/* ============================================================
   青炜降真 · 高级中国风设计系统
   ============================================================ */

/* ---- CSS 自定义属性 ---- */
:root {
    /* 背景层级 */
    --bg-deep:       #080604;
    --bg-primary:    #0e0a07;
    --bg-elevated:   #16110d;
    --bg-surface:    #1c1712;
    --bg-hover:      #221c16;

    /* 边框 */
    --border-subtle: #2a221b;
    --border-medium: #3d3228;
    --border-strong: #5a4a3a;

    /* 文字 */
    --text-primary:   #f0ebe0;
    --text-secondary: #b8a898;
    --text-muted:     #7d7060;
    --text-dim:       #6b5e50;

    /* 强调色 */
    --gold:           #c9a96e;
    --gold-bright:    #d4b87a;
    --gold-dim:       #a88950;
    --gold-bg:        rgba(201, 169, 110, 0.08);
    --gold-border:    rgba(201, 169, 110, 0.25);

    /* 语义色 */
    --red:            #c8604a;
    --red-dim:        #a84c3a;
    --green:          #6da380;
    --green-bg:       rgba(109, 163, 128, 0.1);
    --ji-brown:       #b8865a;
    --ji-bg:          rgba(184, 134, 90, 0.12);

    /* 字体 */
    --font-display:   KaiTi, STKaiti, "楷体", "华文楷体", "Noto Serif SC", serif;
    --font-ui:        "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-mono:      "SF Mono", Monaco, "Cascadia Code", monospace;

    /* 间距 */
    --space-xs:  4px;
    --space-sm:  8px;
    --space-md:  16px;
    --space-lg:  24px;
    --space-xl:  32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* 动效 */
    --ease-out:  cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast:   150ms;
    --duration-normal: 300ms;
    --duration-slow:   500ms;
}


/* ---- 全局重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}
body {
    font-family: var(--font-display);
    background: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.75;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- 背景装饰（静态底层，动态粒子在bg_particles.js）---- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 10%, rgba(201, 169, 110, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(109, 163, 128, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(201, 169, 110, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}


/* ---- 布局容器 ---- */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}


/* ---- 导航 ---- */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) 0;
    margin-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}

.app-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, var(--gold-dim), transparent);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--gold);
    text-decoration: none;
    letter-spacing: 8px;
    transition: color var(--duration-fast) var(--ease-out);
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--duration-normal) var(--ease-smooth);
}

.logo:hover::after { width: 100%; }

.nav-links { display: flex; gap: var(--space-xl); }

.nav-link {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    color: var(--text-muted);
    text-decoration: none;
    letter-spacing: 2px;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--duration-fast) var(--ease-out);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--duration-normal) var(--ease-smooth);
}

.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.nav-link.active {
    color: var(--gold);
    font-weight: 500;
}

.nav-link.active::after {
    width: 100%;
    background: var(--gold);
}


/* ---- 主内容 ---- */
.main-content { flex: 1; }


/* ---- 介绍卡片 ---- */
.card-intro {
    background: linear-gradient(135deg, rgba(22,17,13,0.6) 0%, rgba(28,23,18,0.4) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    margin-bottom: var(--space-lg);
    position: relative;
    animation: fadeSlideIn 0.5s var(--ease-smooth);
}

.card-intro .intro-divider {
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold-dim), transparent);
    margin-bottom: var(--space-lg);
}

.card-intro .intro-header {
    margin-bottom: var(--space-xl);
}

.card-intro .intro-label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.card-intro .intro-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--gold);
    letter-spacing: 4px;
    margin-bottom: var(--space-sm);
    font-weight: normal;
}

.card-intro .intro-tagline {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--text-secondary);
    letter-spacing: 2px;
    line-height: 1.7;
}

.card-intro .intro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.card-intro .intro-grid--2col {
    grid-template-columns: repeat(2, 1fr);
}

.card-intro .intro-col {}
.card-intro .intro-col-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
    font-weight: normal;
}

.card-intro .intro-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card-intro .intro-list li {
    font-family: var(--font-ui);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 16px;
    position: relative;
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.card-intro .intro-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--gold-dim);
    opacity: 0.5;
}

.card-intro .intro-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
}

.card-intro .intro-steps li {
    font-family: var(--font-ui);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 28px;
    position: relative;
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
    counter-increment: step;
}

.card-intro .intro-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--gold-bg);
    border: 1px solid var(--gold-border);
    color: var(--gold);
    font-size: 0.65rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.card-intro .intro-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-subtle);
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    cursor: pointer;
    transition: color var(--duration-fast) var(--ease-out);
    user-select: none;
}

.card-intro .intro-toggle:hover {
    color: var(--gold);
}

.card-intro .intro-toggle-icon {
    display: inline-block;
    transition: transform 0.3s var(--ease-smooth);
    font-size: 0.7rem;
}

.card-intro .intro-toggle.collapsed .intro-toggle-icon {
    transform: rotate(-90deg);
}

.card-intro .intro-body {
    transition: max-height 0.4s var(--ease-smooth), opacity 0.3s var(--ease-smooth);
    overflow: hidden;
}

.card-intro .intro-body.collapsed {
    max-height: 0;
    opacity: 0;
}

/* 介绍卡片响应式 */
@media (max-width: 768px) {
    .card-intro .intro-grid,
    .card-intro .intro-grid--2col {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    .card-intro { padding: var(--space-lg); }
}

/* ---- 卡片 ---- */
.card {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    margin-bottom: var(--space-lg);
    position: relative;
    transition: border-color var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

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

.card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: var(--space-2xl);
    right: var(--space-2xl);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
    opacity: 0;
    transition: opacity var(--duration-slow) var(--ease-out);
}

.card:hover::before { opacity: 1; }

/* 装饰角标（仅表单卡片） */
.card-form {
    overflow: hidden;
}

.card-form::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 100% 0%, rgba(201, 169, 110, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.card-form .card-divider {
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold-dim), transparent);
    margin-bottom: var(--space-lg);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--gold);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
    letter-spacing: 3px;
    font-weight: normal;
    position: relative;
}

.card-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 32px;
    height: 1px;
    background: var(--gold-dim);
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
    line-height: 1.6;
    letter-spacing: 1px;
}


/* ---- 表单 ---- */
.form-section { margin-bottom: var(--space-xl); }

.form-section-title {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: var(--space-md);
    padding-left: var(--space-sm);
    border-left: 2px solid var(--gold-dim);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
}

.form-group { margin-bottom: var(--space-md); }

.form-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
    transition: color var(--duration-fast) var(--ease-out);
}

.form-group:focus-within .form-label {
    color: var(--gold);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-deep);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: all var(--duration-fast) var(--ease-out);
    outline: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--border-medium);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--gold-dim);
    box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.08),
                inset 0 1px 3px rgba(0, 0, 0, 0.2);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b5e50' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
    cursor: pointer;
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
    max-height: 200px;
}

.form-textarea::placeholder {
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.form-input::placeholder {
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 0.85rem;
}

/* ---- 按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 13px 32px;
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 3px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    text-decoration: none;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.04) 50%, transparent 100%);
    pointer-events: none;
}

.btn-primary {
    background: linear-gradient(135deg, #a88950 0%, var(--gold) 50%, #a88950 100%);
    background-size: 200% 100%;
    color: #0a0804;
    box-shadow: 0 2px 12px rgba(201, 169, 110, 0.2);
    font-weight: bold;
}

.btn-primary:hover {
    background-position: 100% 0;
    box-shadow: 0 4px 20px rgba(201, 169, 110, 0.3);
    transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-secondary {
    background: transparent;
    color: var(--gold);
    border: 1px solid var(--gold-border);
}

.btn-secondary:hover {
    background: var(--gold-bg);
    border-color: var(--gold-dim);
    box-shadow: 0 2px 12px rgba(201, 169, 110, 0.1);
}

.btn-large {
    width: 100%;
    padding: 15px 32px;
    font-size: 1.05rem;
    letter-spacing: 5px;
}

