/* ===========================================================
   好问卷 · app.css
   =========================================================== */
:root{
  --bg:#f5f6f8;
  --card:#fff;
  --ink:#111827;
  --ink2:#374151;
  --dim:#6b7280;
  --line:#e5e7eb;
  --line2:#d1d5db;
  --red:#e0122c;
  --red-d:#b70e23;
  --blue:#1d4ed8;
  --green:#16a34a;
  --r:12px;
  --shadow:0 2px 8px rgba(17,24,39,.06),0 12px 32px rgba(17,24,39,.06);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.65;
  -webkit-font-smoothing:antialiased;min-height:100vh}
a{color:var(--blue);text-decoration:none}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
img,svg{display:block;max-width:100%}
::selection{background:var(--red);color:#fff}

/* ---------- 布局 ---------- */
.wrap{max-width:920px;margin:0 auto;padding:0 18px}
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
.topbar-in{max-width:920px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:12px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:16px;color:var(--ink)}
.logo i{width:32px;height:32px;border-radius:9px;background:linear-gradient(145deg,#e0122c,#8b0b1c);
  display:grid;place-items:center;flex-shrink:0;box-shadow:0 6px 16px rgba(224,18,44,.28)}
.logo i svg{width:18px;height:18px}
.logo small{display:block;font-size:9px;letter-spacing:.2em;color:var(--dim);font-weight:600}
.topbar .sp{flex:1}
.topbar a.ghost{font-size:12.5px;color:var(--dim);border:1px solid var(--line);padding:6px 11px;border-radius:999px}

/* ---------- 首页 ---------- */
.hero{padding:54px 0 34px;text-align:center}
.hero h1{font-size:clamp(30px,5.4vw,46px);font-weight:900;letter-spacing:-.03em;line-height:1.1}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p{margin:14px auto 0;max-width:52ch;color:var(--dim);font-size:14.5px;line-height:1.8}
.hero .big{margin-top:26px;display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 34px;
  border-radius:14px;border:0;background:linear-gradient(120deg,var(--red),#a80d21);color:#fff;
  font-size:17px;font-weight:800;box-shadow:0 12px 28px rgba(224,18,44,.3);transition:.2s}
.hero .big:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(224,18,44,.38)}
.hero .big svg{width:20px;height:20px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.pad{padding:22px}
.sec{margin:18px 0}
.sec-title{font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--ink2);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.sec-title b{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:6px;background:#fef2f2;
  color:var(--red);font-size:11px}

/* 输入 */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink2);margin-bottom:6px}
.input,textarea.input{width:100%;border:1px solid var(--line2);border-radius:10px;padding:11px 13px;
  font-size:14.5px;background:#fff;outline:none;transition:.18s}
.input:focus,textarea.input:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(224,18,44,.1)}
textarea.input{resize:vertical;min-height:72px;line-height:1.7}

/* 选项卡 */
.tabs{display:flex;gap:8px;background:#f3f4f6;padding:4px;border-radius:11px;margin-bottom:16px}
.tabs button{flex:1;height:38px;border-radius:8px;border:0;background:none;font-size:13.5px;font-weight:700;color:var(--dim)}
.tabs button.on{background:#fff;color:var(--ink);box-shadow:0 1px 4px rgba(0,0,0,.08)}

/* 上传区 */
.drop{border:2px dashed var(--line2);border-radius:12px;padding:30px 18px;text-align:center;background:#fafafa;
  transition:.2s;cursor:pointer}
.drop:hover,.drop.over{border-color:var(--red);background:#fff5f6}
.drop .ico{width:46px;height:46px;margin:0 auto 10px;border-radius:13px;background:#fef2f2;display:grid;place-items:center}
.drop .ico svg{width:23px;height:23px;color:var(--red)}
.drop b{display:block;font-size:14.5px}
.drop span{display:block;font-size:12px;color:var(--dim);margin-top:5px}
.drop input{display:none}
.hintline{font-size:11.5px;color:var(--dim);margin-top:10px;line-height:1.7}

