/* ============================================================
   智测星 · 全局样式 (V3.1 - 含暗黑主题扩展)
   设计令牌 + 暖色标杆 + 暗黑主题（塔罗/占星/符文等）
   ============================================================ */

/* ===== 1. CSS 变量 (设计令牌) ===== */
:root {
    /* ----- 品牌色（暖色标杆） ----- */
    --color-red: #B33939;
    --color-red-dark: #9A2D2D;
    --color-gold: #C9A96E;
    --color-gold-dark: #B8974A;
    --color-gold-light: #E8D5A3;
    --color-gold-bg: #FFF8F0;

    /* ----- 中性色（暖色标杆） ----- */
    --bg: #F7F3EE;
    --bg-light: #FAF8F5;
    --bg-white: #FFFFFF;
    --text-primary: #2C2C2C;
    --text-secondary: #5A5A5A;
    --text-muted: #6b7a8a;
    --text-inverse: #FFFFFF;
    --border-color: #E8E0D8;
    --shadow-color: rgba(44, 44, 44, 0.08);

    /* ----- 暗黑品牌色（暗黑页面专用） ----- */
    --color-gold-dark-theme: #d4a84b;
    --color-gold-dark-theme-hover: #e8c060;

    /* ----- 排版 ----- */
    --font-serif: "Noto Serif SC", "华文楷体", "KaiTi", "STKaiti", serif;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;

    /* ----- 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: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* ----- 阴影 ----- */
    --shadow-sm: 0 2px 8px var(--shadow-color);
    --shadow-md: 0 8px 30px var(--shadow-color);
    --shadow-lg: 0 16px 48px var(--shadow-color);
    --shadow-red: 0 4px 20px rgba(179, 57, 57, 0.25);
    --shadow-gold: 0 4px 20px rgba(201, 169, 110, 0.30);

    /* ----- 布局 ----- */
    --nav-height: 64px;
    --nav-height-mobile: 54px;
    --container-max: 1200px;
    --container-padding: 24px;

    /* ----- 断点 ----- */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
}

/* ===== 2. 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: var(--nav-height);
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== 3. 工具类 ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 4px;
    color: var(--text-primary);
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-gold);
    margin: var(--space-sm) auto 0;
}

.section-sub {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: var(--space-sm);
    letter-spacing: 1px;
}

/* ===== 4. 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(247, 243, 238, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(201, 169, 110, 0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 var(--container-padding);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0;
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.nav-logo .logo-main {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
}

.nav-logo .logo-sub {
    font-size: 0.75rem;
    color: var(--color-gold);
    letter-spacing: 2px;
    font-weight: 300;
    border-left: 1px solid var(--color-gold);
    padding-left: var(--space-sm);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.nav-menu a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
    position: relative;
    text-decoration: none;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-red);
}

.nav-menu a.active::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-red);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--space-xs) var(--space-sm);
    line-height: 1;
}

/* ===== 5. 页脚 ===== */
.footer {
    background: #2C2C2C;
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer .footer-container {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: var(--space-xl);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-inverse);
    display: block;
    letter-spacing: 2px;
}

.footer-sub {
    font-size: 0.75rem;
    color: var(--color-gold);
    letter-spacing: 4px;
}

.footer-desc {
    font-size: 0.85rem;
    margin-top: var(--space-sm);
    color: rgba(255, 255, 255, 0.5);
}

.footer-col h4 {
    color: var(--text-inverse);
    font-size: 0.85rem;
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.footer-col a {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    padding: var(--space-xs) 0;
    transition: color 0.3s ease;
    text-decoration: none;
}

.footer-col a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ===== 6. 通用组件（暖色） ===== */

/* 卡片 */
.card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--space-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* 主要按钮（红色） */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 40px;
    background: var(--color-red);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 1px;
    text-align: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-red);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--color-red-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(179, 57, 57, 0.35);
    color: var(--text-inverse);
}

.btn-primary:active {
    transform: scale(0.96);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* 金色按钮（暖色） */
.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 40px;
    background: var(--color-gold);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 1px;
    text-align: center;
    gap: var(--space-sm);
    box-shadow: var(--shadow-gold);
    text-decoration: none;
}

.btn-gold:hover {
    background: var(--color-gold-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(201, 169, 110, 0.40);
    color: var(--text-inverse);
}

