*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

html {
    font-size: 16px;
    scroll-behavior: smooth
}

body {
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    color: #333;
    background: #f8fafc;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased
}

a {
    color: #007bff;
    text-decoration: none;
    transition: color .2s
}

    a:hover {
        color: #0056b3
    }

.site-header {
    background: #fff;
    border-bottom: 3px solid #07913a;
    box-shadow: 0 2px 8px rgba(0,0,0,.06)
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #07913a
}

    .logo-link .logo-text {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 1px
    }

    .logo-link .logo-sub {
        font-size: 12px;
        color: #666;
        display: block
    }

.header-phone {
    font-size: 18px;
    font-weight: 700;
    color: #07913a;
    letter-spacing: 1px
}

    .header-phone a {
        color: inherit;
        text-decoration: none
    }

.site-nav {
    background: #07913a
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap
}

    .nav-inner a {
        color: #fff;
        padding: 12px 18px;
        font-size: 15px;
        display: block;
        transition: background .2s;
        white-space: nowrap
    }

        .nav-inner a:hover, .nav-inner a.active {
            background: rgba(255,255,255,.15)
        }

.nav-mobile-toggle {
    display: none;
    color: #fff;
    padding: 12px 16px;
    font-size: 20px;
    cursor: pointer
}

.page-banner {
    background: linear-gradient(135deg,#07913a 0%,#0a6e2e 100%);
    color: #fff;
    padding: 120px 20px;
    text-align: center;
    position: relative;
    overflow: hidden
}

    .page-banner::after {
        content: '';
        position: absolute;
        top: -50%;
        right: -10%;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(255,255,255,.05);
        pointer-events: none
    }

    .page-banner h1 {
        font-size: 32px;
        font-weight: 700;
        margin-bottom: 10px
    }

    .page-banner p {
        font-size: 16px;
        opacity: .9;
        max-width: 700px;
        margin: 0 auto
    }

.breadcrumb {
    font-size: 13px;
    margin-bottom: 8px;
    opacity: .8
}

    .breadcrumb a {
        color: rgba(255,255,255,.9)
    }

.main-content {
    max-width: 960px;
    margin: 0 auto;
    padding: 30px 15px 60px
}

.faq-intro {
    background: #f0f9f0;
    border-radius: 10px;
    padding: 22px 24px;
    margin-bottom: 24px;
    line-height: 1.8;
    color: #444;
    border-left: 4px solid #07913a
}

    .faq-intro strong {
        color: #07913a
    }

.faq-meta {
    font-size: 13px;
    color: #999;
    padding: 10px 14px;
    background: #f9f9f9;
    border-radius: 6px;
    margin-bottom: 28px;
    line-height: 1.7
}

.faq-item {
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
    transition: box-shadow .3s,border-color .3s
}

    .faq-item:hover {
        box-shadow: 0 2px 12px rgba(0,0,0,.06);
        border-color: #d0d0d0
    }

.faq-question {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    background: #fff;
    transition: background .2s;
    user-select: none
}

    .faq-question:hover {
        background: #fafafa
    }

    .faq-question .q-num {
        flex-shrink: 0;
        padding: 2px 10px;
        background: #07913a;
        color: #fff;
        border-radius: 14px;
        font-size: 12px;
        font-weight: 700;
        white-space: nowrap;
        margin-top: 2px
    }

    .faq-question .q-text {
        flex: 1
    }

    .faq-question .q-arrow {
        margin-left: auto;
        flex-shrink: 0;
        transition: transform .3s;
        color: #999;
        font-size: 11px;
        margin-top: 6px
    }

.faq-item.active .faq-question {
    color: #07913a;
    background: #f8fdf8
}

    .faq-item.active .faq-question .q-num {
        background: #057830
    }

    .faq-item.active .faq-question .q-arrow {
        transform: rotate(180deg);
        color: #07913a
    }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px 0 58px;
    line-height: 1.8;
    color: #555;
    font-size: 14px;
    transition: max-height .4s ease,padding .3s ease
}

.faq-item.active .faq-answer {
    max-height: 800px;
    padding: 0 20px 20px 58px
}

.faq-cta {
    text-align: center;
    padding: 36px 20px;
    margin-top: 30px;
    background: linear-gradient(135deg,#07913a,#057830);
    border-radius: 14px;
    color: #fff
}

    .faq-cta h3 {
        font-size: 22px;
        margin-bottom: 8px
    }

    .faq-cta p {
        font-size: 15px;
        margin-bottom: 16px;
        opacity: .9
    }

    .faq-cta .phone {
        font-size: 30px;
        font-weight: 700;
        letter-spacing: 2px
    }

        .faq-cta .phone a {
            color: #fff;
            text-decoration: none
        }

    .faq-cta .cta-sub {
        font-size: 13px;
        margin-top: 12px;
        opacity: .7
    }

.site-footer {
    background: #1a2a1a;
    color: rgba(255,255,255,.7);
    padding: 36px 20px 20px
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(180px,1fr));
    gap: 24px
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 12px;
    font-weight: 600
}

.footer-col a {
    color: rgba(255,255,255,.6);
    font-size: 13px;
    display: block;
    padding: 3px 0;
    transition: color .2s
}

    .footer-col a:hover {
        color: #fff
    }

.footer-col .contact-item {
    font-size: 13px;
    padding: 3px 0;
    display: flex;
    align-items: center;
    gap: 6px
}

.footer-bottom {
    max-width: 1200px;
    margin: 20px auto 0;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,.1);
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,.4)
}

.back-top {
    position: fixed;
    right: 20px;
    bottom: 30px;
    width: 44px;
    height: 44px;
    background: #07913a;
    color: #fff;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
    font-size: 18px;
    z-index: 999;
    transition: opacity .3s
}

    .back-top.show {
        display: flex
    }

@media(max-width:768px) {
    .header-inner {
        padding: 10px 15px
    }

    .logo-link .logo-text {
        font-size: 17px
    }

    .header-phone {
        font-size: 15px
    }

    .nav-inner a {
        padding: 10px 12px;
        font-size: 14px
    }

    .nav-mobile-toggle {
        display: block
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%
    }

        .nav-links.open {
            display: flex
        }

        .nav-links a {
            border-top: 1px solid rgba(255,255,255,.1)
        }

    .page-banner {
        padding: 32px 15px
    }

        .page-banner h1 {
            font-size: 24px
        }

    .main-content {
        padding: 20px 12px 40px
    }

    .faq-question {
        font-size: 14px;
        padding: 14px 15px;
        gap: 10px
    }

    .faq-answer {
        padding-left: 49px;
        font-size: 13px
    }

    .faq-item.active .faq-answer {
        padding: 0 15px 16px 49px
    }

    .faq-cta .phone {
        font-size: 24px
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr
    }
}

@media(max-width:480px) {
    .footer-inner {
        grid-template-columns: 1fr
    }

    .faq-question {
        padding: 12px
    }

    .faq-answer {
        padding-left: 42px
    }

    .faq-item.active .faq-answer {
        padding: 0 12px 14px 42px
    }
}