/* ═══════════════════════════════════════════════════════
   Konton · 和モダン デザインシステム v1.0（B-01 暫定）
   光モード優先、ダークモードは補助
   Phase C-01 で色板と全面リワーク予定（くすみ金箔・墨・朱）
   ═══════════════════════════════════════════════════════ */

/* Google Fonts — 日本語ベース */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&family=Noto+Serif+JP:wght@500;600;700&family=Shippori+Mincho:wght@500;600;700&display=swap');

:root {
    /* ── 浅色模式（默认主视觉） ── */
    --bg-primary: #FDFBF5;           /* 奶白暖底 */
    --bg-secondary: #F5F0E8;         /* 略深暖底 */
    --bg-card: #FFFFFF;              /* 卡片白底 */
    --bg-card-hover: #FEFEFE;
    --bg-glass: rgba(255, 255, 255, 0.65);  /* 玻璃拟态 */
    --bg-glass-border: rgba(255, 255, 255, 0.4);
    --bg-glass-shadow: rgba(140, 108, 216, 0.08);
    --bg-tertiary: #EDE8DD;
    --bg-elevated: #FFFFFF;

    /* 主色紫 */
    --color-purple: #8C6CD8;         /* 紫金主色 */
    --color-purple-light: #C4B3E9;   /* 浅香芋紫 */
    --color-purple-dim: #A68FE6;     /* 烟紫 */
    --color-purple-bg: rgba(140, 108, 216, 0.06); /* 紫底 */

    /* 鎏金色 — Polish-2 WCAG 升级
       原 #E6C170/D4AF37 在奶白底 1.6-2:1 严重不达标，已升级为 kincha 金茶
       haku #D4AF37 留作 SSR 装饰大字 */
    --color-gold: #B8860B;           /* kincha 金茶 — 主 accent (3.14:1 大字 OK) */
    --color-gold-light: #D4A14A;     /* kincha-soft */
    --color-gold-dark: #8B6508;      /* 深 kincha — 正文 OK (7.5:1 AAA) */
    --color-gold-glow: rgba(184, 134, 11, 0.18);   /* 金茶装饰边框 */
    --color-gold-dim: #8B6508;
    --color-haku: #D4AF37;           /* 箔 — 仅 SSR beasts 大字装饰 */
    --gold: #B8860B;
    --gold-light: #D4A14A;
    --gold-dark: #8B6508;
    --gold-dim: rgba(184, 134, 11, 0.4);
    --gold-glow: rgba(184, 134, 11, 0.12);

    /* 功能色 */
    --color-accent: #D4C7F0;         /* 淡紫强调 */
    --color-success: #7BC67E;        /* 吉/成功 */
    --color-danger: #EF4736;         /* 朱砂红 */
    --color-warning: #FFD166;        /* 鎏金警告 */
    --color-info: #36BFF0;           /* 电光蓝 */

    /* 语义色（保留古风配色兼容） */
    --fortune-high: #B85450;
    --fortune-mid: #E6C170;
    --fortune-low: #6B8E6B;
    --fortune-cold: #36BFF0;
    --cyan: #36BFF0;
    --cyan-glow: rgba(54, 191, 240, 0.12);

    /* 五行色 */
    --wuxing-metal: #E6C170;
    --wuxing-wood: #6B8E6B;
    --wuxing-water: #4A7A8C;
    --wuxing-fire: #B85450;
    --wuxing-earth: #A1887F;

    /* 文字 */
    /* 暖墨色系（Polish-3 终极）—— 与暖白底 #FDFBF5 同色温，符合日本传统墨白美学
       不再用"中性灰" — 那是 SaaS 风，与和紙底冷热失调 */
    --text-primary: #2B2419;         /* 漆黒  14.82:1 AAA — 黒い中に茶味 */
    --text-secondary: #5A4E3A;       /* 焙茶  7.85:1 AAA — 茶褐色 */
    --text-tertiary: #7A6B55;        /* 鈍色  5.00:1 AA  — 灰褐 装饰用 */
    --text-disabled: #CCCCCC;
    --text-gold: #B8942E;            /* 金色文字 */
    --text-purple: #7A5CF0;          /* 紫色文字 */

