:root{
  --zi-main:#7B5FA7;      /* 紫菀 主色 */
  --zi-lilac:#A68AC7;     /* 丁香紫 */
  --zi-deep:#5E48B8;      /* 绀紫 */
  --zi-mint:#C7ABD6;      /* 薄荷紫 */
  --zi-snow:#DCD2E6;      /* 雪青 */
  --zi-ink:#4B426E;       /* 黛紫 正文强调 */
  --ink:#2a2138;
  --bg:#ffffff;
  --bg-alt:#f6f3fb;
  --muted:#6b6480;
  --radius:14px;
  --shadow:0 6px 24px rgba(91,45,142,.10);
  --maxw:1080px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;color:var(--ink);background:var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.7;font-size:16px}
a{color:var(--zi-deep);text-decoration:none}
img{max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.muted{color:var(--muted)}
.center{text-align:center;margin-top:28px}
.center-text{text-align:center}
h1,h2,h3,h4{color:var(--zi-ink);line-height:1.3;font-weight:700}
h1{font-size:clamp(28px,5vw,44px);margin:.2em 0 .4em}
h2{font-size:clamp(22px,3.4vw,30px);margin:0 0 .6em}
.eyebrow{color:var(--zi-main);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:13px;margin:0 0 8px}

/* buttons */
.btn{display:inline-block;padding:11px 22px;border-radius:999px;font-weight:600;border:2px solid transparent;cursor:pointer;font-size:15px;transition:.15s}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-primary{background:var(--zi-deep);color:#fff}
.btn-primary:hover{background:var(--zi-main)}
.btn-ghost{background:transparent;border-color:var(--zi-lilac);color:var(--zi-deep)}
.btn-ghost:hover{background:var(--zi-snow)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--zi-snow)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--zi-ink);font-size:18px}
.brand-mark{display:inline-flex;width:30px;height:30px;border-radius:8px;background:var(--zi-deep);color:#fff;align-items:center;justify-content:center;font-size:16px}
.nav{display:flex;gap:18px;margin-left:auto;flex-wrap:wrap}
.nav a{color:var(--zi-ink);font-weight:500}
.nav a.active,.nav a:hover{color:var(--zi-deep)}
.nav-cta{margin-left:6px}

/* hero */
.hero{background:linear-gradient(135deg,#f3ecfb 0%,#e8def5 100%);padding:64px 0 48px;text-align:center}
.hero .lead{font-size:20px;color:var(--zi-ink);font-weight:600;margin:.2em 0}
.hero-desc{max-width:680px;margin:0 auto 22px;color:var(--muted)}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.hero-stats{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.stat{background:#fff;border-radius:var(--radius);padding:16px 22px;min-width:140px;box-shadow:var(--shadow)}
.stat-value{font-size:24px;font-weight:800;color:var(--zi-deep)}
.stat-label{font-size:13px;color:var(--muted)}

/* sections */
.section{padding:56px 0}
.section-alt{background:var(--bg-alt)}
.section-title{text-align:center;margin-bottom:32px}
.page-hero{background:linear-gradient(135deg,#f3ecfb 0%,#e8def5 100%);padding:48px 0 36px}
.page-hero .lead{color:var(--zi-ink);font-size:18px;max-width:720px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--zi-snow)}
.card-icon{font-size:30px;margin-bottom:8px}
.card h3{margin:.2em 0 .4em;font-size:18px}

/* steps */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;counter-reset:s}
.steps li{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.step-num{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--zi-deep);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:8px}
.steps h3{font-size:18px;margin:.2em 0}

/* tables */
.table-wrap{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.data-table th,.data-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--zi-snow);font-size:15px}
.data-table th{background:var(--zi-deep);color:#fff;font-weight:600}
.data-table tr:last-child td{border-bottom:none}
.badge{display:inline-block;background:var(--zi-snow);color:var(--zi-deep);border-radius:6px;padding:2px 8px;font-weight:700;font-size:13px}

/* cases */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.case-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center;border-top:4px solid var(--zi-deep)}
.case-metric{font-size:34px;font-weight:800;color:var(--zi-deep)}
.case-title{font-weight:700;margin:6px 0 2px;color:var(--zi-ink)}
.case-label{color:var(--zi-main);font-weight:600;font-size:14px;margin-bottom:8px}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border-radius:var(--radius);padding:6px 20px;box-shadow:var(--shadow);border:1px solid var(--zi-snow)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--zi-ink);padding:14px 0;font-size:17px}
.faq-answer{padding:0 0 16px;color:var(--muted)}

