:root{
  --ink:#1c3d5a;
  --ink-deep:#14263a;
  --ink-2:#223c52;
  --gold:#a8844b;
  --gold-soft:#f3ecdd;
  --paper:#faf9f6;
  --card:#ffffff;
  --line:#e7e2d8;
  --line-2:#efece4;
  --text:#33414f;
  --text-2:#6b7683;
  --serif:"Georgia","Songti SC","STSong","SimSun","Noto Serif SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--text);
  background:var(--paper);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--gold)}

/* 顶部 */
.topbar{background:var(--ink-deep);color:#e8edf3;position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(255,255,255,.08)}
.topbar-inner{max-width:1140px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold),#c89b5e);color:#fff;
  font-family:var(--serif);font-size:20px;font-weight:600;
  box-shadow:0 2px 8px rgba(200,155,94,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-text strong{font-size:17px;letter-spacing:1px;font-family:var(--serif)}
.brand-text span{font-size:12px;color:#9fb0c0}
.top-nav{display:flex;align-items:center;gap:22px;font-size:14px}
.top-nav a{color:#cdd7e1}
.top-nav a:hover{color:#fff}
.badge{font-size:12px;border:1px solid var(--gold);color:#e8c98d;padding:3px 10px;border-radius:20px;letter-spacing:1px}

/* Hero */
.hero{background:linear-gradient(180deg,var(--ink-deep) 0%,var(--ink) 100%);color:#fff;padding:72px 24px 64px;text-align:center}
.hero-inner{max-width:860px;margin:0 auto}
.hero-eyebrow{font-size:13px;letter-spacing:4px;color:#aebdcd;text-transform:uppercase;margin-bottom:18px}
.hero h1{font-family:var(--serif);font-size:44px;font-weight:600;letter-spacing:2px;line-height:1.25}
.hero h1 .accent{color:#e8c98d}
.hero-sub{font-size:16px;color:#c6d2de;max-width:620px;margin:20px auto 36px}
.hero-points{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.pt{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:18px 22px;display:flex;align-items:center;gap:14px;text-align:left;min-width:200px}
.pt-ico{width:40px;height:40px;border-radius:8px;background:rgba(200,155,94,.18);border:1px solid rgba(200,155,94,.4);display:grid;place-items:center;font-family:var(--serif);font-size:18px;color:#e8c98d}
.pt b{font-size:14px;display:block;color:#fff;letter-spacing:.5px}
.pt p{font-size:12px;color:#9fb0c0;line-height:1.5}

/* 诚信声明 */
.notice{background:var(--gold-soft);border-bottom:1px solid #e5d9c0}
.notice-inner{max-width:1140px;margin:0 auto;padding:16px 24px;display:flex;align-items:baseline;gap:16px;font-size:13px;color:#6b5230}
.notice-inner strong{color:#8a6420;white-space:nowrap;letter-spacing:.5px}
.notice-inner b{color:#8a6420}

/* 表单 */
.form-section{padding:56px 24px}
.form-card{max-width:760px;margin:0 auto;background:var(--card);border:1px solid var(--line-2);border-radius:16px;padding:40px 44px;box-shadow:0 12px 40px rgba(20,38,58,.06)}
.form-head{margin-bottom:28px;border-bottom:1px solid var(--line-2);padding-bottom:18px}
.form-head h2{font-family:var(--serif);font-size:24px;color:var(--ink-deep);letter-spacing:1px}
.form-head p{font-size:13px;color:var(--text-2);margin-top:4px}
.req{color:#c0392b;font-style:normal}
.field{display:block;margin-bottom:22px}
.field-label{font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:8px;display:block}
input[type=text],input[type=number],textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-size:14px;color:var(--text);background:#fcfbf9;transition:.18s;
  font-family:var(--sans);
}
input:focus,textarea:focus{outline:none;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(168,132,75,.12)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.seg{display:flex;gap:0;background:#f1eee6;border-radius:10px;padding:4px;width:max-content}
.seg-btn{border:none;background:transparent;padding:9px 26px;border-radius:8px;font-size:14px;color:var(--text-2);cursor:pointer;transition:.18s;font-family:var(--sans)}
.seg-btn.active{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(20,38,58,.12);font-weight:600}
.seg-hint{font-size:12px;color:var(--text-2);margin-top:8px;display:block}

/* 服务类型卡片 */
.plan{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.plan-item{text-align:left;background:#fcfbf9;border:1.5px solid var(--line-2);border-radius:12px;padding:20px;cursor:pointer;transition:.18s;font-family:var(--sans)}
.plan-item:hover{border-color:var(--gold)}
.plan-item.active{border-color:var(--gold);background:#fffdf8;box-shadow:0 4px 16px rgba(168,132,75,.12)}
.plan-top{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:6px}
.plan-top b{font-size:15px;color:var(--ink-deep)}
.plan-top em{font-style:normal;font-size:16px;color:var(--gold);font-weight:700}
.plan-item p{font-size:13px;color:var(--text-2);line-height:1.6;margin-bottom:10px}
.plan-tag{font-size:11px;color:var(--text-2);padding:2px 9px;background:#f0ede5;border-radius:12px;letter-spacing:.5px}
.plan-tag.gold{color:#8a6420;background:var(--gold-soft)}

.btn-primary{
  width:100%;padding:15px;border:none;border-radius:12px;cursor:pointer;margin-top:8px;
  background:linear-gradient(135deg,var(--ink),var(--ink-deep));color:#fff;font-size:16px;letter-spacing:2px;font-weight:600;
  transition:.2s;font-family:var(--sans);
}
.btn-primary:hover{box-shadow:0 8px 24px rgba(20,38,58,.28);transform:translateY(-1px)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.form-foot{font-size:12px;color:var(--text-2);text-align:center;margin-top:16px}

