/* ==========================================================================
   跨境电商 AI 工作流台 — 设计系统
   证据等级配色严格对应手册标签系统，不得随意改色
   ========================================================================== */

:root {
  --ink:        #14181F;
  --ink-2:      #3A424F;
  --soft:       #6B7482;
  --line:       #E3E7ED;
  --line-2:     #EEF1F5;
  --bg:         #F6F7F9;
  --card:       #FFFFFF;
  --accent:     #C97B4A;

  /* 证据等级 */
  --ev-official:  #1F7A5C;   /* 🟢 官方标准 */
  --ev-research:  #2C5CC5;   /* 🔵 学术研究 */
  --ev-convent:   #B26A00;   /* 🟡 行业惯例 */
  --ev-infer:     #C0392B;   /* 🔴 从业者推断 */
  --ev-editor:    #6B4FBB;   /* ⚫ 编者判断 */
  --ev-fill:      #B26A00;   /* 🟡 待填 */

  --demo:        #C0392B;

  --r-s: 6px;
  --r-m: 10px;
  --r-l: 16px;
  --sh-1: 0 1px 2px rgba(20,24,31,.06), 0 1px 3px rgba(20,24,31,.04);
  --sh-2: 0 4px 16px rgba(20,24,31,.08);
  --sh-3: 0 12px 40px rgba(20,24,31,.14);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0 0 .8em; }
a { color: var(--accent); }

/* ---------- 顶栏 ---------- */
.top {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 24px;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.top .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 16px; }
.top .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--accent); }
.top .sp { flex: 1; }
.top label { font-size: 12px; color: var(--soft); font-weight: 600; }
.top select {
  font: inherit; font-size: 13px; font-weight: 600; color: var(--ink);
  padding: 7px 12px; min-width: 230px;
  border: 1px solid var(--line); border-radius: var(--r-s);
  background: var(--card); cursor: pointer;
}
.top select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- 主体 ---------- */
.wrap { max-width: 1240px; margin: 0 auto; padding: 24px; }

/* ---------- 流水线切换 ---------- */
.flows { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.flow-card {
  position: relative; overflow: hidden; cursor: pointer; text-align: left;
  border: 2px solid var(--line); border-radius: var(--r-l);
  background: var(--card); padding: 0; font: inherit; color: inherit;
  transition: border-color .16s, box-shadow .16s, transform .16s;
}
.flow-card:hover { border-color: var(--ink-2); transform: translateY(-2px); box-shadow: var(--sh-2); }
.flow-card.on { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent); }
.flow-card img { display: block; width: 100%; aspect-ratio: 16/6; object-fit: cover; }
.flow-card .fb { padding: 14px 16px 16px; }
.flow-card h3 { font-size: 15px; margin-bottom: 4px; }
.flow-card p { margin: 0; font-size: 12.5px; color: var(--soft); line-height: 1.55; }
.flow-card .steps { margin-top: 10px; font-size: 11px; color: var(--ink-2); font-family: var(--mono); }

/* ---------- 行业 hero ---------- */
.hero { display: flex; gap: 20px; align-items: center; margin-bottom: 20px;
        background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 18px; }
.hero img { width: 220px; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--r-m); flex: none; }
.hero h2 { font-size: 22px; }
.hero .tagline { color: var(--soft); font-size: 13.5px; margin: 4px 0 8px; }

/* ---------- Stepper ---------- */
.stepper { display: flex; gap: 0; margin-bottom: 20px; border: 1px solid var(--line);
           border-radius: var(--r-m); overflow: hidden; background: var(--card); }
.stepper button {
  flex: 1; border: 0; border-right: 1px solid var(--line-2); cursor: pointer;
  padding: 11px 8px; font: inherit; font-size: 12.5px; font-weight: 600; color: var(--soft);
  background: transparent; display: flex; align-items: center; justify-content: center; gap: 7px;
  transition: background .15s, color .15s;
}
.stepper button:last-child { border-right: 0; }
.stepper button:hover:not(:disabled) { background: var(--line-2); color: var(--ink); }
.stepper button.on { background: var(--accent); color: #fff; }
.stepper button:disabled { opacity: .38; cursor: not-allowed; }
.stepper .n { display: inline-flex; align-items: center; justify-content: center;
              width: 19px; height: 19px; border-radius: 50%; font-size: 11px;
              background: rgba(0,0,0,.08); flex: none; }
.stepper button.on .n { background: rgba(255,255,255,.25); }