.btn-gold:active {
    transform: scale(0.96);
}

.btn-gold:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* 次要按钮（透明边框） */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    gap: var(--space-sm);
}

.btn-secondary:hover {
    background: var(--bg);
    border-color: var(--color-gold);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: scale(0.96);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.form-group label .required {
    color: var(--color-red);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    background: var(--bg-light);
    color: var(--text-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 4px rgba(201, 169, 110, 0.15);
}

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

.form-group .hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* ===== 7. Hero 区域（内页通用） ===== */
.hero-inner {
    padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
    text-align: center;
    background: linear-gradient(160deg, var(--bg) 0%, #EDE8E0 100%);
}

.hero-inner h1 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text-primary);
    letter-spacing: 6px;
    margin-bottom: var(--space-sm);
}

.hero-inner .sub {
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    color: var(--text-secondary);
    letter-spacing: 3px;
    margin-bottom: var(--space-xs);
}

.hero-inner .desc {
    font-size: clamp(0.85rem, 1vw, 1rem);
    color: var(--text-secondary);
    max-width: 560px;
    margin: var(--space-sm) auto 0;
    line-height: 1.8;
    letter-spacing: 1px;
}

/* ============================================================ */
/* ===== 8. 暗黑主题扩展 (.theme-dark) ===== */
/* ============================================================ */

.theme-dark {
    /* ----- 暗黑背景 ----- */
    --bg-dark-start: #0a0a1a;
    --bg-dark-mid: #1a0a2e;
    --bg-dark-end: #0d1b2a;
    --bg-dark-card: rgba(255, 255, 255, 0.04);
    --bg-dark-card-hover: rgba(255, 255, 255, 0.07);

    /* ----- 暗黑文字 ----- */
    --text-dark-primary: #ffffff;
    --text-dark-secondary: rgba(255, 255, 255, 0.6);
    --text-dark-muted: rgba(255, 255, 255, 0.3);
    --text-dark-dim: rgba(255, 255, 255, 0.15);

    /* ----- 暗黑品牌色（亮金色） ----- */
    --color-gold-dark-theme: #d4a84b;
    --color-gold-dark-theme-hover: #e8c060;
    --color-gold-dark-theme-dim: rgba(212, 168, 75, 0.15);

    /* ----- 暗黑边框 ----- */
    --border-dark: rgba(255, 255, 255, 0.06);
    --border-dark-gold: rgba(212, 168, 75, 0.2);

    /* ----- 暗黑阴影 ----- */
    --shadow-dark-card: 0 8px 40px rgba(0, 0, 0, 0.6);
    --shadow-dark-glow: 0 0 30px rgba(212, 168, 75, 0.15);

    /* ----- 覆盖 body ----- */
    background: var(--bg-dark-start);
    color: var(--text-dark-primary);
    min-height: 100vh;
}

/* ---- 暗黑页面包装器（星空背景 + 渐变） ---- */
.theme-dark .page-wrapper-dark {
    min-height: 100vh;
    background: linear-gradient(145deg, var(--bg-dark-start) 0%, var(--bg-dark-mid) 40%, var(--bg-dark-end) 100%);
    display: flex;
    flex-direction: column;
    padding: calc(var(--nav-height) + var(--space-lg)) var(--space-lg) var(--space-3xl);
    position: relative;
}

/* ---- 星空点点效果 ---- */
.theme-dark .page-wrapper-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(2px 2px at 20px 30px, #eee, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(2px 2px at 50px 160px, #ddd, transparent),
        radial-gradient(2px 2px at 90px 40px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 130px 80px, #fff, transparent),
        radial-gradient(2px 2px at 160px 30px, rgba(255,255,255,0.7), transparent),
        radial-gradient(2px 2px at 200px 120px, rgba(255,255,255,0.4), transparent),
        radial-gradient(2px 2px at 250px 50px, #eee, transparent);
    background-size: 300px 300px;
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

/* ---- 暗黑内容区（相对定位） ---- */
.theme-dark .dark-content {
    position: relative;
    z-index: 1;
    max-width: 820px;
    width: 100%;
    margin: 0 auto;
    flex: 1;
    text-align: center;
}