.btn-icon {
    padding: 8px 16px;
    font-size: 0.85rem;
    letter-spacing: 1px;
}


/* ---- 表格 ---- */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

.data-table thead th {
    background: var(--bg-deep);
    color: var(--gold);
    padding: 12px 16px;
    text-align: center;
    font-weight: normal;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    letter-spacing: 2px;
    border-bottom: 1px solid var(--border-medium);
    position: sticky;
    top: 0;
}

.data-table thead th:first-child { border-radius: var(--radius-sm) 0 0 0; }
.data-table thead th:last-child  { border-radius: 0 var(--radius-sm) 0 0; }

.data-table tbody td {
    padding: 11px 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
    transition: background var(--duration-fast) var(--ease-out);
}

.data-table tbody tr:hover td {
    background: rgba(201, 169, 110, 0.03);
}

.data-table tbody tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.012);
}

.data-table tbody tr:last-child td:first-child { border-radius: 0 0 0 var(--radius-sm); }
.data-table tbody tr:last-child td:last-child  { border-radius: 0 0 var(--radius-sm) 0; }

.data-table .highlight { color: var(--gold); font-weight: bold; }
.data-table .good      { color: var(--green); }
.data-table .warn      { color: var(--red); }
.data-table .muted     { color: var(--text-muted); }

.data-table .label-cell {
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-align: right;
    padding-right: 20px;
    min-width: 80px;
}

.data-table .label-cell-left {
    text-align: left;
    padding-left: 20px;
    min-width: 80px;
}


/* ---- 标签 ---- */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 0.8rem;
    letter-spacing: 1px;
    font-family: var(--font-ui);
    transition: transform var(--duration-fast) var(--ease-out);
}

.tag:hover { transform: translateY(-1px); }

.tag-gold {
    background: var(--gold-bg);
    color: var(--gold);
    border: 1px solid var(--gold-border);
}

.tag-ji {
    background: var(--ji-bg);
    color: var(--ji-brown);
    border: 1px solid rgba(184, 134, 90, 0.25);
}

.tag-lu {
    background: var(--green-bg);
    color: var(--green);
    border: 1px solid rgba(109, 163, 128, 0.25);
}

.tag-quan {
    background: rgba(168, 137, 80, 0.15);
    color: var(--gold-dim);
    border: 1px solid rgba(168, 137, 80, 0.3);
}

.tag-ke {
    background: rgba(109, 163, 128, 0.08);
    color: #8db89a;
    border: 1px solid rgba(109, 163, 128, 0.2);
}

/* 关注标签（首页展示常用关注领域） */
.focus-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.focus-tag {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    padding: 5px 14px;
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    color: var(--text-secondary);
    cursor: default;
    transition: all var(--duration-fast) var(--ease-out);
    background: var(--bg-deep);
}

.focus-tag:hover {
    border-color: var(--gold-border);
    color: var(--gold);
    background: var(--gold-bg);
}


/* ---- 加载状态 ---- */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-3xl);
    color: var(--text-muted);
}

.spinner {
    width: 28px;
    height: 28px;
    border: 2px solid var(--border-medium);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-text {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    letter-spacing: 2px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}


/* ---- 错误提示 ---- */
.error-box {
    background: rgba(200, 96, 74, 0.06);
    border: 1px solid rgba(200, 96, 74, 0.2);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    color: var(--red);
    margin-bottom: var(--space-lg);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.error-box::before { content: '⚠'; }


/* ---- 结果区域 ---- */
.result-section {
    display: none;
    animation: fadeSlideIn 0.5s var(--ease-smooth);
}

.result-section.visible { display: block; }

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 结果卡片交错动画 */
.result-section .card {
    animation: fadeSlideIn 0.4s var(--ease-smooth) backwards;
}

.result-section .card:nth-child(1) { animation-delay: 0.05s; }
.result-section .card:nth-child(2) { animation-delay: 0.1s;  }
.result-section .card:nth-child(3) { animation-delay: 0.15s; }
.result-section .card:nth-child(4) { animation-delay: 0.2s;  }
.result-section .card:nth-child(5) { animation-delay: 0.25s; }
.result-section .card:nth-child(6) { animation-delay: 0.3s;  }