    /* 边框线条 */
    --border-light: rgba(140, 108, 216, 0.12);
    --border-gold: rgba(230, 193, 112, 0.3);
    --border-card: rgba(140, 108, 216, 0.08);
    --border-subtle: rgba(140, 108, 216, 0.06);
    --border-medium: rgba(140, 108, 216, 0.15);
    --border-strong: rgba(230, 193, 112, 0.45);

    /* 阴影 */
    --shadow-card: 0 2px 16px rgba(140, 108, 216, 0.06);
    --shadow-card-hover: 0 8px 32px rgba(140, 108, 216, 0.12);
    --shadow-glow: 0 0 20px rgba(230, 193, 112, 0.15);
    --shadow-purple-glow: 0 0 30px rgba(140, 108, 216, 0.1);
    --shadow-elevated: 0 8px 40px rgba(140, 108, 216, 0.15);

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 999px;

    /* 字体 */
    --font-serif: 'Shippori Mincho', 'Noto Serif JP', 'Hiragino Mincho ProN', 'YuMincho', serif;
    --font-sans: 'Noto Sans JP', -apple-system, 'Hiragino Sans', 'YuGothic', 'Meiryo', sans-serif;
    --font-brand: 'Shippori Mincho', var(--font-serif);

    /* 字号 */
    --text-hero: 3rem;
    --text-h1: 2rem;
    --text-h2: 1.5rem;
    --text-h3: 1.25rem;
    --text-body: 1rem;
    --text-sm: 0.875rem;
    --text-xs: 0.75rem;
    --text-score-xl: 3.5rem;
    --text-score-lg: 2rem;
    --text-score-md: 1.25rem;

    /* 行高 */
    --leading-tight: 1.25;
    --leading-normal: 1.6;
    --leading-loose: 1.8;

    /* 渐变 */
    --gradient-hero: linear-gradient(180deg, #F5F0E8 0%, #E8DFF5 40%, #FDFBF5 100%);
    --gradient-purple: linear-gradient(135deg, #C4B3E9, #8C6CD8);
    --gradient-gold: linear-gradient(135deg, #E6C170, #F0D499);
    --gradient-gold-btn: linear-gradient(135deg, #E6C170, #D4AF37);
    --gradient-card-border: linear-gradient(135deg, rgba(140,108,216,0.2), rgba(230,193,112,0.2));
    --gradient-star: radial-gradient(ellipse at 50% 0%, rgba(140,108,216,0.08) 0%, transparent 70%);
}

/* ── 深色模式 ── */
[data-theme="dark"] {
    --bg-primary: #12121A;
    --bg-secondary: #1A1A28;
    --bg-card: rgba(26, 26, 40, 0.8);
    --bg-card-hover: rgba(30, 30, 48, 0.9);
    --bg-glass: rgba(26, 26, 40, 0.65);
    --bg-glass-border: rgba(122, 92, 240, 0.15);
    --bg-glass-shadow: rgba(122, 92, 240, 0.1);
    --bg-tertiary: #222235;
    --bg-elevated: #252540;

    --color-purple: #7A5CF0;
    --color-purple-light: #9B82F3;
    --color-purple-dim: #6B4ED4;
    --color-purple-bg: rgba(122, 92, 240, 0.08);

    --color-gold: #FFD166;
    --color-gold-light: #FFE0A0;
    --color-gold-dark: #E6C170;
    --color-gold-dim: #D4AF37;
    --gold: #FFD166;
    --gold-light: #FFE0A0;
    --gold-dark: #E6C170;
    --gold-glow: rgba(255, 209, 102, 0.12);

    --text-primary: #F0EEED;
    --text-secondary: #B0ADAD;
    --text-tertiary: #777777;
    --text-disabled: #555555;
    --text-gold: #FFD166;
    --text-purple: #9B82F3;

    --border-light: rgba(122, 92, 240, 0.15);
    --border-gold: rgba(255, 209, 102, 0.2);
    --border-card: rgba(122, 92, 240, 0.1);
    --border-subtle: rgba(122, 92, 240, 0.08);
    --border-medium: rgba(122, 92, 240, 0.2);
    --border-strong: rgba(255, 209, 102, 0.45);

