/* ===== 全局变量 ===== */
:root {
  --primary: #c9a227;
  --primary-light: #f5af19;
  --primary-dark: #8b6f1e;
  --bg-dark: #0f0f23;
  --bg-card: #1a1a2e;
  --bg-card-hover: #232342;
  --bg-input: #16162a;
  --text-main: #e8e8f0;
  --text-sub: #a0a0b8;
  --text-muted: #6a6a80;
  --accent-gold: #d4a843;
  --accent-red: #c0392b;
  --accent-green: #27ae60;
  --accent-blue: #2980b9;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 10px;
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== 头部 ===== */
.header {
  position: fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(15,15,35,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display:flex; align-items:center; justify-content:space-between; padding: 12px 20px; max-width:900px; margin:0 auto; }
.logo { display:flex; align-items:center; gap:8px; }
.logo-icon { font-size: 1.6rem; color: var(--primary); }
.logo-text { font-size: 1.1rem; font-weight:700; color: var(--text-main); letter-spacing:1px; }
.menu-btn { background:none; border:none; color:var(--text-main); font-size:1.5rem; cursor:pointer; padding:4px 8px; }

/* ===== 侧边菜单 ===== */
.side-menu { position:fixed; inset:0; z-index:200; pointer-events:none; }
.menu-overlay { position:absolute; inset:0; background:rgba(0,0,0,0.5); opacity:0; transition:opacity .3s; }
.menu-panel {
  position:absolute; top:0; left:0; bottom:0; width:280px; max-width:80vw;
  background: var(--bg-card); border-right:1px solid var(--border);
  transform: translateX(-100%); transition: transform .3s ease;
  display:flex; flex-direction:column;
}
.side-menu.open { pointer-events:auto; }
.side-menu.open .menu-overlay { opacity:1; }
.side-menu.open .menu-panel { transform:translateX(0); }
.menu-header { padding:24px 20px 16px; display:flex; align-items:center; gap:10px; font-size:1.1rem; font-weight:700; color:var(--primary); border-bottom:1px solid var(--border); }
.menu-logo { font-size:1.5rem; }
.menu-list { flex:1; padding:8px 0; list-style:none; overflow-y:auto; }
.menu-item { padding:14px 20px; display:flex; align-items:center; gap:12px; cursor:pointer; transition:background .2s; font-size:0.95rem; color:var(--text-sub); }
.menu-item:hover, .menu-item.active { background:rgba(201,162,39,0.1); color:var(--text-main); }
.menu-item.active { border-left:3px solid var(--primary); }
.menu-item span { font-size:1.2rem; }
.menu-footer { padding:16px 20px; border-top:1px solid var(--border); font-size:0.75rem; color:var(--text-muted); text-align:center; }

/* ===== 主内容 ===== */
.main-content { padding-top:60px; max-width:900px; margin:0 auto; padding-bottom:40px; }

/* ===== Hero ===== */
.hero-section { position:relative; padding:40px 20px 30px; text-align:center; overflow:hidden; }
.hero-bg {
  position:absolute; inset:0;
  background: url('hero-bg.png') center/cover no-repeat,
    radial-gradient(ellipse at 50% 30%, rgba(201,162,39,0.15) 0%, transparent 70%);
  opacity:0.6;
  pointer-events:none;
}
.hero-title { position:relative; font-size:2rem; font-weight:900; line-height:1.3; background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, #fff 100%); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:12px; }
.hero-sub { position:relative; font-size:0.85rem; color:var(--text-sub); letter-spacing:2px; }

/* ===== 卡片 ===== */
.section-card {
  margin:16px 16px 0; background:var(--bg-card); border-radius:var(--radius);
  border:1px solid var(--border); padding:24px 20px; box-shadow:var(--shadow);
}
.section-title { display:flex; align-items:center; gap:8px; font-size:1.15rem; font-weight:700; margin-bottom:8px; color:var(--text-main); }
.title-icon { font-size:1.3rem; }
.section-desc { font-size:0.85rem; color:var(--text-sub); line-height:1.6; margin-bottom:20px; }

/* ===== 房屋选择器 ===== */
.house-selector { margin-bottom:20px; }
.house-grid { display:flex; flex-direction:column; gap:6px; max-width:340px; margin:0 auto; }
.house-row { display:flex; gap:6px; justify-content:center; }
.house-row-mid { margin:6px 0; }
.direction-cell {
  flex:1; min-width:0; background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:10px 4px; display:flex; flex-direction:column; align-items:center; gap:2px;
  transition: all .25s; cursor:default; position:relative;
}
.direction-cell:hover { border-color:rgba(201,162,39,0.4); background:rgba(201,162,39,0.05); }
.direction-cell.has-selection { border-color:var(--primary); background:rgba(201,162,39,0.08); }
.direction-cell.center-cell { background:rgba(201,162,39,0.06); border-color:rgba(201,162,39,0.25); }
.cell-label { font-size:0.7rem; color:var(--text-muted); }
.cell-bagua { font-size:1.4rem; color:var(--primary); font-weight:700; line-height:1.2; }
.cell-select {
  width:100%; margin-top:4px; background:rgba(255,255,255,0.05); border:1px solid var(--border);
  border-radius:6px; color:var(--text-main); font-size:0.72rem; padding:3px 2px; cursor:pointer;
  text-align:center; outline:none; -webkit-appearance:none; appearance:none;
}
.cell-select:focus { border-color:var(--primary); }
.cell-select option { background:var(--bg-card); color:var(--text-main); }

/* ===== 按钮 ===== */
.action-bar { display:flex; gap:12px; margin-top:8px; flex-wrap:wrap; }
.btn { flex:1; min-width:140px; padding:14px 20px; border:none; border-radius:var(--radius-sm); font-size:0.95rem; font-weight:600; cursor:pointer; display:flex; align-items:center; justify-content:center; gap:8px; transition:all .25s; font-family:inherit; }
.btn-primary { background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color:#1a1a0a; box-shadow:0 4px 16px rgba(201,162,39,0.3); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(201,162,39,0.4); }
.btn-primary:active { transform:translateY(0); }
.btn-secondary { background:rgba(255,255,255,0.06); color:var(--text-sub); border:1px solid var(--border); }
.btn-secondary:hover { background:rgba(255,255,255,0.1); color:var(--text-main); }
.btn-icon { font-size:1.1rem; }

/* ===== 结果卡片 ===== */
.result-card { animation: fadeInUp .5s ease; }
@keyframes fadeInUp { from{opacity:0; transform:translateY(20px);} to{opacity:1; transform:translateY(0);} }

.overall-score { display:flex; flex-direction:column; align-items:center; padding:20px 0; }
.score-circle { position:relative; width:140px; height:140px; }
.score-ring { transform:rotate(-90deg); }
.score-text { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.score-number { font-size:2.2rem; font-weight:900; color:var(--primary-light); line-height:1; }
.score-label { font-size:0.8rem; color:var(--text-sub); margin-top:4px; font-weight:600; }
.score-desc { margin-top:16px; font-size:0.9rem; color:var(--text-sub); text-align:center; line-height:1.6; max-width:400px; }

/* ===== 方位结果 ===== */
.direction-results { display:flex; flex-direction:column; gap:12px; margin-top:20px; }
.dir-result-card {
  background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:16px; cursor:pointer; transition:all .25s; position:relative; overflow:hidden;
}
.dir-result-card:hover { border-color:rgba(201,162,39,0.3); background:var(--bg-card-hover); }
.dir-result-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.dir-result-title { display:flex; align-items:center; gap:8px; }
.dir-name { font-size:0.95rem; font-weight:700; }
.dir-bagua { font-size:0.8rem; color:var(--primary); background:rgba(201,162,39,0.1); padding:2px 8px; border-radius:4px; }
.dir-score-badge { font-size:0.75rem; padding:3px 10px; border-radius:20px; font-weight:600; }
.badge-大吉 { background:rgba(39,174,96,0.2); color:#2ecc71; }
.badge-吉 { background:rgba(46,204,113,0.15); color:#27ae60; }
.badge-中吉 { background:rgba(52,152,219,0.2); color:#3498db; }
.badge-中平 { background:rgba(241,196,15,0.2); color:#f1c40f; }
.badge-中下 { background:rgba(230,126,34,0.2); color:#e67e22; }
.badge-凶 { background:rgba(231,76,60,0.2); color:#e74c3c; }

.dir-result-body { font-size:0.82rem; color:var(--text-sub); line-height:1.7; }
.dir-result-body strong { color:var(--text-main); }
.dir-tags { display:flex; flex-wrap:wrap; gap:6px; margin-top:8px; }
.dir-tag { font-size:0.7rem; padding:2px 8px; border-radius:4px; background:rgba(255,255,255,0.06); color:var(--text-muted); }
.dir-tag.element { background:rgba(201,162,39,0.1); color:var(--primary); }
.dir-tag.hexagram { background:rgba(52,152,219,0.15); color:#5dade2; }

/* ===== 八卦知识 ===== */
.bagua-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(150px, 1fr)); gap:12px; }
.bagua-card { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:16px 12px; text-align:center; transition:all .25s; cursor:pointer; }
.bagua-card:hover { border-color:rgba(201,162,39,0.3); transform:translateY(-2px); }
.bagua-card .bagua-symbol { font-size:2rem; color:var(--primary); margin-bottom:6px; }
.bagua-card .bagua-name { font-size:1rem; font-weight:700; margin-bottom:4px; }
.bagua-card .bagua-element { font-size:0.75rem; color:var(--text-muted); }
.bagua-card .bagua-direction { font-size:0.7rem; color:var(--text-sub); margin-top:4px; }

.room-func-list { display:flex; flex-direction:column; gap:10px; }
.room-func-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; display:flex; align-items:center; gap:12px; }
.room-func-icon { font-size:1.8rem; width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:rgba(201,162,39,0.08); border-radius:10px; flex-shrink:0; }
.room-func-info { flex:1; }
.room-func-name { font-size:0.95rem; font-weight:600; margin-bottom:2px; }
.room-func-detail { font-size:0.75rem; color:var(--text-muted); }

/* ===== 五行 ===== */
.element-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(140px, 1fr)); gap:12px; }
.element-card { border-radius:var(--radius-sm); padding:16px 12px; text-align:center; border:1px solid var(--border); }
.element-card .el-symbol { font-size:1.8rem; margin-bottom:6px; }
.element-card .el-name { font-size:0.95rem; font-weight:700; margin-bottom:4px; }
.element-card .el-detail { font-size:0.72rem; color:var(--text-muted); line-height:1.5; }
.el-金 { background:linear-gradient(135deg, rgba(192,192,200,0.1), rgba(192,192,200,0.03)); }
.el-木 { background:linear-gradient(135deg, rgba(39,174,96,0.1), rgba(39,174,96,0.03)); }
.el-水 { background:linear-gradient(135deg, rgba(41,128,185,0.1), rgba(41,128,185,0.03)); }
.el-火 { background:linear-gradient(135deg, rgba(231,76,60,0.1), rgba(231,76,60,0.03)); }
.el-土 { background:linear-gradient(135deg, rgba(201,162,39,0.1), rgba(201,162,39,0.03)); }

.sheng-cycle { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; }
.sheng-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:12px; flex:1; min-width:140px; text-align:center; }
.sheng-item .sheng-relation { font-size:0.85rem; font-weight:600; color:var(--primary); margin-bottom:4px; }
.sheng-item .sheng-desc { font-size:0.72rem; color:var(--text-muted); line-height:1.5; }

.ke-list { display:flex; flex-direction:column; gap:10px; }
.ke-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; }
.ke-item-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; }
.ke-relation { font-size:0.9rem; font-weight:700; color:var(--accent-red); }
.ke-solution { font-size:0.72rem; color:var(--accent-green); background:rgba(39,174,96,0.1); padding:2px 8px; border-radius:4px; }
.ke-desc { font-size:0.78rem; color:var(--text-sub); line-height:1.6; }
.ke-items { display:flex; gap:8px; margin-top:8px; flex-wrap:wrap; }
.ke-item-tag { font-size:0.7rem; padding:3px 10px; border-radius:4px; background:rgba(255,255,255,0.06); color:var(--text-muted); }

/* ===== 建议列表 ===== */
.func-suggest-list, .ornament-list, .deco-list { display:flex; flex-direction:column; gap:10px; }
.suggest-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; }
.suggest-title { font-size:0.9rem; font-weight:600; margin-bottom:6px; display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.suggest-title .old-config { color:var(--accent-red); font-size:0.8rem; }
.suggest-title .arrow { color:var(--text-muted); }
.suggest-title .new-config { color:var(--accent-green); font-size:0.8rem; }
.suggest-reason { font-size:0.78rem; color:var(--text-sub); line-height:1.6; }
.suggest-tag { font-size:0.7rem; padding:2px 8px; border-radius:4px; background:rgba(201,162,39,0.1); color:var(--primary); }

.ornament-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; display:flex; gap:12px; align-items:flex-start; }
.ornament-icon { font-size:1.5rem; width:40px; height:40px; display:flex; align-items:center; justify-content:center; background:rgba(201,162,39,0.08); border-radius:8px; flex-shrink:0; }
.ornament-info { flex:1; }
.ornament-name { font-size:0.9rem; font-weight:600; margin-bottom:4px; }
.ornament-items { font-size:0.75rem; color:var(--text-sub); line-height:1.5; }
.ornament-scene { font-size:0.72rem; color:var(--text-muted); margin-top:4px; }

.deco-item { background:var(--bg-input); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; }
.deco-header { display:flex; align-items:center; gap:8px; margin-bottom:8px; }
.deco-direction { font-size:0.9rem; font-weight:700; }
.deco-element { font-size:0.75rem; color:var(--primary); background:rgba(201,162,39,0.1); padding:2px 8px; border-radius:4px; }
.deco-body { font-size:0.78rem; color:var(--text-sub); line-height:1.7; }
.deco-body .label { color:var(--text-muted); }

