/* ============================================
   AI智能体开发 - 服务详情页样式 (AI科技风格)
   ============================================ */

/* ========== AI Hero - 全屏沉浸式 ========== */
.ai-hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #0a0e1a;
}
.ai-hero-canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.ai-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,14,26,0.85) 0%, rgba(15,20,40,0.7) 50%, rgba(20,10,40,0.8) 100%);
    z-index: 1;
}
.ai-hero-content-wrap {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 120px 0 80px;
}
.ai-hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.ai-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 24px;
}
.ai-breadcrumb a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: color 0.3s;
}
.ai-breadcrumb a:hover { color: #fff; }
.ai-bc-sep { color: rgba(255,255,255,0.2); }
.ai-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    color: rgba(139,92,246,0.9);
    margin-bottom: 24px;
    padding: 8px 20px;
    border: 1px solid rgba(139,92,246,0.3);
    border-radius: 30px;
    background: rgba(139,92,246,0.08);
}
.ai-badge-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #8b5cf6;
    animation: aiPulse 2s ease-in-out infinite;
}
@keyframes aiPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(139,92,246,0.4); }
    50% { box-shadow: 0 0 0 8px rgba(139,92,246,0); }
}
.ai-hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}
.ai-title-gradient {
    background: linear-gradient(135deg, #8b5cf6, #06b6d4, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ai-hero-subtitle {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,0.6);
    margin-bottom: 36px;
}
.ai-hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.ai-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
}
.ai-cta-primary {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    color: #fff;
    box-shadow: 0 4px 20px rgba(139,92,246,0.3);
}
.ai-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139,92,246,0.5);
}
.ai-cta-ghost {
    background: rgba(255,255,255,0.06);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.15);
}
.ai-cta-ghost:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.3);
}
.ai-cta-white {
    background: #fff;
    color: #6366f1;
}
.ai-cta-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255,255,255,0.2);
}
.ai-cta-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}
.ai-cta-outline:hover {
    background: rgba(255,255,255,0.1);
}
.ai-hero-scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.3);
    font-size: 12px;
    animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* AI Terminal */
.ai-terminal {
    background: rgba(15,20,40,0.9);
    border: 1px solid rgba(139,92,246,0.25);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 60px rgba(139,92,246,0.08);
}
.ai-term-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: rgba(0,0,0,0.4);
    border-bottom: 1px solid rgba(139,92,246,0.15);
}
.ai-term-dots { display: flex; gap: 6px; }
.ai-term-dots span {
    width: 10px; height: 10px; border-radius: 50%;
}
.ai-term-dots span:nth-child(1) { background: #ef4444; }
.ai-term-dots span:nth-child(2) { background: #eab308; }
.ai-term-dots span:nth-child(3) { background: #22c55e; }
.ai-term-label {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
    font-family: 'SF Mono', 'Consolas', monospace;
}
.ai-term-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-height: 300px;
}
.ai-msg { display: flex; gap: 12px; align-items: flex-start; }
.ai-msg-user { flex-direction: row-reverse; }
.ai-msg-avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: rgba(139,92,246,0.25);
    color: #a78bfa;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.ai-av { background: rgba(6,182,212,0.25); color: #22d3ee; }
.ai-msg-bubble {
    max-width: 78%;
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.7;
}
.ai-msg-user .ai-msg-bubble {
    background: rgba(139,92,246,0.15);
    color: rgba(255,255,255,0.9);
    border-top-right-radius: 4px;
}
.ai-msg-ai .ai-msg-bubble {
    background: rgba(255,255,255,0.04);
    color: rgba(255,255,255,0.8);
    border-top-left-radius: 4px;
    border: 1px solid rgba(255,255,255,0.06);
}
.ai-status {
    color: rgba(255,255,255,0.4);
    font-size: 12px;
    font-style: italic;
    margin-bottom: 10px;
}
.ai-steps {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 10px;
}
.ai-step {
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    padding-left: 18px;
    position: relative;
}
.ai-step::before {
    content: '○';
    position: absolute;
    left: 0;
    font-size: 10px;
}
.ai-step.done { color: rgba(34,211,238,0.6); }
.ai-step.done::before { content: '●'; color: #22d3ee; }
.ai-step.active { color: #22d3ee; font-weight: 600; }
.ai-step.active::before { content: '◉'; color: #22d3ee; }
.ai-result-card {
    margin-top: 12px;
    padding: 14px;
    background: rgba(139,92,246,0.08);
    border: 1px solid rgba(139,92,246,0.2);
    border-radius: 10px;
}
.ai-res-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.ai-res-row:last-child { border-bottom: none; }
.ai-res-val { color: #a78bfa; font-weight: 600; }
.ai-res-highlight .ai-res-val { color: #22d3ee; font-weight: 700; }

