/* ========================================
   XTTP6 - Vibrant Tech White (参考骁通模板)
   系统字体（无境外字体链接），蓝紫渐变主色
   ======================================== */

:root {
    --radius: 0.75rem;
    --radius-sm: calc(var(--radius) - 4px);
    --radius-md: calc(var(--radius) - 2px);
    --radius-lg: var(--radius);
    --radius-xl: calc(var(--radius) + 4px);
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;

    /* Vibrant Tech White - Light */
    --background: #ffffff;
    --foreground: #1a1a1f;
    --card: #ffffff;
    --card-foreground: #1a1a1f;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --input: #e5e7eb;
    --muted: #f4f4f5;
    --muted-foreground: #71717a;

    /* Primary: Vibrant Blue */
    --primary: #2563eb;
    --primary-foreground: #ffffff;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-border: #bfdbfe;

    /* Accent: Purple */
    --accent: #7c3aed;
    --accent-foreground: #ffffff;
    --accent-light: #f5f3ff;
    --accent-border: #e9d5ff;

    /* Gradient: Blue to Purple */
    --gradient-start: #2563eb;
    --gradient-end: #7c3aed;
    --gradient-text: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    --gradient-btn: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);

    /* Section / Badge colors */
    --badge-blue-bg: #eff6ff;
    --badge-blue-text: #1d4ed8;
    --badge-blue-border: #bfdbfe;
    --badge-purple-bg: #f5f3ff;
    --badge-purple-text: #6d28d9;
    --badge-green-bg: #f0fdf4;
    --badge-green-text: #15803d;
    --badge-orange-bg: #fff7ed;
    --badge-orange-text: #c2410c;
    --badge-cyan-bg: #ecfeff;
    --badge-cyan-text: #0e7490;

    /* Gray scale */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    --font-display: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--foreground);
    background: var(--background);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button:not(:disabled),
[role="button"]:not([aria-disabled="true"]),
a[href] {
    cursor: pointer;
}

/* Gradient text */
.xt6-gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Gradient button */
.xt6-gradient-btn {
    background: var(--gradient-btn);
    color: var(--primary-foreground);
    border: none;
    font-weight: 600;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.xt6-gradient-btn:hover {
    box-shadow: 0 10px 40px -10px rgba(37, 99, 235, 0.5);
    transform: translateY(-2px);
}

/* Badge */
.xt6-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 9999px;
    border: 1px solid;
}

.xt6-badge-blue {
    background: var(--badge-blue-bg);
    color: var(--badge-blue-text);
    border-color: var(--badge-blue-border);
}

.xt6-badge-purple {
    background: var(--badge-purple-bg);
    color: var(--badge-purple-text);
    border-color: var(--accent-border);
}

.xt6-badge-green {
    background: var(--badge-green-bg);
    color: var(--badge-green-text);
    border-color: #bbf7d0;
}

.xt6-badge-orange {
    background: var(--badge-orange-bg);
    color: var(--badge-orange-text);
    border-color: #fed7aa;
}

.xt6-badge-cyan {
    background: var(--badge-cyan-bg);
    color: var(--badge-cyan-text);
    border-color: #a5f3fc;
}

/* Container */
.xt6-container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .xt6-container { padding-left: 1.5rem; padding-right: 1.5rem; }
}

@media (min-width: 1024px) {
    .xt6-container { padding-left: 2rem; padding-right: 2rem; }
}

/* Card elevated */
.xt6-card-elevated {
    background: var(--card);
    border-radius: 1rem;
    border: 1px solid var(--border-light);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 10px 40px -10px rgba(37, 99, 235, 0.1);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.xt6-card-elevated:hover {
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 20px 60px -15px rgba(37, 99, 235, 0.2);
    transform: translateY(-4px);
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }