*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#fbf8f4;--bg2:#fff;--card:#ffffff;
  --line:#efe7dd;--txt:#2c2a28;--dim:#8b8178;
  --p:#ff7a59;--p2:#ffb24a;--blue:#5b8def;--green:#27b894;
  --r:22px;--shadow:0 18px 50px rgba(120,90,60,.10);
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.9;font-size:17px}
.wrap{max-width:940px;margin:0 auto;padding:0 22px}
img{max-width:100%;display:block;border-radius:16px}
p{margin:14px 0;color:#4a443d}
a{color:var(--blue);text-decoration:none}
.nav{position:sticky;top:0;z-index:50;background:rgba(251,248,244,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:800;font-size:18px;letter-spacing:.3px}
.brand b{background:linear-gradient(90deg,var(--p),var(--p2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav a.link{color:var(--dim);font-size:14px;margin-left:22px;font-weight:600}
.nav a.link:hover{color:var(--p)}
.hero{position:relative;padding:92px 0 60px;text-align:center;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto -10%;height:520px;background:radial-gradient(60% 60% at 50% 0,rgba(255,122,89,.18),transparent 70%);z-index:0}
.hero .wrap{position:relative;z-index:1}
.kicker{display:inline-block;color:var(--p);font-weight:800;letter-spacing:2px;font-size:13px;text-transform:uppercase;background:rgba(255,122,89,.1);padding:6px 14px;border-radius:999px}
.hero h1{font-size:46px;line-height:1.2;font-weight:900;margin:18px 0 14px}
.hero h1 b{background:linear-gradient(90deg,var(--p),var(--p2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--dim);font-size:18px;max-width:560px;margin:0 auto}
.tip{margin:26px auto 0;max-width:720px;text-align:left;background:linear-gradient(180deg,#fff,#fff7f1);border:1px solid #ffe2d3;border-left:4px solid var(--p);border-radius:var(--r);padding:18px 22px;color:#6b5d52;font-size:15px;box-shadow:var(--shadow)}
.section{padding:54px 0}
.kicker.s{color:var(--blue)}
.section h2{font-size:30px;font-weight:850;margin:12px 0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:640px){.grid{grid-template-columns:1fr}.hero h1{font-size:32px}}
.card .tag{display:inline-block;font-size:12px;font-weight:800;color:var(--p);background:rgba(255,122,89,.12);padding:4px 10px;border-radius:999px;margin-bottom:8px}
.card h3{font-size:18px;margin-bottom:6px}
.step{display:flex;gap:16px;align-items:flex-start;padding:14px 0}
.step .n{flex:0 0 auto;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--p),var(--p2));color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 8px 18px rgba(255,122,89,.35)}
.figure{margin:22px 0}
.cap{color:var(--dim);font-size:13px;margin-top:8px;text-align:center}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:18px 0}
.gallery img{border:1px solid var(--line);box-shadow:var(--shadow);transition:.3s;cursor:zoom-in}
.gallery img:hover{transform:translateY(-4px)}
@media(max-width:560px){.gallery{grid-template-columns:1fr}}
.foot{padding:54px 0 70px;text-align:left;border-top:1px solid var(--line);background:var(--bg2)}
.foot .big{font-size:24px;font-weight:850;margin-bottom:10px}

.foot p{color:#6b6259;font-size:15px;line-height:1.9;margin:8px 0 0}
.foot p.lead{font-size:17px;font-weight:600;color:var(--txt)}
.foot .big{font-size:24px;font-weight:850;margin-bottom:12px;color:var(--txt)}
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.show{opacity:1;transform:none}
.lightbox{position:fixed;inset:0;background:rgba(20,16,12,.86);display:none;align-items:center;justify-content:center;z-index:100;padding:30px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:12px}