/* ==========================================================================
   10倍大数据分析 — 研究报告风
   米白纸面 + 松绿；左侧栏目标签、衬线标题、图表与公式框
   ========================================================================== */

body.page-shibei {
  --ink: #1a2b24;
  --ink-2: #46524a;
  --muted: #6d6a5e;
  --line: rgba(26, 43, 36, .14);
  --paper: #f6f3ea;
  --shell: #efeade;
  --night: #14251e;
  --accent: #1d5c46;
  --accent-2: #a63a2b;
  --accent-soft: rgba(29, 92, 70, .07);
  --focus: #1d5c46;
  --header-bg: rgba(246, 243, 234, .94);
  font-family: "Noto Serif SC", "Songti SC", serif;
}

.page-shibei .brand-mark { background: #1d5c46; color: #f6f3ea; }
.page-shibei .site-nav a,
.page-shibei .btn,
.page-shibei .btn-login,
.page-shibei .acc-trigger,
.page-shibei .tg-link { font-family: var(--font); }
.page-shibei .btn-primary { background: #1d5c46; color: #f9f6ee; }
.page-shibei .btn-primary:hover { background: #174b39; }
.page-shibei .btn-room { color: #1a2b24; }
.page-shibei .btn-room b { color: #1d5c46; }
.page-shibei .btn-login { background: #1d5c46; color: #f9f6ee; }

/* ---------- Hero ---------- */
.sb-hero {
  padding: 54px 0 0;
  background:
    linear-gradient(180deg, #fbf8f0 0%, #f6f3ea 100%);
  border-bottom: 1px solid var(--line);
}
.sb-crumb { margin-bottom: 30px; }
.sb-crumb a:hover { color: #1d5c46; }
.sb-masthead {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  gap: 54px;
  align-items: end;
}
.sb-kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  color: #8a8474;
}
.sb-hero h1 {
  margin-top: 14px;
  font-size: clamp(38px, 4.8vw, 60px);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -.5px;
  color: #1a2b24;
}
.sb-sub {
  margin-top: 12px;
  font-size: 14px;
  letter-spacing: 3px;
  color: #7d7665;
}
.sb-lead {
  margin-top: 22px;
  max-width: 560px;
  font-size: 15px;
  line-height: 2;
  color: #46524a;
}
.sb-lead strong { color: #1d5c46; border-bottom: 1px solid rgba(29, 92, 70, .35); }
.sb-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; padding-bottom: 46px; }
.sb-figure {
  align-self: end;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: #fffdf7;
  box-shadow: 0 26px 60px rgba(60, 52, 32, .14);
  transform: translateY(1px);
}

/* ---------- 报告版式 ---------- */
.sb-sec { padding: 64px 0; border-bottom: 1px solid rgba(26, 43, 36, .08); }
.sb-alt { background: #f1ece0; }
.sb-two {
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr);
  gap: 48px;
}
.sb-label {
  padding-top: 8px;
  border-top: 2px solid #1d5c46;
  align-self: start;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.sb-label span {
  display: block;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 1.6px;
  color: #8a8474;
  padding-top: 8px;
}
.sb-label b {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 600;
  color: #1a2b24;
}
.sb-sec h2 {
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.35;
  font-weight: 700;
  color: #1a2b24;
  margin-bottom: 16px;
}
.sb-intro { font-size: 14.5px; line-height: 2; color: #4c584f; max-width: 780px; }

/* ---------- 摘要 ---------- */
.sb-abstract { background: #fbf8f0; }
.sb-drop {
  font-size: 16px;
  line-height: 2.05;
  color: #3c463e;
  max-width: 800px;
}
.sb-drop::first-letter {
  float: left;
  margin: 8px 12px 0 0;
  font-size: 58px;
  line-height: .82;
  font-weight: 700;
  color: #1d5c46;
}
.sb-drop strong { color: #1a2b24; background: linear-gradient(transparent 62%, rgba(29, 92, 70, .16) 0); }
.sb-abstract-list {
  display: grid;
  gap: 10px;
  margin-top: 26px;
  max-width: 800px;
}
.sb-abstract-list li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: #4c584f;
}
.sb-abstract-list b {
  flex: none;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.2px;
  color: #1d5c46;
  padding-top: 4px;
}

