/* haibao SaaS — 共享样式(落地页 + 生成器) */
*{box-sizing:border-box}
:root{
  --bg:#f5f7f9; --panel:#ffffff; --ink:#0f2233; --sub:#5c6b79; --faint:#8a97a3;
  --line:#e6ebf0; --line2:#eef2f5; --brand:#0e9c8f; --brand-d:#0b7d73; --brand-l:#e6f6f4;
  --accent:#f0a020; --radius:14px; --radius-s:10px;
  --sh-sm:0 1px 2px rgba(15,34,51,.06),0 1px 3px rgba(15,34,51,.05);
  --sh:0 4px 16px rgba(15,34,51,.08); --sh-lg:0 16px 48px rgba(15,34,51,.14);
  --maxw:1200px;
  font-synthesis-weight:none;
}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800;letter-spacing:-.01em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;border:none;cursor:pointer;
  font-family:inherit;font-size:14px;font-weight:700;border-radius:999px;padding:11px 22px;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-d)}
.btn-lg{padding:14px 30px;font-size:15px}
.btn-sm{padding:8px 14px;font-size:13px}
.btn:disabled{opacity:.55;cursor:default;transform:none;box-shadow:none}

/* ---------- 顶栏 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}
.logo .mark{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#0e7490);display:grid;place-items:center;color:#fff;flex:none}
.logo small{display:block;font-size:10px;font-weight:600;color:var(--faint);letter-spacing:.08em;margin-top:-2px}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{font-size:14px;font-weight:600;color:var(--sub)}
.nav-links a:hover{color:var(--ink)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}

/* ---------- 落地页 ---------- */
.hero{padding:72px 0 56px;text-align:center;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(70% 55% at 50% -8%,rgba(14,156,143,.16),transparent 70%),
  radial-gradient(40% 40% at 85% 20%,rgba(240,160,32,.10),transparent 70%);z-index:-1}
.hero .eyebrow{display:inline-flex;align-items:center;gap:7px;background:var(--brand-l);color:var(--brand-d);
  font-weight:700;font-size:13px;padding:6px 14px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:clamp(30px,5vw,52px);letter-spacing:-.02em;max-width:900px;margin:0 auto 20px}
.hero h1 .g{background:linear-gradient(120deg,var(--brand),#0e7490);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,2.2vw,20px);color:var(--sub);max-width:640px;margin:0 auto 32px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:16px;font-size:13px;color:var(--faint)}

.showcase{display:flex;gap:20px;justify-content:center;margin:52px auto 0;max-width:1000px;flex-wrap:wrap;perspective:1400px}
.showcase .sc{width:220px;border-radius:12px;overflow:hidden;box-shadow:var(--sh-lg);background:#fff;border:1px solid var(--line);
  transition:.35s;transform:rotateY(0)}
.showcase .sc:nth-child(odd){transform:translateY(14px)}
.showcase .sc:hover{transform:translateY(-6px) scale(1.03)}
.showcase .sc svg{display:block;width:100%;height:auto}

.section{padding:64px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 44px}
.section-head .k{color:var(--brand-d);font-weight:800;font-size:13px;letter-spacing:.1em;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3.4vw,36px);margin:10px 0 12px}
.section-head p{color:var(--sub);font-size:16px}
.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--sh-sm);transition:.2s}
.card:hover{box-shadow:var(--sh);transform:translateY(-2px);border-color:#dbe6ea}
.card .ic{width:44px;height:44px;border-radius:11px;background:var(--brand-l);color:var(--brand-d);display:grid;place-items:center;margin-bottom:16px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--sub);font-size:14px;margin:0}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:22px;width:34px;height:34px;border-radius:50%;
  background:var(--brand);color:#fff;font-weight:800;display:grid;place-items:center;font-size:15px;box-shadow:var(--sh)}
.step h3{font-size:16px;margin:12px 0 8px}
.step p{color:var(--sub);font-size:13.5px;margin:0}

.cta-band{background:linear-gradient(120deg,#0b7d73,#0e7490);color:#fff;border-radius:22px;padding:56px 40px;text-align:center;margin:20px auto}
.cta-band h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:14px}
.cta-band p{opacity:.9;max-width:560px;margin:0 auto 26px;font-size:16px}
.cta-band .btn-primary{background:#fff;color:var(--brand-d)}
.cta-band .btn-primary:hover{background:#f0fdfa}

.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:1000px;margin:0 auto}
.price{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;position:relative}
.price.feat{border-color:var(--brand);box-shadow:var(--sh)}
.price .tag{position:absolute;top:-12px;right:22px;background:var(--brand);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.price h3{font-size:18px;margin-bottom:6px}
.price .amt{font-size:36px;font-weight:800;margin:12px 0}
.price .amt small{font-size:14px;color:var(--faint);font-weight:600}
.price ul{list-style:none;padding:0;margin:18px 0 24px}
.price li{display:flex;gap:9px;align-items:flex-start;color:var(--sub);font-size:14px;padding:6px 0}
.price li svg{flex:none;color:var(--brand);margin-top:3px}

.foot{background:#0f2233;color:#9fb0bd;padding:40px 0;font-size:14px}
.foot-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot a{color:#cdd8e0}.foot a:hover{color:#fff}

/* ---------- 生成器 studio ---------- */
.studio{display:grid;grid-template-columns:400px 1fr;height:calc(100vh - 57px);overflow:hidden}
.panel{overflow-y:auto;border-right:1px solid var(--line);background:#fff;padding:0 0 40px}
.panel::-webkit-scrollbar{width:9px}.panel::-webkit-scrollbar-thumb{background:#d4dde3;border-radius:9px}
.stage{position:relative;background:#eef1f4;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:28px}
.stage-inner{position:relative}
.paper{background:#fff;box-shadow:var(--sh-lg);transform-origin:top center}
.paper svg{display:block}

