/* 卜卜 · 少女国风 v3
 * 色卡：胭脂 / 玉兰 / 桃粉 / 月白 / 香槟金
 * 质感：柔和宣纸 + 玻璃拟态 + 有机曲线 + 微动效
 */
@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500;600&family=Ma+Shan+Zheng&family=ZCOOL+XiaoWei&display=swap");

:root {
  /* 墨 · 温度降低 */
  --ink-900: #3a2230;
  --ink-800: #4d2e3f;
  --ink-700: #6b4153;
  --ink-500: #8d6878;
  --ink-400: #b18d9c;
  --ink-300: #d1b6bf;

  /* 胭脂 / 桃粉 主色 */
  --rose: #c44771;        /* 胭脂 */
  --rose-deep: #9a2f55;
  --rose-soft: #e27694;
  --brand-rgb: 196, 71, 113;       /* 主色 RGB 三元组，用于 rgba 动态透明度 */
  --rose-ghost: rgba(var(--brand-rgb), 0.08);
  --peach: #f9bfb0;        /* 桃 */
  --peach-deep: #eb8f83;
  --blush: #fde1e0;

  /* 月白 / 玉兰 */
  --moon: #fdf6f3;
  --moon-soft: #fbeae4;
  --jade-soft: #b8d0c6;

  /* 香槟金点缀 */
  --gold: #d9b58f;
  --gold-deep: #b8915e;
  --gold-soft: #f0d9b4;

  /* 薰衣草点缀 */
  --lavender: #c9a7d9;

  /* 阴影（更柔） */
  --shadow-sm: 0 1px 3px rgba(152, 72, 96, 0.08);
  --shadow-md: 0 6px 20px rgba(152, 72, 96, 0.12);
  --shadow-lg: 0 18px 50px rgba(152, 72, 96, 0.18);
  --shadow-glow: 0 0 0 4px rgba(var(--brand-rgb), 0.12);

  /* 表面色（主题可覆盖的"白色附近"色，用于头部、输入坞、输入框、按钮底色等） */
  --surface-header:    rgba(255, 250, 247, 0.8);
  --surface-date:      rgba(255, 245, 238, 0.55);
  --surface-strip-top: rgba(253, 236, 232, 0.4);
  --surface-strip-bot: rgba(255, 248, 245, 0.95);
  --surface-dock:      rgba(255, 250, 247, 0.95);
  --surface-input:     #fffaf7;
  --surface-msg-end:   #fff5f0;
  --surface-btn-end:   #fde7ea;
  --surface-card-end:    rgba(255, 245, 238, 0.85);
  --surface-sidebar-end: rgba(255, 235, 230, 0.7);
  --surface-chat-end:    rgba(253, 236, 232, 0.8);
  --surface-pre-bg:      rgba(255, 245, 238, 0.8);
  --surface-modal-end:   rgba(255, 240, 235, 0.9);
  --modal-backdrop:      rgba(61, 30, 45, 0.4);

  --radius-xs: 4px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --radius-blob: 40% 60% 60% 40% / 50% 40% 60% 50%;

  --font-cn: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-title: "ZCOOL XiaoWei", "STZhongsong", "KaiTi", serif;
  --font-brush: "Ma Shan Zheng", "STKaiti", "Kaiti SC", "楷体", serif;

  --header-h: 60px;
  --date-h: 46px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
html { -webkit-text-size-adjust: 100%; }

body {
  color: var(--ink-800);
  font-family: var(--font-cn);
  font-size: 15.5px;
  line-height: 1.78;
  background:
    radial-gradient(1300px 900px at 5% 0%, #ffe9e2 0%, transparent 55%),
    radial-gradient(1000px 800px at 100% 10%, #f8dfe8 0%, transparent 50%),
    radial-gradient(900px 900px at 50% 100%, #fff2e8 0%, transparent 55%),
    linear-gradient(180deg, #fff5ee 0%, #fce3e0 100%);
  background-attachment: fixed;  /* 防止长页面滚动时背景被切成两段 */
  min-height: 100dvh;
  overflow-x: hidden;
  letter-spacing: 0.2px;
}

/* 细腻网点纸纹 */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(var(--brand-rgb), 0.025) 0, transparent 1.5px),
    radial-gradient(circle at 70% 70%, rgba(184, 145, 94, 0.02) 0, transparent 2px);
  background-size: 12px 12px, 16px 16px;
  opacity: 0.9;
}

/* 两团柔色氤氲 */
body::after {
  content: ""; position: fixed; z-index: 0; pointer-events: none;
  width: 420px; height: 420px;
  right: -140px; bottom: -140px;
  background: radial-gradient(closest-side, rgba(var(--brand-rgb), 0.14) 0%, transparent 75%);
  filter: blur(10px);
  animation: floatA 18s ease-in-out infinite alternate;
}
@keyframes floatA { from { transform: translate(0,0) } to { transform: translate(-40px, -30px) } }

