.g4{grid-template-columns:1fr}
.card{background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-3xl);padding:32px;
  transition:border-color .25s,box-shadow .25s,transform .25s}
.card:hover{border-color:var(--em-200);box-shadow:var(--shadow-xl);transform:translateY(-2px)}
.ico{width:64px;height:64px;border-radius:var(--radius-2xl);display:grid;place-items:center;margin-bottom:20px;
  transition:transform .25s}
.ico svg{width:30px;height:30px;stroke:#fff}
.card:hover .ico{transform:scale(1.1)}
.grad-1{background:linear-gradient(135deg,#a855f7,#ec4899)}
.grad-2{background:linear-gradient(135deg,#06b6d4,#3b82f6)}
.grad-3{background:linear-gradient(135deg,#f59e0b,#f97316)}
.grad-4{background:linear-gradient(135deg,#10b981,#14b8a6)}
.card h3{font-size:1.5rem;margin-bottom:10px}
.card p{font-size:1.0625rem}

/* 平台卡 */
.platform{display:block;background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-3xl);
  padding:28px 22px;text-align:center;transition:border-color .25s,box-shadow .25s}
.platform:hover{border-color:var(--em-200);box-shadow:var(--shadow-xl);color:inherit}
.platform svg{width:48px;height:48px;stroke:var(--g-700);margin:0 auto 14px;transition:stroke .25s}
.platform:hover svg{stroke:var(--em-600)}
.platform h3{font-size:1.125rem}
.platform .ver{display:block;font-size:.8125rem;color:var(--g-500);margin-top:4px}
.platform .dl{display:inline-flex;align-items:center;gap:4px;margin-top:10px;font-size:.8125rem;
  color:var(--em-600);opacity:0;transition:opacity .25s}
.platform:hover .dl{opacity:1}
.platform .dl svg{width:14px;height:14px;stroke:var(--em-600);margin:0}

/* 文章卡 */
.blog-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.blog-head .more{display:none;font-weight:600;font-size:.9375rem}
.post{display:block;height:100%;background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-2xl);
  overflow:hidden;transition:border-color .25s,box-shadow .25s;color:inherit}
.post:hover{border-color:var(--em-200);box-shadow:var(--shadow-xl);color:inherit}
.post-cover{height:176px;overflow:hidden;position:relative;background:var(--g-100)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.post:hover .post-cover img{transform:scale(1.05)}
.post-cat{position:absolute;top:12px;left:12px;background:var(--em-500);color:#fff;font-size:.75rem;
  padding:3px 10px;border-radius:var(--radius-lg)}
.post-body{padding:20px}
.post h3{font-size:1.0625rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post:hover h3{color:var(--em-600)}
.post .excerpt{margin-top:8px;font-size:.875rem;color:var(--g-500);display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:16px;
  padding-top:12px;border-top:1px solid var(--g-50);font-size:.75rem;color:var(--g-400)}
.post-meta span{display:inline-flex;align-items:center;gap:4px}
.post-meta svg{width:13px;height:13px;stroke:var(--g-400)}

/* FAQ */
.faq{max-width:768px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-2xl);margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;text-align:left;cursor:pointer;font:inherit}
.faq-q h3{font-size:1.0625rem;color:var(--g-900)}
.faq-q svg{width:20px;height:20px;stroke:var(--g-400);flex:none;transition:transform .25s}
.faq-q[aria-expanded="true"] svg{transform:rotate(180deg);stroke:var(--em-600)}
.faq-a{display:none;padding:0 22px 20px;color:var(--g-600)}
.faq-a.open{display:block}
.faq-a ul{list-style:disc;padding-left:20px;margin-top:8px}
.faq-a li{margin:4px 0}

/* Footer */
.site-footer{background:var(--g-900);color:#fff;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.foot-brand{grid-column:1/-1}
.foot-brand .brand{color:#fff}
.foot-brand p{margin-top:12px;color:var(--g-400);font-size:.875rem;max-width:24rem}
.site-footer h3{color:#fff;font-size:.875rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:14px}
.site-footer li{margin-bottom:10px}
.site-footer li a{color:var(--g-400);font-size:.9375rem}
.site-footer li a:hover{color:var(--em-400)}
.copy{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  color:var(--g-500);font-size:.875rem;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* 子页面 */
.page-hero{padding:120px 0 56px;background:linear-gradient(160deg,#fff,var(--em-50));border-bottom:1px solid var(--g-100)}
.page-hero h1{font-size:clamp(2rem,5vw,3rem);margin-top:14px}
.page-hero p{margin-top:14px;font-size:1.125rem;max-width:44rem}
.crumb{font-size:.8125rem;color:var(--g-500)}
.crumb a{color:var(--g-500)}
.crumb a:hover{color:var(--em-600)}
.dl-card{display:block;background:#fff;border:1px solid var(--g-100);border-radius:var(--radius-3xl);padding:28px;
  text-align:center;transition:border-color .25s,box-shadow .25s;color:inherit}
.dl-card:hover{border-color:var(--em-200);box-shadow:var(--shadow-xl);color:inherit}
.dl-card svg{width:44px;height:44px;stroke:var(--em-600);margin:0 auto 14px}
.dl-card h3{font-size:1.25rem}
.dl-card .ver{display:block;color:var(--g-500);font-size:.875rem;margin:6px 0 14px}
.dl-card .btn{width:100%}
.article{max-width:768px;margin:0 auto}
.article h2{font-size:1.5rem;margin:36px 0 12px}
.article h3{font-size:1.25rem;margin:26px 0 10px}
.article p{margin:12px 0}
.article ul,.article ol{list-style:disc;padding-left:22px;margin:12px 0}
.article ol{list-style:decimal}
.article li{margin:6px 0}
.article .lead{font-size:1.125rem;color:var(--g-600)}
.article .note{background:var(--em-50);border-left:4px solid var(--em-500);border-radius:var(--radius-lg);
  padding:16px 18px;margin:22px 0;font-size:.9375rem;color:var(--g-700)}
.article figure{margin:26px 0}
.article figure img{display:block;width:100%;height:auto;background:var(--em-50);
  border:1px solid var(--g-100);border-radius:var(--radius-xl)}
.article figcaption{margin-top:10px;font-size:.8125rem;line-height:1.6;color:var(--g-500);text-align:center}
.table-wrap{overflow-x:auto;margin:20px 0}
table{width:100%;border-collapse:collapse;font-size:.9375rem}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--g-100)}
th{background:var(--g-50);color:var(--g-900);font-weight:600}
.cta-band{background:var(--g-900);color:#fff;padding:64px 0;text-align:center}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,3vw,2rem)}
.cta-band p{color:var(--g-400);margin:12px 0 28px}

@media (min-width:768px){
  .g2{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .nav-main{display:flex}
  .nav-cta{display:inline-flex;margin-left:8px}
  .burger{display:none}
  .m-menu{display:none !important}
  .foot-grid{grid-template-columns:2fr 1fr 1fr 1fr}
  .foot-brand{grid-column:auto}
  .stats-grid{gap:32px}
  .blog-head .more{display:inline-flex}
  .grid-platforms{grid-template-columns:repeat(2,1fr)}
  .grid-dl{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1024px){
  .hero{padding:152px 0 112px}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}
  .g3{grid-template-columns:repeat(3,1fr)}
  .g4{grid-template-columns:repeat(4,1fr)}
  .grid-platforms{grid-template-columns:repeat(4,1fr)}
  .grid-dl{grid-template-columns:repeat(4,1fr)}
  .grid-posts{grid-template-columns:repeat(3,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}