/* ============================================================
   资源分类下钻 · 样式
   设计变量复用 zhibi-ai-web-vue/src/styles/global.css（深色科研科技风）
   差异：本页是桌面优先的知识库工具页，容器宽度放宽到 1280px
   ============================================================ */

:root {
  --bg: #070b14;
  --bg-soft: #0b1220;
  --bg-2: #0b1522;
  --card: #0e1626;
  --card-2: #131d31;
  --line: rgba(148, 163, 184, 0.13);
  --line-strong: rgba(148, 163, 184, 0.24);
  --text: #e8edf6;
  --text-1: #c6d3e6;
  --text-2: #93a4bd;
  --text-3: #5c6f8c;
  --primary: #3d9bff;
  --cyan: #22d3ee;
  --grad: linear-gradient(135deg, #3d9bff 0%, #22d3ee 100%);
  --gold: #f5c451;
  --danger: #f87171;
  --success: #34d399;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --header-bg: rgba(7, 11, 20, 0.86);
  --track: rgba(148, 163, 184, 0.10);
  --body-grad:
    radial-gradient(900px 500px at 85% -10%, rgba(61, 155, 255, 0.10), transparent 60%),
    radial-gradient(700px 420px at -10% 30%, rgba(34, 211, 238, 0.07), transparent 60%),
    var(--bg);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI",
    "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
}

[data-theme="light"] {
  --bg: #eef2f7;
  --bg-soft: #fff;
  --bg-2: #f3f6fa;
  --card: #fff;
  --card-2: #f6f9fc;
  --line: rgba(30, 46, 70, 0.12);
  --line-strong: rgba(30, 46, 70, 0.22);
  --text: #16233a;
  --text-1: #34445e;
  --text-2: #5a6c87;
  --text-3: #8b98ad;
  --primary: #2f7fe0;
  --cyan: #0ba5b8;
  --grad: linear-gradient(135deg, #2f7fe0 0%, #0ba5b8 100%);
  --gold: #c78b13;
  --danger: #dc4b4b;
  --success: #12996b;
  --shadow: 0 6px 20px rgba(20, 40, 70, 0.10);
  --header-bg: rgba(255, 255, 255, 0.9);
  --track: rgba(30, 46, 70, 0.08);
  --body-grad:
    radial-gradient(900px 500px at 85% -10%, rgba(47, 127, 224, 0.08), transparent 60%),
    var(--bg);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--body-grad);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .92em; }

/* ---------- 顶栏 ---------- */
.hd {
  position: sticky; top: 0; z-index: 30;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.hd-in {
  max-width: 1280px; margin: 0 auto; padding: 0 20px;
  height: 60px; display: flex; align-items: center; gap: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; cursor: pointer; flex: 0 0 auto; }
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
  display: grid; place-items: center; color: #04121f; font-weight: 700; font-size: 15px;
}
.brand b { font-size: 15px; font-weight: 600; }
.brand small { display: block; color: var(--text-3); font-size: 11px; line-height: 1.2; }
.sp { flex: 1; }

.seg {
  display: flex; gap: 2px; padding: 3px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--card-2);
}
.seg button {
  padding: 6px 13px; border-radius: 8px; font-size: 12.5px;
  color: var(--text-2); white-space: nowrap;
}
.seg button.on { background: var(--grad); color: #04121f; font-weight: 600; }
.seg.sm button { padding: 5px 10px; font-size: 12px; }

.btn {
  padding: 7px 13px; border-radius: 9px; border: 1px solid var(--line-strong);
  font-size: 12.5px; color: var(--text-1); background: var(--card-2);
  display: inline-flex; align-items: center; gap: 6px; transition: all .18s;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.pri { background: var(--grad); color: #04121f; border-color: transparent; font-weight: 600; }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ---------- 布局 ---------- */
.wrap { max-width: 1280px; margin: 0 auto; padding: 18px 20px 40px; }
.loading { text-align: center; color: var(--text-2); padding: 60px 0; }

