/* ─────────────────────────────────────────────────────────────
   李苏鸿杰 · 内容运营 / GMV 增长
   ★ 面试现场用：3 秒看到三个数字；黑白 + 一个蓝；无动效、无光晕、无外链字体
   ───────────────────────────────────────────────────────────── */

:root {
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6b7280;
  --faint: #9ca3af;
  --line: #e5e7eb;
  --soft: #f7f8fa;
  --blue: #2158e8;
  --blue-deep: #1a48c9;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Inter", "Helvetica Neue", Arial, sans-serif;
  background: #fff;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ── 导航：4 项，居中 ── */
.topbar {
  padding: 24px 56px 0;
}
.nav {
  display: flex;
  justify-content: center;
  gap: 44px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
}
.nav a {
  color: inherit;
  text-decoration: none;
  padding: 6px 2px;
  transition: color .18s ease;
}
.nav a:hover { color: var(--ink); }

/* ── 首屏 ── */
.hero {
  max-width: 1160px;
  margin: 0 auto;
  padding: 60px 56px 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 64px;
  align-items: start;
}

.hello {
  margin: 0 0 18px;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink-2);
}

.title {
  margin: 0 0 18px;
  font-size: clamp(44px, 5.6vw, 74px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.title-accent { color: var(--blue); }

.role {
  margin: 0 0 22px;
  font-size: clamp(16px, 1.4vw, 19px);
  font-weight: 600;
  color: var(--ink-2);
}

.lede {
  margin: 0 0 30px;
  font-size: clamp(20px, 1.9vw, 27px);
  line-height: 1.45;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* 三个数字 */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 0 0 30px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat-num {
  font-size: clamp(21px, 2.9vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.stat-label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

/* 按钮 */
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 48px;
  padding: 0 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 1px 2px rgba(33, 88, 232, .25);
}
.btn-primary:hover {
  background: var(--blue-deep);
  box-shadow: 0 6px 18px -6px rgba(33, 88, 232, .5);
}
.btn-ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: #d1d5db; }
.arr { font-size: 14px; }

/* 照片：一张「纸片」 */
.portrait { padding-top: 8px; }
.card {
  width: 340px;
  padding: 12px;
  background: #fff;
  border-radius: 30px;
  box-shadow:
    0 1px 2px rgba(15, 23, 42, .06),
    0 22px 46px -20px rgba(15, 23, 42, .32),
    0 54px 96px -46px rgba(30, 64, 175, .28);
  transform: rotate(-0.6deg);
}
.card-inner {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  overflow: hidden;
  background: #f4f5f7;
}
.card-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── 区块通用 ── */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 84px 56px;
  border-top: 1px solid var(--line);
}
.sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 24px;
}
.sec-no {
  font-size: 12px;
  font-weight: 600;
  color: var(--faint);
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
}
.sec-title {
  margin: 0;
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.notice {
  margin: 0 0 36px;
  padding: 12px 16px;
  background: var(--soft);
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ── 作品集：两栏 ── */
.work-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}
.col-title {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--muted);
}

.block { margin-bottom: 34px; }
.block-title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 600;
}
.block-foot {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.block-foot b { color: var(--ink); }

/* ① 漏斗 */
.funnel-row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) 62px;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.f-label { font-size: 13px; color: var(--ink-2); }
.f-track {
  height: 9px;
  background: #eef0f4;
  border-radius: 5px;
  overflow: hidden;
}
.f-bar {
  display: block;
  height: 100%;
  min-width: 12px;
  background: var(--ink);
  border-radius: 5px;
}
.funnel-row:last-of-type .f-bar { background: var(--blue); }
.f-num {
  font-size: 14px;
  font-weight: 600;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ② 收入结构 */
.rev {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.rev td {
  padding: 10px 0;
  border-bottom: 1px solid #f0f1f4;
  color: var(--ink-2);
}
.rev .r { text-align: right; font-variant-numeric: tabular-nums; }
.rev .b { font-weight: 600; color: var(--ink); }
.rev tr.sum td {
  border-bottom: none;
  border-top: 1.5px solid var(--ink);
  font-weight: 700;
  color: var(--ink);
  padding-top: 12px;
}

/* ③ 增长曲线 */
.chart {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 8px;
}
.bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.bar-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.bar-area {
  display: flex;           /* ★ span 默认 inline —— blockify 之后 height 才生效 */
  align-items: flex-end;   /* 柱子贴底 */
  justify-content: center;
  height: 120px;
  width: 100%;
}
.bar {
  width: min(54px, 72%);
  min-height: 3px;
  background: #d9dde4;
  border-radius: 3px 3px 0 0;
}
.bar.peak { background: var(--blue); }
.bar-x {
  font-size: 11px;
  color: var(--faint);
  margin-top: 8px;
  font-variant-numeric: tabular-nums;
}
.bar-note {
  font-size: 11px;
  color: var(--faint);
  margin-top: 2px;
}
.bar-note.up { color: var(--blue); font-weight: 600; }

