/* ============================================================
   老蔡的专属茶舍 · 共用主题
   古风雅致、低饱和暖色、轻量无依赖
   ============================================================ */
:root {
  --paper:   #f7f2e8;  /* 宣纸米白 */
  --paper-2: #f1e9da;  /* 略深纸色 */
  --ink:     #3d352c;  /* 墨色标题 */
  --brown:   #8c6d4f;  /* 暖褐正文 */
  --tea:     #7d8c6f;  /* 茶青点缀 */
  --ochre:   #a67c52;  /* 赭石 */
  --cinnabar:#b05a41;  /* 朱砂印章 */
  --line:    #ddd2bd;  /* 淡描边 */
  --shadow:  0 2px 10px rgba(93, 74, 52, .10);
  --serif-title: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif SC", "SimSun", serif;
  --serif-body:  "Songti SC", "SimSun", "Noto Serif SC", "STSong", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--serif-body);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(125, 140, 111, .07), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(166, 124, 82, .06), transparent 60%),
    var(--paper);
  color: var(--brown);
  min-height: 100vh;
  line-height: 1.8;
  display: flex;
  flex-direction: column;
}

h1, h2, h3 { font-family: var(--serif-title); color: var(--ink); font-weight: 600; }
a { color: var(--ochre); text-decoration: none; }
a:hover { color: var(--cinnabar); }

/* 仅淡入轻动效 */
@keyframes teaFade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
.fade-in { animation: teaFade .45s ease both; }
.fade-in-2 { animation: teaFade .45s .12s ease both; }
.fade-in-3 { animation: teaFade .45s .24s ease both; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; gap: 14px;
  max-width: 1080px; width: 100%;
  margin: 0 auto; padding: 22px 20px 14px;
}
.topbar .brand { display: flex; align-items: center; gap: 12px; }
.seal {
  width: 52px; height: 52px; flex: none;
  background: var(--cinnabar); color: #fdf7ee;
  border-radius: 8px;
  display: grid; place-items: center;
  font-family: var(--serif-title);
  font-size: 15px; line-height: 1.15; text-align: center;
  letter-spacing: 1px;
  box-shadow: inset 0 0 0 2px rgba(253, 247, 238, .55), var(--shadow);
  transform: rotate(-2deg);
  user-select: none;
}
.seal.small { width: 40px; height: 40px; font-size: 12px; border-radius: 6px; }
.brand .site-name { font-size: 22px; color: var(--ink); letter-spacing: 3px; }
.brand .site-sub { font-size: 12px; color: var(--tea); letter-spacing: 2px; }

.nav { margin-left: auto; display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  font-size: 14px; color: var(--brown);
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color .2s, color .2s;
  touch-action: manipulation;
}
.nav a:hover { color: var(--cinnabar); border-color: var(--line); }
.nav a.active { color: var(--cinnabar); border-color: var(--cinnabar); }

/* ---------- 容器 ---------- */
.wrap { max-width: 1080px; width: 100%; margin: 0 auto; padding: 0 20px 40px; flex: 1; }

.divider {
  height: 1px; border: 0; margin: 10px 0 26px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent);
}

/* ---------- 首页 ---------- */
.hero { text-align: center; padding: 30px 0 10px; }
.hero h1 { font-size: 34px; letter-spacing: 8px; margin-bottom: 10px; }
.hero .greeting { font-size: 16px; color: var(--ochre); letter-spacing: 2px; }
.hero .motto { margin-top: 12px; font-size: 14px; color: var(--tea); letter-spacing: 3px; }

.space-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin-top: 34px;
}
.space-card {
  display: block; background: var(--paper-2);
  border: 1px solid var(--line); border-radius: 14px;
  padding: 28px 22px; text-align: center;
  box-shadow: var(--shadow);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
  touch-action: manipulation;
}
.space-card:hover {
  transform: translateY(-3px);
  border-color: var(--ochre);
  box-shadow: 0 6px 18px rgba(93, 74, 52, .16);
}
.space-card .badge {
  width: 64px; height: 64px; margin: 0 auto 14px;
  border-radius: 50%; display: grid; place-items: center;
  font-family: var(--serif-title); font-size: 28px; color: #fdf7ee;
  background: var(--tea);
  box-shadow: inset 0 0 0 3px rgba(253, 247, 238, .4);
}
.space-card:nth-child(2) .badge { background: var(--ochre); }
.space-card:nth-child(3) .badge { background: var(--cinnabar); }
.space-card h2 { font-size: 20px; letter-spacing: 4px; margin-bottom: 8px; }
.space-card p { font-size: 13px; color: var(--brown); line-height: 1.9; }
.space-card .enter { display: inline-block; margin-top: 14px; font-size: 13px; color: var(--cinnabar); letter-spacing: 2px; }

.notice {
  margin-top: 36px; padding: 16px 20px;
  border: 1px dashed var(--line); border-radius: 12px;
  font-size: 13px; color: var(--tea); text-align: center; line-height: 2;
}

/* ---------- 页脚 ---------- */
.footer {
  text-align: center; padding: 22px 16px 30px;
  font-size: 12px; color: var(--tea); letter-spacing: 2px;
}
.footer .foot-seal { color: var(--cinnabar); }

/* ---------- 空间页通用 ---------- */
.room-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 6px; }
.room-head h1 { font-size: 26px; letter-spacing: 5px; }
.room-head .room-en { font-size: 13px; color: var(--tea); letter-spacing: 2px; }
.room-desc { font-size: 13px; color: var(--brown); margin-bottom: 18px; }

.panel {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow);
}

.btn {
  font-family: var(--serif-body); font-size: 14px;
  padding: 8px 18px; border-radius: 999px;
  border: 1px solid var(--ochre); background: transparent; color: var(--ochre);
  cursor: pointer; transition: all .18s;
  touch-action: manipulation;
}
.btn:hover { background: var(--ochre); color: #fdf7ee; }
.btn.primary { background: var(--cinnabar); border-color: var(--cinnabar); color: #fdf7ee; }
.btn.primary:hover { background: #9c4e37; }
.btn:disabled { opacity: .45; cursor: default; }
.btn:disabled:hover { background: transparent; color: var(--ochre); }
.btn.primary:disabled:hover { background: var(--cinnabar); color: #fdf7ee; }

/* ---------- 响应式：平板 ---------- */
@media (max-width: 900px) {
  .hero h1 { font-size: 28px; letter-spacing: 5px; }
  .space-grid { grid-template-columns: 1fr; gap: 14px; }
  .space-card { padding: 22px 18px; }
  .topbar { padding-top: 16px; }
  .brand .site-name { font-size: 19px; }
}
@media (max-width: 520px) {
  .nav a { padding: 5px 9px; font-size: 13px; }
}