.crumb { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; margin-bottom: 14px; font-size: 13px; }
.crumb a { color: var(--text-2); cursor: pointer; }
.crumb a:hover { color: var(--primary); }
.crumb .sep { color: var(--text-3); }
.crumb b { color: var(--text); }

/* ---------- 页头 ---------- */
.phead { margin-bottom: 16px; }
.phead h1 { font-size: 22px; font-weight: 700; margin: 0 0 6px; letter-spacing: .3px; }
.phead p { margin: 0; color: var(--text-2); font-size: 12.5px; line-height: 1.7; }

.stats { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 10px; }
.stat { display: flex; flex-direction: column; }
.stat b { font-size: 20px; font-variant-numeric: tabular-nums; letter-spacing: -.3px; }
.stat span { font-size: 11.5px; color: var(--text-3); }
.stat.accent b { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ---------- 提示条 ---------- */
.note {
  border-left: 3px solid var(--gold);
  background: rgba(245, 196, 81, .07);
  padding: 10px 14px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12.5px; color: var(--text-1); margin-bottom: 14px; line-height: 1.75;
}
.note b { color: var(--gold); }
.note.info { border-color: var(--primary); background: rgba(61, 155, 255, .07); }
.note.info b { color: var(--primary); }
.note.warn { border-color: var(--danger); background: rgba(248, 113, 113, .07); }
.note.warn b { color: var(--danger); }

.ovbox {
  border: 1px solid rgba(34, 211, 238, .3);
  background: rgba(34, 211, 238, .055);
  border-radius: var(--radius-sm); padding: 11px 14px;
  font-size: 12.5px; color: var(--text-1); margin-bottom: 14px; line-height: 1.75;
}
.ovbox b { color: var(--cyan); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); gap: 13px; }
.grid.k3 { grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); }

/* 首页：入口卡片固定三列铺满容器（auto-fill 会留空轨道）。
   容器宽度与其他页面一致（.wrap 1280px），不单独放宽。 */
.grid.home-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1100px) {
  .grid.home-grid { grid-template-columns: 1fr; }
}

.cd {
  background: linear-gradient(180deg, var(--card-2), var(--card));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 15px 16px; cursor: pointer; position: relative;
  transition: all .2s; overflow: hidden;
}
.cd:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.cd::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--grad); opacity: 0; transition: opacity .2s;
}
.cd:hover::before { opacity: 1; }
.cd.fb { border-color: rgba(52, 211, 153, .3); }
.cd.fb::before { background: var(--success); opacity: .55; }
.cd.wn { border-color: rgba(245, 196, 81, .28); }
.cd.wn::before { background: var(--gold); opacity: .55; }

.cd-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.cd-name { font-size: 15px; font-weight: 600; letter-spacing: .2px; }
.cd-cnt {
  font-size: 19px; font-weight: 700; font-variant-numeric: tabular-nums;
  text-align: right; white-space: nowrap; flex: 0 0 auto;
}
.cd-cnt small {
  display: block; font-size: 10.5px; font-weight: 400;
  color: var(--text-3); margin-top: 1px; letter-spacing: .2px;
}
.cd-desc { font-size: 12px; color: var(--text-2); margin-top: 8px; line-height: 1.65; }

.bar { height: 3px; border-radius: 2px; background: var(--track); margin-top: 11px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--grad); border-radius: 2px; }

.badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 9px; }
.badge {
  font-size: 10.5px; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--line-strong); color: var(--text-2);
}
.badge.ov { border-color: rgba(245, 196, 81, .4); color: var(--gold); background: rgba(245, 196, 81, .08); }
.badge.fb { border-color: rgba(52, 211, 153, .4); color: var(--success); background: rgba(52, 211, 153, .08); }
.badge.kw { border-color: rgba(34, 211, 238, .4); color: var(--cyan); background: rgba(34, 211, 238, .08); }
.badge.fl { border-color: rgba(61, 155, 255, .4); color: var(--primary); background: rgba(61, 155, 255, .08); }

/* ---------- 表格 ---------- */
.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.tbl th, .tbl td { padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--line); }
.tbl th { color: var(--text-2); font-weight: 600; font-size: 12px; background: var(--card-2); }
.tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl tbody tr:hover { background: rgba(148, 163, 184, .04); }
.tbl .pos { color: var(--gold); }
.tbl .ok { color: var(--success); }