/* ④ 洞察 */
.insight {
  margin-top: 8px;
  padding: 26px 24px;
  background: var(--soft);
  border-left: 3px solid var(--ink);
  border-radius: 0 8px 8px 0;
}
.insight-kicker {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--muted);
}
.insight-big {
  margin: 0 0 16px;
  font-size: clamp(19px, 2vw, 25px);
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.insight-big b { font-weight: 700; }
.insight-line {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* 产品界面 */
.shot { margin: 0 0 22px; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 0.5px solid rgba(0, 0, 0, .1);
}
.shot figcaption {
  margin-top: 8px;
  font-size: 12px;
  color: var(--faint);
}
.shot-note {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--faint);
}

/* ── 经历 ── */
.exp { margin-top: 8px; }
.exp + .exp {
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid #f0f1f4;
}
.exp-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.exp-head h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}
.exp-time {
  font-size: 13px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}
.exp-role {
  margin: 6px 0 14px;
  font-size: 14px;
  color: var(--muted);
}
.exp-list {
  margin: 0;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
}
.exp-list li { margin-bottom: 4px; }
.exp-list b { color: var(--ink); }

/* ── Praxis ── */
.prose {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}
.prose p { margin: 0 0 14px; }
.prose b { color: var(--ink); }
.prose .highlight {
  margin: 20px 0;
  padding-left: 14px;
  border-left: 2px solid var(--blue);
  font-weight: 600;
  color: var(--ink);
}
.prose .muted { color: var(--faint); font-size: 14px; }

.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.steps span {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink-2);
}

/* ── 联系 ── */
.contact-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  max-width: 520px;
}
.contact-list li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid #f0f1f4;
  font-size: 16px;
}
.contact-list li > span {
  font-size: 12px;
  color: var(--faint);
}
.contact-list a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}
.contact-list a:hover { border-bottom-color: var(--ink); }
.contact-list b { font-weight: 600; }

/* ── 页脚 ── */
.foot {
  max-width: 1080px;
  margin: 0 auto;
  padding: 36px 56px 48px;
  border-top: 1px solid var(--line);
}
.foot-note {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--faint);
}
.foot-legal {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--faint);
}
.foot-legal a { color: inherit; text-decoration: none; }
.foot-legal a:hover { color: var(--muted); }
.foot-legal .dot { color: #d1d5db; }
.gongan {
  width: 16px;
  height: 17px;
  vertical-align: -3px;
  margin-right: 4px;
}

/* ── 平板 ── */
@media (max-width: 980px) {
  .topbar { padding: 20px 28px 0; }
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 44px 28px 56px;
  }
  .portrait { padding-top: 0; }
  .card { width: min(300px, 70vw); margin: 0 auto; }
  .section { padding: 64px 28px; }
  .work-grid { grid-template-columns: 1fr; gap: 40px; }
  .foot { padding: 32px 28px 40px; }
}

/* ── 手机（375px 不横滚） ── */
@media (max-width: 640px) {
  .topbar { padding: 16px 20px 0; }
  .nav { gap: 22px; font-size: 13.5px; }

  .hero { padding: 32px 20px 44px; gap: 32px; }
  .hello { font-size: 19px; margin-bottom: 12px; }
  .title { font-size: clamp(34px, 10vw, 44px); margin-bottom: 14px; }
  .role { font-size: 14px; margin-bottom: 18px; }
  .lede { font-size: 19px; margin-bottom: 22px; }

  .stats { gap: 10px; padding: 18px 0; margin-bottom: 22px; }
  .stat-num { font-size: 20px; }
  .stat-label { font-size: 11px; }

  .btn { height: 46px; padding: 0 18px; font-size: 14px; }

  .section { padding: 52px 20px; border-top: 1px solid var(--line); }
  .sec-head { gap: 10px; margin-bottom: 18px; }
  .sec-title { font-size: 22px; }
  .notice { font-size: 12px; padding: 10px 12px; margin-bottom: 26px; }

  .work-grid { gap: 36px; }
  .block { margin-bottom: 28px; }

  .funnel-row { grid-template-columns: 58px minmax(0, 1fr) 52px; gap: 8px; }
  .f-label, .f-num { font-size: 12px; }
  .rev { font-size: 12.5px; }
  .rev td { padding: 8px 0; }

  .chart { gap: 8px; }
  .bar-area { height: 120px; }
  .bar-val { font-size: 11px; }
  .bar-x, .bar-note { font-size: 10px; }

  .insight { padding: 20px 16px; }
  .insight-big { font-size: 18px; }
  .insight-line { font-size: 13px; }

  .exp-head h3 { font-size: 16px; }
  .exp-list { font-size: 14px; line-height: 1.85; padding-left: 16px; }

  .prose { font-size: 15px; }
  .contact-list li { font-size: 15px; grid-template-columns: 52px minmax(0, 1fr); }

  .card { width: min(240px, 62vw); }
  .foot { padding: 28px 20px 36px; }
}