/* 主题2 古典国风 */
:root{--c:#a02828;--c2:#2a1810;--a:#c8a878;--s:#faf5ed;--txt:#2a1810;--muted:#7a6b5a}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Serif SC","Songti SC","SimSun",serif;color:var(--txt);line-height:1.8;background:var(--s);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.nav{position:fixed;top:0;left:0;right:0;z-index:999;background:rgba(250,245,237,.95);backdrop-filter:blur(20px);border-bottom:1px solid rgba(160,40,40,.15)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-size:24px;font-weight:900;color:var(--c);letter-spacing:4px;font-family:"Noto Serif SC",serif;display:flex;align-items:center;gap:8px}
.logo::before{content:"◆";color:var(--a);font-size:18px}
.nav-menu{display:flex;gap:36px}
.nav-menu a{font-size:15px;color:var(--txt);position:relative;padding:6px 0}
.nav-menu a::after{content:"";position:absolute;bottom:0;left:50%;width:0;height:2px;background:var(--c);transition:all .3s;transform:translateX(-50%)}
.nav-menu a:hover::after{width:100%}
.nav-cta{padding:10px 24px;background:var(--c);color:var(--s)!important;border-radius:4px;font-weight:600}
.hero{position:relative;min-height:720px;background:linear-gradient(135deg,#2a1810 0%,#5c1818 50%,#a02828 100%);color:var(--s);overflow:hidden;padding-top:72px;display:flex;align-items:center}
.hero::before{content:"";position:absolute;inset:0;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><g fill='%23c8a878' opacity='.08'><circle cx='100' cy='100' r='80'/><circle cx='100' cy='100' r='60'/><circle cx='100' cy='100' r='40'/><circle cx='100' cy='100' r='20'/></g></svg>") center/600px no-repeat;opacity:.4}
.hero-inner{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:80px 24px;display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}
.hero-badge{display:inline-block;padding:6px 20px;background:rgba(200,168,120,.15);border:1px solid var(--a);color:var(--a);font-size:13px;letter-spacing:3px;margin-bottom:28px}
.hero h1{font-size:52px;font-weight:900;line-height:1.3;margin-bottom:24px;letter-spacing:2px}
.hero h1 .hl{color:var(--a);position:relative;display:inline-block}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;background:rgba(200,168,120,.3);z-index:-1}
.hero p.lead{font-size:18px;opacity:.88;margin-bottom:40px;max-width:560px;line-height:2}
.hero-cta{display:inline-flex;align-items:center;gap:12px;padding:16px 36px;background:var(--a);color:var(--c2);border-radius:4px;font-weight:700;font-size:16px;letter-spacing:2px;transition:all .3s}
.hero-cta:hover{background:#d8b888;transform:translateY(-3px);box-shadow:0 16px 40px rgba(0,0,0,.3)}
.hero-decor{position:relative;height:480px;display:flex;align-items:center;justify-content:center}
.hero-decor::before{content:"";position:absolute;width:380px;height:380px;border:2px solid var(--a);border-radius:50%;opacity:.3;animation:rotate 30s linear infinite}
.hero-decor::after{content:"";position:absolute;width:280px;height:280px;border:2px solid var(--a);border-radius:50%;opacity:.5;animation:rotate 20s linear infinite reverse}
@keyframes rotate{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.hero-decor .center{position:relative;width:180px;height:180px;background:radial-gradient(circle,var(--a),var(--c));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--c2);font-weight:900;letter-spacing:4px;box-shadow:0 24px 60px rgba(0,0,0,.4)}
section{padding:96px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 64px}
.section-eyebrow{display:inline-block;padding:6px 20px;background:rgba(160,40,40,.1);color:var(--c);font-size:13px;letter-spacing:4px;margin-bottom:20px;font-weight:600}
