/* ============================================================
   服务页专属样式（/services）
   设计令牌、导航、页脚、按钮、sec-head 等复用 site.css；
   页尾 CTA 因与 site.css 首页 .cta 冲突，重命名为 .svc-cta。
   ============================================================ */

/* ============ 页头 ============ */
.page-hero {
  position: relative; overflow: hidden;
  padding: 88px 0 72px;
  background:
    radial-gradient(900px 380px at 85% -20%, rgba(46, 71, 86, .07), transparent 60%),
    var(--paper);
}
.page-hero .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .3em; color: var(--ink-50); margin-bottom: 22px;
}
.page-hero .eyebrow::before { content: ""; width: 36px; height: 1px; background: var(--faint); }
.page-hero h1 {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(34px, 5vw, 52px); letter-spacing: .05em; line-height: 1.3;
  margin-bottom: 20px;
}
.page-hero h1 em { font-style: normal; color: var(--cinnabar); }
.page-hero .lede { font-size: 16.5px; color: var(--ink-70); max-width: 620px; }
.page-hero .watermark {
  position: absolute; top: 24px; right: 40px; z-index: 1;
  font-family: "Zhi Mang Xing", "Ma Shan Zheng", var(--serif); font-weight: 400;
  font-size: clamp(180px, 24vw, 280px); line-height: 1;
  color: rgba(28, 28, 28, .05); pointer-events: none; user-select: none;
}
.page-hero .mountains { position: absolute; left: 0; right: 0; bottom: -4px; pointer-events: none; }
.page-hero .mountains svg { display: block; width: 100%; height: 120px; }

/* ============ 服务线锚点导航 ============ */
.svc-tabs {
  position: sticky; top: 77px; z-index: 40;
  background: rgba(247, 244, 237, .95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--faint);
  box-shadow: 0 10px 24px -18px rgba(28, 28, 28, .35);
}
.svc-tabs-inner {
  display: flex; gap: 8px; max-width: var(--container);
  margin: 0 auto; padding: 14px 32px; overflow-x: auto;
}
.svc-tab {
  flex: none; display: inline-flex; align-items: baseline; gap: 8px;
  padding: 8px 18px; border: 1px solid var(--faint); border-radius: 2px;
  font-size: 14px; color: var(--ink-70); white-space: nowrap;
  transition: border-color .2s, color .2s, background-color .2s;
}
.svc-tab b { font-family: var(--serif); color: var(--ink-50); font-weight: 600; }
.svc-tab:hover { border-color: var(--cinnabar); color: var(--ink); }
.svc-tab:hover b { color: var(--cinnabar); }

/* ============ 服务线分带 ============ */
.svc-band { padding: 88px 0; border-top: 1px solid var(--faint-2); scroll-margin-top: 150px; }
.svc-band.alt { background: var(--paper-2); }
.svc-head { display: flex; align-items: flex-start; gap: 26px; margin-bottom: 48px; }
.svc-no {
  font-family: "Zhi Mang Xing", "Ma Shan Zheng", var(--serif);
  font-weight: 400; font-size: 88px; line-height: 1;
  color: var(--cinnabar); flex: none; padding-top: 2px;
}
.svc-head h2 { font-family: var(--serif); font-weight: 700; font-size: clamp(26px, 3.2vw, 33px); letter-spacing: .06em; }
.svc-lede { font-size: 16px; color: var(--ink-70); margin-top: 10px; max-width: 640px; }
.svc-grid { display: grid; grid-template-columns: 1fr 320px; gap: 44px; align-items: start; }

.svc-items { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.svc-item {
  background: var(--paper); border: 1px solid var(--faint); border-radius: 4px;
  padding: 24px 22px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color .2s, transform .2s var(--ease);
}
.svc-band.alt .svc-item { background: var(--paper-2); }
.svc-item:hover { border-color: var(--cinnabar); transform: translateY(-4px); }
.svc-item .item-head { display: flex; align-items: center; gap: 12px; }
.svc-item .item-icon {
  width: 40px; height: 40px; border-radius: 3px;
  background: rgba(46, 71, 86, .08); display: grid; place-items: center; flex: none;
}
.svc-item .item-icon svg { width: 22px; height: 22px; }
.svc-item h3 { font-family: var(--serif); font-size: 17.5px; font-weight: 700; letter-spacing: .03em; }
.svc-item p { font-size: 15px; color: var(--ink-70); }
.svc-item .item-note {
  font-size: 12px; color: var(--indigo); letter-spacing: .08em;
  border-top: 1px dashed var(--faint); padding-top: 10px; margin-top: auto;
}

