/* 高端轻奢风：深炭底、金铜点缀、衬线标题、编辑式排版 */
:root {
  --noir: #17140f;
  --noir-2: #1e1a14;
  --champagne: #c9a86a;
  --champagne-dim: rgba(201, 168, 106, 0.35);
  --ivory: #f3ede2;
  --mist: #a89e8c;
  --rule: rgba(201, 168, 106, 0.16);
  --maxw: 1140px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #17140f 0%, #1b1712 55%, #141109 100%);
  color: var(--ivory);
  font-family: "Georgia", "Palatino Linotype", "Songti SC", "SimSun", serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  width: min(var(--maxw), calc(100% - 40px));
  margin: 0 auto;
}

h1, h2, h3, p {
  margin: 0;
}

.kicker {
  display: inline-block;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 11.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--champagne);
}

/* 顶栏 */
.masthead {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(23, 20, 15, 0.92);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(10px);
}

.masthead-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 78px;
  gap: 22px;
}

.emblem {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.emblem strong {
  font-size: 21px;
  letter-spacing: 0.18em;
}

.emblem span {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--mist);
}

.masthead-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.masthead-nav a:hover {
  color: var(--champagne);
}

/* 首屏：编辑式左右分栏 */
.overture {
  padding: 108px 0 88px;
  border-bottom: 1px solid var(--rule);
}

.overture-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 64px;
  align-items: end;
}

.overture h1 {
  margin-top: 30px;
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.12;
  font-weight: 500;
}

.overture h1 i {
  font-style: normal;
  color: var(--champagne);
}

.overture-side {
  border-left: 1px solid var(--champagne-dim);
  padding-left: 34px;
}

.overture-side p {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 2.1;
  color: var(--mist);
}

.overture-cta {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 32px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13.5px;
  letter-spacing: 0.14em;
  transition: all 0.25s ease;
}

.btn-gold {
  background: linear-gradient(120deg, #d8b878, var(--champagne));
  color: #1c1710;
}

.btn-gold:hover {
  filter: brightness(1.08);
}

.btn-ghost {
  border: 1px solid var(--champagne-dim);
  color: var(--ivory);
}

.btn-ghost:hover {
  border-color: var(--champagne);
  color: var(--champagne);
}

/* 数字横幅 */
.figures {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--rule);
}

.figure-cell {
  padding: 44px 30px;
  text-align: center;
}

.figure-cell + .figure-cell {
  border-left: 1px solid var(--rule);
}

.figure-cell strong {
  display: block;
  font-size: 30px;
  color: var(--champagne);
  letter-spacing: 0.04em;
}

.figure-cell p {
  margin-top: 12px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--mist);
}

/* 章节 */
.movement {
  padding: 90px 0;
  border-bottom: 1px solid var(--rule);
}

.movement-head {
  max-width: 640px;
  margin-bottom: 54px;
}

.movement-head h2 {
  margin-top: 18px;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 500;
  line-height: 1.25;
}

.movement-head p {
  margin-top: 18px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 2.05;
  color: var(--mist);
}

/* 交错服务区块 */
.suite {
  display: grid;
  gap: 22px;
}

.suite-item {
  display: grid;
  grid-template-columns: 120px 1fr 1.2fr;
  gap: 34px;
  padding: 38px 34px;
  background: var(--noir-2);
  border: 1px solid var(--rule);
  align-items: start;
}

.suite-item .index {
  font-size: 15px;
  letter-spacing: 0.24em;
  color: var(--champagne);
}

.suite-item h3 {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.suite-item p {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14.5px;
  line-height: 2.05;
  color: var(--mist);
}

/* 理念双栏 */
.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.pair-card {
  padding: 40px 36px;
  border: 1px solid var(--rule);
  background: var(--noir-2);
}

.pair-card.gilded {
  background: linear-gradient(150deg, rgba(201, 168, 106, 0.14), rgba(201, 168, 106, 0.04));
  border-color: var(--champagne-dim);
}

.pair-card h3 {
  font-size: 21px;
  font-weight: 500;
}

.pair-card p {
  margin-top: 16px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14.5px;
  line-height: 2.05;
  color: var(--mist);
}

.pair-card a {
  color: var(--champagne);
}

/* 页脚 */
.finale {
  padding: 60px 0 70px;
}

.finale-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 34px;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 13.5px;
  line-height: 2.15;
  color: var(--mist);
}

.finale a {
  color: var(--champagne);
}

@media (max-width: 920px) {
  .overture-grid,
  .figures,
  .pair,
  .finale-grid {
    grid-template-columns: 1fr;
  }

  .figure-cell + .figure-cell {
    border-left: none;
    border-top: 1px solid var(--rule);
  }

  .suite-item {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 28px 24px;
  }

  .overture {
    padding: 70px 0 56px;
  }

  .overture-side {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--champagne-dim);
    padding-top: 26px;
  }

  .movement {
    padding: 58px 0;
  }

  .masthead-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 0;
  }
}