/* 周易运势 · 古典美学样式 */
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;700&family=Ma+Shan+Zheng&display=swap");

:root {
  --ink: #2b1e14;
  --ink-soft: #5a4432;
  --cinnabar: #8a1a1a;
  --cinnabar-soft: #b33c3c;
  --paper: #f5ecd6;
  --paper-deep: #e6d6b0;
  --gold: #b88a3c;
  --jade: #4f6b47;
  --shadow: rgba(60, 32, 20, 0.25);
  --radius-sm: 4px;
  --radius-md: 10px;
  --font-cn: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-brush: "Ma Shan Zheng", "STKaiti", "Kaiti SC", "楷体", serif;
  --header-h: 56px;
  --date-h: 44px;
  --dock-h: 72px;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; height: 100%; }

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

body {
  color: var(--ink);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  background:
    radial-gradient(1200px 800px at 15% 10%, #fbf3df 0%, transparent 60%),
    radial-gradient(1000px 700px at 85% 90%, #f2e4c0 0%, transparent 60%),
    #efe3c4;
  min-height: 100dvh;
  overflow-x: hidden;
}

body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(139, 90, 30, 0.05) 0, transparent 1.5px),
    radial-gradient(circle at 70% 80%, rgba(139, 90, 30, 0.04) 0, transparent 2px),
    radial-gradient(circle at 50% 50%, rgba(139, 90, 30, 0.03) 0, transparent 1px);
  background-size: 9px 9px, 13px 13px, 7px 7px;
  mix-blend-mode: multiply;
  opacity: 0.9;
}

a { color: var(--cinnabar); text-decoration: none; }
a:hover { color: var(--cinnabar-soft); text-decoration: underline; }

button {
  cursor: pointer;
  font-family: var(--font-cn);
  font-size: 15px;
  padding: 8px 18px;
  border: 1px solid var(--cinnabar);
  background: linear-gradient(180deg, #fff8e6 0%, #f1e2b8 100%);
  color: var(--cinnabar);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px var(--shadow);
}
button:hover:not(:disabled) {
  background: linear-gradient(180deg, #8a1a1a 0%, #6f1414 100%);
  color: #fff8e6;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }

input, textarea, select {
  font-family: var(--font-cn);
  font-size: 15px;
  padding: 8px 12px;
  border: 1px solid var(--paper-deep);
  background: #fbf4dd;
  border-radius: var(--radius-sm);
  color: var(--ink);
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 2px rgba(138, 26, 26, 0.15);
}

.page { position: relative; z-index: 1; min-height: 100dvh; display: flex; flex-direction: column; }

.header {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px double var(--gold);
  background: linear-gradient(180deg, rgba(255, 248, 226, 0.8), transparent);
  flex-shrink: 0;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .title { font-family: var(--font-brush); font-size: 26px; color: var(--cinnabar); letter-spacing: 3px; }
.brand .subtitle { font-size: 12px; color: var(--ink-soft); letter-spacing: 1px; }
.nav { display: flex; gap: 10px; align-items: center; }
.nav a { color: var(--ink-soft); font-size: 14px; padding: 4px 8px; }
.nav a.active { color: var(--cinnabar); border-bottom: 1px solid var(--cinnabar); }

/* 日期条 */
.date-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 24px;
  height: var(--date-h);
  border-bottom: 1px dashed var(--paper-deep);
  background: rgba(255, 248, 226, 0.6);
  flex-shrink: 0;
}
.date-nav {
  width: 30px; height: 30px; padding: 0;
  border-radius: 50%;
  font-size: 20px; line-height: 28px;
  color: var(--cinnabar);
  background: #fff8e6;
}
.date-select {
  flex: 0 0 auto;
  min-width: 160px;
}
.date-hint { font-size: 12px; color: var(--ink-soft); }