/* 飘落小樱花（仅桌面） */
.sakura {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  overflow: hidden;
}
.sakura span {
  position: absolute; top: -30px;
  font-size: 14px;
  opacity: .55;
  animation: fall linear infinite;
  will-change: transform;
}
.sakura span:nth-child(1) { left: 8%;  animation-duration: 18s; animation-delay: -2s; font-size: 16px; }
.sakura span:nth-child(2) { left: 22%; animation-duration: 22s; animation-delay: -8s; font-size: 12px; }
.sakura span:nth-child(3) { left: 38%; animation-duration: 26s; animation-delay: -14s; font-size: 18px; }
.sakura span:nth-child(4) { left: 54%; animation-duration: 20s; animation-delay: -6s; font-size: 13px; }
.sakura span:nth-child(5) { left: 72%; animation-duration: 24s; animation-delay: -11s; font-size: 15px; }
.sakura span:nth-child(6) { left: 88%; animation-duration: 21s; animation-delay: -3s; font-size: 14px; }
@keyframes fall {
  0%   { transform: translateY(-40px) rotate(0deg);   opacity: 0; }
  10%  { opacity: .55; }
  90%  { opacity: .55; }
  100% { transform: translateY(110vh) rotate(360deg); opacity: 0; }
}
@media (max-width: 820px) { .sakura span:nth-child(n+4) { display: none; } }
@media (prefers-reduced-motion: reduce) { .sakura { display: none; } }

/* --- 输入元素 --- */
a { color: var(--rose); text-decoration: none; transition: color .2s; }
a:hover { color: var(--rose-deep); }

button {
  cursor: pointer;
  font-family: var(--font-cn);
  font-size: 14.5px;
  padding: 10px 20px;
  border: 1px solid var(--rose-soft);
  background: linear-gradient(180deg, #fff 0%, var(--surface-btn-end) 100%);
  color: var(--rose-deep);
  border-radius: var(--radius-pill);
  transition: all .25s var(--ease-out);
  box-shadow: var(--shadow-sm);
  letter-spacing: 1px;
  font-weight: 500;
}
button:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  border-color: var(--rose-deep);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
button:active:not(:disabled) { transform: translateY(0) scale(0.98); box-shadow: var(--shadow-sm); }
button:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

input, textarea, select {
  font-family: var(--font-cn);
  font-size: 15px;
  padding: 11px 16px;
  border: 1px solid rgba(var(--brand-rgb), 0.18);
  background: var(--surface-input);
  border-radius: var(--radius-sm);
  color: var(--ink-800);
  outline: none;
  transition: border-color .25s, box-shadow .25s, background .25s;
  line-height: 1.6;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--rose-soft);
  box-shadow: var(--shadow-glow);
  background: #fff;
}
input::placeholder, textarea::placeholder { color: var(--ink-300); }

/* --- 页面骨架 --- */
.page {
  position: relative; z-index: 1;
  min-height: 100dvh;
  display: flex; flex-direction: column;
  animation: page-in .4s var(--ease-out);
}
@keyframes page-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.header {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px;
  background: var(--surface-header);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid rgba(var(--brand-rgb), 0.1);
  flex-shrink: 0;
  position: relative; z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand .title {
  font-family: var(--font-brush);
  font-size: 32px;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 50%, var(--gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 4px;
  filter: drop-shadow(0 1px 0 rgba(255,255,255,0.4));
  position: relative;
  padding-right: 22px;
}
.brand .title::after {
  content: "✿";
  position: absolute; right: 0; top: 4px;
  font-size: 14px;
  color: var(--rose);
  -webkit-text-fill-color: var(--rose);
  animation: bloom 3s ease-in-out infinite;
}
@keyframes bloom {
  0%, 100% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(15deg) scale(1.15); }
}
.brand .subtitle { font-size: 12px; color: var(--ink-400); letter-spacing: 3px; }

.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  color: var(--ink-500);
  font-size: 14px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  transition: all .25s var(--ease-out);
  position: relative;
}
.nav a:hover { background: var(--rose-ghost); color: var(--rose-deep); transform: translateY(-1px); }
.nav a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-soft) 100%);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

/* 日期条 */
.date-bar {
  display: flex; align-items: center; justify-content: center;
  gap: 14px;
  padding: 10px 24px;
  height: var(--date-h);
  background: var(--surface-date);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(var(--brand-rgb), 0.08);
  flex-shrink: 0;
}

/* 三联胶囊：一个整体容器，左按钮 / 下拉 / 右按钮 贴合为一体 */
.date-picker {
  display: inline-flex;
  align-items: stretch;           /* 高度统一 */
  background: #fff;
  border: 1px solid rgba(var(--brand-rgb), 0.18);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  height: 34px;
  transition: box-shadow .25s, border-color .25s;
}
.date-picker:hover { box-shadow: var(--shadow-md); border-color: var(--rose-soft); }