/* 结果区 */
.result-section{padding:0 24px 32px}
.result-card{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--line-2);border-radius:16px;padding:40px 44px;box-shadow:0 12px 40px rgba(20,38,58,.06)}
.result-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-bottom:18px;border-bottom:1px solid var(--line-2);margin-bottom:20px}
.result-head h2{font-family:var(--serif);font-size:22px;color:var(--ink-deep)}
.result-head p{font-size:13px;color:var(--text-2);margin-top:4px}
.result-actions{display:flex;gap:10px;flex-wrap:wrap}
.btn-ghost,.btn-gold{border:1px solid var(--line);background:#fff;color:var(--ink-2);padding:9px 16px;border-radius:9px;font-size:13px;cursor:pointer;transition:.18s;font-family:var(--sans)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-gold{background:var(--gold);border-color:var(--gold);color:#fff;font-weight:600}
.btn-gold:hover{background:#9a763f}
.btn-ghost:disabled,.btn-gold:disabled{opacity:.45;cursor:not-allowed}
.progress{margin-bottom:18px;background:#fff;border:1px solid var(--line-2);border-radius:10px;padding:12px 16px}
.progress-bar{height:6px;background:#efece4;border-radius:6px;overflow:hidden;margin-bottom:8px}
.progress-bar::before{content:"";display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),#c89b5e);transition:width .4s;border-radius:6px}
.progress span{font-size:12px;color:var(--text-2)}

/* 结果正文渲染 */
.result-body{font-family:var(--serif);color:#2c3a47;font-size:15.5px;line-height:1.95}
.result-body .integrity{
  background:var(--gold-soft);border-left:3px solid var(--gold);padding:14px 18px;border-radius:8px;
  font-family:var(--sans);font-size:13px;color:#6b5230;margin-bottom:26px;
}
.result-body h1{font-size:22px;color:var(--ink-deep);margin:26px 0 14px;text-align:center}
.result-body h2{font-size:19px;color:var(--ink-deep);margin:24px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--line-2)}
.result-body h3{font-size:16.5px;color:var(--ink-2);margin:18px 0 8px}
.result-body h4,h5,h6{font-size:15px;color:var(--ink-2);margin:14px 0 6px}
.result-body p{margin:10px 0;text-indent:2em}
.result-body ul,.result-body ol{margin:10px 0 10px 2em}
.result-body li{margin:5px 0}
.result-body blockquote{margin:12px 0;padding:8px 16px;border-left:3px solid var(--gold);background:#faf8f3;color:var(--text-2)}
.result-body code{font-family:"SF Mono",Consolas,monospace;background:#f2f0e9;padding:1px 6px;border-radius:4px;font-size:13px}
.result-body pre{background:#f6f4ee;border:1px solid var(--line-2);border-radius:8px;padding:14px;overflow:auto;margin:12px 0}
.result-body pre code{background:none;padding:0}
.result-body table{border-collapse:collapse;width:100%;margin:14px 0;font-family:var(--sans);font-size:13.5px}
.result-body th,.result-body td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.result-body th{background:#f6f4ee;color:var(--ink-2)}
.result-body hr{border:none;border-top:1px solid var(--line-2);margin:20px 0}

/* 使用说明 */
.guide-section{padding:40px 24px 56px;border-top:1px solid var(--line-2)}
.guide-inner{max-width:760px;margin:0 auto}
.guide-inner h3{font-family:var(--serif);font-size:20px;color:var(--ink-deep);margin-bottom:16px;letter-spacing:1px}
.guide-inner ol{margin-left:1.4em;color:var(--text)}
.guide-inner li{margin:8px 0;font-size:14px}
.guide-inner b{color:var(--ink)}

/* footer */
.footer{background:var(--ink-deep);color:#9fb0c0;padding:30px 24px;text-align:center;font-size:12.5px}
.footer-inner{max-width:900px;margin:0 auto;line-height:1.8}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(14,22,32,.55);display:grid;place-items:center;z-index:100;padding:24px}
.modal[hidden]{display:none}
.modal-box{background:#fff;border-radius:16px;padding:32px;max-width:380px;width:100%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-box h3{font-family:var(--serif);font-size:20px;color:var(--ink-deep)}
.modal-desc{font-size:13px;color:var(--text-2);margin-top:6px}
.qr{margin:20px auto;width:180px;height:180px;border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#fcfbf9}
.qr span{font-size:12px;color:var(--text-2)}
.qr-grid{width:90px;height:90px;display:grid;grid-template-columns:repeat(5,1fr);gap:3px}
.qr-grid i{background:var(--ink-deep);border-radius:1px}
.modal-amount{font-size:14px;color:var(--text);margin-bottom:16px}
.modal-amount b{font-size:26px;color:#c0392b;font-family:var(--serif)}
.modal-actions{display:flex;gap:12px}
.modal-actions .btn-primary{margin-top:0;width:1fr;flex:1}
.modal-actions .btn-ghost{flex:1}
.modal-note{font-size:11.5px;color:#b8865e;margin-top:16px;line-height:1.6}

@media (max-width:640px){
  .hero h1{font-size:32px}
  .field-row,.plan{grid-template-columns:1fr}
  .form-card,.result-card{padding:28px 20px}
  .result-head{flex-direction:column}
  .top-nav a{display:none}
}