/* ========== 登录/注册页保持原卡片版 ========== */
.auth-wrap { flex: 1; display: grid; place-items: center; padding: 40px 16px; }
.auth-card {
  width: min(560px, 96vw);
  background: rgba(255, 248, 226, 0.85);
  border: 1px solid var(--gold);
  border-radius: var(--radius-md);
  padding: 32px 36px;
  box-shadow: 0 8px 24px var(--shadow);
  position: relative;
}
.auth-card::before {
  content: "周易运势";
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-brush);
  font-size: 28px; color: var(--cinnabar);
  background: var(--paper); padding: 0 16px;
}
.auth-card h2 {
  font-family: var(--font-brush);
  text-align: center;
  font-size: 24px; margin: 6px 0 20px;
  letter-spacing: 4px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-row label { font-size: 13px; color: var(--ink-soft); letter-spacing: 1px; }
.form-row .hint { font-size: 12px; color: var(--ink-soft); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tab-bar { display: flex; border-bottom: 1px solid var(--paper-deep); margin-bottom: 18px; }
.tab-bar button {
  flex: 1; background: transparent; border: none; padding: 10px;
  color: var(--ink-soft); box-shadow: none; border-bottom: 2px solid transparent; border-radius: 0;
}
.tab-bar button.active { color: var(--cinnabar); border-bottom-color: var(--cinnabar); background: transparent; }
.submit-row { margin-top: 8px; display: flex; justify-content: center; }
.submit-row button { min-width: 160px; font-size: 16px; letter-spacing: 4px; }
.alert { padding: 8px 12px; border-radius: var(--radius-sm); margin-bottom: 12px; font-size: 13px; }
.alert.error { background: #fde8e8; color: #8a1a1a; border: 1px solid #e4a5a5; }
.alert.ok { background: #e9f2e6; color: #4f6b47; border: 1px solid #a9c4a4; }

/* ========== 对话页（核心） ========== */
.chat-page .page { height: 100dvh; overflow: hidden; }

.chat-layout {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 16px;
  padding: 16px 24px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
}
.sidebar {
  padding: 14px;
  background: rgba(255, 248, 226, 0.6);
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-md);
  height: fit-content;
  align-self: flex-start;
}
.sidebar h3 { margin: 0 0 10px; font-family: var(--font-brush); color: var(--cinnabar); letter-spacing: 3px; }
.bazi-card p { margin: 4px 0; font-size: 14px; color: var(--ink-soft); }
.bazi-card .small { font-size: 12px; }
.bazi-card .tip { margin-top: 10px; font-size: 12px; color: var(--ink-soft); line-height: 1.6; }
.bazi-pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin: 10px 0; }
.bazi-pillars .pillar {
  border: 1px solid var(--gold); border-radius: var(--radius-sm);
  text-align: center; padding: 6px 0; background: #fbf4dd;
}
.bazi-pillars .pillar .label { font-size: 11px; color: var(--ink-soft); }
.bazi-pillars .pillar .val { font-size: 18px; color: var(--cinnabar); font-weight: 700; }

.chat-area {
  display: flex; flex-direction: column;
  min-height: 0; /* 允许内部 scroll 正常工作 */
  background: rgba(255, 248, 226, 0.7);
  border: 1px solid var(--paper-deep);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}
.chat-scroll {
  flex: 1 1 auto; min-height: 0;
  overflow-y: auto; overflow-x: hidden;
  padding: 24px 24px 20px 64px;
  display: flex; flex-direction: column; gap: 16px;
  -webkit-overflow-scrolling: touch;
}