/* ---- 首页 ---- */
.home-hero {
    text-align: center;
    padding: var(--space-3xl) 0 var(--space-2xl);
    position: relative;
}

.home-hero::before,
.home-hero::after {
    content: '';
    display: block;
    width: 120px;
    height: 1px;
    margin: 0 auto;
    background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
}

.home-hero::before { margin-bottom: var(--space-xl); }
.home-hero::after  { margin-top: var(--space-xl); }

.home-hero h1 {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: normal;
    color: var(--gold);
    letter-spacing: 24px;
    margin-bottom: var(--space-lg);
    animation: titleGlow 3s ease-in-out infinite alternate;
    text-shadow:
        0 0 20px rgba(201, 169, 110, 0.3),
        0 0 60px rgba(201, 169, 110, 0.15),
        0 0 100px rgba(180, 140, 80, 0.1),
        0 2px 4px rgba(0, 0, 0, 0.5);
}

@keyframes titleGlow {
    from { text-shadow: 0 0 20px rgba(201,169,110,0.25), 0 0 60px rgba(201,169,110,0.12), 0 0 100px rgba(180,140,80,0.08); }
    to   { text-shadow: 0 0 35px rgba(201,169,110,0.35), 0 0 80px rgba(201,169,110,0.18), 0 0 140px rgba(180,140,80,0.12); }
}

.home-hero .subtitle {
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--text-muted);
    letter-spacing: 10px;
    animation: fadeSlideIn 0.8s var(--ease-smooth) 0.15s backwards;
}

.home-hero .hero-divider {
    display: block;
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
    margin: var(--space-lg) auto;
}

.mode-cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

@media (max-width: 900px) {
    .mode-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 560px) {
    .mode-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

.mode-card {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-elevated) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-md);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--ease-smooth);
}

.mode-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
                                rgba(201, 169, 110, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s var(--ease-smooth);
}

.mode-card:hover {
    border-color: var(--gold-border);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),
                0 0 0 1px var(--gold-border);
}

.mode-card:hover::before { opacity: 1; }

.mode-card .mode-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    transition: transform 0.4s var(--ease-smooth);
}

.mode-card:hover .mode-icon { transform: scale(1.08); }

.mode-card .mode-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--gold);
    margin-bottom: var(--space-sm);
    letter-spacing: 3px;
    font-weight: normal;
}

.mode-card .mode-desc {
    font-family: var(--font-ui);
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.6;
    letter-spacing: 1px;
    word-break: keep-all;
    overflow-wrap: break-word;
}


/* ---- 底部 ---- */
.app-footer {
    text-align: center;
    padding: var(--space-xl) 0;
    margin-top: var(--space-3xl);
    border-top: 1px solid var(--border-subtle);
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    letter-spacing: 3px;
    position: relative;
}

.app-footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 1px;
    background: var(--gold-dim);
}


/* ---- 网格工具 ---- */
.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.result-grid .full-width { grid-column: 1 / -1; }

/* 信息条 */
.info-row {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-subtle);
    flex-wrap: wrap;
}

.info-row:last-child { border-bottom: none; }

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.info-label {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.info-value {
    font-family: var(--font-display);
    color: var(--text-primary);
}

.info-value.highlight { color: var(--gold); }

/* 四化图例 */
.sihua-legend {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-top: var(--space-sm);
}


/* ---- 响应式 ---- */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
    }

    .nav-links { gap: var(--space-lg); }

    .home-hero h1 {
        font-size: 2.2rem;
        letter-spacing: 12px;
    }

    .result-grid { grid-template-columns: 1fr; }

    .form-row { grid-template-columns: 1fr 1fr; }

    .card { padding: var(--space-lg); }

    .data-table { font-size: 0.8rem; }
    .data-table thead th,
    .data-table tbody td { padding: 8px 10px; }
}


/* ---- 工具类 ---- */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-gold  { color: var(--gold); }
.text-sm { font-size: 0.85rem; }
.overflow-x { overflow-x: auto; }