/* ---- 暗黑返回按钮 ---- */
.theme-dark .back-btn-dark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dark-muted);
    font-size: 0.9rem;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.theme-dark .back-btn-dark:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-dark-primary);
}

/* ---- 暗黑标题 ---- */
.theme-dark .title-dark {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: clamp(2rem, 5vw, 2.8rem);
    color: var(--color-gold-dark-theme);
    text-shadow: 0 0 30px rgba(212, 168, 75, 0.25);
    letter-spacing: 6px;
    margin: 0;
}

.theme-dark .subtitle-dark {
    color: var(--text-dark-muted);
    font-size: clamp(0.8rem, 1.5vw, 0.95rem);
    letter-spacing: 4px;
}

/* ---- 暗黑卡片（毛玻璃） ---- */
.theme-dark .card-dark {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-dark-gold);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.theme-dark .card-dark:hover {
    border-color: rgba(212, 168, 75, 0.35);
    transform: translateY(-2px);
}

/* ---- 暗黑按钮（亮金色） ---- */
.theme-dark .btn-gold-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    background: linear-gradient(135deg, var(--color-gold-dark-theme), #b8923a);
    color: #0a0a1a;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
    text-decoration: none;
    gap: var(--space-sm);
    box-shadow: 0 4px 20px rgba(212, 168, 75, 0.3);
    position: relative;
    overflow: hidden;
}

.theme-dark .btn-gold-dark:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 168, 75, 0.4);
}

.theme-dark .btn-gold-dark:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.theme-dark .btn-gold-dark.loading {
    opacity: 0.8;
}

.theme-dark .btn-gold-dark.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    border: 3px solid rgba(10, 10, 26, 0.3);
    border-top-color: #0a0a1a;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

/* ---- 暗黑次要按钮 ---- */
.theme-dark .btn-secondary-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    background: transparent;
    color: var(--text-dark-secondary);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    gap: var(--space-sm);
}

.theme-dark .btn-secondary-dark:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-dark-primary);
}

.theme-dark .btn-secondary-dark:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ---- 暗黑表单 ---- */
.theme-dark .form-group-dark {
    margin-bottom: var(--space-md);
}

.theme-dark .form-group-dark label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-dark-secondary);
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.theme-dark .form-group-dark label .required {
    color: var(--color-gold-dark-theme);
}

.theme-dark .form-group-dark input,
.theme-dark .form-group-dark select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-dark-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.theme-dark .form-group-dark input:focus,
.theme-dark .form-group-dark select:focus {
    outline: none;
    border-color: var(--color-gold-dark-theme);
    box-shadow: 0 0 0 4px rgba(212, 168, 75, 0.1);
}

.theme-dark .form-group-dark input::placeholder {
    color: var(--text-dark-dim);
}

.theme-dark .form-group-dark select option {
    background: #1a1040;
    color: #fff;
}

/* ---- 暗黑弹窗（毛玻璃） ---- */
.theme-dark .modal-overlay-dark {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 99999;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: modalFadeIn 0.3s ease;
}

.theme-dark .modal-overlay-dark.active {
    display: flex;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.theme-dark .modal-box-dark {
    background: linear-gradient(160deg, #1a1040, #0d0a2a);
    max-width: 520px;
    width: 100%;
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-xl) var(--space-xl);
    border: 1px solid var(--border-dark-gold);
    box-shadow: var(--shadow-dark-card);
    position: relative;
    animation: modalSlideUp 0.35s cubic-bezier(0.22, 1, 0.36, 1);
    max-height: 90vh;
    overflow-y: auto;
}

@keyframes modalSlideUp {
    from { opacity: 0; transform: translateY(30px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.theme-dark .modal-box-dark::-webkit-scrollbar {
    width: 4px;
}

.theme-dark .modal-box-dark::-webkit-scrollbar-thumb {
    background: rgba(212, 168, 75, 0.3);
    border-radius: 4px;
}

.theme-dark .modal-box-dark .modal-close-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-dark-dim);
    font-size: 1.6rem;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.theme-dark .modal-box-dark .modal-close-btn:hover {
    color: var(--text-dark-secondary);
}

.theme-dark .modal-box-dark .modal-emoji {
    font-size: 3.2rem;
    text-align: center;
    margin-bottom: var(--space-xs);
}