.msg {
  max-width: 78%;
  padding: 12px 16px;
  border-radius: 12px;
  box-shadow: 0 1px 2px var(--shadow);
  white-space: normal;
  word-break: break-word;
  line-height: 1.8;
  position: relative;
}
.msg.user {
  align-self: flex-end;
  background: linear-gradient(180deg, #fff2cc, #f3dc92);
  border: 1px solid var(--gold); color: var(--ink);
}
.msg.user .msg-body p { margin: 6px 0; }
.msg.user .msg-body p:first-child { margin-top: 0; }
.msg.user .msg-body p:last-child { margin-bottom: 0; }
.msg.user .msg-body strong { color: var(--ink); font-weight: 700; }
.msg.assistant {
  align-self: flex-start;
  background: linear-gradient(180deg, #fffaf0, #f9edc8);
  border: 1px solid var(--paper-deep);
}
.msg.assistant::before {
  content: "卦";
  position: absolute; left: -44px; top: 2px;
  width: 34px; height: 34px;
  background: var(--cinnabar);
  color: #fff8e6;
  font-family: var(--font-brush);
  font-size: 20px;
  display: grid; place-items: center;
  border-radius: 4px;
  box-shadow: 0 2px 4px var(--shadow);
  transform: rotate(-4deg);
}
.msg .src {
  margin-top: 8px; font-size: 11px; color: var(--ink-soft);
  border-top: 1px dashed var(--paper-deep); padding-top: 6px;
}
.msg .msg-body p:first-child { margin-top: 0; }
.msg .msg-body p:last-child { margin-bottom: 0; }
.msg .msg-body p { margin: 8px 0; }
.msg .msg-body h1, .msg .msg-body h2, .msg .msg-body h3, .msg .msg-body h4 {
  font-family: var(--font-brush);
  color: var(--cinnabar);
  letter-spacing: 2px;
  margin: 10px 0 6px;
}
.msg .msg-body strong { color: var(--cinnabar); }
.msg .msg-body em { color: var(--jade); font-style: normal; border-bottom: 1px dotted var(--jade); }
.msg .msg-body code {
  background: rgba(184, 138, 60, 0.15);
  padding: 1px 5px; border-radius: 3px;
  font-family: "SF Mono", Menlo, monospace; font-size: 13px;
}
.msg .msg-body pre {
  background: rgba(43, 30, 20, 0.05);
  padding: 10px 12px; border-radius: 6px;
  overflow-x: auto; border-left: 3px solid var(--cinnabar);
}
.msg .msg-body pre code { background: transparent; padding: 0; }
.msg .msg-body ul, .msg .msg-body ol { padding-left: 22px; margin: 8px 0; }
.msg .msg-body li { margin: 4px 0; }
.msg .msg-body blockquote {
  margin: 8px 0; padding: 4px 12px;
  border-left: 3px solid var(--gold);
  background: rgba(184, 138, 60, 0.08);
  color: var(--ink-soft);
}
.msg .typing { display: inline-block; animation: blink 1s infinite; color: var(--ink-soft); }
@keyframes blink { 50% { opacity: 0.2; } }

/* 输入坞（底部固定） */
.input-dock {
  flex-shrink: 0;
  border-top: 1px solid var(--paper-deep);
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom)) 14px;
  display: flex; align-items: flex-end; gap: 10px;
  background: rgba(255, 248, 226, 0.95);
  position: relative;
  z-index: 5;
}
.input-dock textarea {
  flex: 1 1 auto;
  resize: none;
  min-height: 40px; max-height: 160px;
  line-height: 1.5;
  padding: 9px 12px;
}
.input-dock .send-btn {
  flex: 0 0 auto;
  min-width: 70px;
  height: 40px;
  font-weight: 600; letter-spacing: 2px;
}