/* ========== 数据指标条 ========== */
.ai-metrics-bar {
    background: linear-gradient(135deg, #0f1325, #1a1040);
    border-top: 1px solid rgba(139,92,246,0.15);
    border-bottom: 1px solid rgba(139,92,246,0.15);
    padding: 40px 0;
}
.ai-metrics-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}
.ai-metric {
    text-align: center;
    flex: 1;
}
.ai-metric-num {
    font-size: 42px;
    font-weight: 900;
    background: linear-gradient(135deg, #8b5cf6, #22d3ee);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    display: inline;
}
.ai-metric-suffix {
    font-size: 24px;
    font-weight: 700;
    color: #8b5cf6;
    display: inline;
}
.ai-metric-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-top: 8px;
}
.ai-metric-divider {
    width: 1px;
    height: 40px;
    background: rgba(139,92,246,0.2);
    margin: 0 20px;
}

/* ========== 通用 Section ========== */
.ai-section-head {
    text-align: center;
    margin-bottom: 50px;
}
.ai-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #8b5cf6;
    margin-bottom: 14px;
    padding: 4px 16px;
    border: 1px solid rgba(139,92,246,0.2);
    border-radius: 20px;
    background: rgba(139,92,246,0.06);
}
.ai-heading {
    font-size: 36px;
    font-weight: 900;
    color: #1a1a2e;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}
.ai-heading span {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ai-subheading {
    font-size: 15px;
    color: #6b7280;
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ========== Bento Grid 能力矩阵 ========== */
.ai-bento-section {
    padding: 90px 0;
    background: #f8f9fc;
}
.ai-bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 20px;
}
.ai-bento-card {
    background: #fff;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid #eef0f6;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.ai-bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
    opacity: 0;
    transition: opacity 0.3s;
}
.ai-bento-card:hover::before { opacity: 1; }
.ai-bento-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.06);
}
.ai-bento--purple::before { background: linear-gradient(90deg, #8b5cf6, #a78bfa); }
.ai-bento--blue::before { background: linear-gradient(90deg, #3b82f6, #60a5fa); }
.ai-bento--cyan::before { background: linear-gradient(90deg, #06b6d4, #22d3ee); }
.ai-bento--green::before { background: linear-gradient(90deg, #10b981, #34d399); }
.ai-bento--orange::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); }
.ai-bento--red::before { background: linear-gradient(90deg, #ef4444, #f87171); }
.ai-bento-lg {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(139,92,246,0.04), rgba(99,102,241,0.04));
    border-color: rgba(139,92,246,0.12);
}
.ai-bento-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}
.ai-bento--purple .ai-bento-icon { background: rgba(139,92,246,0.1); color: #8b5cf6; }
.ai-bento--blue .ai-bento-icon { background: rgba(59,130,246,0.1); color: #3b82f6; }
.ai-bento--cyan .ai-bento-icon { background: rgba(6,182,212,0.1); color: #06b6d4; }
.ai-bento--green .ai-bento-icon { background: rgba(16,185,129,0.1); color: #10b981; }
.ai-bento--orange .ai-bento-icon { background: rgba(245,158,11,0.1); color: #f59e0b; }
.ai-bento--red .ai-bento-icon { background: rgba(239,68,68,0.1); color: #ef4444; }
.ai-bento-card h3 {
    font-size: 18px;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 10px;
}
.ai-bento-card > p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 16px;
}
.ai-bento-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.ai-bento-features span {
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(139,92,246,0.06);
    color: #7c3aed;
    font-weight: 500;
}
.ai-bento-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.ai-bento-card ul li {
    font-size: 13px;
    color: #6b7280;
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
}
.ai-bento-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #8b5cf6;
}

