/* ================================================================
   养诺诺 · 共享设计系统 theme.css
   从 index.html 提取，统一全站视觉语言
   ================================================================ */

/* ===== Design Tokens ===== */
:root{
  --green:#173f2a;--green-2:#2f6845;--green-3:#3d7d50;--mint:#dfead9;--cream:#f7f1e1;--cream-2:#f9f5ea;
  --sand:#e9dfc9;--parchment:#f4ecd6;--wood:#7a5a3a;--wood-dark:#5c4226;--wood-light:#a07a4e;
  --orange:#e79a45;--gold:#c99a3f;--ink:#1e281f;--muted:#69736b;--white:#fff;
  --border:rgba(23,63,42,.12);--radius-xl:28px;--radius-lg:22px;--radius-md:18px;--radius-sm:12px;--radius-xs:8px;
  --shadow:0 20px 50px rgba(20,50,30,.1);--shadow-sm:0 10px 28px rgba(20,50,30,.06);--shadow-wood:0 14px 30px rgba(92,66,38,.16);
  --pad:26px;--pad-mobile:16px;--maxw:1200px;--header-h:72px;--header-h-m:60px;
}

/* ===== Reset ===== */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

body{font-family:Nunito,"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:transparent}
img{width:100%;display:block;object-fit:cover}

/* ===== Header ===== */
header, .site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(247,241,225,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(23,63,42,.07)}
.nav{max-width:var(--maxw);height:var(--header-h);margin:auto;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{display:flex;align-items:center;gap:9px;font-weight:900;color:var(--green);font-size:19px;font-family:"Ma Shan Zheng","Noto Sans SC",cursive;white-space:nowrap}
.logo small{display:block;font:800 7px Nunito;letter-spacing:1.4px;margin-top:3px;color:var(--wood)}
.logo-mark{width:36px;height:36px;border-radius:12px 12px 12px 4px;background:var(--green);color:#fff9e9;font:900 21px Nunito;display:grid;place-items:center;transform:rotate(-8deg);flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:22px;font-size:13.5px;color:#465349}
.nav-links a{transition:.2s;font-weight:700;white-space:nowrap;padding:6px 0;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--green)}
.nav-links a.active::after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--green);border-radius:2px}
.nav-actions{display:flex;align-items:center;gap:8px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:5px;padding:10px 18px;border-radius:999px;font-weight:800;transition:.25s;letter-spacing:-.2px;white-space:nowrap;font-size:13px}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-2);transform:translateY(-1px)}
.btn-secondary{border:1px solid var(--border);background:#fff;color:var(--green)}
.btn-secondary:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.lang{min-width:40px;height:40px;padding:0 10px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--green);font-weight:800;font-size:12px}
.lang:hover{background:var(--mint)}
.mobile-menu{display:none;font-size:22px;color:var(--green);padding:4px 8px;border-radius:10px}

/* ===== Main wrapper ===== */
main{padding-top:var(--header-h)}

/* ===== Section common ===== */
.section{padding:60px var(--pad)}
.si{max-width:var(--maxw);margin:auto}
.sh{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sh h2{color:var(--green);font-size:clamp(26px,3.2vw,38px);letter-spacing:-1.2px;line-height:1.1}
.sh p{max-width:420px;color:var(--muted);font-size:14.5px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;background:var(--mint);color:var(--green);border-radius:999px;font-size:12px;font-weight:800;margin-bottom:14px;letter-spacing:.3px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:#4f9b5c}
.sec-num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;font:900 13px Nunito;flex-shrink:0}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);background:var(--green);color:#fff;padding:12px 20px;border-radius:14px;box-shadow:var(--shadow);z-index:9999;opacity:0;pointer-events:none;transition:.35s;font-weight:700;font-size:14px}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== Mobile Drawer ===== */
.drawer{position:fixed;inset:0;background:rgba(23,63,42,.5);backdrop-filter:blur(6px);z-index:200;opacity:0;pointer-events:none;transition:.25s}
.drawer.show{opacity:1;pointer-events:auto}
.drawer-panel{position:absolute;right:0;top:0;bottom:0;width:80%;max-width:300px;background:var(--cream);padding:70px 20px 20px;transform:translateX(100%);transition:.3s;display:flex;flex-direction:column;gap:6px;box-shadow:-20px 0 40px rgba(0,0,0,.12)}
.drawer.show .drawer-panel{transform:none}
.drawer-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;background:#fff;border:1px solid var(--border);color:var(--green);font-size:20px;font-weight:800;display:grid;place-items:center}
.drawer a{padding:12px 14px;border-radius:12px;font-weight:700;color:var(--green);font-size:15px}
.drawer a:hover{background:var(--mint)}
.drawer .btn-primary{justify-content:center;text-align:center;margin-top:12px}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===== Footer ===== */
footer{background:var(--green);color:#fff;padding:50px var(--pad) 28px}
.footer-inner{max-width:var(--maxw);margin:auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
.footer-brand p{color:rgba(255,255,255,.6);max-width:340px;margin-top:12px;font-size:14px;line-height:1.7}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:rgba(255,255,255,.1);color:#fff9e9}
footer h4{margin-bottom:12px;font-size:14px;color:rgba(255,255,255,.9)}
footer ul{list-style:none}
footer li{color:rgba(255,255,255,.6);margin-bottom:8px;font-size:13.5px}
footer li a{transition:.2s}
footer li a:hover{color:#fff}
.copyright{padding-top:22px;border-top:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.4);font-size:12px}
.copyright-line2{margin-top:3px;font-style:italic;opacity:.8;font-family:"Ma Shan Zheng",cursive}

/* ===== Page Hero (for sub-pages) ===== */
.page-hero{background:linear-gradient(180deg,var(--cream) 0%,var(--mint) 100%);padding:50px var(--pad) 60px}
.page-hero-inner{max-width:var(--maxw);margin:auto;text-align:center}
.page-hero h1{font-size:clamp(30px,4vw,48px);color:var(--green);letter-spacing:-1.5px;line-height:1.1;margin-bottom:12px;font-family:"Ma Shan Zheng","Noto Sans SC",cursive}
.page-hero p{max-width:520px;margin:0 auto;color:var(--muted);font-size:15px;line-height:1.7}

/* ===== Responsive ===== */
@media(max-width:960px){
  .nav-links{display:none}
  .mobile-menu{display:block}
  .nav-actions .btn-primary{display:none}
  .footer-top{grid-template-columns:repeat(3,1fr);gap:22px 12px}
  .footer-brand{grid-column:1/-1;padding-bottom:6px}
}
@media(max-width:600px){
  .section{padding:40px var(--pad-mobile)}
  .page-hero{padding:30px var(--pad-mobile) 40px}
  .nav{padding:0 var(--pad-mobile);height:var(--header-h-m)}
  .logo{font-size:17px}
  .logo-mark{width:32px;height:32px;font-size:19px;border-radius:10px 10px 10px 4px}
  .sh{display:block}
  .sh h2{margin-bottom:10px}
  .footer-top{grid-template-columns:repeat(3,1fr);gap:22px 12px;padding-bottom:32px}
  .footer-brand{grid-column:1/-1;padding-bottom:6px}
  .footer-brand .logo-mark{width:34px;height:34px;font-size:20px;border-radius:10px 10px 10px 4px}
  footer h4{margin-bottom:10px;font-size:13px}
  footer li{margin-bottom:7px;font-size:12px}
  .footer-brand p{max-width:none}
}
@media(max-width:375px){
  .btn{min-height:44px;min-width:44px;padding:11px 16px}
}