/* 题目编辑 */
.qlist{display:flex;flex-direction:column;gap:12px}
.qitem{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}
.qhead{display:flex;align-items:center;gap:8px;margin-bottom:9px}
.qno{width:24px;height:24px;border-radius:7px;background:#eef2ff;color:#3730a3;font-size:12px;font-weight:800;
  display:grid;place-items:center;flex-shrink:0}
.qhead .type{border:1px solid var(--line2);border-radius:7px;padding:4px 7px;font-size:12px;background:#fff}
.qhead .del{margin-left:auto;color:var(--dim);border:1px solid var(--line);border-radius:7px;padding:4px 9px;font-size:12px}
.qhead .del:hover{color:var(--red);border-color:var(--red)}
.opts{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.opt{display:flex;align-items:center;gap:8px}
.opt .k{width:22px;height:22px;border-radius:6px;background:#f3f4f6;color:var(--dim);font-size:11px;
  display:grid;place-items:center;font-weight:800;flex-shrink:0}
.opt .input{flex:1;padding:8px 10px;font-size:13.5px}
.opt .x{width:26px;height:26px;border:1px solid var(--line);border-radius:6px;color:var(--dim);background:#fff;flex-shrink:0}
.opt .x:hover{color:var(--red);border-color:var(--red)}
.addopt{margin-top:8px;font-size:12.5px;color:var(--blue);background:none;border:0;padding:2px 0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:10px;border:1px solid var(--line2);background:#fff;font-size:14px;font-weight:700;color:var(--ink);transition:.18s}
.btn:hover{border-color:var(--ink2)}
.btn.primary{background:linear-gradient(120deg,var(--red),#a80d21);color:#fff;border:0;box-shadow:0 8px 20px rgba(224,18,44,.24)}
.btn.primary:hover{transform:translateY(-1px)}
.btn.block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}
.btn svg{width:16px;height:16px}

.actions{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.actions .btn{flex:1;min-width:150px}

/* 结果面板 */
.result{border:1px solid #bbf7d0;background:#f0fdf4;border-radius:12px;padding:18px;margin-top:16px}
.result h3{font-size:15px;font-weight:800;color:#166534;display:flex;align-items:center;gap:8px}
.result .row{display:flex;gap:8px;margin-top:12px;align-items:center;flex-wrap:wrap}
.result .label{font-size:12px;color:#166534;width:64px;flex-shrink:0;font-weight:700}
.result .val{flex:1;min-width:200px;background:#fff;border:1px solid #bbf7d0;border-radius:8px;padding:9px 11px;
  font-size:13px;word-break:break-all;font-family:ui-monospace,Menlo,monospace}
.result .copy{height:36px;padding:0 12px;font-size:12.5px;border-radius:8px;border:1px solid #86efac;background:#fff;color:#166534;font-weight:700}
.code-big{font-size:26px;letter-spacing:.18em;font-weight:900;color:#14532d;font-family:ui-monospace,Menlo,monospace}

/* 查询 */
.lookup{display:flex;gap:9px;flex-wrap:wrap}
.lookup .input{flex:1;min-width:200px;letter-spacing:.1em;text-transform:uppercase;font-family:ui-monospace,Menlo,monospace}
.msg{font-size:13px;margin-top:10px;padding:9px 12px;border-radius:8px;display:none}
.msg.err{display:block;background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.msg.ok{display:block;background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}

/* 步骤说明 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0 40px}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.step b{display:block;font-size:13.5px;margin-bottom:5px}
.step p{font-size:12px;color:var(--dim);line-height:1.7}
.step em{font-style:normal;display:inline-block;font-size:11px;font-weight:800;color:var(--red);
  background:#fef2f2;border-radius:6px;padding:2px 7px;margin-bottom:8px}