/* ========== 技术生态 - 横向滚动 ========== */
.ai-tech-section {
    padding: 90px 0 60px;
    background: #fff;
}
.ai-tech-scroll-wrap {
    overflow: hidden;
    padding: 0 0 20px;
}
.ai-tech-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.ai-tech-scroll::-webkit-scrollbar { display: none; }
.ai-tech-track {
    display: flex;
    gap: 24px;
    padding: 0 5%;
    min-width: max-content;
}
.ai-tech-group {
    min-width: 280px;
    background: #f8f9fc;
    border-radius: 16px;
    padding: 24px;
    border: 1px solid #eef0f6;
}
.ai-tech-group h4 {
    font-size: 14px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 16px;
}
.ai-tech-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.ai-chip {
    padding: 8px 16px;
    border-radius: 20px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    transition: transform 0.3s;
    cursor: default;
}
.ai-chip:hover { transform: translateY(-2px) scale(1.05); }

/* ========== AI大模型全景 ========== */
.ai-llm-section {
    padding: 90px 0;
    background: #fff;
}
.ai-llm-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.ai-llm-group {
    background: #f8f9fc;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid #eef0f6;
}
.ai-llm-group-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px;
    padding-bottom: 16px;
    border-bottom: 1px solid #eef0f6;
}
.ai-llm-group-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ai-llm-icon--global { background: rgba(59,130,246,0.1); color: #3b82f6; }
.ai-llm-icon--cn { background: rgba(239,68,68,0.1); color: #ef4444; }
.ai-llm-icon--open { background: rgba(16,185,129,0.1); color: #10b981; }
.ai-llm-group-header h3 {
    font-size: 16px;
    font-weight: 800;
    color: #1a1a2e;
}
.ai-llm-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.ai-llm-card {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid #eef0f6;
    transition: all 0.3s;
}
.ai-llm-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.05);
    border-color: rgba(139,92,246,0.15);
}
.ai-llm-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}
.ai-llm-info { flex: 1; min-width: 0; }
.ai-llm-info h4 {
    font-size: 14px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 4px;
}
.ai-llm-info p {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 8px;
}
.ai-llm-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ai-llm-tags span {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 8px;
    background: rgba(139,92,246,0.06);
    color: #7c3aed;
    font-weight: 600;
}

/* ========== 企业AI应用开发方式 ========== */
.ai-approach-section {
    padding: 90px 0;
    background: #f8f9fc;
}
.ai-approach-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.ai-approach-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    border: 1px solid #eef0f6;
    position: relative;
    transition: all 0.3s;
}
.ai-approach-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}
.ai-approach--featured {
    border-color: rgba(139,92,246,0.25);
    background: linear-gradient(135deg, rgba(139,92,246,0.02), rgba(99,102,241,0.02));
}
.ai-approach--featured:hover {
    border-color: rgba(139,92,246,0.4);
    box-shadow: 0 12px 32px rgba(139,92,246,0.1);
}
.ai-approach-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(139,92,246,0.08);
    color: #8b5cf6;
}
.ai-badge--hot {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    color: #fff;
}
.ai-approach-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(139,92,246,0.08);
    color: #8b5cf6;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.ai-approach-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 10px;
}
.ai-approach-desc {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 22px;
}
.ai-approach-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}
.ai-approach-detail {
    display: flex;
    gap: 12px;
    align-items: baseline;
    font-size: 13px;
}
.ai-detail-label {
    font-size: 12px;
    font-weight: 700;
    color: #8b5cf6;
    min-width: 64px;
    flex-shrink: 0;
}
.ai-approach-detail span:last-child {
    color: #4b5563;
    line-height: 1.5;
}
.ai-approach-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 16px;
    border-top: 1px solid #f3f4f6;
}
.ai-approach-tech span {
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 16px;
    background: #f3f4f6;
    color: #6b7280;
    font-weight: 600;
}

