/* ===== 首页自定义样式（独立实现，不依赖外部 CSS 框架）===== */
    .hp-page {
        background: #fff;
        color: #1D2129;
        font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        overflow-x: hidden;
    }
    .hp-container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .hp-section-head {
        text-align: center;
        margin-bottom: 48px;
    }
    .hp-section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        color: #165DFF;
        background: rgba(22, 93, 255, .08);
        padding: 4px 14px;
        border-radius: 999px;
        margin-bottom: 12px;
        letter-spacing: 1px;
    }
    .hp-section-title {
        font-size: 30px;
        font-weight: 700;
        margin: 0 0 12px;
        color: #1D2129;
    }
    .hp-section-sub {
        font-size: 15px;
        color: #86909C;
        margin: 0;
        line-height: 1.6;
    }
    @media (max-width: 768px) {
        .hp-section-title { font-size: 24px; }
        .hp-section-head { margin-bottom: 32px; }
    }

    /* ===== 顶部 AI 宣传区 ===== */
    .hp-hero {
        position: relative;
        background: linear-gradient(135deg, #165DFF 0%, #36CFC9 100%);
        color: #fff;
        padding: 88px 0 120px;
        text-align: center;
        overflow: hidden;
    }
    .hp-hero-deco {
        position: absolute;
        border-radius: 50%;
        background: rgba(255, 255, 255, .08);
        pointer-events: none;
    }
    .hp-hero-deco-1 { width: 420px; height: 420px; top: -160px; right: -120px; }
    .hp-hero-deco-2 { width: 300px; height: 300px; bottom: -120px; left: -100px; }
    .hp-hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        background: rgba(255, 255, 255, .16);
        border: 1px solid rgba(255, 255, 255, .35);
        border-radius: 999px;
        padding: 6px 16px;
        margin-bottom: 24px;
    }
    .hp-badge-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #36CFC9;
        box-shadow: 0 0 0 3px rgba(54, 207, 201, .35);
        animation: hp-pulse 1.6s infinite;
    }
    @keyframes hp-pulse {
        0%, 100% { box-shadow: 0 0 0 3px rgba(54, 207, 201, .35); }
        50% { box-shadow: 0 0 0 7px rgba(54, 207, 201, .12); }
    }
    .hp-hero-title {
        font-size: clamp(2rem, 5vw, 3.4rem);
        font-weight: 700;
        line-height: 1.25;
        margin: 0 0 16px;
        text-shadow: 0 2px 6px rgba(0, 0, 0, .12);
    }
    .hp-gradient-text {
        background: linear-gradient(135deg, #fff 0%, #D8F5F2 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }
    .hp-hero-sub {
        max-width: 640px;
        margin: 0 auto 36px;
        font-size: 17px;
        line-height: 1.7;
        opacity: .92;
    }
    .hp-hero-actions {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
    }
    .hp-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        padding: 13px 30px;
        border-radius: 10px;
        font-size: 16px;
        font-weight: 600;
        text-decoration: none;
        transition: all .25s ease;
        border: 2px solid transparent;
        cursor: pointer;
    }
    .hp-btn-solid {
        background: #fff;
        color: #165DFF;
    }
    .hp-btn-solid:hover { background: #F2F3F5; color: #165DFF; }
    .hp-btn-ghost {
        background: transparent;
        color: #fff;
        border-color: rgba(255, 255, 255, .85);
    }
    .hp-btn-ghost:hover { background: rgba(255, 255, 255, .14); }
    .hp-btn-white {
        background: #fff;
        color: #165DFF;
        font-size: 18px;
        padding: 15px 40px;
    }
    .hp-btn-white:hover { background: #F2F3F5; }

    /* 对话演示卡片 */
    .hp-chat-demo { position: relative; z-index: 2; margin-top: 64px; }
    .hp-chat-demo-window {
        max-width: 720px;
        margin: 0 auto;
        background: #fff;
        border-radius: 16px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, .22);
        text-align: left;
        overflow: hidden;
    }
    .hp-chat-demo-head {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 14px 20px;
        background: #F7F8FA;
        border-bottom: 1px solid #EEF0F3;
    }
    .hp-chat-demo-dot { width: 10px; height: 10px; border-radius: 50%; }
    .hp-chat-demo-dot:nth-child(1) { background: #FF5F57; }
    .hp-chat-demo-dot:nth-child(2) { background: #FEBC2E; }
    .hp-chat-demo-dot:nth-child(3) { background: #28C840; }
    .hp-chat-demo-title {
        margin-left: 8px;
        font-size: 13px;
        color: #4E5969;
    }
    .hp-chat-demo-body {
        padding: 24px;
        display: flex;
        flex-direction: column;
        gap: 16px;
        background: #fff;
    }
    .hp-msg {
        max-width: 85%;
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 14px;
        line-height: 1.65;
        color: #1D2129;
    }
    .hp-msg-user {
        align-self: flex-end;
        background: #165DFF;
        color: #fff;
        border-bottom-right-radius: 4px;
    }
    .hp-msg-ai {
        align-self: flex-start;
        background: #F2F3F5;
        border-bottom-left-radius: 4px;
    }
    .hp-msg-ai-name {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 600;
        color: #165DFF;
        margin-bottom: 6px;
    }