.theme-dark .modal-box-dark .modal-title {
    font-family: 'Georgia', serif;
    font-size: 1.6rem;
    color: var(--color-gold-dark-theme);
    text-align: center;
    font-weight: bold;
}

.theme-dark .modal-box-dark .modal-sub {
    text-align: center;
    color: var(--text-dark-dim);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.theme-dark .modal-box-dark .modal-body {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-gold-dark-theme);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.95rem;
    line-height: 1.9;
    margin-bottom: var(--space-md);
    text-align: left;
}

.theme-dark .modal-box-dark .modal-body strong {
    color: var(--color-gold-dark-theme);
}

.theme-dark .modal-box-dark .modal-btn-ok {
    display: block;
    width: 100%;
    padding: 12px 0;
    border: none;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-gold-dark-theme), #b8923a);
    color: #0a0a1a;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    letter-spacing: 1px;
    font-family: var(--font-sans);
}

.theme-dark .modal-box-dark .modal-btn-ok:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 168, 75, 0.3);
}

/* ---- 暗黑 Toast ---- */
.theme-dark .toast-dark {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    color: #fff;
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-size: clamp(0.8rem, 1.2vw, 0.9rem);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.06);
    max-width: 90%;
    text-align: center;
}

.theme-dark .toast-dark.show {
    opacity: 1;
}

/* ---- 暗黑响应式（统一断点） ---- */

/* 平板及以下 */
@media (max-width: 992px) {
    :root {
        --container-padding: 16px;
    }
}

/* 手机端 */
@media (max-width: 768px) {
    :root {
        --nav-height: var(--nav-height-mobile);
    }

    body {
        padding-top: var(--nav-height);
    }

    .theme-dark .page-wrapper-dark {
        padding: calc(var(--nav-height) + var(--space-lg)) var(--space-md) var(--space-2xl);
    }

    .theme-dark .dark-content {
        max-width: 100%;
    }

    .theme-dark .modal-box-dark {
        padding: var(--space-lg) var(--space-md) var(--space-lg);
        margin: 10px;
    }

    .theme-dark .modal-box-dark .modal-title {
        font-size: 1.3rem;
    }

    .theme-dark .modal-box-dark .modal-body {
        font-size: 0.88rem;
        padding: var(--space-md);
    }

    .theme-dark .title-dark {
        font-size: 2rem;
        letter-spacing: 3px;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(8px);
        padding: var(--space-md) var(--space-md) var(--space-lg);
        flex-direction: column;
        gap: var(--space-xs);
        box-shadow: var(--shadow-md);
        max-height: 65vh;
        overflow-y: auto;
        border-bottom: 1px solid rgba(201, 169, 110, 0.15);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu a {
        display: block;
        padding: var(--space-sm) var(--space-md);
        border-radius: var(--radius-sm);
        border-bottom: 1px solid rgba(201, 169, 110, 0.06);
        font-size: 0.9rem;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
        background: rgba(179, 57, 57, 0.06);
    }

    .nav-toggle {
        display: block;
    }

    .footer .footer-container {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-inner {
        padding-top: calc(var(--nav-height) + var(--space-lg));
    }

    .section-title {
        font-size: 1.6rem;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .theme-dark .page-wrapper-dark {
        padding: calc(var(--nav-height) + var(--space-sm)) var(--space-sm) var(--space-xl);
    }

    .theme-dark .title-dark {
        font-size: 1.6rem;
        letter-spacing: 3px;
    }

    .theme-dark .modal-box-dark {
        padding: var(--space-md) var(--space-md) var(--space-md);
        margin: 8px;
    }

    .theme-dark .modal-box-dark .modal-title {
        font-size: 1.1rem;
    }

    .theme-dark .modal-box-dark .modal-body {
        font-size: 0.85rem;
        padding: var(--space-md);
    }

    .theme-dark .modal-box-dark .modal-emoji {
        font-size: 2.6rem;
    }

    .nav-logo .logo-main {
        font-size: 1rem;
    }

    .nav-logo .logo-sub {
        font-size: 0.55rem;
        padding-left: var(--space-xs);
    }

    .section-title {
        font-size: 1.4rem;
    }

    .hero-inner h1 {
        font-size: 1.8rem;
    }

    .btn-primary,
    .btn-gold,
    .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    .theme-dark .btn-gold-dark,
    .theme-dark .btn-secondary-dark {
        padding: 10px 20px;
        font-size: 0.9rem;
        min-width: 100px;
    }
}