/* ===== 关于 ===== */
.about-content { font-size:0.85rem; color:var(--text-sub); line-height:1.8; }
.about-content p { margin-bottom:12px; }
.about-content h3 { font-size:0.95rem; color:var(--text-main); margin:16px 0 8px; }
.about-content ul { padding-left:20px; margin-bottom:12px; }
.about-content li { margin-bottom:6px; }
.about-content strong { color:var(--text-main); }
.about-note { margin-top:20px; padding:12px; background:rgba(231,76,60,0.08); border:1px solid rgba(231,76,60,0.2); border-radius:var(--radius-sm); font-size:0.8rem; color:var(--accent-red); }

.about-illustration { margin:16px 0; border-radius:var(--radius-sm); overflow:hidden; border:1px solid var(--border); }
.about-img { width:100%; height:auto; display:block; opacity:0.85; }

/* ===== Tab面板 ===== */
.tab-panel { display:none; animation: fadeIn .3s ease; }
.tab-panel.active { display:block; }
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }

/* ===== 弹窗 ===== */
.modal-overlay { position:fixed; inset:0; z-index:300; background:rgba(0,0,0,0.7); display:none; align-items:center; justify-content:center; padding:20px; backdrop-filter:blur(4px); }
.modal-overlay.open { display:flex; }
.modal-content { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius); max-width:500px; width:100%; max-height:80vh; overflow-y:auto; position:relative; animation:slideUp .3s ease; }
@keyframes slideUp { from{opacity:0; transform:translateY(30px);} to{opacity:1; transform:translateY(0);} }
.modal-close { position:absolute; top:12px; right:12px; background:none; border:none; color:var(--text-sub); font-size:1.3rem; cursor:pointer; z-index:1; width:32px; height:32px; display:flex; align-items:center; justify-content:center; border-radius:50%; }
.modal-close:hover { background:rgba(255,255,255,0.1); }
.modal-body { padding:24px 20px; }

.modal-hex-name { font-size:1.3rem; font-weight:900; color:var(--primary); margin-bottom:4px; }
.modal-hex-seq { font-size:0.8rem; color:var(--text-muted); margin-bottom:16px; }
.modal-section { margin-bottom:16px; }
.modal-section-title { font-size:0.8rem; font-weight:700; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-bottom:6px; }
.modal-section-content { font-size:0.85rem; color:var(--text-sub); line-height:1.7; }
.modal-score-row { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.modal-score-num { font-size:2rem; font-weight:900; }
.modal-score-level { font-size:0.85rem; padding:4px 12px; border-radius:20px; font-weight:600; }

/* ===== Toast ===== */
.toast { position:fixed; bottom:30px; left:50%; transform:translateX(-50%) translateY(100px); background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-sm); padding:12px 24px; font-size:0.85rem; color:var(--text-main); box-shadow:var(--shadow); z-index:400; opacity:0; transition:all .3s; pointer-events:none; }
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }

/* ===== 详情展开内容 ===== */
.detail-expand { display:none; margin-top:12px; padding-top:12px; border-top:1px solid var(--border); }
.detail-expand.open { display:block; }
.detail-row { display:flex; margin-bottom:8px; font-size:0.8rem; line-height:1.6; }
.detail-row .detail-label { color:var(--text-muted); min-width:70px; flex-shrink:0; }
.detail-row .detail-value { color:var(--text-sub); flex:1; }
.huasha-box { background:rgba(39,174,96,0.06); border:1px solid rgba(39,174,96,0.2); border-radius:var(--radius-sm); padding:10px; margin-top:8px; }
.huasha-box .huasha-title { font-size:0.78rem; font-weight:600; color:var(--accent-green); margin-bottom:4px; }
.huasha-box .huasha-desc { font-size:0.75rem; color:var(--text-sub); line-height:1.5; }

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .hero-title { font-size:2.6rem; }
  .house-grid { max-width:420px; }
  .cell-bagua { font-size:1.6rem; }
  .cell-select { font-size:0.8rem; }
  .section-card { margin:20px 24px 0; padding:28px 24px; }
  .bagua-grid { grid-template-columns:repeat(auto-fill, minmax(170px, 1fr)); }
  .element-grid { grid-template-columns:repeat(5, 1fr); }
}

@media (max-width: 380px) {
  .cell-label { font-size:0.6rem; }
  .cell-bagua { font-size:1.1rem; }
  .cell-select { font-size:0.65rem; padding:2px 1px; }
  .hero-title { font-size:1.6rem; }
  .btn { font-size:0.85rem; padding:12px 14px; }
}