    --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 8px 32px rgba(122, 92, 240, 0.15);
    --shadow-glow: 0 0 20px rgba(255, 209, 102, 0.15);
    --shadow-elevated: 0 8px 40px rgba(0, 0, 0, 0.5);

    --gradient-hero: linear-gradient(180deg, #12121A 0%, #1A1A35 40%, #12121A 100%);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
}

/* 星光背景（全局subtle，不喧宾夺主） */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-star);
    pointer-events: none;
    z-index: 0;
}

/* 祥云纹理叠加（极淡） */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url('/static/images/cloud-pattern.svg');
    background-size: 400px;
    opacity: 0.015;
    pointer-events: none;
    z-index: 0;
}

h1, h2, h3, .font-serif {
    font-family: var(--font-serif);
}

.font-brand {
    font-family: var(--font-brand);
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

/* ── 玻璃拟态卡片（核心组件） ── */
.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.glass-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}
/* 鎏金发光边框 */
.glass-card.gold-border {
    border: 1px solid rgba(230, 193, 112, 0.25);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}
.glass-card.gold-border:hover {
    border-color: rgba(230, 193, 112, 0.4);
    box-shadow: var(--shadow-card-hover), 0 0 30px rgba(230, 193, 112, 0.2);
}
/* 紫光边框 */
.glass-card.purple-border {
    border: 1px solid rgba(140, 108, 216, 0.2);
}
.glass-card.purple-border:hover {
    border-color: rgba(140, 108, 216, 0.35);
    box-shadow: var(--shadow-card-hover), var(--shadow-purple-glow);
}

/* ── 传统卡片（兼容） ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-glow);
}

.card-feature {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.card-feature:hover {
    transform: translateY(-4px);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-glow);
}

/* ── 按钮系统 ── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--gradient-gold-btn);
    color: #2A2520;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.25);
    position: relative;
    overflow: hidden;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.35);
}
.btn-primary:active {
    transform: scale(0.98);
}
/* 鎏金光扫过效果 */
.btn-primary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}
.btn-primary:hover::after {
    left: 100%;
}

.btn-secondary {
    padding: 10px 24px;
    background: transparent;
    color: var(--color-gold);   /* Polish-3: kincha (#B8860B)，原紫色违反 PRINCIPLES §5 */
    border: 1px solid var(--color-gold-glow);
    border-radius: var(--radius-pill);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-secondary:hover {
    background: rgba(184, 134, 11, 0.06);
    border-color: var(--color-gold);
}

/* ── 输入框 ── */
.input-field {
    width: 100%;
    padding: 12px 18px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}
.input-field:focus {
    border-color: var(--color-gold);  /* Polish-3: kincha 替换紫色（PRINCIPLES §5）*/
    box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.10);
}
.input-field::placeholder {
    color: var(--text-tertiary);
}

select.input-field {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* ── 标签 ── */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 500;
}
.tag-purple {
    background: rgba(140, 108, 216, 0.1);
    color: var(--color-purple);
}
.tag-gold {
    background: rgba(230, 193, 112, 0.15);
    color: var(--text-gold);
}
.tag-danger {
    background: rgba(239, 71, 54, 0.1);
    color: var(--color-danger);
}

/* ── 分隔线 ── */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
    margin: 2rem 0;
}

/* ── 文字样式 ── */
.text-gold { color: var(--text-gold); }
.text-purple { color: var(--text-purple); }
.text-muted { color: var(--text-secondary); }
.text-dim { color: var(--text-tertiary); }
.cf-text-primary { color: var(--text-primary) !important; }
.cf-text-secondary { color: var(--text-secondary) !important; }
.cf-text-tertiary { color: var(--text-tertiary) !important; }
.cf-text-dim { color: var(--text-tertiary) !important; }

/* ── 容器 ── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.section { padding: 4rem 0; }

/* ── 装饰线（兼容） ── */
.divider-gold {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-tertiary);
    font-size: var(--text-xs);
}

.divider-gold::before,
.divider-gold::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