/* ---------- 口径 ---------- */
.sb-def {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border: 1px solid var(--line);
}
.sb-def > div { padding: 22px 24px; background: #fbf8f0; }
.sb-def b { display: block; font-size: 15px; color: #1d5c46; margin-bottom: 6px; }
.sb-def p { font-size: 13.5px; line-height: 1.85; color: #6d6a5e; }

/* ---------- 表格 ---------- */
.sb-table-wrap { overflow-x: auto; margin-top: 24px; border: 1px solid var(--line); background: #fbf8f0; }
.sb-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 13.5px;
}
.sb-table th,
.sb-table td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(26, 43, 36, .1);
}
.sb-table thead th {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.2px;
  color: #8a8474;
  font-weight: 600;
}
.sb-table td { color: #4c584f; }
.sb-table td:nth-child(n+2) { font-family: var(--mono); }
.sb-table tr.is-key td { background: rgba(29, 92, 70, .06); color: #1a2b24; font-weight: 600; }
.sb-table tbody tr:last-child td { border-bottom: 0; }
.sb-note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.8;
  color: #8a8474;
}

/* ---------- 10倍 ---------- */
.sb-ten {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 24px;
}
.sb-ten > div {
  padding: 18px 14px;
  border: 1px solid var(--line);
  background: #fbf8f0;
}
.sb-ten b {
  display: block;
  font-family: var(--mono);
  font-size: 18px;
  color: #a63a2b;
}
.sb-ten span { display: block; margin-top: 6px; font-size: 11.5px; color: #6d6a5e; }

/* ---------- 图表 ---------- */
.sb-chart {
  margin-top: 26px;
  padding: 30px 26px 20px;
  border: 1px solid var(--line);
  background: #fbf8f0;
}
.sb-chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 220px;
  padding-bottom: 24px;
  border-bottom: 1px solid #cfc9b8;
}
.sb-chart-bars > div {
  position: relative;
  flex: 1;
  height: calc(var(--h) * 1%);
  background: linear-gradient(180deg, #3f8f6f, #1d5c46);
  min-height: 6px;
}
.sb-chart-bars > div:nth-child(9) { background: linear-gradient(180deg, #c25a3f, #a63a2b); }
.sb-chart-bars span {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 9.5px;
  color: #8a8474;
}
.sb-chart-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: #8a8474;
}

/* ---------- 相关与因果 ---------- */
.sb-vs { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin-top: 24px; border: 1px solid var(--line); }
.sb-vs > div { padding: 26px 28px; background: #fbf8f0; }
.sb-vs > div + div { border-left: 1px solid var(--line); }
.sb-vs h3 { font-size: 17px; font-weight: 700; color: #1d5c46; margin-bottom: 8px; }
.sb-vs p { font-size: 13.5px; line-height: 1.9; color: #6d6a5e; }
.sb-quote {
  margin-top: 26px;
  padding: 24px 0 24px 26px;
  border-left: 3px solid #a63a2b;
  font-size: 20px;
  line-height: 1.7;
  color: #1a2b24;
}

/* ---------- 公式 ---------- */
.sb-formula {
  display: grid;
  grid-template-columns: auto auto;
  gap: 4px 24px;
  align-items: center;
  margin: 26px 0;
  padding: 28px 30px;
  border: 1px solid var(--line);
  background: #fbf8f0;
}
.sb-formula span {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.4px;
  color: #8a8474;
}
.sb-formula b {
  font-family: var(--mono);
  font-size: 30px;
  color: #1d5c46;
  letter-spacing: 1px;
}
.sb-formula em {
  grid-column: 1 / -1;
  font-style: normal;
  font-size: 12.5px;
  color: #8a8474;
}

/* ---------- 假设 ---------- */
.sb-hyp {
  counter-reset: hyp;
  margin-top: 22px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.sb-hyp li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.sb-hyp li::before {
  counter-increment: hyp;
  content: "0" counter(hyp);
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 13px;
  color: #a63a2b;
  padding-top: 2px;
}
.sb-hyp b { grid-column: 2; display: block; font-size: 15.5px; color: #1a2b24; margin-bottom: 5px; font-weight: 600; }
.sb-hyp span { grid-column: 2; font-size: 13.5px; line-height: 1.85; color: #6d6a5e; }

/* ---------- 流程 ---------- */
.sb-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border: 1px solid var(--line);
}
.sb-flow > div { padding: 22px 18px; background: #fbf8f0; }
.sb-flow b { font-family: var(--mono); font-size: 11px; letter-spacing: 1px; color: #a63a2b; }
.sb-flow h3 { margin: 9px 0 7px; font-size: 14.5px; font-weight: 700; color: #1a2b24; }
.sb-flow p { font-size: 12.5px; line-height: 1.8; color: #6d6a5e; }

