/* ═══════════ 邀请函 SaaS · 用户端样式 ═══════════ */
:root{
  --brand:#b0322a; --brand-2:#8c1f16; --gold:#c9a25a; --gold-2:#a8843f;
  --bg:#f6f4f0; --card:#ffffff; --ink:#2c2724; --ink-2:#6f665e; --ink-3:#a49a90;
  --line:#e8e2d9; --ok:#2f8f5b; --warn:#c47f16; --danger:#c0392b;
  --radius:16px; --shadow:0 10px 30px rgba(60,40,20,.08);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--ink);background:#fff;
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;outline:none}
input:focus,textarea:focus,select:focus{border-color:var(--gold)}
textarea{resize:vertical;line-height:1.7}
[hidden]{display:none !important}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:12px;height:60px}
.logo{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.02em}
.logo i{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-2));color:#ffe9b8;font-style:normal;font-size:16px}
.spacer{flex:1}
.who{color:var(--ink-2);font-size:13px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 16px;border-radius:10px;
  background:#fff;border:1px solid var(--line);color:var(--ink);transition:.18s;white-space:nowrap}
.btn:hover{border-color:var(--gold);color:var(--brand)}
.btn.primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));border-color:transparent;color:#fff;
  box-shadow:0 8px 20px rgba(150,40,25,.24)}
.btn.primary:hover{color:#fff;opacity:.94}
.btn.ghost{background:transparent}
.btn.gold{background:linear-gradient(120deg,#d8b26a,#b58c3f);border-color:transparent;color:#33270f;font-weight:600}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.section-title{font-size:17px;font-weight:700;margin:26px 0 12px;display:flex;align-items:center;gap:8px}
.section-title small{font-weight:400;color:var(--ink-3);font-size:12px}
.muted{color:var(--ink-2)}
.tiny{font-size:12.5px;color:var(--ink-3)}

/* 认证 */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(900px 420px at 50% -10%,rgba(201,162,90,.16),transparent 60%),var(--bg)}
.auth-card{width:min(430px,100%);padding:28px 24px 24px;position:relative;overflow:hidden}
.auth-card:before{content:"";position:absolute;inset:0 0 auto;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--gold))}
.auth-card h1{font-size:20px;margin-bottom:4px}
.tabs{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:11px;margin:18px 0 16px}
.tabs button{flex:1;padding:8px;border-radius:8px;color:var(--ink-2);font-weight:600}
.tabs button.on{background:#fff;color:var(--brand);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.hint{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.divider{display:flex;align-items:center;gap:10px;color:var(--ink-3);font-size:12px;margin:16px 0}
.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--line)}
.err{color:var(--danger);font-size:13px;margin-top:8px;min-height:18px}

/* 任务列表 */
.hero{background:linear-gradient(140deg,#3a1f1a,#7a2b20 60%,#8c3a1e);color:#fff8ec;padding:34px 0 60px;
  border-radius:0 0 26px 26px}
.hero h2{font-size:24px;letter-spacing:.02em}
.hero p{color:rgba(255,240,220,.78);margin-top:6px;font-size:14px}
.task-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));margin-top:-34px}
.task-card{padding:16px;display:flex;flex-direction:column;gap:10px}
.task-head{display:flex;align-items:flex-start;gap:10px}
.task-name{font-weight:700;font-size:16px;flex:1}
.badge{font-size:11.5px;padding:3px 9px;border-radius:999px;background:var(--bg);color:var(--ink-2);white-space:nowrap}
.badge.ok{background:rgba(47,143,91,.12);color:var(--ok)}
.badge.warn{background:rgba(196,127,22,.14);color:var(--warn)}
.task-meta{display:flex;gap:14px;font-size:13px;color:var(--ink-2)}
.task-actions{display:flex;gap:8px;flex-wrap:wrap}
.swatch{width:44px;height:44px;border-radius:10px;flex:none;border:1px solid rgba(0,0,0,.06)}

/* 弹层 */
.modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:18px;
  background:rgba(28,20,16,.5);backdrop-filter:blur(3px)}
.modal-card{background:#fff;border-radius:18px;width:min(680px,100%);max-height:88vh;overflow:auto;
  padding:22px;box-shadow:0 30px 80px rgba(0,0,0,.3)}
.modal-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.modal-head h3{font-size:18px;flex:1}
.close{width:32px;height:32px;border-radius:50%;background:var(--bg);color:var(--ink-2);font-size:16px}