/* ========== 行业AI应用全景 ========== */
.ai-industry-section {
    padding: 90px 0;
    background: #fff;
}
.ai-industry-panorama {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.ai-ind-panel {
    background: #f8f9fc;
    border-radius: 16px;
    padding: 28px;
    border: 1px solid #eef0f6;
    transition: all 0.3s;
}
.ai-ind-panel:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}
.ai-ind-panel--lg {
    grid-column: span 2;
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(139,92,246,0.03), rgba(99,102,241,0.03));
    border-color: rgba(139,92,246,0.15);
}
.ai-ind-panel-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}
.ai-ind-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ai-ind-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: #8b5cf6;
    background: rgba(139,92,246,0.08);
    padding: 2px 10px;
    border-radius: 10px;
    margin-bottom: 4px;
}
.ai-ind-panel-header h3 {
    font-size: 17px;
    font-weight: 800;
    color: #1a1a2e;
}
.ai-ind-desc {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 20px;
}
.ai-ind-apps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
.ai-ind-apps--compact {
    grid-template-columns: 1fr;
    gap: 10px;
}
.ai-ind-app {
    background: #fff;
    border-radius: 10px;
    padding: 14px;
    border: 1px solid #eef0f6;
}
.ai-ind-app h5 {
    font-size: 13px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 4px;
}
.ai-ind-app p {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
}
.ai-ind-stats {
    display: flex;
    gap: 32px;
    padding-top: 20px;
    border-top: 1px solid #eef0f6;
}
.ai-ind-stat { text-align: center; }
.ai-ind-stat-val {
    font-size: 28px;
    font-weight: 900;
    color: #8b5cf6;
    line-height: 1;
}
.ai-ind-stat-label {
    font-size: 12px;
    color: #9ca3af;
    margin-top: 6px;
}

/* ========== 开发流程 - 时间轴 ========== */
.ai-timeline-section {
    padding: 90px 0;
    background: #fff;
}
.ai-timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}
.ai-timeline-line {
    position: absolute;
    top: 36px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: linear-gradient(90deg, #8b5cf6, #06b6d4, #3b82f6);
    z-index: 0;
}
.ai-timeline-item {
    position: relative;
    z-index: 1;
    text-align: center;
}
.ai-tl-dot {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #8b5cf6;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    position: relative;
    z-index: 2;
}
.ai-tl-dot span {
    font-size: 12px;
    font-weight: 800;
    color: #8b5cf6;
}
.ai-tl-card {
    background: #f8f9fc;
    border-radius: 12px;
    padding: 20px 14px;
    border: 1px solid #eef0f6;
    transition: all 0.3s;
}
.ai-tl-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    border-color: rgba(139,92,246,0.2);
}
.ai-tl-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(139,92,246,0.08);
    color: #8b5cf6;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}
.ai-tl-card h4 {
    font-size: 14px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 6px;
}
.ai-tl-card p {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.5;
}