.date-nav {
  width: 34px; height: 34px;
  padding: 0; margin: 0;
  border: none;
  background: transparent;
  color: var(--rose-deep);
  font-size: 18px; line-height: 1; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 0;
  box-shadow: none;
  transition: all .2s;
  flex: 0 0 34px;
}
.date-nav:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  transform: none;
  box-shadow: none;
}
.date-nav:active { transform: scale(0.9); }

.date-select-wrap {
  position: relative;
  display: inline-flex; align-items: center;
  border-left: 1px solid rgba(var(--brand-rgb), 0.1);
  border-right: 1px solid rgba(var(--brand-rgb), 0.1);
  background: transparent;
}

.date-select {
  flex: 0 0 auto;
  min-width: 180px;
  height: 32px;
  padding: 0 34px 0 18px;     /* 右边留箭头位置 */
  font-weight: 500;
  font-size: 14.5px;
  color: var(--ink-800);
  text-align: center;
  text-align-last: center;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 0;
  box-shadow: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  letter-spacing: 1px;
  line-height: 32px;
}
.date-select:focus {
  box-shadow: none;
  background: var(--rose-ghost);
}
.date-select-caret {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--rose);
  font-size: 12px;
  line-height: 1;
  transition: transform .2s;
}
.date-select-wrap:hover .date-select-caret { transform: translateY(-50%) scale(1.15); }

.date-hint { font-size: 12px; color: var(--ink-400); letter-spacing: 1px; }

/* --- 登录卡片 --- */
.auth-wrap { flex: 1; display: grid; place-items: center; padding: 48px 16px; }
.auth-card {
  width: min(520px, 96vw);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.75) 0%, var(--surface-card-end) 100%);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  padding: 48px 42px 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: card-in .5s var(--ease-out);
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.auth-card::before {
  content: "卜卜";
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-brush);
  font-size: 28px;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  padding: 4px 22px;
  letter-spacing: 5px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  border: 2px solid #fff;
}
.auth-card h2 {
  font-family: var(--font-title);
  text-align: center;
  font-size: 22px;
  margin: 14px 0 26px;
  letter-spacing: 8px;
  color: var(--ink-700);
  font-weight: 500;
}
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-row label { font-size: 12.5px; color: var(--ink-500); letter-spacing: 2px; font-weight: 500; }
.form-row .hint { font-size: 11.5px; color: var(--ink-400); letter-spacing: 0.5px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.tab-bar {
  display: flex;
  background: rgba(var(--brand-rgb), 0.08);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: 22px;
  gap: 2px;
}
.tab-bar button {
  flex: 1;
  background: transparent;
  border: none;
  padding: 9px 0;
  color: var(--ink-500);
  box-shadow: none;
  border-radius: var(--radius-pill);
  letter-spacing: 4px;
  font-size: 14px;
}
.tab-bar button:hover:not(:disabled) {
  background: transparent; color: var(--rose-deep); transform: none; box-shadow: none;
}
.tab-bar button.active {
  background: #fff;
  color: var(--rose-deep);
  box-shadow: var(--shadow-sm);
  font-weight: 500;
}

.submit-row { margin-top: 22px; display: flex; justify-content: center; }
.submit-row button {
  min-width: 200px; padding: 13px 28px;
  font-size: 15px; letter-spacing: 8px; font-weight: 500;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff; border-color: var(--rose-deep);
  box-shadow: 0 8px 20px rgba(var(--brand-rgb), 0.28);
}
.submit-row button:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--rose-deep) 0%, #711f3e 100%);
  box-shadow: 0 12px 28px rgba(var(--brand-rgb), 0.36);
  transform: translateY(-3px);
}

.alert {
  padding: 10px 14px; border-radius: var(--radius-sm);
  margin-bottom: 14px; font-size: 13px; text-align: center;
  animation: slide-in-top .3s var(--ease-out);
}
@keyframes slide-in-top { from {opacity:0; transform: translateY(-6px)} to {opacity:1; transform: translateY(0)} }
.alert.error { background: #fde6ea; color: var(--rose-deep); border: 1px solid #f0b5c0; }
.alert.ok { background: #e9f6ee; color: #4a6b49; border: 1px solid #b0d2b3; }

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

.chat-layout {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  padding: 20px 26px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
}

