/**
 * GPM-AI 成功案例页专用样式（ai_case.html）
 * 覆盖 commons.css / bootstrap 对本页 Tailwind 布局的干扰，不修改站点通用样式文件。
 */

/* ── 根字号：抵消 commons.css 的 html{font-size:100px} rem 放大 ── */
html.ai-page {
    font-size: 16px !important;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    --primary-blue: #2563eb;
    --color-gray-900: #111827;
    --color-white: #fff;
    --spacing: 0.25rem;
    --font-weight-bold: 700;
    --font-weight-medium: 500;
    --font-weight-light: 300;
    --text-xs: 0.75rem;
    --text-xs--line-height: calc(1 / 0.75);
    --text-sm: 0.875rem;
    --text-sm--line-height: calc(1.25 / 0.875);
    --text-lg: 1.125rem;
    --text-lg--line-height: calc(1.75 / 1.125);
    --text-2xl: 1.5rem;
    --text-2xl--line-height: calc(2 / 1.5);
    --text-3xl: 1.875rem;
    --text-3xl--line-height: calc(2.25 / 1.875);
    --text-4xl: 2.25rem;
    --text-4xl--line-height: calc(2.5 / 2.25);
    --text-5xl: 3rem;
    --text-5xl--line-height: 1;
    --text-6xl: 3.75rem;
    --text-6xl--line-height: 1;
    --text-7xl: 4.5rem;
    --text-7xl--line-height: 1;
    --leading-tight: 1.25;
    --leading-relaxed: 1.625;
    --leading-none: 1;
    --default-transition-duration: 150ms;
    --default-transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
#footer_tel {
    background-color: var(--color-white);
}
html.ai-page body {
    font-family: var(--font-sans);
    font-size: 16px;
    scroll-behavior: smooth;
    background-color: #fff;
    color: var(--color-gray-900);
}

/* ── 页头页脚：保持站点导航字号，不受本页内容样式影响 ── */
html.ai-page header {
    font-size: 12px;
    background-color: unset !important;
}

html.ai-page header .lang {
    font-size: 14px;
}

html.ai-page footer {
    font-size: 12px;
}

/* ── 内容区：重置 commons 全局 margin/padding/transition 限制 ── */
html.ai-page .wrapper {
    position: relative;
    width: 100%;
}

html.ai-page .wrapper section,
html.ai-page .wrapper article,
html.ai-page .wrapper aside,
html.ai-page .wrapper main,
html.ai-page .wrapper div,
html.ai-page .wrapper p,
html.ai-page .wrapper h1,
html.ai-page .wrapper h2,
html.ai-page .wrapper h3,
html.ai-page .wrapper h4,
html.ai-page .wrapper h5,
html.ai-page .wrapper h6,
html.ai-page .wrapper ul,
html.ai-page .wrapper ol,
html.ai-page .wrapper li,
html.ai-page .wrapper a,
html.ai-page .wrapper button,
html.ai-page .wrapper img {
    box-sizing: border-box;
}

html.ai-page .wrapper h1,
html.ai-page .wrapper h2,
html.ai-page .wrapper h3 {
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

html.ai-page .wrapper button.cta-btn {
    margin: 0;
    padding: 0 22px 0 14px;
    line-height: normal;
    -webkit-appearance: none;
    appearance: none;
}

/* ── Tailwind 工具类兜底（commons 后加载时仍生效） ── */
html.ai-page .wrapper .antialiased {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html.ai-page .wrapper .relative { position: relative; }
html.ai-page .wrapper .absolute { position: absolute; }
html.ai-page .wrapper .overflow-hidden { overflow: hidden; }
html.ai-page .wrapper .block { display: block; }
html.ai-page .wrapper .flex { display: flex; }
html.ai-page .wrapper .grid { display: grid; }
html.ai-page .wrapper .inline-flex { display: inline-flex; }
html.ai-page .wrapper .flex-wrap { flex-wrap: wrap; }
html.ai-page .wrapper .flex-shrink-0 { flex-shrink: 0; }
html.ai-page .wrapper .items-center { align-items: center; }
html.ai-page .wrapper .justify-center { justify-content: center; }
html.ai-page .wrapper .text-center { text-align: center; }
html.ai-page .wrapper .uppercase { text-transform: uppercase; }
html.ai-page .wrapper .w-full { width: 100%; }
html.ai-page .wrapper .h-auto { height: auto; }
html.ai-page .wrapper .mx-auto { margin-left: auto; margin-right: auto; }

