/* 字体随网站保存在本地。无需联网，也不需要安装字体。 */
@font-face {
  font-family: "Cormorant Garamond";
  src: url("./fonts/cormorant-garamond-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("./fonts/dm-sans-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
}

/* 浅色主题。修改这些颜色即可调整配色。 */
:root {
  --paper: #f7f3ec;
  --ink: #47382c;
  --warm-ink: #6d5542;
  --gold: #917750;
  --line: rgba(145, 119, 80, 0.27);
  --section-ink: #775e3f;
  --selection: #e5d8c3;
  --glow-left: rgba(235, 218, 189, 0.37);
  --glow-right: rgba(235, 221, 200, 0.3);
}

/* 自动跟随系统深色模式；系统主题变化时，浏览器会即时更新。 */
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1e1916;
    --ink: #f0e7d9;
    --warm-ink: #dac5aa;
    --gold: #c2a477;
    --line: rgba(194, 164, 119, 0.28);
    --section-ink: #cbb492;
    --selection: #64513f;
    --glow-left: rgba(118, 85, 61, 0.15);
    --glow-right: rgba(118, 89, 62, 0.1);
  }
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--selection); color: var(--ink); }

.page {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  padding: 48px clamp(32px, 9vw, 150px) 42px;
  background:
    radial-gradient(ellipse at 17% 22%, var(--glow-left), transparent 55%),
    radial-gradient(ellipse at 89% 61%, var(--glow-right), transparent 49%),
    var(--paper);
}

.page::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 20px;
  border: 1px solid var(--line);
  pointer-events: none;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 27px;
  flex: 0 0 auto;
}

.emblem { width: 64px; height: 64px; color: var(--gold); }

.masthead-line {
  width: 72px;
  height: 1px;
  background: var(--line);
}

.hero {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 37px;
  min-height: 445px;
  padding: 70px 0 83px;
  text-align: center;
}

h1 {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(62px, 7.6vw, 112px);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.title-line { display: block; }
.corporation { color: var(--warm-ink); }

.ornament {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--gold);
}

.ornament::before, .ornament::after {
  content: "";
  display: block;
  width: 39px;
  height: 1px;
  background: var(--line);
}

.ornament span {
  width: 5px;
  height: 5px;
  transform: rotate(45deg);
  background: currentColor;
}

.branches {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.branch {
  position: relative;
  padding: 34px 35px 24px;
  text-align: center;
}

.branch + .branch::before {
  content: "";
  position: absolute;
  top: 32px;
  bottom: 24px;
  left: 0;
  width: 1px;
  background: var(--line);
}

h2 { margin: 0; font-weight: 500; }

.section-name {
  display: block;
  margin-bottom: 15px;
  color: var(--section-ink);
  font-family: "DM Sans", Arial, sans-serif;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.separator { padding-left: 4px; }

.branch-title {
  display: block;
  max-width: 510px;
  margin-inline: auto;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(27px, 2.65vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.closing-mark {
  width: 32px;
  height: 1px;
  margin: 24px auto 0;
  background: var(--gold);
  opacity: 0.65;
}

@media (min-width: 1600px) {
  .page { padding-top: 64px; padding-bottom: 54px; }
  .hero { min-height: 560px; }
}

@media (max-width: 900px) {
  .page { padding: 39px 54px 35px; }
  .hero { min-height: 420px; padding: 68px 0; }
  h1 { font-size: clamp(52px, 8.5vw, 75px); }
  .branch { padding-inline: 24px; }
  .branch-title { font-size: 28px; }
}

@media (max-width: 600px) {
  .page { padding: 35px 32px 31px; }
  .page::before { inset: 12px; }
  .masthead { gap: 19px; }
  .masthead-line { width: 42px; }
  .emblem { width: 56px; height: 56px; }
  .hero { min-height: 325px; padding: 64px 0; gap: 29px; }
  h1 { font-size: clamp(32px, 9.7vw, 56px); line-height: 1.08; letter-spacing: -0.025em; }
  .branches { grid-template-columns: 1fr; }
  .branch { padding: 25px 7px 28px; }
  .branch + .branch { border-top: 1px solid var(--line); }
  .branch + .branch::before { display: none; }
  .section-name { font-size: 10px; margin-bottom: 11px; }
  .branch-title { max-width: 340px; font-size: 27px; }
  .closing-mark { margin-top: 10px; }
}