/* 侧栏 */
.sidebar {
  padding: 22px 18px 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.85) 0%, var(--surface-sidebar-end) 100%);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  height: fit-content;
  align-self: flex-start;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.sidebar::before {
  content: "";
  position: absolute; top: -50px; right: -50px;
  width: 140px; height: 140px;
  background: radial-gradient(closest-side, rgba(var(--brand-rgb), 0.18) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(6px);
  pointer-events: none;
}
.sidebar h3 {
  margin: 0 0 10px;
  font-family: var(--font-brush);
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 5px;
  text-align: center;
  font-size: 22px;
  font-weight: 400;
  position: relative;
}

/* 折叠按钮（整个头部可点） */
.sidebar-toggle {
  width: 100%;
  display: flex; align-items: center; justify-content: center;
  gap: 10px;
  padding: 4px 8px 6px;
  background: transparent;
  border: none;
  box-shadow: none;
  color: inherit;
  cursor: pointer;
  font-family: var(--font-brush);
  font-size: 22px;
  letter-spacing: 5px;
  border-radius: var(--radius-sm);
  transition: background .2s;
}
.sidebar-toggle:hover:not(:disabled) {
  background: rgba(var(--brand-rgb), 0.06);
  color: inherit;
  transform: none;
  box-shadow: none;
}
.sidebar-toggle .st-title {
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sidebar-toggle .st-arrow {
  color: var(--rose);
  -webkit-text-fill-color: var(--rose);
  font-size: 15px;
  transition: transform .28s var(--ease-out);
  display: none; /* 桌面端隐藏箭头（默认一直展开） */
  line-height: 1;
}
.sidebar-body {
  overflow: hidden;
  transition: max-height .32s var(--ease-out), opacity .25s, margin-top .25s;
  max-height: 600px;
  opacity: 1;
  margin-top: 4px;
}
.sidebar.collapsed .sidebar-body {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
}
.sidebar.collapsed .sidebar-toggle .st-arrow { transform: rotate(-90deg); }
.bazi-card p { margin: 4px 0; font-size: 13px; color: var(--ink-500); text-align: center; position: relative; }
.bazi-card .small { font-size: 11.5px; letter-spacing: 0.5px; }
.bazi-card .tip {
  margin-top: 14px; font-size: 11.5px; color: var(--ink-400);
  line-height: 1.65; text-align: center;
  padding-top: 12px;
  border-top: 1px dashed rgba(var(--brand-rgb), 0.18);
  position: relative;
}

.bazi-pillars {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 8px; margin: 14px 2px;
  position: relative;
}
.bazi-pillars .pillar {
  border: 1px solid rgba(var(--brand-rgb), 0.18);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 10px 0 8px;
  background: linear-gradient(180deg, #fff 0%, var(--surface-msg-end) 100%);
  box-shadow: 0 2px 6px rgba(var(--brand-rgb), 0.08);
  transition: all .25s var(--ease-out);
}
.bazi-pillars .pillar:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 18px rgba(var(--brand-rgb), 0.15);
  border-color: var(--rose-soft);
}
.bazi-pillars .pillar .label {
  font-size: 10.5px; color: var(--ink-400);
  letter-spacing: 2px; display: block; margin-bottom: 3px;
}
.bazi-pillars .pillar .val {
  font-size: 21px;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
  font-family: var(--font-brush);
  letter-spacing: 1px;
}

/* 对话区 */
.chat-area {
  display: flex; flex-direction: column; min-height: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.7) 0%, var(--surface-chat-end) 100%);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.chat-scroll {
  flex: 1 1 auto; min-height: 0;
  overflow-y: auto; overflow-x: hidden;
  padding: 30px 32px 24px 72px;
  display: flex; flex-direction: column; gap: 20px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--brand-rgb), 0.2) transparent;
  scroll-behavior: smooth;
}
.chat-scroll::-webkit-scrollbar { width: 6px; }
.chat-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--rose-soft), var(--peach));
  border-radius: 3px;
}
.chat-scroll::-webkit-scrollbar-track { background: transparent; }

/* 消息气泡 */
.msg {
  max-width: 80%;
  padding: 14px 18px;
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
  word-break: break-word;
  line-height: 1.85;
  position: relative;
  font-size: 15px;
  animation: msg-in .4s var(--ease-bounce);
  transform-origin: top;
}
@keyframes msg-in {
  0% { opacity: 0; transform: translateY(10px) scale(0.96); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.msg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--rose-soft) 0%, var(--rose) 100%);
  border: 1px solid rgba(255,255,255,0.6);
  color: #fff;
  border-bottom-right-radius: 6px;
  box-shadow: 0 6px 18px rgba(var(--brand-rgb), 0.22);
}
.msg.assistant {
  align-self: flex-start;
  background: linear-gradient(135deg, #fff 0%, var(--surface-msg-end) 100%);
  border: 1px solid rgba(255,255,255,0.7);
  padding-left: 20px;
  border-bottom-left-radius: 6px;
  box-shadow: 0 6px 18px rgba(152, 72, 96, 0.08);
}
.msg.assistant::before {
  content: "卦";
  position: absolute; left: -50px; top: -2px;
  width: 40px; height: 40px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4) 0%, transparent 50%),
    linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  font-family: var(--font-brush);
  font-size: 22px;
  display: grid; place-items: center;
  border-radius: 50% 50% 50% 12px;
  box-shadow: 0 6px 16px rgba(var(--brand-rgb), 0.35), inset 0 1px 0 rgba(255,255,255,0.25);
  transform: rotate(-6deg);
  letter-spacing: 0;
  border: 2px solid #fff;
  transition: transform .35s var(--ease-bounce);
}
.msg.assistant:hover::before {
  transform: rotate(0deg) scale(1.1);
}
.msg .src {
  margin-top: 10px; font-size: 11px; color: var(--ink-400);
  border-top: 1px dashed rgba(var(--brand-rgb), 0.18);
  padding-top: 8px;
  letter-spacing: 1px;
}