/* ---------- 折叠 ---------- */
.sb-acc { margin-top: 20px; border-top: 1px solid var(--line); }
.sb-acc .acc-trigger { font-family: var(--font); font-size: 15px; color: #1a2b24; }
.sb-acc .acc-trigger:hover { color: #1d5c46; }

/* ---------- 结论 ---------- */
.sb-dark { background: #14251e; color: #e8e3d4; }
.sb-dark .sb-label { border-top-color: #c9b494; }
.sb-dark .sb-label span { color: #8fa294; }
.sb-dark .sb-label b { color: #f2ede0; }
.sb-dark h2 { color: #f2ede0; }
.sb-concl {
  font-size: 21px;
  line-height: 1.8;
  color: #e8e3d4;
  max-width: 820px;
}
.sb-bound { margin-top: 28px; display: grid; gap: 0; border-top: 1px solid rgba(255, 255, 255, .16); }
.sb-bound li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  font-size: 13.5px;
  color: #a9b8ac;
}
.sb-bound b {
  display: inline-block;
  min-width: 88px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 1.2px;
  color: #c9b494;
}

/* ---------- 相关 ---------- */
.sb-related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.sb-related a {
  padding: 22px 22px;
  border: 1px solid var(--line);
  background: #fbf8f0;
  transition: border-color .2s, transform .2s;
}
.sb-related a:hover { border-color: #1d5c46; transform: translateY(-3px); }
.sb-related em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 1.6px;
  color: #8a8474;
}
.sb-related b { display: block; margin: 9px 0 4px; font-size: 15px; color: #1a2b24; }
.sb-related span { font-size: 12.5px; line-height: 1.7; color: #6d6a5e; }

/* ---------- 联系 ---------- */
.sb-contact-sec { border-bottom: 0; }
.sb-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 36px;
  border: 1px solid var(--line);
  border-top: 3px solid #1d5c46;
  background: #fbf8f0;
}
.sb-contact h2 { font-size: 24px; font-weight: 700; color: #1a2b24; }
.sb-contact p { margin-top: 7px; font-size: 13.5px; color: #6d6a5e; }
.sb-mini-map { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 14px; }
.sb-mini-map a {
  font-family: var(--mono);
  font-size: 11.5px;
  color: #1d5c46;
  border-bottom: 1px solid rgba(29, 92, 70, .35);
}
.sb-contact .tg-link { font-family: var(--font); border-color: rgba(29, 92, 70, .3); color: #1a2b24; }
.sb-contact .tg-link:hover { border-color: #229ed9; background: rgba(34, 158, 217, .07); }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .sb-masthead { grid-template-columns: 1fr; gap: 34px; align-items: start; }
  .sb-figure { max-width: 680px; }
  .sb-actions { padding-bottom: 0; }
  .sb-two { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .sb-label { position: static; display: flex; align-items: baseline; gap: 12px; padding-top: 10px; }
  .sb-label span { padding-top: 0; }
  .sb-label b { margin-top: 0; }
  .sb-ten { grid-template-columns: repeat(5, 1fr); }
  .sb-flow { grid-template-columns: repeat(2, 1fr); }
  .sb-flow > div:last-child { grid-column: span 2; }
  .sb-related { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .sb-hero { padding-top: 38px; }
  .sb-hero h1 { font-size: 38px; }
  .sb-actions .btn { width: 100%; }
  .sb-sec { padding: 46px 0; }
  .sb-def { grid-template-columns: 1fr; }
  .sb-ten { grid-template-columns: repeat(2, 1fr); }
  .sb-vs { grid-template-columns: 1fr; }
  .sb-vs > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .sb-chart { padding: 20px 14px 16px; }
  .sb-chart-bars { height: 170px; gap: 2px; }
  .sb-chart-bars span { font-size: 8px; }
  .sb-formula { grid-template-columns: 1fr; }
  .sb-formula b { font-size: 24px; }
  .sb-flow { grid-template-columns: 1fr; }
  .sb-flow > div:last-child { grid-column: auto; }
  .sb-quote { font-size: 17px; }
  .sb-concl { font-size: 18px; }
  .sb-contact { padding: 26px 22px; }
  .sb-contact h2 { font-size: 21px; }
}