/* ========== 案例 ========== */
.ai-cases-section {
    padding: 90px 0;
    background: #f8f9fc;
}
.ai-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.ai-case-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid #eef0f6;
    transition: all 0.3s;
}
.ai-case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}
.ai-case-img {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #f1f5f9;
}
.ai-case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.ai-case-card:hover .ai-case-img img { transform: scale(1.05); }
.ai-case-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    background: rgba(139,92,246,0.85);
    padding: 3px 12px;
    border-radius: 12px;
}
.ai-case-body { padding: 18px; }
.ai-case-body h4 {
    font-size: 15px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 6px;
}
.ai-case-body p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 12px;
}
.ai-case-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.ai-case-tags span {
    font-size: 11px;
    color: #7c3aed;
    background: rgba(139,92,246,0.06);
    padding: 3px 10px;
    border-radius: 10px;
}
.ai-more-wrap { text-align: center; margin-top: 40px; }
.ai-more-btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 32px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: #8b5cf6;
    background: rgba(139,92,246,0.06);
    text-decoration: none;
    transition: all 0.3s;
}
.ai-more-btn:hover {
    background: rgba(139,92,246,0.12);
    transform: translateY(-2px);
}

/* ========== 为什么选择 ========== */
.ai-why-section {
    padding: 90px 0;
    background: #fff;
}
.ai-why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.ai-why-card {
    background: #f8f9fc;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid #eef0f6;
    transition: all 0.3s;
    position: relative;
}
.ai-why-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.06);
    border-color: rgba(139,92,246,0.2);
}
.ai-why-num {
    font-size: 11px;
    font-weight: 800;
    color: #8b5cf6;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.ai-why-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(139,92,246,0.08);
    color: #8b5cf6;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}
.ai-why-card h3 {
    font-size: 17px;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 10px;
}
.ai-why-card p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.7;
}

/* ========== CTA ========== */
.ai-cta-section {
    position: relative;
    padding: 90px 0;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    text-align: center;
    overflow: hidden;
}
.ai-cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
}
.ai-cta-inner {
    position: relative;
    z-index: 1;
}
.ai-cta-inner h2 {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.ai-cta-inner p {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: 36px;
}
.ai-cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .ai-hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .ai-hero-title { font-size: 40px; }
    .ai-llm-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-llm-grid .ai-llm-group:last-child { grid-column: span 2; }
    .ai-approach-grid { grid-template-columns: 1fr; }
    .ai-industry-panorama { grid-template-columns: repeat(2, 1fr); }
    .ai-ind-panel--lg { grid-column: span 2; grid-row: span 1; }
    .ai-ind-apps { grid-template-columns: 1fr; }
    .ai-bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .ai-bento-lg { grid-column: span 2; }
    .ai-timeline {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .ai-timeline-line { display: none; }
    .ai-cases-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-why-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .ai-hero-section { min-height: auto; }
    .ai-hero-content-wrap { padding: 100px 0 60px; }
    .ai-hero-title { font-size: 32px; }
    .ai-hero-subtitle { font-size: 14px; }
    .ai-hero-cta { flex-direction: column; }
    .ai-cta-btn { justify-content: center; }
    .ai-metrics-grid { flex-wrap: wrap; gap: 20px; }
    .ai-metric { min-width: 40%; }
    .ai-metric-divider { display: none; }
    .ai-metric-num { font-size: 32px; }
    .ai-heading { font-size: 28px; }
    .ai-llm-grid { grid-template-columns: 1fr; }
    .ai-llm-grid .ai-llm-group:last-child { grid-column: span 1; }
    .ai-approach-grid { grid-template-columns: 1fr; }
    .ai-industry-panorama { grid-template-columns: 1fr; }
    .ai-ind-panel--lg { grid-column: span 1; }
    .ai-ind-stats { flex-wrap: wrap; gap: 20px; }
    .ai-bento-grid { grid-template-columns: 1fr; }
    .ai-bento-lg { grid-column: span 1; }
    .ai-timeline { grid-template-columns: repeat(2, 1fr); }
    .ai-cases-grid { grid-template-columns: 1fr; }
    .ai-why-grid { grid-template-columns: 1fr; }
    .ai-cta-inner h2 { font-size: 28px; }
    .ai-cta-inner p { font-size: 15px; }
    .ai-cta-btns { flex-direction: column; align-items: center; }
    .ai-hero-scroll-hint { display: none; }
}