/* ---------- 卡片 / 面板 ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m);
        padding: 20px; margin-bottom: 16px; box-shadow: var(--sh-1); }
.card > h3 { font-size: 16px; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.card > .hint { color: var(--soft); font-size: 13px; margin-bottom: 14px; }

.panel { display: none; }
.panel.on { display: block; }
.flowpanel { display: none; }
.flowpanel.on { display: block; }

/* ---------- 表单 ---------- */
label.f { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 5px; }
label.f .req { color: var(--demo); }
input[type=text], input[type=number], textarea, select.inp {
  width: 100%; font: inherit; font-size: 14px; color: var(--ink);
  padding: 9px 11px; border: 1px solid var(--line); border-radius: var(--r-s);
  background: var(--card); transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select.inp:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 13%, transparent);
}
textarea { min-height: 150px; resize: vertical; font-family: var(--mono); font-size: 12.5px; line-height: 1.6; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.field { margin-bottom: 14px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  font: inherit; font-size: 13.5px; font-weight: 600;
  padding: 9px 16px; border-radius: var(--r-s);
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  transition: background .15s, border-color .15s, transform .1s;
}
.btn:hover { background: var(--line-2); }
.btn:active { transform: translateY(1px); }
.btn.pri { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.pri:hover { filter: brightness(1.07); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* ---------- 证据等级 / 演示占位标记 ---------- */
.ev {
  display: inline-flex; align-items: center; gap: 4px; vertical-align: middle;
  font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 4px;
  color: #fff; white-space: nowrap; letter-spacing: .01em;
}
.ev-official { background: var(--ev-official); }
.ev-research { background: var(--ev-research); }
.ev-convent  { background: var(--ev-convent); }
.ev-infer    { background: var(--ev-infer); }
.ev-editor   { background: var(--ev-editor); }
.ev-fill     { background: var(--ev-fill); }
.ev-neutral  { background: var(--soft); }

.demo-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 4px;
  background: #FDECEA; color: var(--demo); border: 1px solid #F5C6C0;
}

.legend { display: flex; flex-wrap: wrap; gap: 8px 14px; padding: 12px 16px; margin-bottom: 18px;
          background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); }
.legend .it { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--ink-2); }

/* ---------- 表格 ---------- */
.tw { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-m); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 9px 11px; text-align: left; border-bottom: 1px solid var(--line-2); vertical-align: top; }
th { background: var(--line-2); font-size: 12px; font-weight: 700; color: var(--ink-2); white-space: nowrap;
     position: sticky; top: 0; z-index: 1; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #FAFBFC; }
td.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--accent); }

/* ---------- 杀伤力排名 ---------- */
.rank { display: flex; flex-direction: column; gap: 10px; }
.rk { display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: start;
      padding: 13px; border: 1px solid var(--line); border-radius: var(--r-m); background: var(--card);
      cursor: pointer; transition: border-color .15s, box-shadow .15s; }
.rk:hover { border-color: var(--ink-2); box-shadow: var(--sh-1); }
.rk.top { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 4%, var(--card)); }
.rk .no { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center;
          font-weight: 800; font-size: 12px; background: var(--line-2); color: var(--ink-2); }
.rk.top .no { background: var(--accent); color: #fff; }
.rk .nm { font-weight: 700; font-size: 14px; }
.rk .mt { font-size: 12px; color: var(--soft); margin: 3px 0 6px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.rk .bar { height: 6px; background: var(--line-2); border-radius: 3px; overflow: hidden; margin: 6px 0; }
.rk .bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.rk .kl { font-family: var(--mono); font-size: 19px; font-weight: 800; color: var(--accent); }
.rk .quotes { font-size: 12.5px; color: var(--ink-2); border-left: 2px solid var(--line);
              padding-left: 10px; margin-top: 8px; }
.rk .quotes div { margin-bottom: 5px; }