html.ai-page .wrapper .z-10 { z-index: 10; }
html.ai-page .wrapper .bottom-0 { bottom: 0; }
html.ai-page .wrapper .left-0 { left: 0; }
html.ai-page .wrapper .right-0 { right: 0; }

html.ai-page .wrapper .max-w-2xl { max-width: 42rem; }
html.ai-page .wrapper .max-w-3xl { max-width: 48rem; }
html.ai-page .wrapper .max-w-7xl { max-width: 80rem; }

html.ai-page .wrapper .grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
html.ai-page .wrapper .grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

html.ai-page .wrapper .gap-2 { gap: calc(var(--spacing) * 2); }
html.ai-page .wrapper .gap-3 { gap: calc(var(--spacing) * 3); }
html.ai-page .wrapper .gap-4 { gap: calc(var(--spacing) * 4); }
html.ai-page .wrapper .gap-12 { gap: calc(var(--spacing) * 12); }

html.ai-page .wrapper .px-4 {
    padding-left: calc(var(--spacing) * 4) !important;
    padding-right: calc(var(--spacing) * 4) !important;
}

html.ai-page .wrapper .py-16 {
    padding-top: calc(var(--spacing) * 16) !important;
    padding-bottom: calc(var(--spacing) * 16) !important;
}

html.ai-page .wrapper .py-20 {
    padding-top: calc(var(--spacing) * 20) !important;
    padding-bottom: calc(var(--spacing) * 20) !important;
}

html.ai-page .wrapper .pt-2 { padding-top: calc(var(--spacing) * 2) !important; }
html.ai-page .wrapper .p-4 { padding: calc(var(--spacing) * 4) !important; }

html.ai-page .wrapper .mb-1 { margin-bottom: calc(var(--spacing) * 1) !important; }
html.ai-page .wrapper .mb-4 { margin-bottom: calc(var(--spacing) * 4) !important; }
html.ai-page .wrapper .mb-6 { margin-bottom: calc(var(--spacing) * 6) !important; }
html.ai-page .wrapper .mb-8 { margin-bottom: calc(var(--spacing) * 8) !important; }
html.ai-page .wrapper .mt-4 { margin-top: calc(var(--spacing) * 4) !important; }

html.ai-page .wrapper .w-8 { width: calc(var(--spacing) * 8); }
html.ai-page .wrapper .h-8 { height: calc(var(--spacing) * 8); }
html.ai-page .wrapper .w-16 { width: calc(var(--spacing) * 16) !important; }
html.ai-page .wrapper .h-1 { height: calc(var(--spacing) * 1) !important; }
html.ai-page .wrapper .h-16 { height: calc(var(--spacing) * 16); }

html.ai-page .wrapper .rounded-full { border-radius: 9999px; }
html.ai-page .wrapper .rounded-xl { border-radius: 0.75rem; }
html.ai-page .wrapper .rounded-2xl { border-radius: 1rem; }

html.ai-page .wrapper .border { border-width: 1px; border-style: solid; }
html.ai-page .wrapper .border-white { border-color: #fff; }
html.ai-page .wrapper .border-blue-50 { border-color: #eff6ff; }

html.ai-page .wrapper .bg-white { background-color: var(--color-white); }
html.ai-page .wrapper .bg-blue-50 { background-color: #eff6ff; }
html.ai-page .wrapper .bg-blue-600 { background-color: #2563eb; }
html.ai-page .wrapper .bg-\[\#000b1d\] { background-color: #000b1d; }
html.ai-page .wrapper .bg-gray-50\/50 { background-color: rgba(249, 250, 251, 0.5); }

html.ai-page .wrapper .bg-gradient-to-t {
    background-image: linear-gradient(to top, var(--tw-gradient-stops, #fff, transparent));
}

html.ai-page .wrapper .from-white { --tw-gradient-from: #fff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent); }
html.ai-page .wrapper .to-transparent { --tw-gradient-to: transparent; }