    /* ===== AI 能力卡片区 ===== */
    .hp-ai { padding: 80px 0; }
    .hp-ai-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .hp-ai-card {
        position: relative;
        background: #fff;
        border: 1px solid #EEF0F3;
        border-radius: 16px;
        padding: 32px 28px;
        box-shadow: 0 2px 12px rgba(31, 35, 41, .04);
        transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        display: flex;
        flex-direction: column;
    }
    .hp-ai-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 16px 40px rgba(31, 35, 41, .1);
        border-color: rgba(22, 93, 255, .25);
    }
    .hp-ai-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        margin-bottom: 20px;
    }
    .hp-ai-icon-blue { background: rgba(22, 93, 255, .1); color: #165DFF; }
    .hp-ai-icon-green { background: rgba(54, 207, 201, .12); color: #0FAEA9; }
    .hp-ai-icon-purple { background: rgba(114, 46, 209, .1); color: #722ED1; }
    .hp-ai-card h3 {
        font-size: 19px;
        font-weight: 700;
        margin: 0 0 12px;
        color: #1D2129;
    }
    .hp-ai-card p {
        font-size: 14px;
        color: #86909C;
        line-height: 1.7;
        margin: 0 0 20px;
        flex: 1;
    }
    .hp-ai-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: #165DFF;
        font-size: 14px;
        font-weight: 600;
        text-decoration: none;
    }
    .hp-ai-link:hover { text-decoration: underline; }
    .hp-ai-card-more {
        border-style: dashed;
        background: #FBFBFC;
    }
    .hp-ai-more-icon {
        width: 56px;
        height: 56px;
        border-radius: 14px;
        background: #F2F3F5;
        color: #86909C;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        margin-bottom: 20px;
    }
    .hp-ai-tag {
        display: inline-block;
        font-size: 12px;
        color: #86909C;
        background: #F2F3F5;
        padding: 4px 12px;
        border-radius: 999px;
    }

    /* ===== 通用区块 ===== */
    .hp-section { padding: 80px 0; }
    .hp-section-light { background: #F2F3F5; }
    .hp-section-tint { background: rgba(22, 93, 255, .05); }
    .hp-card-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
        max-width: 880px;
        margin: 0 auto;
    }
    .hp-card {
        background: #fff;
        border-radius: 16px;
        padding: 28px;
        box-shadow: 0 2px 12px rgba(31, 35, 41, .04);
    }
    .hp-card-tint { background: #F2F3F5; }
    .hp-card-hover {
        transition: transform .3s ease, box-shadow .3s ease;
    }
    .hp-card-hover:hover {
        transform: translateY(-4px);
        box-shadow: 0 14px 36px rgba(31, 35, 41, .1);
    }
    .hp-card-head {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-bottom: 16px;
    }
    .hp-card-icon {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        flex-shrink: 0;
    }
    .hp-card-icon-blue { background: rgba(22, 93, 255, .1); color: #165DFF; }
    .hp-card-icon-green { background: rgba(54, 207, 201, .12); color: #0FAEA9; }
    .hp-card h3 { font-size: 20px; font-weight: 700; margin: 0; color: #1D2129; }
    .hp-card p {
        font-size: 15px;
        color: #4E5969;
        line-height: 1.7;
        margin: 0 0 16px;
    }
    .hp-card-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: #165DFF;
        font-weight: 600;
        font-size: 15px;
        text-decoration: none;
    }
    .hp-card-link:hover { text-decoration: underline; }
    .hp-card-link-green { color: #0FAEA9; }

    /* ===== 平台优势 ===== */
    .hp-adv-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        max-width: 1000px;
        margin: 0 auto;
    }
    .hp-adv-item { text-align: center; }
    .hp-adv-icon {
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: rgba(22, 93, 255, .12);
        color: #165DFF;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 26px;
        margin: 0 auto 16px;
    }
    .hp-adv-item h3 { font-size: 18px; font-weight: 700; margin: 0 0 8px; color: #1D2129; }
    .hp-adv-item p { font-size: 14px; color: #86909C; margin: 0; line-height: 1.6; }

    /* ===== 底部号召区 ===== */
    .hp-cta {
        background: linear-gradient(135deg, #165DFF 0%, #36CFC9 100%);
        color: #fff;
        text-align: center;
        padding: 72px 0;
    }
    .hp-cta h2 { font-size: 30px; font-weight: 700; margin: 0 0 12px; }
    .hp-cta p { font-size: 16px; margin: 0 0 32px; opacity: .92; }
    @media (max-width: 768px) {
        .hp-cta h2 { font-size: 24px; }
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
        .hp-ai-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
        .hp-ai-grid { grid-template-columns: 1fr; }
        .hp-card-grid { grid-template-columns: 1fr; }
        .hp-adv-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
        .hp-hero { padding: 64px 0 96px; }
        .hp-ai, .hp-section { padding: 56px 0; }
        .hp-hero-sub { font-size: 15px; }
    }
    @media (max-width: 480px) {
        .hp-adv-grid { grid-template-columns: 1fr; }
    }