/* 左下角菜单按钮 */
.dock-left { position: relative; flex: 0 0 auto; }
.dock-btn {
  width: 44px; height: 44px; padding: 0;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: linear-gradient(180deg, #fffaf0 0%, #f0deaa 100%);
  box-shadow: 0 2px 4px var(--shadow);
  display: grid; place-items: center;
  color: var(--cinnabar);
}
.dock-btn:hover:not(:disabled) {
  background: linear-gradient(180deg, #fff2cc 0%, #e6c980 100%);
  color: var(--cinnabar);
}
.dock-menu {
  position: absolute;
  bottom: calc(100% + 8px); left: 0;
  min-width: 220px;
  background: rgba(255, 248, 226, 0.98);
  border: 1px solid var(--gold);
  border-radius: 12px;
  box-shadow: 0 8px 24px var(--shadow);
  padding: 6px;
  display: flex; flex-direction: column; gap: 2px;
  z-index: 20;
}
.dock-menu[hidden] { display: none; }
.dock-menu::after {
  /* 小三角 */
  content: ""; position: absolute;
  bottom: -7px; left: 16px;
  width: 12px; height: 12px;
  background: rgba(255,248,226,0.98);
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
}
.dock-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  border: none; box-shadow: none;
  background: transparent;
  color: var(--ink);
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}
.dock-item:hover { background: rgba(138, 26, 26, 0.08); color: var(--ink); }
.dock-item .emoji { font-size: 22px; width: 32px; text-align: center; flex: 0 0 auto; }
.dock-item > span:last-child { display: flex; flex-direction: column; line-height: 1.3; }
.dock-item small { font-size: 11px; color: var(--ink-soft); }

/* 欢迎 & chip */
.welcome { text-align: center; color: var(--ink-soft); margin: auto 0; padding: 20px; }
.welcome .big { font-family: var(--font-brush); font-size: 40px; color: var(--cinnabar); letter-spacing: 8px; margin-bottom: 8px; }
.welcome .chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 18px; }
.welcome .chip {
  padding: 6px 14px;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  border-radius: 999px; font-size: 14px; cursor: pointer;
  background: rgba(255, 248, 226, 0.5);
  transition: all .2s;
}
.welcome .chip:hover { background: var(--cinnabar); color: #fff8e6; }

/* 个人中心 */
.profile-card {
  max-width: 760px;
  margin: 28px auto;
  background: rgba(255, 248, 226, 0.85);
  border: 1px solid var(--gold);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: 0 8px 24px var(--shadow);
}
.profile-card h2 { font-family: var(--font-brush); color: var(--cinnabar); letter-spacing: 4px; margin-top: 0; }
.profile-card section { border-top: 1px dashed var(--paper-deep); padding-top: 18px; margin-top: 18px; }

/* ==================== 响应式（H5） ==================== */
@media (max-width: 820px) {
  :root { --header-h: 52px; --date-h: 40px; }
  .header { padding: 0 12px; }
  .brand .title { font-size: 22px; letter-spacing: 2px; }
  .brand .subtitle { display: none; }
  .nav a { font-size: 13px; padding: 4px 6px; }

  .date-bar { padding: 4px 12px; }
  .date-hint { display: none; }

  .chat-layout {
    grid-template-columns: 1fr;
    padding: 0;
    gap: 0;
  }
  .sidebar {
    border-radius: 0;
    border-left: none; border-right: none; border-top: none;
    padding: 10px 12px;
  }
  .sidebar h3 { font-size: 14px; margin: 0 0 6px; letter-spacing: 2px; }
  .bazi-card p { font-size: 12px; margin: 2px 0; }
  .bazi-card .tip { display: none; }
  .bazi-pillars .pillar .val { font-size: 15px; }
  .bazi-pillars .pillar .label { font-size: 10px; }
  .bazi-pillars { margin: 6px 0; }

  .chat-area { border-radius: 0; border-left: none; border-right: none; }
  .chat-scroll {
    padding: 14px 12px 14px 56px;
  }
  .msg { max-width: 88%; font-size: 15px; }
  .msg.assistant::before { left: -40px; top: 0; }

  .input-dock { padding: 8px 10px calc(8px + env(safe-area-inset-bottom)) 10px; gap: 6px; }
  .input-dock .send-btn { min-width: 60px; padding: 8px 12px; }
  .dock-btn { width: 40px; height: 40px; }
  .dock-menu { min-width: 200px; }

  .welcome .big { font-size: 32px; letter-spacing: 4px; }
}

/* 极窄屏 */
@media (max-width: 380px) {
  .brand .title { font-size: 20px; }
  .date-select { min-width: 140px; font-size: 13px; }
  .msg { max-width: 92%; }
}