/* ===== 链接和按钮突出显示（全局统一） ===== */
a:not(.hero-btn):not(.btn-primary):not(.btn-gold):not(.btn-secondary):not(.feature-link):not(.nav-menu a):not(.footer-col a):not(.guide-btn):not(.btn-gold-dark):not(.btn-secondary-dark) {
    color: var(--color-red, #B33939);
    font-weight: 500;
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(179, 57, 57, 0.3);
}

a:not(.hero-btn):not(.btn-primary):not(.btn-gold):not(.btn-secondary):not(.feature-link):not(.nav-menu a):not(.footer-col a):not(.guide-btn):not(.btn-gold-dark):not(.btn-secondary-dark):hover {
    color: var(--color-red-dark, #9A2D2D);
    text-decoration-color: var(--color-red, #B33939);
}

/* 暗黑主题下的普通链接（保持可读性） */
.theme-dark a:not(.hero-btn):not(.btn-primary):not(.btn-gold):not(.btn-secondary):not(.feature-link):not(.nav-menu a):not(.footer-col a):not(.guide-btn):not(.btn-gold-dark):not(.btn-secondary-dark) {
    color: var(--color-gold-dark-theme);
    text-decoration-color: rgba(212, 168, 75, 0.3);
}

.theme-dark a:not(.hero-btn):not(.btn-primary):not(.btn-gold):not(.btn-secondary):not(.feature-link):not(.nav-menu a):not(.footer-col a):not(.guide-btn):not(.btn-gold-dark):not(.btn-secondary-dark):hover {
    color: var(--color-gold-dark-theme-hover);
    text-decoration-color: var(--color-gold-dark-theme);
}

/* ===== 导航栏下拉菜单（新增） ===== */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-toggle {
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary, #5A5A5A);
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
    text-decoration: none;
}

.nav-dropdown-toggle:hover {
    color: var(--color-red, #B33939);
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    min-width: 200px;
    padding: 12px 0;
    border-radius: var(--radius-md, 12px);
    box-shadow: var(--shadow-lg, 0 16px 48px rgba(44, 44, 44, 0.12));
    border: 1px solid rgba(201, 169, 110, 0.15);
    z-index: 999;
    flex-direction: column;
}

.nav-dropdown-menu.open {
    display: flex;
}

@media (max-width: 768px) {
    .nav-dropdown {
        width: 100%;
    }
    .nav-dropdown-toggle {
        display: block;
        padding: var(--space-sm) var(--space-md);
        border-radius: var(--radius-sm);
        border-bottom: 1px solid rgba(201, 169, 110, 0.06);
        font-size: 0.9rem;
    }
    .nav-dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(247, 243, 238, 0.5);
        border-radius: 0;
        padding: 0 0 8px 0;
        min-width: unset;
        width: 100%;
    }
    .nav-dropdown-menu a {
        padding: 6px 16px 6px 24px;
        font-size: 0.85rem;
        white-space: normal;
    }
}

/* ============================================================ */
/* ===== 9. 品牌矩阵（首页三栏布局） ===== */
/* ============================================================ */

.brand-matrix-section {
    padding: var(--space-xl) 0 var(--space-2xl);
    background: var(--bg-white);
}

.matrix-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.matrix-col {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: var(--space-lg) var(--space-lg) var(--space-lg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.matrix-col:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.col-header {
    text-align: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--space-md);
    margin-bottom: var(--space-md);
}

.col-icon {
    font-size: 2rem;
    display: block;
}

.col-header h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--space-xs) 0 0;
}

.col-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
    letter-spacing: 2px;
}

.col-east {
    background: linear-gradient(145deg, #fcf8f2, #f5efe6);
    border-color: var(--color-gold);
}

.col-east .col-header {
    border-bottom-color: var(--color-gold);
}

.col-east .col-header h3 {
    color: var(--color-red);
}

.col-nav {
    background: linear-gradient(160deg, #fdf6e3, #f5ebd0) !important;
    border-color: var(--color-gold) !important;
    border-width: 2px;
    box-shadow: 0 8px 40px rgba(201, 169, 110, 0.25) !important;
    position: relative;
    overflow: hidden;
}