/* markdown */
.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-title);
  color: var(--rose-deep);
  letter-spacing: 2px;
  margin: 14px 0 8px;
  font-weight: 500;
}
.msg .msg-body strong { color: var(--rose-deep); font-weight: 600; }
.msg .msg-body em { color: #6b8f6f; font-style: normal; border-bottom: 1px dashed #9bb89e; padding-bottom: 1px; }
.msg .msg-body code {
  background: rgba(var(--brand-rgb), 0.1);
  padding: 1px 6px; border-radius: var(--radius-xs);
  font-family: "SF Mono", Menlo, monospace; font-size: 13px;
  color: var(--rose-deep);
}
.msg .msg-body pre {
  background: var(--surface-pre-bg);
  padding: 12px 14px; border-radius: var(--radius-sm);
  overflow-x: auto; border-left: 3px solid var(--rose);
}
.msg .msg-body pre code { background: transparent; padding: 0; }
.msg .msg-body ul, .msg .msg-body ol { padding-left: 24px; margin: 8px 0; }
.msg .msg-body li { margin: 4px 0; }
.msg .msg-body blockquote {
  margin: 10px 0; padding: 6px 14px;
  border-left: 3px solid var(--gold);
  background: rgba(217, 181, 143, 0.14);
  color: var(--ink-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.msg .msg-body hr { border: none; border-top: 1px dashed rgba(var(--brand-rgb), 0.2); margin: 14px 0; }

.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: #fff; font-weight: 700; text-shadow: 0 1px 0 rgba(0,0,0,0.1); }
.msg.user .msg-body em { color: #fff2; border-bottom-color: rgba(255,255,255,0.4); }
.msg.user .msg-body code { background: rgba(255,255,255,0.22); color: #fff; }

.msg .typing {
  display: inline-block; color: var(--ink-400); font-size: 14px;
  animation: breath 1.4s ease-in-out infinite;
}
@keyframes breath { 0%,100% {opacity:1} 50% {opacity: 0.35} }

/* 占卜横向条 */
.divination-strip {
  flex-shrink: 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 12px 20px;
  border-top: 1px solid rgba(var(--brand-rgb), 0.1);
  background: linear-gradient(180deg, var(--surface-strip-top) 0%, var(--surface-strip-bot) 100%);
  backdrop-filter: blur(8px);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: relative;
  z-index: 5;
}
.divination-strip::-webkit-scrollbar { display: none; }

.div-chip {
  flex: 0 0 auto;
  padding: 9px 18px 9px 14px;
  border: 1px solid rgba(var(--brand-rgb), 0.2);
  background: linear-gradient(135deg, #fff 0%, var(--blush) 100%);
  color: var(--rose-deep);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  letter-spacing: 2px;
  box-shadow: var(--shadow-sm);
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .25s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.div-chip::before {
  /* 反光带 */
  content: "";
  position: absolute; top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  transition: left .6s;
}
.div-chip:hover:not(:disabled)::before { left: 150%; }
.div-chip:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  border-color: var(--rose-deep);
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(var(--brand-rgb), 0.28);
}
.div-chip:active { transform: translateY(-1px) scale(0.97); }
.div-chip .emoji { font-size: 16px; filter: drop-shadow(0 1px 0 rgba(255,255,255,0.3)); }

/* 输入坞 */
.input-dock {
  flex-shrink: 0;
  border-top: 1px solid rgba(var(--brand-rgb), 0.1);
  padding: 14px 18px calc(14px + env(safe-area-inset-bottom)) 18px;
  display: flex; align-items: flex-end; gap: 12px;
  background: var(--surface-dock);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 5;
}
.input-dock textarea {
  flex: 1 1 auto;
  resize: none;
  min-height: 46px; max-height: 160px;
  line-height: 1.55;
  padding: 12px 16px;
  border-radius: var(--radius-md);
}
.input-dock .send-btn {
  flex: 0 0 auto;
  min-width: 88px;
  height: 46px;
  font-weight: 600;
  letter-spacing: 6px;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  border-color: var(--rose-deep);
  box-shadow: 0 6px 16px rgba(var(--brand-rgb), 0.28);
  border-radius: var(--radius-md);
}
.input-dock .send-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--rose-deep) 0%, #711f3e 100%);
  box-shadow: 0 10px 22px rgba(var(--brand-rgb), 0.38);
}