/* ---------- 关键词区 ---------- */
.kwbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 13px; }
.kwlist { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.kw {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 6px 13px; font-size: 12.5px; color: var(--text-1);
  background: var(--card-2); transition: all .16s; user-select: none;
}
.kw:hover { border-color: var(--primary); }
.kw i { font-style: normal; font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.kw.on { border-color: var(--success); background: rgba(52, 211, 153, .12); color: var(--success); font-weight: 600; }
.kw.on i { color: var(--success); }
.kw.ex { border-color: var(--danger); background: rgba(248, 113, 113, .12); color: var(--danger); font-weight: 600; text-decoration: line-through; }
.kw.ex i { color: var(--danger); }
.kw.add { border-style: dashed; cursor: default; }

.kwinput {
  display: flex; gap: 8px; align-items: center; margin-bottom: 14px; flex-wrap: wrap;
}
.kwinput input {
  background: var(--card-2); border: 1px solid var(--line-strong);
  border-radius: 9px; padding: 8px 12px; color: var(--text);
  font-size: 12.5px; outline: none; min-width: 220px; flex: 1; max-width: 380px;
}
.kwinput input:focus { border-color: var(--primary); }

.big {
  display: flex; gap: 26px; align-items: baseline; flex-wrap: wrap;
  padding: 14px 16px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--card-2); margin-bottom: 14px;
}
.big .b1 b { font-size: 27px; font-variant-numeric: tabular-nums; letter-spacing: -.5px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.big .b2 b { font-size: 27px; font-variant-numeric: tabular-nums; color: var(--cyan); }
.big .lbl { font-size: 11.5px; color: var(--text-3); display: block; }
.big .est { font-size: 10.5px; color: var(--text-3); }

/* ---------- 分页 ---------- */
.pager { display: flex; gap: 9px; align-items: center; justify-content: center; margin-top: 16px; font-size: 12.5px; color: var(--text-2); }

/* ---------- 页脚 ---------- */
.ft { max-width: 1280px; margin: 0 auto; padding: 6px 20px 34px; text-align: center; }
.ft p { margin: 3px 0; font-size: 11.5px; color: var(--text-3); line-height: 1.85; }
.ft b { color: var(--text-2); }
.ft-note { color: var(--text-3); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%) translateY(16px);
  background: rgba(16, 24, 40, .96); color: #eef2f7;
  padding: 10px 20px; border-radius: 999px; font-size: 13px;
  opacity: 0; pointer-events: none; transition: all .24s; z-index: 99;
  border: 1px solid rgba(148, 163, 184, .2);
}
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 「全部」查询工具 ---------- */
.cd.q::before { background: linear-gradient(180deg, var(--primary), #7c5cff); }
.cd.q { border-color: color-mix(in srgb, var(--primary) 40%, var(--line)); }
.tagq {
  display: inline-block; margin-left: 8px; padding: 1.5px 7px;
  font-size: 11px; font-weight: 600; border-radius: 999px;
  color: #fff; background: linear-gradient(135deg, var(--primary), #7c5cff);
  vertical-align: 2px;
}
.cd-feat { margin-top: 7px; font-size: 12px; color: var(--text-3); letter-spacing: .3px; }

.qbox {
  margin: 14px 0; padding: 14px 16px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
}
.qrow { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; flex-wrap: wrap; }
.qrow:last-child { margin-bottom: 0; }
.qrow > label {
  flex: 0 0 96px; font-size: 12.5px; font-weight: 600; color: var(--text-2);
}
.qrow input {
  flex: 1 1 260px; min-width: 180px; padding: 8px 11px;
  font-size: 13.5px; color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; outline: none;
}
.qrow input:focus { border-color: var(--primary); }
.qrow input.yr { flex: 0 0 110px; min-width: 90px; }
.qrow .tilde { color: var(--text-3); }
.qchips { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 9px 106px; }
.qhint { font-size: 12.5px; color: var(--text-3); }
.kw .x { font-style: normal; font-size: 11px; opacity: .75; margin-left: 2px; }
.kw:hover .x { opacity: 1; }