.col-nav::before {
    content: '✦';
    position: absolute;
    top: -10px;
    right: 10px;
    font-size: 4rem;
    color: rgba(201, 169, 110, 0.12);
    pointer-events: none;
}

.col-nav .col-header {
    border-bottom-color: rgba(201, 169, 110, 0.4) !important;
}

.col-nav .col-header h3 {
    color: #8B6914 !important;
}

.col-nav .col-sub {
    color: #a08050 !important;
}

.col-center-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-xs) 0;
}

.wave-visual {
    display: flex;
    gap: 16px;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    justify-content: center;
}

.wave-label {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    background: rgba(201, 169, 110, 0.12) !important;
    color: #8B6914 !important;
    border: 1px solid rgba(201, 169, 110, 0.25) !important;
}

.wave-formula {
    font-size: 0.85rem;
    font-weight: 700;
    color: #7a5d0a !important;
    background: rgba(201, 169, 110, 0.12) !important;
    padding: 6px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
    letter-spacing: 1px;
    border: 1px solid rgba(201, 169, 110, 0.20) !important;
}

.center-desc {
    font-size: 0.8rem;
    color: #5a4a2a !important;
    line-height: 1.7;
    margin-bottom: var(--space-md);
    max-width: 280px;
}

.btn-nav-main {
    display: inline-block;
    padding: 12px 40px;
    border-radius: var(--radius-full);
    background: var(--color-gold) !important;
    color: var(--text-primary) !important;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 24px rgba(201, 169, 110, 0.3);
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
}

.btn-nav-main:hover {
    background: var(--color-gold-dark) !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(201, 169, 110, 0.45);
    color: var(--text-primary) !important;
}

.col-west {
    background: linear-gradient(145deg, #f5f0f5, #e8e0e8);
    border-color: #9a7a9a;
}

.col-west .col-header {
    border-bottom-color: #9a7a9a;
}

.col-west .col-header h3 {
    color: #5a2d5a;
}

.col-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    flex: 1;
    align-content: flex-start;
    padding: var(--space-xs) 0 var(--space-sm);
}

.tool-chip {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 24px;
    font-size: 0.8rem;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.25s ease;
    font-weight: 500;
    cursor: pointer;
}

.tool-chip:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
    background: var(--bg-white);
}

.col-east .tool-chip:hover {
    border-color: var(--color-gold);
    color: var(--color-red);
}

.col-west .tool-chip:hover {
    border-color: #9a7a9a;
    color: #5a2d5a;
}

.col-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding-top: var(--space-md);
    margin-top: var(--space-xs);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.col-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.col-more {
    font-size: 0.75rem;
    color: var(--color-red);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.col-more:hover {
    color: var(--color-red-dark);
    text-decoration: underline;
}

.col-west .col-more {
    color: #5a2d5a;
}

.col-west .col-more:hover {
    color: #3d1a3d;
}

.rank-badge {
    display: inline-block;
    font-size: 0.75rem;
    margin-left: 2px;
}

.tool-chip.rank-1 {
    background: linear-gradient(145deg, #fdf6e3, #f5ebd0) !important;
    border-color: var(--color-gold) !important;
    border-width: 2px;
    box-shadow: 0 2px 12px rgba(201, 169, 110, 0.15);
    font-weight: 600;
}

.tool-chip.rank-2 {
    border-color: #b0b0b0 !important;
    border-width: 2px;
    background: rgba(240, 240, 240, 0.6) !important;
}

.tool-chip.rank-3 {
    border-color: #cd7f32 !important;
    border-width: 2px;
    background: rgba(205, 127, 50, 0.06) !important;
}

/* 响应式-矩阵 */
@media (max-width: 1024px) {
    .matrix-grid {
        grid-template-columns: 1fr 1fr;
        gap: 18px;
    }
    .col-nav {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .matrix-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .col-nav {
        grid-column: auto;
    }
    .matrix-col {
        padding: var(--space-md) var(--space-md) var(--space-md);
    }
    .col-tools {
        gap: 6px;
    }
    .tool-chip {
        font-size: 0.7rem;
        padding: 4px 12px;
    }
    .wave-visual {
        gap: 8px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .wave-label {
        font-size: 0.65rem;
        padding: 2px 12px;
    }
    .center-desc {
        font-size: 0.7rem;
    }
    .btn-nav-main {
        padding: 10px 28px;
        font-size: 0.85rem;
    }
    .col-footer {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .matrix-header h2 {
        font-size: 1rem;
    }
    .matrix-header p {
        font-size: 0.8rem;
    }
    .col-header h3 {
        font-size: 1rem;
    }
    .tool-chip {
        font-size: 0.65rem;
        padding: 3px 10px;
    }
    .wave-formula {
        font-size: 0.7rem;
        padding: 4px 12px;
    }
}