/* ============ 服务线侧栏 ============ */
.svc-side { display: flex; flex-direction: column; gap: 16px; }
.side-card { border: 1px solid var(--faint); border-radius: 4px; padding: 22px 22px 20px; background: var(--paper-2); }
.svc-band.alt .side-card { background: var(--paper); }
.side-card h4 {
  font-size: 13px; letter-spacing: .26em; color: var(--ink-50); font-weight: 500;
  margin-bottom: 14px; display: flex; align-items: center; gap: 10px;
}
.side-card h4::before { content: ""; width: 8px; height: 8px; background: var(--indigo); border-radius: 2px; transform: rotate(45deg); }
.side-card.audience ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.side-card.audience li { font-size: 14.5px; color: var(--ink-70); padding-left: 18px; position: relative; }
.side-card.audience li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 1.5px; background: var(--cinnabar); }
.side-card.delivery p { font-size: 14.5px; color: var(--ink-70); }
.side-card.delivery .dl-timeline { display: flex; flex-direction: column; gap: 0; margin-top: 4px; }
.dl-step {
  display: grid; grid-template-columns: 22px 1fr; gap: 10px;
  position: relative; padding-bottom: 12px; font-size: 13px; color: var(--ink-70);
}
.dl-step::before { content: ""; position: absolute; left: 10px; top: 18px; bottom: -2px; width: 1px; background: var(--faint); }
.dl-step:last-child::before { display: none; }
.dl-step i {
  width: 20px; height: 20px; border: 1px solid var(--indigo); border-radius: 50%;
  display: grid; place-items: center; font-style: normal; font-size: 11px;
  color: var(--indigo); background: var(--paper-2); z-index: 1;
}
.svc-band.alt .dl-step i { background: var(--paper); }

.svc-band .side-card.price { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.side-card.price h4 { color: rgba(247, 244, 237, .55); }
.side-card.price h4::before { background: var(--cinnabar); }
.price-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 7px 0; border-bottom: 1px dashed rgba(247, 244, 237, .18);
}
.price-row:last-of-type { border-bottom: none; }
.price-row span { font-size: 13px; color: rgba(247, 244, 237, .72); }
.price-row b { font-family: var(--serif); font-size: 17px; font-weight: 700; color: #E8B4B0; white-space: nowrap; }
.price-note { font-size: 12px; color: rgba(247, 244, 237, .45); margin-top: 12px; }
.side-card .btn { margin-top: 16px; width: 100%; justify-content: center; padding: 13px 30px; font-size: 14.5px; }

/* ============ 合作流程（暗底） ============ */
.process { background: var(--ink); color: var(--paper); padding: 96px 0; }
.process .sec-head { margin-bottom: 64px; }
.process .sec-head h2 { color: var(--paper); }
.process .sec-en { color: rgba(247, 244, 237, .45); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.steps::before { content: ""; position: absolute; left: 6%; right: 6%; top: 27px; height: 1px; background: rgba(247, 244, 237, .22); }
.step { text-align: center; padding: 0 18px; position: relative; }
.step-no {
  width: 54px; height: 54px; margin: 0 auto 20px;
  border: 1px solid rgba(247, 244, 237, .5); border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--serif); font-size: 20px; font-weight: 700;
  color: var(--paper); background: var(--ink); position: relative; z-index: 1;
}
.step:first-child .step-no { background: var(--cinnabar); border-color: var(--cinnabar); }
.step h3 { font-family: var(--serif); font-size: 18px; font-weight: 700; margin-bottom: 8px; letter-spacing: .06em; }
.step p { font-size: 14px; color: rgba(247, 244, 237, .6); max-width: 220px; margin: 0 auto; }

/* ============ 页尾 CTA（浅底居中，区别于首页暗底 .cta） ============ */
.svc-cta { position: relative; overflow: hidden; padding: 100px 0; background: var(--paper-2); border-top: 1px solid var(--faint-2); }
.svc-cta-inner {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 18px;
  position: relative; z-index: 2;
}
.svc-cta-inner::before {
  content: "知行合一"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: "Ma Shan Zheng", var(--serif); font-weight: 400; font-size: 150px;
  color: rgba(28, 28, 28, .045); letter-spacing: .2em; white-space: nowrap;
  pointer-events: none;
}
.svc-cta h2 { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); font-weight: 900; letter-spacing: .06em; }
.svc-cta p { color: var(--ink-70); font-size: 16px; max-width: 520px; }

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .svc-grid { grid-template-columns: 1fr; }
  .svc-side { flex-direction: row; flex-wrap: wrap; }
  .side-card { flex: 1 1 260px; }
  .svc-items { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; gap: 40px 20px; }
  .steps::before { display: none; }
}
/* ============ 服务线两组分隔（企业服务 / 文化与民生） ============ */
.svc-group { padding-top: 8px; }
.svc-group-inner { display: flex; align-items: baseline; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--faint); }
.svc-group-label { font-family: var(--serif); font-weight: 700; font-size: 21px; letter-spacing: .1em; }
.svc-group-label::before { content: ""; display: inline-block; width: 9px; height: 9px; background: var(--cinnabar); border-radius: 50%; margin-right: 12px; vertical-align: 2px; }
.svc-group-lead { font-size: 14px; color: var(--ink-50); letter-spacing: .05em; }
.svc-group.second { padding-top: 40px; }
.svc-group.second .svc-group-inner { border-top: 3px double var(--ink); padding-top: 16px; }

@media (max-width: 640px) {
  .svc-tabs { top: 0; position: static; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero .watermark { display: none; }
  .svc-band { padding: 56px 0; scroll-margin-top: 120px; }
  .svc-no { font-size: 52px; }
  .svc-head { gap: 16px; }
  .svc-side { flex-direction: column; }
  .steps { grid-template-columns: 1fr; }
  .svc-cta-inner::before { font-size: 80px; }
  .svc-group-inner { flex-direction: column; gap: 6px; }
  .svc-group-label { font-size: 18px; }
}