html.ai-page .wrapper .text-white { color: #fff; }
html.ai-page .wrapper .text-gray-300 { color: #d1d5db; }
html.ai-page .wrapper .text-gray-400 { color: #9ca3af; }
html.ai-page .wrapper .text-gray-500 { color: #6b7280; }
html.ai-page .wrapper .text-gray-900 { color: var(--color-gray-900); }
html.ai-page .wrapper .text-blue-400 { color: #60a5fa; }
html.ai-page .wrapper .text-blue-600 { color: #2563eb; }

html.ai-page .wrapper .text-xs {
    font-size: var(--text-xs);
    line-height: var(--text-xs--line-height);
}

html.ai-page .wrapper .text-sm {
    font-size: var(--text-sm);
    line-height: var(--text-sm--line-height);
}

html.ai-page .wrapper .text-lg {
    font-size: var(--text-lg);
    line-height: var(--text-lg--line-height);
}

html.ai-page .wrapper .text-2xl {
    font-size: var(--text-2xl);
    line-height: var(--text-2xl--line-height);
}

html.ai-page .wrapper .text-3xl {
    font-size: var(--text-3xl);
    line-height: var(--text-3xl--line-height);
}

html.ai-page .wrapper .text-4xl {
    font-size: var(--text-4xl);
    line-height: var(--text-4xl--line-height);
}

html.ai-page .wrapper .text-6xl {
    font-size: var(--text-6xl);
    line-height: var(--text-6xl--line-height);
}

html.ai-page .wrapper .font-light { font-weight: var(--font-weight-light); }
html.ai-page .wrapper .font-medium { font-weight: var(--font-weight-medium); }
html.ai-page .wrapper .font-bold {
    font-weight: var(--font-weight-bold);
}

html.ai-page .wrapper .font-black { font-weight: 900; }

html.ai-page .wrapper .leading-none { line-height: var(--leading-none); }
html.ai-page .wrapper .leading-tight { line-height: var(--leading-tight); }
html.ai-page .wrapper .leading-relaxed { line-height: var(--leading-relaxed); }

html.ai-page .wrapper .tracking-tight { letter-spacing: -0.025em; }
html.ai-page .wrapper .tracking-widest { letter-spacing: 0.1em; }

html.ai-page .wrapper .shadow-sm {
    box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
}

html.ai-page .wrapper .shadow-xl {
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

html.ai-page .wrapper .shadow-2xl {
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

html.ai-page .wrapper .space-y-6 > :not(:last-child) {
    --tw-space-y-reverse: 0;
    margin-top: calc(calc(var(--spacing) * 6) * var(--tw-space-y-reverse)) !important;
    margin-bottom: calc(calc(var(--spacing) * 6) * calc(1 - var(--tw-space-y-reverse))) !important;
}

@media (min-width: 768px) {
    html.ai-page .wrapper .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    html.ai-page .wrapper .md\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    html.ai-page .wrapper .md\:py-20 {
        padding-top: calc(var(--spacing) * 20) !important;
        padding-bottom: calc(var(--spacing) * 20) !important;
    }

    html.ai-page .wrapper .md\:gap-6 {
        gap: calc(var(--spacing) * 6);
    }

    html.ai-page .wrapper .md\:text-3xl {
        font-size: var(--text-3xl);
        line-height: var(--text-3xl--line-height);
    }

    html.ai-page .wrapper .md\:text-4xl {
        font-size: var(--text-4xl);
        line-height: var(--text-4xl--line-height);
    }

    html.ai-page .wrapper .md\:text-5xl {
        font-size: var(--text-5xl);
        line-height: var(--text-5xl--line-height);
    }

    html.ai-page .wrapper .md\:text-7xl {
        font-size: var(--text-7xl);
        line-height: var(--text-7xl--line-height);
    }
}