.p-sec{border-bottom:8px solid var(--bg)}
.p-sec>h4{margin:0;padding:16px 20px 0;font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--faint);text-transform:uppercase;display:flex;align-items:center;gap:8px}
.p-body{padding:14px 20px 20px}
.field{margin-bottom:14px}
.field:last-child{margin-bottom:0}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--sub);margin-bottom:6px}
.field .hint{font-weight:400;color:var(--faint);font-size:11px}
input[type=text],textarea,.inp{width:100%;border:1px solid var(--line);border-radius:9px;padding:9px 11px;font-size:13.5px;
  font-family:inherit;color:var(--ink);background:#fff;transition:.15s}
textarea{resize:vertical;min-height:62px;line-height:1.5}
input:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}

/* 模板选择 */
.tpl-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.tpl{border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;cursor:pointer;transition:.15s;background:#fff}
.tpl:hover{border-color:#bcd}
.tpl.on{border-color:var(--brand);background:var(--brand-l)}
.tpl b{display:block;font-size:13.5px;font-weight:700}
.tpl span{font-size:11px;color:var(--faint)}

/* 主题色 */
.sw-row{display:flex;flex-wrap:wrap;gap:8px}
.sw{width:30px;height:30px;border-radius:8px;cursor:pointer;border:2px solid #fff;box-shadow:0 0 0 1px var(--line);transition:.12s}
.sw:hover{transform:scale(1.1)}
.sw.on{box-shadow:0 0 0 2px var(--brand),0 0 0 4px var(--brand-l)}
.color-custom{display:flex;align-items:center;gap:8px;margin-top:10px}
.color-custom input[type=color]{width:38px;height:32px;padding:0;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}

/* AI 生成盒 */
.ai-box{margin:14px 20px 0;background:linear-gradient(135deg,#0b7d73,#0e7490);border-radius:12px;padding:14px}
.ai-box h4{color:#fff;font-size:13px;margin-bottom:4px;display:flex;align-items:center;gap:6px}
.ai-box p{color:rgba(255,255,255,.82);font-size:11.5px;margin:0 0 10px}
.ai-box textarea{border:none;margin-bottom:8px}
.ai-box .btn{width:100%;background:#fff;color:var(--brand-d)}
.ai-box .btn:hover{background:#f0fdfa}
.ai-msg{font-size:12px;margin-top:8px;color:#fff;min-height:0}
.ai-msg.err{color:#ffe0dc}

/* 列表 / 成对编辑 */
.rows{display:flex;flex-direction:column;gap:8px}
.row{display:flex;gap:6px;align-items:flex-start}
.row .grow{flex:1;display:flex;flex-direction:column;gap:5px}
.row .del{flex:none;width:30px;height:34px;border:1px solid var(--line);background:#fff;border-radius:8px;color:var(--faint);cursor:pointer;font-size:16px;line-height:1}
.row .del:hover{border-color:#e88;color:#d55;background:#fff5f5}
.add-row{margin-top:8px;background:var(--brand-l);color:var(--brand-d);border:1px dashed #9dd;border-radius:8px;padding:8px;width:100%;
  font-size:12.5px;font-weight:700;cursor:pointer;font-family:inherit}
.add-row:hover{background:#d8f0ec}

/* 上传 */
.upload{display:flex;align-items:center;gap:10px}
.upload .prev{width:52px;height:52px;border-radius:9px;border:1px solid var(--line);background:#fafcfd;object-fit:contain;flex:none}
.upload-btn{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:12.5px;font-weight:700;cursor:pointer;color:var(--sub);font-family:inherit}
.upload-btn:hover{border-color:var(--brand);color:var(--brand-d)}
.upload .x{font-size:12px;color:var(--faint);cursor:pointer}
.upload .x:hover{color:#d55}

/* 预览工具条 */
.toolbar{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#fff;border-bottom:1px solid var(--line);flex-wrap:wrap}
.toolbar .sp{flex:1}
.zoom{display:flex;align-items:center;gap:4px;color:var(--sub);font-size:12px}
.zoom button{width:26px;height:26px;border:1px solid var(--line);background:#fff;border-radius:7px;cursor:pointer;font-size:15px;color:var(--sub)}
.zoom button:hover{border-color:var(--brand)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:none;background:#fff;padding:7px 12px;font-size:12.5px;font-weight:700;cursor:pointer;color:var(--sub);font-family:inherit;border-right:1px solid var(--line)}
.seg button:last-child{border-right:none}
.seg button:hover{background:var(--brand-l);color:var(--brand-d)}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:#0f2233;color:#fff;
  padding:11px 20px;border-radius:10px;font-size:13.5px;font-weight:600;box-shadow:var(--sh-lg);opacity:0;pointer-events:none;transition:.25s;z-index:200}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{background:#b3261e}

.pill-tag{display:inline-block;background:var(--brand-l);color:var(--brand-d);font-size:11px;font-weight:700;padding:2px 9px;border-radius:999px}

/* 响应式 */
@media (max-width:920px){
  .grid3,.grid4,.steps,.pricing{grid-template-columns:1fr 1fr}
  .studio{grid-template-columns:1fr;height:auto}
  .panel{border-right:none;border-bottom:1px solid var(--line);max-height:none;order:2}
  .stage{order:1;position:sticky;top:57px;z-index:10;max-height:52vh;padding:16px}
  .nav-links{display:none}
}
@media (max-width:560px){
  .grid3,.grid4,.steps,.pricing,.tpl-grid{grid-template-columns:1fr}
  .showcase .sc{width:150px}
  .hero{padding:48px 0 36px}
}