/* 类型 / 模版选择 */
.type-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.type-card{padding:14px;border:1.5px solid var(--line);border-radius:14px;text-align:left;background:#fff;transition:.18s}
.type-card:hover{border-color:var(--gold);transform:translateY(-2px)}
.type-card.on{border-color:var(--brand);box-shadow:0 8px 22px rgba(150,40,25,.12)}
.type-card b{display:block;font-size:15px;margin-bottom:4px}
.type-card i{font-style:normal;font-size:22px;color:var(--gold-2)}
.tpl-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));margin-top:12px}
.tpl-card{border:1.5px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;text-align:left;transition:.18s}
.tpl-card:hover{transform:translateY(-2px);border-color:var(--gold)}
.tpl-card.on{border-color:var(--brand);box-shadow:0 8px 22px rgba(150,40,25,.12)}
.tpl-prev{height:104px;display:flex;align-items:center;justify-content:center;color:#fff;font-family:var(--font);
  font-size:26px;font-weight:700;letter-spacing:.2em;position:relative;overflow:hidden}
.tpl-prev span{position:relative;z-index:2}
.tpl-prev:after{content:"";position:absolute;inset:0;background:radial-gradient(60% 80% at 50% 0,rgba(255,255,255,.3),transparent 70%)}
.tpl-body{padding:10px 12px}
.tpl-body b{font-size:14px}
.tpl-body p{font-size:12.5px;color:var(--ink-3);margin-top:2px}

/* 工作台 */
.tabs2{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);margin:0 -18px 18px;padding:0 18px}
.tabs2 button{padding:12px 14px;color:var(--ink-2);font-weight:600;white-space:nowrap;border-bottom:2px solid transparent}
.tabs2 button.on{color:var(--brand);border-color:var(--brand)}
.lock{padding:26px;text-align:center;background:linear-gradient(160deg,#fffaf1,#fff)}
.lock .lockicon{font-size:34px;margin-bottom:8px}
.tier-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));margin-top:16px}
.tier{padding:16px;border:1.5px solid var(--line);border-radius:14px;background:#fff;text-align:center;transition:.18s}
.tier:hover,.tier.on{border-color:var(--brand);box-shadow:0 8px 22px rgba(150,40,25,.12)}
.tier b{font-size:22px;color:var(--brand)}
.tier .p{font-size:20px;font-weight:700;margin-top:6px}
.tier small{color:var(--ink-3)}
.pay-qr{text-align:center;padding:10px}
.pay-qr img{width:220px;height:220px;margin:0 auto;border:1px solid var(--line);border-radius:12px;background:#fff}
.list{display:flex;flex-direction:column;gap:8px}
.row{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff}
.row .grow{flex:1;min-width:0}
.row b{font-weight:600}
.row .sub{font-size:12.5px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thumbs{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
.thumb{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:#fff;aspect-ratio:3/4}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .ops{position:absolute;left:0;right:0;bottom:0;display:flex;gap:4px;padding:6px;background:linear-gradient(transparent,rgba(0,0,0,.55))}
.thumb .ops button{flex:1;font-size:11.5px;padding:4px;border-radius:6px;background:rgba(255,255,255,.9);color:#333}
.thumb .cover-tag{position:absolute;left:6px;top:6px;background:var(--gold);color:#33270f;font-size:11px;
  padding:2px 7px;border-radius:999px;font-weight:600}
.form-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.form-grid .full{grid-column:1/-1}
.check{display:flex;align-items:center;gap:8px;color:var(--ink-2)}
.check input{width:auto}
.frame-pick{border:1px dashed var(--line);border-radius:12px;padding:16px;text-align:center;color:var(--ink-3)}
.preview-frame{width:100%;height:70vh;border:1px solid var(--line);border-radius:14px;background:#fff}
.toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);z-index:120;
  background:rgba(30,22,18,.92);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;opacity:0;
  transition:.25s;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%)}
.hero-cta{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.stat{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 0}
.stat div{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:6px 12px;font-size:13px}
.empty{padding:30px;text-align:center;color:var(--ink-3)}
@media (max-width:640px){
  .hero{padding:22px 0 48px}.hero h2{font-size:20px}
  .modal-card{padding:18px;border-radius:16px}
}