/* 欢迎区 */
.welcome { text-align: center; color: var(--ink-500); margin: auto 0; padding: 40px 20px; }
.welcome .big {
  font-family: var(--font-brush);
  font-size: 52px;
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 60%, var(--gold-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 14px;
  margin-bottom: 14px;
  animation: welcome-shimmer 6s ease-in-out infinite;
  background-size: 200% 100%;
}
@keyframes welcome-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.welcome > div:nth-child(2) {
  font-size: 14px; color: var(--ink-400); letter-spacing: 4px;
  margin-bottom: 32px;
}
.welcome .chips {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  max-width: 680px; margin: 0 auto;
}
.welcome .chip {
  padding: 9px 20px;
  border: 1px solid rgba(var(--brand-rgb), 0.22);
  color: var(--rose-deep);
  border-radius: var(--radius-pill);
  font-size: 14px; cursor: pointer;
  background: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, var(--blush) 100%);
  letter-spacing: 1.5px;
  transition: all .25s var(--ease-out);
  box-shadow: var(--shadow-sm);
}
.welcome .chip:hover {
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff;
  border-color: var(--rose-deep);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 22px rgba(var(--brand-rgb), 0.28);
}

/* --- 占卜询问弹窗 --- */
.modal {
  position: fixed; inset: 0;
  background: var(--modal-backdrop);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
  padding: 16px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: modal-fade .25s var(--ease-out);
}
.modal[hidden] { display: none; }
@keyframes modal-fade { from {opacity: 0} to {opacity: 1} }
.modal-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, var(--surface-modal-end) 100%);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  padding: 30px 28px 22px;
  width: min(460px, 100%);
  box-shadow: var(--shadow-lg);
  animation: modal-in .35s var(--ease-bounce);
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(14px) scale(0.94); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-card h3 {
  font-family: var(--font-brush);
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 4px;
  margin: 0 0 12px;
  font-size: 24px;
  text-align: center;
  font-weight: 400;
}
.modal-hint {
  font-size: 12.5px; color: var(--ink-500);
  margin: 0 0 18px; line-height: 1.75;
  text-align: center;
  letter-spacing: 0.5px;
}
.modal textarea { width: 100%; resize: vertical; min-height: 96px; }
.modal-actions {
  display: flex; justify-content: center; gap: 12px; margin-top: 20px;
}
.modal-actions button {
  min-width: 104px; padding: 11px 22px;
  letter-spacing: 5px; font-size: 14px;
}
.btn-ghost {
  background: transparent; border: 1px solid rgba(var(--brand-rgb), 0.2);
  color: var(--ink-500); box-shadow: none;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--rose-ghost); color: var(--rose-deep);
  border-color: var(--rose-soft);
}
.btn-primary {
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  color: #fff; border-color: var(--rose-deep);
  box-shadow: 0 6px 16px rgba(var(--brand-rgb), 0.28);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--rose-deep) 0%, #711f3e 100%);
  box-shadow: 0 10px 22px rgba(var(--brand-rgb), 0.38);
}

/* --- 个人中心 --- */
.profile-card {
  max-width: 760px; margin: 40px auto;
  background: linear-gradient(180deg, rgba(255,255,255,0.85) 0%, var(--surface-sidebar-end) 100%);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow-lg);
  animation: card-in .5s var(--ease-out);
}
.profile-card h2 {
  font-family: var(--font-brush);
  background: linear-gradient(135deg, var(--rose) 0%, var(--rose-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 6px;
  margin: 0 0 8px;
  text-align: center;
  font-size: 28px;
  font-weight: 400;
}
.profile-card h3 {
  font-family: var(--font-title);
  color: var(--ink-700);
  letter-spacing: 4px;
  margin-top: 0;
  font-weight: 500;
  font-size: 17px;
}
.profile-card section {
  border-top: 1px dashed rgba(var(--brand-rgb), 0.15);
  padding-top: 24px; margin-top: 24px;
}

footer {
  text-align: center; font-size: 12px; color: var(--ink-400);
  padding: 18px; letter-spacing: 3px;
  border-top: 1px dashed rgba(var(--brand-rgb), 0.1);
}

/* ==================== 响应式 H5 ==================== */
@media (max-width: 820px) {
  :root { --header-h: 54px; --date-h: 42px; }
  body { font-size: 15px; }
  .header { padding: 0 14px; }
  .brand .title { font-size: 25px; letter-spacing: 3px; }
  .brand .subtitle { display: none; }
  .nav a { font-size: 13px; padding: 5px 12px; }

