:root{
  --brown:#8B5E3C; --brown-d:#5C3B22; --brown-l:#C08A5A;
  --gold:#C8A15A; --ink:#2B211A; --ink-2:#5A4B40;
  --cream:#FAF6F0; --cream-2:#F1E9DF; --white:#fff;
  --line:#E7DCCF; --ok:#2E7D5B;
  --radius:18px;
  --shadow:0 10px 30px rgba(60,40,25,.10);
  --shadow-lg:0 18px 50px rgba(60,40,25,.16);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink); background:var(--cream); line-height:1.7;
  font-size:16px; overflow-x:hidden;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:0 18px}
section{padding:56px 0;position:relative}
.sec-head{text-align:center;margin-bottom:10px}
.sec-tag{
  display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brown);
  background:rgba(139,94,60,.10);padding:5px 14px;border-radius:99px;margin-bottom:12px;
  font-weight:600;
}
.sec-title{font-size:27px;line-height:1.35;font-weight:800;letter-spacing:-.5px}
.sec-title em{font-style:normal;color:var(--brown)}
.sec-sub{margin-top:10px;color:var(--ink-2);font-size:15px}

/* ===== 顶部 ===== */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:60;height:58px;
  background:rgba(250,246,240,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(231,220,207,.7);
  display:flex;align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;width:100%}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;letter-spacing:-.3px}
.logo .mk{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  background:linear-gradient(135deg,var(--brown),var(--brown-d));
  display:flex;align-items:center;justify-content:center;
}
.logo small{display:block;font-size:10px;font-weight:500;color:var(--ink-2);letter-spacing:1px}
.callbtn{
  display:inline-flex;align-items:center;gap:6px;background:var(--ink);color:#fff;
  padding:9px 15px;border-radius:99px;font-size:14px;font-weight:600;
  box-shadow:0 4px 14px rgba(43,33,26,.22);
}
.banner{
  position:fixed;top:58px;left:0;right:0;z-index:59;
  background:linear-gradient(90deg,var(--brown-d),var(--brown));
  color:#fff;font-size:13px;text-align:center;padding:7px 14px;letter-spacing:.3px;
}
.banner b{color:#FFD98A}

/* ===== HERO ===== */
.hero{position:relative;min-height:560px;display:flex;align-items:center;padding:130px 0 0;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(30,20,12,.86) 0%,rgba(30,20,12,.72) 45%,rgba(250,246,240,.98) 100%);}
.hero .wrap{padding-bottom:0}
.hero-in{max-width:640px;padding-bottom:60px}
.hero h1{color:#fff;font-size:34px;line-height:1.28;font-weight:800;letter-spacing:-1px}
.hero h1 em{font-style:normal;color:#FFD98A}
.hero p{margin-top:14px;color:rgba(255,255,255,.86);font-size:16px;max-width:520px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:99px;font-weight:700;font-size:16px;border:0;cursor:pointer;
  transition:transform .18s, box-shadow .18s;
}
.btn:active{transform:scale(.97)}
.btn-main{background:linear-gradient(135deg,var(--gold),#B3823F);color:#2B211A;box-shadow:0 10px 26px rgba(184,130,63,.42)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(6px)}
.trust{display:flex;gap:22px;flex-wrap:wrap;margin-top:30px}
.trust div{display:flex;align-items:center;gap:7px;color:rgba(255,255,255,.92);font-size:14px}
.trust svg{width:18px;height:18px;flex:0 0 18px}

/* ===== 痛点 ===== */
.pain{background:var(--white);border-radius:26px;box-shadow:var(--shadow);padding:26px 20px;margin-top:-46px;position:relative;z-index:5}
.pain-title{font-size:16px;font-weight:700;text-align:center;margin-bottom:18px}
.pain-title span{color:var(--brown)}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.pain-item{display:flex;align-items:flex-start;gap:10px;background:var(--cream);border-radius:14px;padding:13px}
.pain-item .ic{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:rgba(139,94,60,.12);
  display:flex;align-items:center;justify-content:center;color:var(--brown);
}
.pain-item b{display:block;font-size:14px;font-weight:700}
.pain-item p{font-size:12.5px;color:var(--ink-2);line-height:1.5}