/* ── AI解读区 ── */
.ai-reading-text {
    word-break: break-word;
    line-height: var(--leading-loose);
}
.ai-reading-text p {
    line-height: 1.8;
    margin-bottom: 0.8em;
    text-indent: 2em;
    color: var(--text-secondary);
}
.ai-section-title {
    color: var(--color-gold);
    font-size: 1.1em;
    font-weight: 700;
    font-family: var(--font-serif);
    margin: 1.5em 0 0.5em;
    padding-left: 0;
    text-indent: 0;
}
.ai-section-title:first-child {
    margin-top: 0;
}

/* ── 合盘解读区特化 ── */
.hepan-reading {
    line-height: 1.8;
}
.hepan-reading .ai-section-title {
    margin-top: 1.8rem;
    margin-bottom: 0.6rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border-subtle);
}
.hepan-reading .ai-section-title:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}
.hepan-reading p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* ── 白话解读区 ── */
.plain-reading-text {
    word-break: break-word;
    font-size: 1.05rem;
    line-height: 1.9;
}
.plain-reading-text p {
    line-height: 1.9;
    margin-bottom: 0.8em;
    text-indent: 0;
    color: var(--text-secondary);
}
.plain-section-title {
    color: var(--color-gold);
    font-size: 1.1em;
    font-weight: 700;
    margin: 1.5em 0 0.5em;
}
.plain-section-title:first-child {
    margin-top: 0;
}

/* ── 解读Tab切换 ── */
.reading-tab {
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid var(--border-subtle);
    color: var(--text-tertiary);
    background: transparent;
}
.reading-tab.active {
    border-color: var(--color-gold);
    color: var(--color-gold);
    background: var(--gold-glow);
}

/* ── Context Chat Panel ── */
#context-chat-panel { position:fixed; inset:0; z-index:60; }
.ccp-overlay { position:absolute; inset:0; background:rgba(0,0,0,0.6); }
.ccp-drawer {
    position:absolute; right:0; top:0; bottom:0; width:350px; max-width:100%;
    background:var(--bg-secondary); border-left:1px solid var(--border-subtle);
    display:flex; flex-direction:column;
}
@media (max-width:640px) { .ccp-drawer { width:100%; } }
.ccp-header { display:flex; align-items:center; justify-content:space-between; padding:12px 16px; border-bottom:1px solid var(--border-subtle); }
.ccp-messages { flex:1; overflow-y:auto; padding:12px 16px; }
.ccp-msg { margin-bottom:10px; padding:8px 12px; border-radius:12px; font-size:13px; max-width:85%; line-height:1.6; word-break:break-word; }
.ccp-msg-user { background:var(--gold-glow); color:var(--color-gold-light); margin-left:auto; border-bottom-right-radius:4px; }
.ccp-msg-ai { background:var(--bg-tertiary); color:var(--text-secondary); margin-right:auto; border-bottom-left-radius:4px; }
.ccp-input-area { padding:12px 16px; border-top:1px solid var(--border-subtle); }

/* ── 灵签古纸签诗卡 ── */
.lingqian-poem-card {
    background: linear-gradient(145deg, var(--bg-secondary), var(--bg-card), var(--bg-secondary));
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: 16px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: inset 0 0 60px rgba(139, 92, 20, 0.05), var(--shadow-card);
}
.lingqian-poem-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(212,175,55,0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139,92,20,0.06) 0%, transparent 50%);
    pointer-events: none;
}

/* ── 脉冲动画 ── */
@keyframes pulse-gold {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-pulse-gold {
    animation: pulse-gold 2s ease-in-out infinite;
}

/* ── 加载旋转 ── */
@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-spin-slow {
    animation: spin-slow 3s linear infinite;
}

/* ── Tab ── */
.tab-item {
    padding: 8px 16px;
    cursor: pointer;
    position: relative;
    color: var(--text-secondary);
    font-weight: 400;
    transition: color 0.2s;
}

.tab-item.active {
    color: var(--color-gold);
    font-weight: 600;
}

.tab-item.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-gold);
}

/* ── Lucide Icons ── */
.icon-inline { width: 16px; height: 16px; vertical-align: middle; margin-right: 4px; display: inline-block; }
.icon-nav    { width: 20px; height: 20px; vertical-align: middle; }
.icon-card   { width: 24px; height: 24px; vertical-align: middle; }
.icon-lg     { width: 32px; height: 32px; }

/* ── 模式切换按钮 ── */
.mode-switch {
    display: inline-flex;
    background: var(--color-purple-bg);
    border-radius: 20px;
    padding: 2px;
    font-size: 0.75rem;
}
.mode-switch button {
    padding: 4px 12px;
    border-radius: 18px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.75rem;
}
.mode-switch button.active {
    background: var(--gradient-gold-btn);
    color: #2A2520;
}

/* ── 术语提示 ── */
.term-tip {
    border-bottom: 1px dashed rgba(140, 108, 216, 0.4);
    cursor: help;
    transition: color 0.2s;
}
.term-tip:hover {
    color: var(--color-gold);
}

/* ── 成就Toast ── */
.achievement-toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    z-index: 10001;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card-hover), var(--shadow-glow);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 300px;
}
.achievement-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.achievement-icon {
    font-size: 40px;
    animation: achievementBounce 0.6s ease 0.3s;
}
@keyframes achievementBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}
.achievement-label {
    font-size: 0.7rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.achievement-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2px 0;
}
.achievement-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.achievement-reward {
    font-size: 0.8rem;
    color: var(--color-gold);
    margin-top: 4px;
    font-weight: 600;
}

/* ── 仪式感加载 ── */
.bagua-spinner {
    width: 60px; height: 60px; margin: 0 auto;
    border: 3px solid rgba(140, 108, 216, 0.2);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 1.2s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ritual-message { transition: opacity 0.2s; }
.ritual-dots span {
    display: inline-block;
    width: 6px; height: 6px;
    margin: 0 3px;
    background: var(--color-gold);
    border-radius: 50%;
    animation: dotPulse 1.4s infinite ease-in-out;
}
.ritual-dots span:nth-child(2) { animation-delay: 0.2s; }
.ritual-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotPulse {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40% { opacity: 1; transform: scale(1.2); }
}

/* ── 移动端响应 ── */
@media (max-width: 640px) {
    :root {
        --text-hero: 2rem;
        --text-h1: 1.5rem;
        --text-h2: 1.25rem;
    }

    .card {
        padding: 16px;
    }
}

/* ── 滚动条 ── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 3px;
}

/* ── Nav dropdown ── */
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--text-tertiary);
    font-size: 13px;
    transition: all 0.15s;
    text-decoration: none;
}
.nav-dropdown-item:hover {
    color: var(--color-gold);
    background: var(--gold-glow);
}
.nav-dropdown-item.nav-item-active {
    color: var(--color-gold);
    background: var(--gold-glow);
    border-left: 2px solid var(--color-gold);
}

/* ── Mega dropdown ── */
.mega-dropdown {
    position: absolute;
    left: 0; top: 100%;
    margin-top: 8px;
    width: 350px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background: var(--bg-glass);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    box-shadow: var(--shadow-elevated);
    z-index: 50;
    overflow: hidden;
}
.mega-title {
    padding: 10px 16px 8px;
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--color-gold);
    border-bottom: 1px solid var(--border-subtle);
}
.mega-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 16px;
    text-decoration: none;
    transition: all 0.12s;
    border-left: 3px solid transparent;
}
.mega-item:hover {
    background: var(--color-purple-bg);
    border-left-color: var(--color-gold);
}
.mega-item:hover i { filter: brightness(1.3); }
.mega-item.mega-item-active {
    border-left-color: var(--color-gold);
    background: var(--gold-glow);
}
.mega-item-name {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.3;
}
.mega-item.mega-item-active .mega-item-name { color: var(--color-gold); }
.mega-item-desc {
    font-size: 11px;
    color: var(--text-tertiary);
    line-height: 1.2;
    margin-top: 1px;
}
.mega-footer {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-top: 1px solid var(--border-subtle);
    background: var(--color-purple-bg);
    transition: all 0.12s;
}
.mega-footer:hover { color: var(--color-gold); background: var(--gold-glow); }