  .date-bar { padding: 6px 12px; gap: 6px; }
  .date-picker { height: 32px; }
  .date-nav { width: 32px; height: 32px; flex: 0 0 32px; font-size: 17px; }
  .date-select {
    min-width: 150px; height: 30px; line-height: 30px;
    font-size: 13.5px; padding: 0 28px 0 14px;
  }
  .date-select-caret { right: 10px; font-size: 11px; }
  .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: 6px 14px 8px;
  }
  .sidebar::before { display: none; }
  .sidebar h3 { font-size: 16px; margin: 0 0 4px; letter-spacing: 3px; }
  .sidebar-toggle { font-size: 17px; letter-spacing: 3px; padding: 6px 10px; }
  .sidebar-toggle .st-arrow { display: inline-block; }
  /* H5 默认折叠；展开由 .expanded class 控制 */
  .sidebar .sidebar-body {
    max-height: 0; opacity: 0; margin-top: 0;
  }
  .sidebar.expanded .sidebar-body {
    max-height: 600px; opacity: 1; margin-top: 4px;
  }
  .sidebar.expanded .sidebar-toggle .st-arrow { transform: rotate(0deg); }
  .sidebar .sidebar-toggle .st-arrow { transform: rotate(-90deg); }
  .bazi-card p { font-size: 12px; margin: 2px 0; }
  .bazi-card .tip { display: none; }
  .bazi-pillars .pillar .val { font-size: 17px; }
  .bazi-pillars .pillar .label { font-size: 10px; }
  .bazi-pillars { margin: 8px 0; gap: 5px; }
  .bazi-pillars .pillar { padding: 6px 0 5px; border-radius: 12px; }

  .chat-area { border-radius: 0; border-left: none; border-right: none; border-top: 1px solid rgba(var(--brand-rgb), 0.1); }
  /* H5：气泡几乎顶满，左右只留一点内边距 + 印章空间 */
  .chat-scroll { padding: 14px 10px 14px 48px; gap: 12px; }
  .msg { max-width: calc(100% - 4px); font-size: 14.5px; padding: 11px 13px; border-radius: 16px; }
  .msg.assistant::before { left: -40px; top: 0; width: 32px; height: 32px; font-size: 18px; }

  .divination-strip { padding: 10px 12px; gap: 8px; }
  .div-chip { padding: 8px 14px 8px 12px; font-size: 13.5px; letter-spacing: 1.5px; }
  .input-dock { padding: 10px 10px calc(10px + env(safe-area-inset-bottom)) 10px; gap: 8px; }
  .input-dock .send-btn { min-width: 76px; height: 42px; letter-spacing: 4px; border-radius: 14px; }
  .input-dock textarea { min-height: 42px; padding: 10px 12px; border-radius: 14px; }

  .welcome { padding: 30px 16px; }
  .welcome .big { font-size: 38px; letter-spacing: 10px; }
  .welcome > div:nth-child(2) { font-size: 13px; letter-spacing: 3px; margin-bottom: 22px; }

  .auth-card { padding: 36px 24px 28px; border-radius: 20px; }
  .auth-card::before { font-size: 22px; }
  .auth-card h2 { font-size: 19px; letter-spacing: 5px; }

  .profile-card { margin: 20px 12px; padding: 26px 22px; border-radius: 20px; }
  .profile-card h2 { font-size: 23px; letter-spacing: 5px; }

  .modal-card { padding: 24px 20px 18px; border-radius: 20px; }
  .modal-card h3 { font-size: 21px; }
}

@media (max-width: 380px) {
  .brand .title { font-size: 22px; }
  .msg { max-width: calc(100% - 4px); }
  .date-select { min-width: 140px; }
}

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ============================================================
 * 男性向 · 玄墨松青主题（默认主题）
 * 色卡：玄青 + 墨黑 + 竹青 + 古铜金 + 米白青瓷
 * ============================================================ */
[data-theme="male"] {
  /* 墨色（偏冷） */
  --ink-900: #1b2a33;
  --ink-800: #2a3b47;
  --ink-700: #42566a;
  --ink-500: #6d8294;
  --ink-400: #95abbd;
  --ink-300: #bccfdd;

  /* 玄青主色（取代胭脂） */
  --rose: #2f4a5c;
  --rose-deep: #15273a;
  --rose-soft: #6f8ca1;
  --brand-rgb: 47, 74, 92;
  --rose-ghost: rgba(var(--brand-rgb), 0.08);

  /* 竹青 / 青瓷（取代桃粉） */
  --peach: #a8c5b5;
  --peach-deep: #7a9d85;
  --blush: #e8eee8;