/* ===== 优势 ===== */
.adv{background:var(--white)}
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.adv-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;background:var(--cream);
  transition:transform .2s,box-shadow .2s;
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.adv-card .ic{
  width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,var(--brown),var(--brown-d));
  color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.adv-card h3{font-size:16.5px;font-weight:700;margin-bottom:6px}
.adv-card p{font-size:13.5px;color:var(--ink-2);line-height:1.6}
.adv-card .hl{color:var(--brown);font-weight:700}

/* ===== 对比 ===== */
.cases{background:var(--cream-2)}
.case-grid{display:grid;gap:16px}
.case-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.case-card img{width:100%;height:220px;object-fit:cover}
.case-body{padding:16px 18px 18px}
.case-body h4{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}
.case-body h4 i{font-style:normal;font-size:11px;background:rgba(46,125,91,.12);color:var(--ok);padding:3px 9px;border-radius:99px;font-weight:700}
.case-body p{font-size:13.5px;color:var(--ink-2);margin-top:6px}

/* ===== 服务范围 ===== */
.svc{background:var(--white)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.svc-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);min-height:170px;display:flex;align-items:flex-end}
.svc-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.svc-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,12,6,0) 30%,rgba(20,12,6,.82) 100%);z-index:1}
.svc-txt{position:relative;z-index:2;color:#fff;padding:16px;width:100%}
.svc-txt b{font-size:16px;font-weight:700;display:block}
.svc-txt span{font-size:12.5px;color:rgba(255,255,255,.82)}

/* ===== 流程 ===== */
.flow{background:var(--cream-2)}
.flow-list{position:relative;padding-left:0}
.flow-item{display:flex;gap:14px;position:relative;padding-bottom:22px}
.flow-item:last-child{padding-bottom:0}
.flow-item .num{
  width:38px;height:38px;flex:0 0 38px;border-radius:50%;
  background:var(--white);border:2px solid var(--brown);color:var(--brown);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.flow-item:not(:last-child)::before{
  content:"";position:absolute;left:18px;top:38px;bottom:0;width:2px;background:linear-gradient(var(--brown),rgba(139,94,60,.25));
}
.flow-item h4{font-size:16px;font-weight:700;padding-top:6px}
.flow-item p{font-size:13.5px;color:var(--ink-2);margin-top:3px}

/* ===== 价格 ===== */
.price{background:var(--white)}
.p-table{background:var(--cream);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.p-row{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);gap:12px}
.p-row:last-child{border-bottom:0}
.p-row .l b{font-size:14.5px;font-weight:600;display:block}
.p-row .l span{font-size:12px;color:var(--ink-2)}
.p-row .r{text-align:right;white-space:nowrap}
.p-row .r b{font-size:18px;color:var(--brown);font-weight:800}
.p-row .r span{font-size:11.5px;color:var(--ink-2);display:block}
.p-note{margin-top:14px;font-size:12.5px;color:var(--ink-2);text-align:center;line-height:1.7}
.p-badge{
  margin-top:18px;background:linear-gradient(135deg,#FFF6E2,#F6E7C8);border:1px dashed #D9B979;
  border-radius:14px;padding:14px 16px;font-size:13.5px;color:#7A5A20;text-align:center;
}
.p-badge b{color:#A9701E}

/* ===== 评价 ===== */
.rev{background:var(--cream-2)}
.rev-card{background:var(--white);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:14px}
.rev-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.rev-av{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--brown-l),var(--brown));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.rev-top .n{font-size:14.5px;font-weight:700}
.rev-top .s{font-size:12px;color:var(--brown)}
.rev-card p{font-size:14.5px;color:var(--ink);line-height:1.75}
.rev-card .meta{font-size:12px;color:var(--ink-2);margin-top:10px}