/* ============================================================ */
/* ===== 10. 导航栏新增样式 ===== */
/* ============================================================ */

.nav-menu a.nav-special {
    color: #C9A96E !important;
    font-weight: 700 !important;
}

.nav-menu a.nav-special:hover {
    color: #dbb97e !important;
}

.nav-menu a.nav-coming {
    color: #999 !important;
    border-bottom: 1px dashed #ccc;
}

.nav-menu a.nav-coming:hover {
    color: #666 !important;
    border-bottom-color: #999;
}

.nav-menu a.nav-about {
    color: var(--text-secondary, #5A5A5A);
}

.nav-menu a.nav-about:hover {
    color: var(--color-red, #B33939);
}

@media (max-width: 768px) {
    .nav-menu a.nav-special {
        background: rgba(201, 169, 110, 0.08);
        border-radius: 6px;
        border-left: 3px solid #C9A96E;
        padding-left: 12px !important;
    }
    .nav-menu a.nav-coming {
        opacity: 0.6;
    }
}

/* ============================================================ */
/* ===== 11. 通用组件 - 介绍浮层（暖色版） ===== */
/* ============================================================ */

.intro-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    justify-content: center;
    align-items: center;
    z-index: 9999;
    padding: 24px;
    backdrop-filter: blur(6px);
    animation: fadeIn 0.3s ease;
}

.intro-overlay.show {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.intro-modal {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-xl) var(--space-xl);
    max-width: 520px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.35s ease;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.intro-modal .modal-icon {
    font-size: 3rem;
    text-align: center;
    display: block;
    margin-bottom: var(--space-xs);
}

.intro-modal .modal-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.intro-modal .modal-sub {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 14px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--space-md);
}

.intro-modal .modal-body {
    font-size: 0.92rem;
    line-height: 1.9;
    color: var(--text-secondary);
}

.intro-modal .modal-body p {
    margin-bottom: var(--space-sm);
}

.intro-modal .modal-body strong {
    color: var(--text-primary);
}

.intro-modal .modal-close {
    display: block;
    width: 100%;
    margin-top: var(--space-md);
    padding: 12px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--color-red);
    color: var(--text-inverse);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.25s ease;
    font-family: var(--font-sans);
}

.intro-modal .modal-close:hover {
    background: var(--color-red-dark);
}

@media (max-width: 768px) {
    .intro-modal {
        padding: var(--space-lg) var(--space-md);
        margin: 12px;
    }
}

@media (max-width: 480px) {
    .intro-modal .modal-title {
        font-size: 1.1rem;
    }
    .intro-modal .modal-body {
        font-size: 0.85rem;
    }
}

/* ============================================================ */
/* ===== 12. 引导组件 (guide-cta) 暖色版 ===== */
/* ============================================================ */

.guide-cta {
    margin-top: var(--space-lg);
    padding: var(--space-lg) var(--space-lg);
    background: var(--bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    text-align: center;
}

.guide-cta .guide-cta-title {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.guide-cta .guide-cta-title strong {
    color: var(--color-red);
}

.guide-cta .guide-cta-btns {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================================ */
/* ===== 13. 暗黑引导组件 (guide-cta) ===== */
/* ============================================================ */

.theme-dark .guide-cta-dark {
    margin-top: var(--space-lg);
    padding: var(--space-lg) var(--space-lg);
    background: var(--bg-dark-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-dark);
    text-align: center;
}

.theme-dark .guide-cta-dark .guide-cta-title {
    font-size: 1rem;
    color: var(--text-dark-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.theme-dark .guide-cta-dark .guide-cta-title strong {
    color: var(--color-gold-dark-theme);
}

.theme-dark .guide-cta-dark .guide-cta-btns {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}