/* ---------- 答题页 ---------- */
.survey-head{padding:30px 0 10px}
.survey-head h1{font-size:clamp(22px,4vw,30px);font-weight:900;letter-spacing:-.02em;line-height:1.25}
.survey-head p{margin-top:10px;color:var(--dim);font-size:13.5px;line-height:1.8;white-space:pre-wrap}
.meta-line{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;font-size:11.5px;color:var(--dim)}
.q-block{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px}
.q-block .qt{font-size:15.5px;font-weight:700;line-height:1.55;margin-bottom:12px;display:flex;gap:8px}
.q-block .qt i{font-style:normal;color:var(--red);font-weight:800;flex-shrink:0}
.q-block .qt .req{color:var(--red);font-size:13px;margin-left:2px}
.choice{display:flex;align-items:flex-start;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:9px;
  margin-bottom:7px;cursor:pointer;transition:.15s;background:#fff}
.choice:hover{border-color:var(--line2);background:#fafafa}
.choice input{margin-top:3px;accent-color:var(--red);width:16px;height:16px;flex-shrink:0}
.choice span{font-size:14px;line-height:1.55}
.choice.sel{border-color:var(--red);background:#fff5f6}
.q-block textarea{width:100%;min-height:90px;border:1px solid var(--line2);border-radius:9px;padding:11px;
  font-size:14px;line-height:1.7;outline:none;resize:vertical}
.q-block textarea:focus{border-color:var(--red);box-shadow:0 0 0 3px rgba(224,18,44,.08)}

.done{text-align:center;padding:70px 20px}
.done .ico{width:64px;height:64px;border-radius:50%;background:#f0fdf4;display:grid;place-items:center;margin:0 auto 16px}
.done .ico svg{width:32px;height:32px;color:var(--green)}
.done h2{font-size:22px;font-weight:900}
.done p{color:var(--dim);font-size:13.5px;margin-top:8px}

/* ---------- 结果页 ---------- */
.stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px}
.stat b{display:block;font-size:26px;font-weight:900;letter-spacing:-.02em;line-height:1.1}
.stat span{display:block;font-size:11.5px;color:var(--dim);margin-top:4px}
.rq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:12px}
.rq h3{font-size:15px;font-weight:700;line-height:1.55;margin-bottom:4px}
.rq .sub{font-size:11.5px;color:var(--dim);margin-bottom:12px}
.bar-row{margin-bottom:9px}
.bar-top{display:flex;justify-content:space-between;font-size:12.5px;margin-bottom:4px;gap:10px}
.bar-top b{font-weight:700}
.bar-top span{color:var(--dim);white-space:nowrap}
.bar{height:9px;background:#f1f2f4;border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,#e0122c,#f87171);border-radius:99px;
  transition:width .6s cubic-bezier(.2,.7,.2,1)}
.text-answers{display:flex;flex-direction:column;gap:7px;max-height:320px;overflow:auto}
.text-answers div{background:#f9fafb;border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-size:13px;line-height:1.65}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:12.5px;min-width:640px}
th{background:#f9fafb;text-align:left;font-weight:700;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;position:sticky;top:0}
td{padding:9px 12px;border-bottom:1px solid #f3f4f6;vertical-align:top;max-width:280px}
tr:last-child td{border-bottom:0}
.tag-type{display:inline-block;font-size:10.5px;color:#6b7280;border:1px solid var(--line);border-radius:5px;padding:1px 5px;margin-left:6px}

/* toast */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:#111827;color:#fff;
  padding:11px 18px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:99;max-width:86vw}
.toast.on{opacity:1;transform:translate(-50%,0)}

@media (max-width:640px){
  .hero{padding:38px 0 24px}
  .pad{padding:16px}
  .steps{grid-template-columns:1fr}
  .stat-cards{grid-template-columns:1fr 1fr}
  .stat-cards .stat:first-child{grid-column:1/-1}
  .actions .btn{min-width:120px}
  .result .label{width:auto}
}