/* 来源库 / 类型 选择面板 */
.pool {
  margin-top: 11px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); overflow: hidden;
}
.pool-h {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px; font-size: 12.5px;
  background: var(--bg-2); border-bottom: 1px solid var(--line);
}
.pool-h b { font-size: 13px; }
.pool-h span { color: var(--text-3); }
.pool-h .btn { margin-left: auto; }
.pool-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 1px; background: var(--line); max-height: 340px; overflow-y: auto;
}
.pool-i {
  display: flex; align-items: center; gap: 9px; padding: 7px 11px;
  font-size: 12.5px; background: var(--bg); cursor: pointer;
}
.pool-i:hover { background: var(--bg-2); }
.pool-i.on { background: color-mix(in srgb, var(--primary) 11%, var(--bg)); }
.pool-i input { accent-color: var(--primary); flex: 0 0 auto; }
.pool-i .pk {
  flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pool-i .pn { flex: 0 0 auto; color: var(--text-3); font-variant-numeric: tabular-nums; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .grid, .grid.k3 { grid-template-columns: 1fr; }
  .hd-in { padding: 0 14px; gap: 9px; }
  .brand small { display: none; }
  .wrap { padding: 14px 14px 30px; }
  .big { gap: 18px; }
  .big .b1 b, .big .b2 b { font-size: 22px; }
  .qrow > label { flex: 1 1 100%; }
  .qchips { margin-left: 0; }
  .pool-list { grid-template-columns: 1fr; }
}

/* ---------- 文献详情页 ---------- */
.doclink { color: var(--text-1); cursor: pointer; text-decoration: none; }
.doclink:hover { color: var(--primary); text-decoration: underline; }
.doc-alt { margin: 0 0 12px; color: var(--text-2); font-size: 13px; line-height: 1.7; }
.doc-meta { margin-top: 4px; }
.doc-meta th { text-align: left; color: var(--text-3); font-weight: 500; font-size: 12px; padding: 7px 12px 7px 0; white-space: nowrap; vertical-align: top; }
.doc-meta td { font-size: 12.5px; line-height: 1.65; }
.doc-sum { margin-top: 8px; line-height: 1.75; font-size: 13px; color: var(--text-1); }

/* 封面图区：有图给图，没图给「生成中」占位（含手动重试按钮） */
.doc-photo { margin: 14px 0 6px; }
.dp-img {
  display: block; max-width: 100%; max-height: 460px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--card);
}
.dp-foot { margin-top: 6px; font-size: 12px; }
.dp-foot a { color: var(--primary); }
.dp-hold {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 18px; border: 1px dashed var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card-2), var(--card));
}
.dp-ph { font-size: 22px; opacity: .7; }
.dp-hint { margin: 0; font-size: 12.5px; color: var(--text-2); }
/* 图片拿到了、但文件暂时加载不出来时的温和提示（不挡住 <img>，加载成功会自动移除） */
.dp-warn { margin-top: 8px; font-size: 12px; color: var(--warn, #b26b00); }

/* 远程计数徽标（含 0 也展示） */
.doc-nums { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.dn {
  display: inline-flex; align-items: baseline; gap: 6px;
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); font-size: 12px; color: var(--text-2);
}
.dn b { font-size: 13.5px; color: var(--text-1); }

/* 其余字段折叠区 */
.doc-extra { margin-top: 14px; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 14px; background: var(--card); }
.doc-extra summary { cursor: pointer; font-size: 12.5px; color: var(--text-2); }
.doc-extra summary:hover { color: var(--primary); }
.fk { font-size: 11px; color: var(--text-3); background: transparent; }