/* ---------- 统计块 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); padding: 13px 15px; }
.stat .k { font-size: 11.5px; color: var(--soft); font-weight: 600; margin-bottom: 4px; }
.stat .v { font-size: 21px; font-weight: 800; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.stat .u { font-size: 12px; color: var(--soft); font-weight: 600; }
.stat.good .v { color: var(--ev-official); }
.stat.bad  .v { color: var(--demo); }
.stat.warn .v { color: var(--ev-convent); }

/* ---------- 合规检查 ---------- */
.checks { display: flex; flex-direction: column; gap: 7px; }
.chk { display: flex; align-items: flex-start; gap: 9px; padding: 9px 11px;
       border-radius: var(--r-s); font-size: 13px; border: 1px solid transparent; }
.chk.pass { background: #F0F8F4; border-color: #CDE9DC; }
.chk.fail { background: #FDECEA; border-color: #F5C6C0; }
.chk.warn { background: #FFF6E8; border-color: #F2DCB8; }
.chk .ico { font-weight: 800; flex: none; }
.chk.pass .ico { color: var(--ev-official); }
.chk.fail .ico { color: var(--demo); }
.chk.warn .ico { color: var(--ev-convent); }

/* ---------- 输出模板 ---------- */
.out { background: #FBFCFD; border: 1px solid var(--line); border-radius: var(--r-m); padding: 14px;
       font-family: var(--mono); font-size: 12.5px; line-height: 1.75; white-space: pre-wrap;
       word-break: break-word; }
.out b { font-family: inherit; }
.out .slot { background: #FFF6E8; border-bottom: 1.5px dashed var(--ev-convent); padding: 0 3px; }
.slot-input { width: 100%; font: inherit; font-size: 13px; padding: 5px 7px;
              border: 1px solid var(--line); border-radius: 4px; background: #FFFDF8; }

/* ---------- 阶段排期 ---------- */
.gantt { display: flex; flex-direction: column; gap: 10px; }
.g-item { display: grid; grid-template-columns: 108px 1fr; gap: 14px; align-items: center; }
.g-item .lbl { font-size: 12.5px; font-weight: 700; }
.g-item .lbl small { display: block; font-weight: 500; color: var(--soft); font-size: 11px; }
.g-bar { height: 30px; border-radius: var(--r-s); display: flex; align-items: center; padding: 0 11px;
         font-size: 12px; font-weight: 600; color: #fff; overflow: hidden; }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(80px);
         background: var(--ink); color: #fff; padding: 11px 20px; border-radius: var(--r-s);
         font-size: 13.5px; font-weight: 600; box-shadow: var(--sh-3); z-index: 200;
         transition: transform .25s cubic-bezier(.2,.8,.3,1); pointer-events: none; }
.toast.on { transform: translateX(-50%) translateY(0); }

/* ---------- 空状态 ---------- */
.empty { padding: 34px 20px; text-align: center; color: var(--soft); font-size: 13.5px; }
.empty .big { font-size: 30px; margin-bottom: 8px; opacity: .5; }

@media (max-width: 900px) {
  .flows, .grid2, .grid3, .grid4, .stats { grid-template-columns: 1fr; }
  .hero { flex-direction: column; align-items: flex-start; }
  .hero img { width: 100%; }
  .stepper { flex-wrap: wrap; }
  .stepper button { min-width: 33%; border-bottom: 1px solid var(--line-2); }
}