  /* 月白 / 米色 */
  --moon: #f6f4ec;
  --moon-soft: #e8ebdf;
  --jade-soft: #9fb8a3;

  /* 古铜金 */
  --gold: #b8915e;
  --gold-deep: #8a6a3f;
  --gold-soft: #d7b88c;

  /* 雾蓝点缀（取代薰衣草） */
  --lavender: #9fb4c2;

  /* 阴影换冷色调 */
  --shadow-sm: 0 1px 3px rgba(26, 45, 62, 0.12);
  --shadow-md: 0 6px 20px rgba(26, 45, 62, 0.18);
  --shadow-lg: 0 18px 50px rgba(26, 45, 62, 0.24);
  --shadow-glow: 0 0 0 4px rgba(47, 74, 92, 0.14);

  /* 表面色：冷调米白 / 青瓷 */
  --surface-header: rgba(241, 244, 233, 0.82);
  --surface-date:   rgba(232, 238, 224, 0.55);
  --surface-strip-top: rgba(224, 233, 220, 0.4);
  --surface-strip-bot: rgba(241, 244, 233, 0.95);
  --surface-dock:   rgba(241, 244, 233, 0.95);
  --surface-input:  #edf1e4;   /* 冷青米，避免看起来偏暖 */
  --surface-msg-end: #e5ecde;
  --surface-btn-end: #dde5d3;
  --surface-card-end:    rgba(232, 238, 224, 0.85);
  --surface-sidebar-end: rgba(220, 230, 220, 0.7);
  --surface-chat-end:    rgba(220, 230, 222, 0.8);
  --surface-pre-bg:      rgba(232, 238, 224, 0.7);
  --surface-modal-end:   rgba(228, 236, 220, 0.9);
  --modal-backdrop:      rgba(20, 32, 40, 0.45);
}

/* 男性主题：背景改成青瓷白 + 淡松石 + 雾绿 */
[data-theme="male"] body {
  background:
    radial-gradient(1300px 900px at 5% 0%, #e4efe6 0%, transparent 55%),
    radial-gradient(1000px 800px at 100% 10%, #d0e0e3 0%, transparent 50%),
    radial-gradient(900px 900px at 50% 100%, #eeeadc 0%, transparent 55%),
    linear-gradient(180deg, #f1f4e9 0%, #d8e3e1 100%) !important;
  background-attachment: fixed;
}
[data-theme="male"] body::before {
  background-image:
    radial-gradient(circle at 20% 30%, rgba(26, 45, 62, 0.03) 0, transparent 1.5px),
    radial-gradient(circle at 70% 70%, rgba(184, 145, 94, 0.025) 0, transparent 2px);
}
[data-theme="male"] body::after {
  background: radial-gradient(closest-side, rgba(47, 74, 92, 0.14) 0%, transparent 75%);
}

/* 漂落元素：女性用花❀，男性用竹叶 */
.sakura span { position: absolute; top: -30px; font-size: 0; /* 隐藏原字符 */ }
.sakura span::before {
  content: "❀";
  font-size: 14px;
  opacity: .55;
}
[data-theme="male"] .sakura span::before {
  content: "❦";  /* 墨点叶 */
  color: var(--jade-soft);
}

/* 男性主题：头部小装饰由花换成简竹符 */
[data-theme="male"] .brand .title::after {
  content: "⚊";  /* 阳爻，雄劲 */
  color: var(--gold);
  -webkit-text-fill-color: var(--gold);
  font-size: 13px;
  animation: none;
  top: 8px;
}

/* 男性：按钮不那么"娇羞"——阴影更克制、hover 不用浮上来太多 */
[data-theme="male"] button:hover:not(:disabled) {
  transform: translateY(-1px);
}
[data-theme="male"] .div-chip:hover:not(:disabled) {
  transform: translateY(-2px);
}
[data-theme="male"] .welcome .chip:hover {
  transform: translateY(-2px) scale(1.02);
}

/* 男性：消息气泡切角朝"方"一点 */
[data-theme="male"] .msg { border-radius: 14px; }
[data-theme="male"] .msg.user { border-bottom-right-radius: 4px; }
[data-theme="male"] .msg.assistant { border-bottom-left-radius: 4px; }
[data-theme="male"] .msg.assistant::before {
  border-radius: 8px;  /* 方印，替代圆粉桃印 */
  transform: rotate(-3deg);
}

/* 男性：输入坞更硬朗 */
[data-theme="male"] .input-dock textarea,
[data-theme="male"] .input-dock .send-btn,
[data-theme="male"] .date-picker {
  border-radius: 10px;
}
[data-theme="male"] .date-picker { border-radius: 999px; } /* 保留胶囊 */

/* 男性：去掉欢迎大字的流光（更稳重） */
[data-theme="male"] .welcome .big { animation: none; }