@media (min-width: 1024px) {
    html.ai-page .wrapper .lg\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    html.ai-page .wrapper .lg\:gap-16 {
        gap: calc(var(--spacing) * 16);
    }

    html.ai-page .wrapper .lg\:order-1 {
        order: 1;
    }

    html.ai-page .wrapper .lg\:order-2 {
        order: 2;
    }
}

/* ── 页面背景与动效 ── */
html.ai-page .wrapper .tech-grid {
    background-image: radial-gradient(circle at 2px 2px, rgba(37, 99, 235, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
}

html.ai-page .wrapper .reveal {
    opacity: 1;
    transform: none;
}

html.ai-page.js .wrapper .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition-property: opacity, transform !important;
    transition-duration: 1s;
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

html.ai-page.js .wrapper .reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ── 案例页组件样式（源自 gpm-ai-cases） ── */
html.ai-page .wrapper .step-number {
    font-family: var(--font-display);
    font-weight: 700;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.35) 0%, rgba(6, 182, 212, 0.2) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

html.ai-page .wrapper .back-high {
    background: linear-gradient(161deg, #e0e9fc, #ffffff);
}

html.ai-page .wrapper .feature-item {
    position: relative;
    padding: 16px 20px 16px 24px;
    color: #374151;
    font-size: 1.05rem;
    line-height: 1.75;
    font-weight: 300;
    border-left: none;
    background: transparent;
}

html.ai-page .wrapper .feature-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(268deg, rgba(225, 175, 204, 0) 0%, rgb(190 207 234) 100%);
    border-radius: 0 8px 8px 0;
    transform: translateX(5px);
    z-index: -1;
}

html.ai-page .wrapper .feature-item::after {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 4px;
    background: linear-gradient(to bottom, #5279cf, #43a2d2);
    border-radius: 2px;
    transform: translateX(5px);
}

html.ai-page .wrapper .stat-card {
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    background: #fff;
    border: 1px solid #eff6ff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    text-align: center;
}

html.ai-page .wrapper .stat-card .value {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    line-height: 1.2;
}

html.ai-page .wrapper .stat-card .label {
    margin-top: 0.35rem;
    font-size: 0.75rem;
    color: #6b7280;
}

html.ai-page .wrapper .meta-row {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    background: #fff;
    border: 1px solid #eff6ff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

html.ai-page .wrapper .meta-row .dot {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    margin-top: 0.45rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #5279cf, #43a2d2);
}

html.ai-page .wrapper .meta-row .key {
    font-size: 0.8rem;
    font-weight: 600;
    color: #1f2937;
}

html.ai-page .wrapper .meta-row .val {
    font-size: 0.8rem;
    color: #6b7280;
    margin-top: 0.15rem;
}

html.ai-page .wrapper .system-screenshot {
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    filter: brightness(0.98) contrast(1.02);
}

html.ai-page .wrapper .system-screenshot:hover {
    transform: scale(1.04) translateY(-6px);
    filter: brightness(1.03);
    box-shadow: 0 24px 48px -12px rgba(37, 99, 235, 0.22);
}

html.ai-page .wrapper .cta-btn {
    height: 42px;
    padding: 0 22px 0 14px;
    background: linear-gradient(82deg, #5279cf 0%, #43a2d2 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(67, 162, 210, 0.35);
}

html.ai-page .wrapper .cta-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(67, 162, 210, 0.45);
}

html.ai-page .wrapper .tag-pill {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    color: #2563eb;
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

html.ai-page .wrapper .hero-slogan span {
    display: inline-block;
    margin: 0 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
}

html.ai-page .wrapper .bottom-cta {
    background: linear-gradient(135deg, #000b1d 0%, #0a2540 50%, #001a33 100%);
}

/* ── 悬浮咨询（若页面引入 #tools） ── */
html.ai-page #tools {
    position: fixed;
    right: 24px;
    bottom: 10%;
    z-index: 9999;
    font-size: 13px;
}

html.ai-page .tool-btn {
    width: 64px;
    height: 64px;
    padding: 10px 14px 8px;
    margin-bottom: 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
    user-select: none;
    position: relative;
}

html.ai-page .tool-btn img {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

html.ai-page .tool-btn .label {
    margin-top: 5px;
    font-size: 12px;
}

html.ai-page .tooltip-panel {
    display: none;
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    background: #fff;
    border-radius: 8px;
    padding: 14px 18px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
    color: #122943;
    font-size: 14px;
    line-height: 1.8;
    z-index: 10000;
}

html.ai-page .tooltip-panel::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: #fff;
    box-shadow: 2px -2px 4px rgba(0, 0, 0, 0.05);
}

html.ai-page .tool-btn.open .tooltip-panel {
    display: block;
}