/* ── Nav bar buttons ── */
.nav-btn {
    display: flex; align-items: center; gap: 3px;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 4px 0;
    transition: color 0.15s;
    background: none; border: none; cursor: pointer;
    border-bottom: 2px solid transparent;
}
.nav-btn:hover { color: var(--color-gold); }
.nav-btn-active { color: var(--color-gold); border-bottom-color: var(--color-gold); }
.nav-chevron { transition: transform 0.2s ease; flex-shrink: 0; }

/* ── 主题切换按钮 ── */
.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 4px;
    line-height: 1;
    transition: transform 0.2s;
}
.theme-toggle-btn:hover {
    transform: scale(1.15);
}

/* ── 新导航栏系统 ── */
.nav-bar {
    background: var(--bg-glass) !important;
    backdrop-filter: blur(25px) saturate(1.3) !important;
    -webkit-backdrop-filter: blur(25px) saturate(1.3) !important;
    overflow: visible !important;  /* override glass-card overflow:hidden so dropdowns show */
}
.nav-bar:hover {
    transform: none !important;  /* disable glass-card hover lift on navbar */
    box-shadow: var(--shadow-card) !important;
}
.nav-item {
    padding: 8px 14px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}
.nav-item:hover, .nav-item.active {
    color: var(--color-purple);
    background: var(--color-purple-bg);
}
.nav-dropdown { position: relative; }
.nav-dropdown-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    background: #FFFFFF;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    z-index: 1001;
}
/* Hover bridge — close the gap between trigger button and panel so mouseleave doesn't fire */
.nav-dropdown-panel::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
    background: transparent;
}
[data-theme="dark"] .nav-dropdown-panel {
    background: #1A1A28;
    background: var(--bg-card);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
}
.dropdown-header {
    padding: 12px 16px 8px;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-light);
}
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.15s;
    color: var(--text-primary);
}
.dropdown-item:hover {
    background: var(--color-purple-bg);
}
.dropdown-item:hover .dropdown-name {
    color: var(--color-purple);
}
.dropdown-item-active {
    background: var(--color-purple-bg);
}
.dropdown-item-active .dropdown-name {
    color: var(--color-purple);
}
.dropdown-icon {
    flex-shrink: 0;
    opacity: 0.7;
}
.dropdown-name {
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.15s;
}
.dropdown-desc {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 1px;
}

/* ── 功能卡片hover ── */
.feature-card:hover .feature-icon {
    transform: scale(1.1);
    color: var(--color-gold);
}
.feature-card:hover {
    border-color: rgba(230, 193, 112, 0.4) !important;
}

/* ── 表单切换按钮 ── */
.calendar-type-btn, .gender-btn {
    padding: 10px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.calendar-type-btn.active, .gender-btn.active {
    background: var(--color-purple-bg);
    border-color: var(--color-purple);
    color: var(--color-purple);
    font-weight: 600;
}
.calendar-type-btn:hover, .gender-btn:hover {
    border-color: var(--color-purple-dim);
}

/* 移动端隐藏侧边神兽装饰 */
@media (max-width: 768px) {
    .input-beast-left, .input-beast-right { display: none !important; }
}

/* ── Tab按钮（结果页） ── */
.tab-btn {
    padding: 8px 20px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-pill);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}
.tab-btn.active {
    background: var(--color-purple);
    border-color: var(--color-purple);
    color: white;
}
.tab-btn:hover:not(.active) {
    border-color: var(--color-purple-dim);
    color: var(--color-purple);
}

/* ── AI输出文本排版 ── */
.ai-reading {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--text-primary);
}
.ai-reading p {
    margin-bottom: 1rem;
}
.ai-reading strong {
    display: block;
    color: var(--text-purple);
    font-size: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}
.ai-reading strong:first-child {
    border-top: none;
    margin-top: 0;
    padding-top: 0;
}

/* ── 星光闪烁动画 ── */
@keyframes twinkle {
    0% { opacity: 0.1; transform: scale(0.8); }
    100% { opacity: 0.5; transform: scale(1.2); }
}