/* ---------- 首页 hero ---------- */
.hero {
  display: flex; gap: 26px; align-items: center; justify-content: space-between;
  flex-wrap: wrap; padding: 26px 28px; margin-bottom: 18px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background:
    radial-gradient(600px 260px at 92% 0%, rgba(61, 155, 255, .14), transparent 60%),
    radial-gradient(420px 220px at 8% 100%, rgba(34, 211, 238, .09), transparent 60%),
    linear-gradient(180deg, var(--card-2), var(--card));
  position: relative; overflow: hidden;
}
.hero h1 {
  margin: 0; font-size: 30px; font-weight: 800; letter-spacing: .5px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .sub { margin: 8px 0 0; color: var(--text-2); font-size: 13.5px; letter-spacing: .3px; }
.hero-stats { display: flex; gap: 30px; flex-wrap: wrap; }
.hstat { text-align: right; }
.hstat b {
  display: block; font-size: 24px; font-weight: 800; font-variant-numeric: tabular-nums;
  letter-spacing: -.4px; background: var(--grad);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hstat span { font-size: 11.5px; color: var(--text-3); }

/* ---------- 三步指引 ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 13px; margin-bottom: 18px; }
.step {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 15px 16px; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, var(--card-2), var(--card));
}
.step-n {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 9px; background: var(--grad);
  color: #04121f; font-weight: 800; font-size: 14px; display: grid; place-items: center;
}
.step b { display: block; font-size: 13.5px; margin-bottom: 3px; }
.step p { margin: 0; font-size: 12px; color: var(--text-2); line-height: 1.7; }

/* ---------- 轻提示条（一句话指引，非文档式说明） ---------- */
.tip {
  display: flex; gap: 8px; align-items: baseline;
  font-size: 12px; color: var(--text-3); line-height: 1.7;
  padding: 8px 12px; margin-bottom: 13px;
  border-left: 2px solid var(--line-strong); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(148, 163, 184, .05);
}
.tip b { color: var(--text-2); font-weight: 600; }
.tip .ti { flex: 0 0 auto; }

/* ---------- 入口图标（flex 子项，天然垂直居中，不用 vertical-align） ---------- */
.cd-ico {
  flex: 0 0 auto; display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 11px;
  font-size: 20px; line-height: 1;
  background: linear-gradient(180deg, rgba(61, 155, 255, .18), rgba(34, 211, 238, .10));
  border: 1px solid rgba(61, 155, 255, .28);
}
.phead h1 .cd-ico { width: 34px; height: 34px; font-size: 17px; border-radius: 9px; }

/* ---------- 卡片新布局：icon + 标题块 + 数字 三段式 ---------- */
.cd-head { display: flex; align-items: center; gap: 12px; }
.cd-tt { flex: 1; min-width: 0; }
.cd-name { font-size: 15px; font-weight: 600; letter-spacing: .2px; line-height: 1.35; }
.cd-sub { font-size: 11px; color: var(--text-3); margin-top: 2px; letter-spacing: .2px; }
.cd-head .cd-cnt { text-align: right; }
.phead h1 { display: flex; align-items: center; gap: 10px; }

/* ---------- 站点页脚（参考 zhibi-ai-web-vue：公司 + 备案号） ---------- */
.site-footer {
  max-width: 1280px; margin: 26px auto 0; padding: 16px 20px 30px;
  text-align: center; border-top: 1px solid var(--line);
}
.site-footer p { margin: 4px 0; font-size: 11.5px; color: var(--text-3); line-height: 1.8; }
.site-footer .sf-brand { color: var(--text-2); }
.site-footer .sf-brand b { color: var(--text-1); }
.site-footer a { color: var(--text-2); transition: color .16s; }
.site-footer a:hover { color: var(--primary); }

/* ---------- 入口卡片数字强调（资源总量下置 + 大号渐变数字） ---------- */
.cd-total {
  margin-top: 13px; padding-top: 12px; border-top: 1px dashed var(--line-strong);
  display: flex; align-items: baseline; gap: 10px; justify-content: space-between;
}
.cd-total b {
  font-size: 27px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.5px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.cd-total span { font-size: 11.5px; color: var(--text-3); }
.cd-cnt.big-num {
  font-size: 25px; font-weight: 800; letter-spacing: -.4px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 小屏幕：三步指引强制单列（auto-fit 在 500-760px 区间会挤成两列） */
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
}