/* 报告按钮复制成功状态 */
.btn-copied {
    background: var(--green) !important;
    border-color: var(--green) !important;
    color: #fff !important;
}

/* ---- 关注反馈卡片 ---- */
.card-focus {
    border-color: var(--gold-border);
    background: linear-gradient(135deg, rgba(201,169,110,0.06) 0%, var(--bg-elevated) 100%);
}

.focus-feedback {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.focus-feedback-icon {
    font-size: 1.4rem;
    color: var(--gold);
    flex-shrink: 0;
    margin-top: 2px;
}

.focus-feedback-body {
    flex: 1;
}

.focus-feedback-title {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: var(--space-sm);
}

.focus-feedback-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--text-primary);
    letter-spacing: 2px;
    line-height: 1.7;
    margin-bottom: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-deep);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--gold-dim);
}

.focus-feedback-hint {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}


/* ══════════════════════════════════════════════
   紫微十二宫格 · 命盘可视化
   ══════════════════════════════════════════════ */

.palace-grid-container {
    position: relative;
    margin: var(--space-md) auto;
    max-width: 720px;
}

.palace-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(4, auto);
    gap: 2px;
    border: 1px solid var(--border-medium);
    background: var(--border-medium);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

/* 宫格单元格 */
.palace-cell {
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
    padding: 10px 8px;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    transition: background var(--duration-fast) var(--ease-out);
    cursor: default;
    overflow: hidden;
}

.palace-cell::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(201, 169, 110, 0.04) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s var(--ease-out);
}

.palace-cell:hover {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-hover) 100%);
}

.palace-cell:hover::before { opacity: 1; }

/* 命宫和身宫高亮 */
.palace-cell.is-soul {
    border-left: 2px solid var(--gold);
}
.palace-cell.is-body {
    border-right: 2px solid var(--gold-dim);
}
.palace-cell.is-soul.is-body {
    border-left: 2px solid var(--gold);
    border-right: 2px solid var(--gold-dim);
}

/* 宫位地支角标 */
.palace-branch {
    position: absolute;
    top: 4px;
    right: 6px;
    font-family: var(--font-ui);
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    opacity: 0.6;
}

/* 宫位名 */
.palace-name {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--gold);
    letter-spacing: 2px;
    margin-bottom: 2px;
    text-align: center;
}

.palace-name .soul-mark,
.palace-name .body-mark {
    font-size: 0.6rem;
    letter-spacing: 0;
    margin-left: 2px;
}

.palace-name .soul-mark { color: var(--gold); }
.palace-name .body-mark { color: var(--gold-dim); }

/* 干支 */
.palace-stem-branch {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

/* 主星 */
.palace-stars {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    flex: 1;
}

.palace-star {
    font-family: var(--font-display);
    font-size: 0.78rem;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.3;
    letter-spacing: 1px;
}

.palace-star.is-miao  { color: #e8c97a; }
.palace-star.is-wang  { color: #d4b87a; }
.palace-star.is-de    { color: var(--text-primary); }
.palace-star.is-li    { color: var(--text-secondary); }
.palace-star.is-ping  { color: var(--text-secondary); }
.palace-star.is-bu    { color: var(--text-muted); }
.palace-star.is-xian  { color: var(--text-muted); }

.palace-star.no-star {
    color: var(--text-dim);
    font-style: italic;
}

/* 四化标签行 */
.palace-mutagens {
    display: flex;
    gap: 3px;
    margin-top: 4px;
    flex-wrap: wrap;
    justify-content: center;
}

.palace-mutagen {
    font-family: var(--font-ui);
    font-size: 0.6rem;
    padding: 1px 5px;
    border-radius: 2px;
    letter-spacing: 1px;
}

.palace-mutagen.lu  { background: var(--green-bg); color: var(--green); border: 1px solid rgba(109,163,128,0.2); }
.palace-mutagen.quan { background: rgba(168,137,80,0.15); color: var(--gold-dim); border: 1px solid rgba(168,137,80,0.25); }
.palace-mutagen.ke  { background: rgba(141,185,154,0.08); color: #8db89a; border: 1px solid rgba(141,185,154,0.2); }
.palace-mutagen.ji  { background: var(--ji-bg); color: var(--ji-brown); border: 1px solid rgba(184,134,90,0.2); }