/* ===== FAQ ===== */
.faq{background:var(--white)}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;background:var(--cream)}
.faq-q{padding:15px 16px;font-size:15px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer}
.faq-q i{font-style:normal;color:var(--brown);font-size:20px;line-height:1;transition:transform .25s;flex:0 0 20px;text-align:center}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a div{padding:0 16px 15px;font-size:14px;color:var(--ink-2);line-height:1.8}

/* ===== 表单 ===== */
.form-sec{background:linear-gradient(160deg,var(--brown-d),var(--ink));color:#fff}
.form-sec .sec-title{color:#fff}
.form-sec .sec-sub{color:rgba(255,255,255,.75)}
.form-sec .sec-tag{background:rgba(255,255,255,.14);color:#FFD98A}
.form-box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:22px;padding:22px 18px;backdrop-filter:blur(8px)}
.f-row{margin-bottom:12px}
.f-row label{display:block;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:6px}
.f-row input,.f-row select,.f-row textarea{
  width:100%;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;border-radius:12px;padding:12px 14px;font-size:15px;font-family:inherit;outline:none;
}
.f-row input::placeholder,.f-row textarea::placeholder{color:rgba(255,255,255,.45)}
.f-row input:focus,.f-row select:focus,.f-row textarea:focus{border-color:var(--gold);background:rgba(255,255,255,.14)}
.f-row select option{color:#2B211A}
.f-row textarea{resize:none;height:84px}
.f-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.btn-block{width:100%;margin-top:6px;font-size:17px;padding:16px}
.f-tip{font-size:12px;color:rgba(255,255,255,.6);text-align:center;margin-top:12px}
.contact-strip{display:flex;gap:12px;margin-top:16px}
.contact-strip a{
  flex:1;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:14px;
  padding:14px;text-align:center;color:#fff;font-size:14px;font-weight:600;
}
.contact-strip a span{display:block;font-size:11.5px;color:rgba(255,255,255,.6);font-weight:400;margin-top:2px}

/* ===== 页脚 ===== */
footer{background:#231A13;color:rgba(255,255,255,.6);padding:34px 0 100px;font-size:13px;text-align:center}
footer .fl{font-weight:700;color:#fff;font-size:15px;margin-bottom:8px;letter-spacing:.5px}
footer p+p{margin-top:5px}

/* ===== 吸底 ===== */
.dock{
  position:fixed;bottom:0;left:0;right:0;z-index:70;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  display:flex;gap:10px;box-shadow:0 -6px 20px rgba(60,40,25,.10);
}
.dock .btn{flex:1;padding:13px 10px;font-size:15px}
.dock .btn-call{background:var(--ink);color:#fff}
.dock .btn-main{box-shadow:none}

/* 动效 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* 桌面 */
@media(min-width:768px){
  section{padding:74px 0}
  .sec-title{font-size:36px}
  .hero{min-height:680px;padding-top:150px}
  .hero h1{font-size:52px}
  .hero p{font-size:18px}
  .pain{padding:34px 30px;margin-top:-70px}
  .pain-grid{grid-template-columns:repeat(4,1fr)}
  .adv-grid{grid-template-columns:repeat(3,1fr)}
  .case-grid{grid-template-columns:repeat(3,1fr)}
  .case-card img{height:240px}
  .svc-grid{grid-template-columns:repeat(3,1fr)}
  .flow-list{max-width:640px;margin:0 auto}
  .p-table{max-width:720px;margin:0 auto}
  .p-note,.p-badge{max-width:720px;margin-left:auto;margin-right:auto}
  .rev-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  .rev-card{margin-bottom:0}
  .faq{max-width:760px;margin:0 auto}
  .form-box{max-width:560px;margin:0 auto}
  .dock{display:none}
  footer{padding:44px 0}
}