.section-head h2{font-size:42px;font-weight:900;line-height:1.4;margin-bottom:16px;letter-spacing:2px}
.section-head p{font-size:16px;color:var(--muted);line-height:1.8}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{background:#fff;border-radius:8px;padding:40px 32px;border:1px solid #e8d8c0;position:relative;transition:all .3s}
.card::before{content:"";position:absolute;top:0;left:0;width:0;height:100%;background:linear-gradient(180deg,var(--c),var(--a));transition:width .4s;z-index:0;opacity:.05}
.card:hover{transform:translateY(-4px);box-shadow:0 24px 60px rgba(160,40,40,.15);border-color:var(--c)}
.card>*{position:relative;z-index:1}
.card .icon{width:64px;height:64px;border-radius:4px;background:linear-gradient(135deg,var(--c),var(--a));color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:24px;font-size:28px}
.card h3{font-size:22px;font-weight:700;margin-bottom:14px;letter-spacing:1px}
.card p{color:var(--muted);font-size:14px;line-height:1.9}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.proc-step{background:#fff;padding:32px 24px;border-radius:8px;text-align:center;border:1px solid #e8d8c0;position:relative}
.proc-step .n{font-size:56px;font-weight:900;color:var(--a);font-family:"Noto Serif SC",serif;margin-bottom:12px}
.proc-step h4{font-size:18px;margin-bottom:8px;letter-spacing:1px}
.proc-step p{font-size:14px;color:var(--muted)}
.faq-item{background:#fff;border:1px solid #e8d8c0;border-radius:8px;padding:24px 28px;margin-bottom:14px;cursor:pointer}
.faq-q{display:flex;justify-content:space-between;font-weight:700;font-size:16px;letter-spacing:1px}
.faq-q::after{content:"＋";color:var(--c);font-size:20px}
.faq-item.open .faq-q::after{content:"－"}
.faq-a{margin-top:14px;color:var(--muted);font-size:14px;line-height:1.9;display:none}
.faq-item.open .faq-a{display:block}
.cta-bg{background:linear-gradient(135deg,#2a1810,#a02828);color:var(--s);border-radius:8px;padding:80px 64px;position:relative;overflow:hidden}
.cta-bg::before{content:"";position:absolute;top:50%;left:50%;width:600px;height:600px;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(200,168,120,.2),transparent 70%)}
.cta-form{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;max-width:600px;position:relative;z-index:2}
.cta-form input{padding:16px 20px;border:1px solid rgba(200,168,120,.3);background:rgba(255,255,255,.05);color:var(--s);font-size:15px;font-family:inherit;border-radius:4px}
.cta-form input::placeholder{color:rgba(200,168,120,.7)}
.cta-form button{grid-column:1/-1;padding:18px;background:var(--a);color:var(--c2);border:0;font-size:16px;font-weight:700;letter-spacing:4px;cursor:pointer;font-family:inherit}
footer{background:#1a0e08;color:#c8b898;padding:60px 0 30px;margin-top:80px;border-top:2px solid var(--a)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.foot-col h5{color:var(--a);font-size:16px;margin-bottom:20px;letter-spacing:3px}
.foot-col a{display:block;font-size:14px;padding:6px 0;transition:color .2s}
.foot-col a:hover{color:var(--a)}
.foot-city{display:grid;grid-template-columns:repeat(5,1fr);gap:8px 12px;margin-top:24px}
.foot-city a{font-size:13px;padding:6px 0;color:#8b7a6a}
.foot-city a:hover{color:var(--a)}
.foot-bot{border-top:1px solid rgba(200,168,120,.2);padding-top:24px;display:flex;justify-content:space-between;font-size:13px;color:#7a6a5a}
@media (max-width:980px){
  .nav-menu{display:none}
  .hero-inner,.grid-3,.foot-grid,.process{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:34px}
  .section-head h2{font-size:28px}
  .hero-decor{height:300px}
  .cta-bg{padding:48px 24px}
  .foot-city{grid-template-columns:repeat(3,1fr)}
}