/* 中心区域 */
.palace-center {
    grid-row: 2 / 4;
    grid-column: 2 / 4;
    background: var(--bg-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    position: relative;
}

.palace-center::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at center, rgba(201,169,110,0.06) 0%, transparent 60%),
        radial-gradient(circle at 30% 30%, rgba(201,169,110,0.03) 0%, transparent 40%);
}

.palace-center-inner {
    position: relative;
    z-index: 1;
    text-align: center;
}

.palace-center .center-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--gold);
    letter-spacing: 3px;
    margin-bottom: var(--space-sm);
}

.palace-center .center-info {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    line-height: 1.8;
}

.palace-center .center-info span {
    color: var(--text-secondary);
}

/* 宫格图例 */
.palace-legend {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-top: var(--space-md);
    padding: var(--space-sm) 0;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.palace-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.palace-legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.palace-legend-dot.soul { background: var(--gold); }
.palace-legend-dot.body { background: var(--gold-dim); }

/* 宫格响应式 */
@media (max-width: 700px) {
    .palace-cell {
        padding: 6px 4px;
        min-height: 80px;
    }
    .palace-name { font-size: 0.75rem; letter-spacing: 1px; }
    .palace-star { font-size: 0.68rem; }
    .palace-branch { font-size: 0.55rem; top: 2px; right: 3px; }
}

@media (max-width: 480px) {
    .palace-grid {
        gap: 1px;
    }
    .palace-cell {
        padding: 4px 2px;
        min-height: 65px;
    }
    .palace-name { font-size: 0.65rem; }
    .palace-star { font-size: 0.58rem; }
    .palace-mutagen { font-size: 0.5rem; padding: 0 3px; }
    .palace-center .center-title { font-size: 0.7rem; }
    .palace-center .center-info { font-size: 0.6rem; }
}


/* ══════════════════════════════════════════════
   报告内容渲染
   ══════════════════════════════════════════════ */

.card-report {
    border-color: var(--gold-border);
    animation: fadeSlideIn 0.5s var(--ease-smooth);
}

.card-report-done {
    border-color: var(--gold-border);
    position: relative;
}

.card-report-done::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
}

.report-content {
    font-family: var(--font-display);
    color: var(--text-primary);
    line-height: 1.85;
    font-size: 0.95rem;
}

.report-content p {
    margin-bottom: var(--space-md);
    text-indent: 2em;
}

.report-content p:first-child { text-indent: 0; }

.report-content .report-h2,
.report-content .report-h3,
.report-content .report-h4 {
    color: var(--gold);
    font-weight: normal;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    letter-spacing: 2px;
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-subtle);
}

.report-content .report-h2 { font-size: 1.3rem; }
.report-content .report-h3 { font-size: 1.1rem; }
.report-content .report-h4 { font-size: 0.95rem; border-bottom: none; }

.report-content strong {
    color: var(--gold);
    font-weight: normal;
}

.report-content hr {
    border: none;
    border-top: 1px solid var(--border-subtle);
    margin: var(--space-lg) 0;
}

.report-body {
    margin-top: var(--space-md);
}

.report-content .report-table {
    margin: var(--space-md) 0 var(--space-lg);
    width: 100%;
    border-collapse: collapse;
}

.report-content .report-table th,
.report-content .report-table td {
    padding: 10px 14px;
    border: 1px solid var(--border-subtle);
    text-align: center;
    font-size: 0.9rem;
}

.report-content .report-table th {
    background: rgba(201, 169, 110, 0.08);
    color: var(--gold);
    font-weight: normal;
    letter-spacing: 1px;
}

.report-content .report-table tbody tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.012);
}

.report-content ul, .report-content ol {
    padding-left: 2em;
    margin-bottom: var(--space-md);
}

.report-content li {
    margin-bottom: var(--space-xs);
}