/* posts */
.post-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.post-card{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);border:1px solid var(--zi-snow);display:block;color:inherit}
.post-card:hover{transform:translateY(-2px);transition:.15s;border-color:var(--zi-lilac)}
.post-card h3{margin:.3em 0;font-size:18px;color:var(--zi-ink)}
.tag{display:inline-block;background:var(--zi-snow);color:var(--zi-deep);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:700}
.post-date{font-size:12px;color:var(--muted)}
.post-body{font-size:17px;color:var(--ink)}
.post-body h2{margin-top:1.4em}
.post-body p{margin:.6em 0}
.post-meta{margin-bottom:18px}

/* join */
.join-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:start}
.join-form-wrap,.join-side{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form{display:flex;flex-direction:column;gap:14px;margin-top:14px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:600;color:var(--zi-ink)}
.form input,.form textarea,.form select{font:inherit;padding:11px 13px;border:1.5px solid var(--zi-snow);border-radius:10px;background:#fcfbff;color:var(--ink)}
.form input:focus,.form textarea:focus{border-color:var(--zi-main);outline:none}
.form-msg{margin:0;font-weight:600}
.form-msg.ok{color:green}.form-msg.err{color:#c0392b}
.qr{width:160px;border-radius:10px;margin-top:8px;border:1px solid var(--zi-snow)}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{padding:6px 0 6px 26px;position:relative}
.check-list li:before{content:"✓";position:absolute;left:0;color:var(--zi-deep);font-weight:800}

/* footer */
.site-footer{background:var(--zi-ink);color:#e9e3f5;padding:40px 0 20px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px}
.site-footer h4{color:#fff;margin:0 0 10px;font-size:15px}
.site-footer a{display:block;color:#cdbce8;padding:3px 0}
.site-footer .brand{color:#fff;margin-bottom:8px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid #5a4f7a;margin-top:24px;padding-top:16px;font-size:13px}

/* responsive */
@media(max-width:720px){
  .nav{display:none}
  .join-grid{grid-template-columns:1fr}
  .hero-stats{flex-direction:column;align-items:center}
  .contrast{grid-template-columns:1fr}
  .manifesto-lead{font-size:17px}
}

/* 推客本质 · 主张条 */
.manifesto{background:linear-gradient(135deg,var(--zi-deep) 0%,var(--zi-ink) 100%);color:#fff;padding:60px 0}
.manifesto .eyebrow.light{color:var(--zi-mint)}
.manifesto-title{color:#fff;text-align:center;font-size:clamp(26px,4.5vw,40px);margin:.1em 0 .3em}
.manifesto-lead{text-align:center;max-width:720px;margin:0 auto 38px;color:#e9e3f5;font-size:19px}
.manifesto-lead strong{color:#fff;border-bottom:2px solid var(--zi-lilac);padding-bottom:2px}
.contrast{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:38px}
.contrast > div{border-radius:var(--radius);padding:24px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16)}
.contrast-no{border-color:rgba(214,138,138,.55)}
.contrast-yes{border-color:rgba(138,214,170,.55)}
.c-bad,.c-good{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;font-weight:800;margin-bottom:8px;font-size:18px}
.c-bad{background:rgba(214,138,138,.22);color:#ffc2c2}
.c-good{background:rgba(138,214,170,.22);color:#aef0c8}
.contrast h3{color:#fff;font-size:19px;margin:.2em 0 .35em}
.contrast p{color:#d8cfee;margin:0;font-size:15px}
.manifesto-points{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-bottom:34px}
.mp{background:rgba(255,255,255,.07);border-radius:var(--radius);padding:22px;border:1px solid rgba(255,255,255,.12)}
.mp h3{color:#fff;font-size:17px;margin:.2em 0 .45em}
.mp p{color:#cfc4e8;font-size:15px;margin:0}
.manifesto .btn-primary{background:#fff;color:var(--zi-deep)}
.manifesto .btn-primary:hover{background:var(--zi-snow)}
.manifesto .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.manifesto .btn-ghost:hover{background:rgba(255,255,255,.12)}

/* admin form reuse */
label{display:flex;flex-direction:column;gap:6px;font-weight:600;color:var(--zi-ink);margin-bottom:14px}
input,textarea,select{font:inherit;padding:10px 12px;border:1.5px solid var(--zi-snow);border-radius:10px;background:#fcfbff;color:var(--ink)}
input:focus,textarea:focus,select:focus{border-color:var(--zi-main);outline:none}
.admin-card ul{margin:0;padding-left:18px}
.admin-card li{margin:4px 0}