.container {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 80px;
}

.header {
    position: sticky;
    top: 0;
    z-index: 20;
    height: 64px;
    border-bottom: 1px solid rgba(0, 11, 23, .04);
    background-color: #fff;
}
.header .brand{ padding: 16px 0 0 0; }
.header .brand-link{ color: #333; }
.header .brand-link:hover{ color: #fd6f01; }

/* brand */
.brand{ padding: 24px 0 0 0; }
.brand-link{
    display: inline-flex;
    align-items: center;
    color: #fff;
    transition: all 0.3s ease;
}
.brand-link:hover{ color: #fff; opacity: 0.75; }
.brand-logo{ height: 32px;}
.brand-text{ font-weight: 600; font-size: 20px; padding-left: 12px; }
.brand-back{ width: 32px; height: 32px; opacity: 0.75; }
.brand-link--back{
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    padding: 16px;
}

/* jumbotron */
.jumbotron{
    position: relative;
    overflow: hidden;
    color: #fff;
    background-image: url("../image/banner.svg");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    border-radius: 0 0 120px 120px;
}
.jumbotron-cube{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    animation: bounce-down 2s linear infinite;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url("../image/cube.png");
    pointer-events: none;
}
@keyframes bounce-down {
    25% { transform: translateY(-4px); }
    100%,50% { transform: translateY(0); }
    75% {  transform: translateY(4px); }
}

.jumbotron-intro{ max-width: 62%; padding: 60px 0 100px 0; }
.jumbotron-title{
    font-size: 64px;
    line-height: 1.125;
    font-weight: 700;
    color: #fff;
    margin-bottom: 32px;
}
.jumbotron-feature li{
    display: flex;
    align-items: center;
    font-size: 18px;
    margin-bottom: 10px;
}
.jumbotron-feature .icon{
    width: 20px;
    height: 20px;
    margin-right: 10px;
}
.jumbotron-action{ padding-top: 48px;}
.jumbotron-btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 230px;
    height: 64px;
    padding: 0 48px;
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    color: #fff;
    cursor: pointer;
    border: 2px solid rgba(255,255,255,0.75);
    background-color: transparent;
    border-radius: 20px;
    transition: all 0.3s ease-in-out;
    margin-right: 32px;
}
.jumbotron-btn .icon{ width: 32px; height: 32px; margin-right: 12px; }
.jumbotron-btn:hover{
    color: #fff;
    background-color: rgba(255,255,255,0.2);
}

.section{
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}
.section p{ margin-bottom: 20px; font-size: 18px; color: #484848; font-weight: 400; }
.section-title{
    position: relative;
    font-size: 48px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 40px;
}
.section-title span{ position: relative; z-index: 3; }
.section-title::before{
    content: "";
    position: absolute;
    margin: 4px 0 0 -12px;
    width: 32px;
    height: 32px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url("../image/icon-cube.png");
    pointer-events: none;
}
.section-subtitle{
    margin: auto;
    max-width: 65%;
    text-align: center;
    font-size: 18px;
    color: #666;
}
.section-subtitle--small{ margin-top: -32px; margin-bottom: 44px; }

/* what-vpn */
.what-vpn{ background-image: linear-gradient(#fff, rgb(253,111,1,0.05)); }
.what-vpn-group{
    display: flex;
    gap: 64px;
    padding-top: 24px;
}
.what-vpn-item{
    flex: 1;
    position: relative;
    overflow: hidden;
    padding: 64px 64px 40px 64px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid #faf1e9;
    background-color: #fff;
    border-radius: 24px;
}
.what-vpn-item .img{ height: 320px; margin-bottom: 32px; }

/* features */
.features-item{ display: flex; align-items: center; margin-top: 48px; }
.features-item img{ width: 360px; flex-shrink: 0; }
.features-item .info{ padding: 0 80px;}
.features-item h5{ font-size: 32px; font-weight: 600; margin-bottom: 24px; }
.features-item h5::after{
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    margin: 4px 0 0 0;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url("../image/icon-cube.png");
    pointer-events: none;
    transform: rotateY(180deg);
}
.features-item p{ font-size: 18px; }
.features-item--reverse{ flex-direction: row-reverse; }
.features-divider--reverse{ transform: rotateX(-180deg); }
.features-divider{
    position: relative;
    height: 240px;
    display: flex;
    overflow: hidden;
    pointer-events: none;
    margin: -80px 0 -120px 0;
    opacity: 0.5;
}
.features-divider::before,
.features-divider::after{
    content: "";
    width: 50%;
    height: 50%;
}
.features-divider::before{
    margin-top: 119px;
    border-left: 1px dashed #fd6f01;
    border-top: 1px dashed #fd6f01;
    border-radius: 100% 0 0 10%;
}
.features-divider::after{
    border-right: 1px dashed #fd6f01;
    border-bottom: 1px dashed #fd6f01;
    border-radius: 0 10% 100% 0;
}

/* section-support */
.section-support{
    padding: 80px 0;
    color: #fff;
    text-align: center;
    background: linear-gradient(135deg, #fd7307, #ff9225);
}
.section-support p { color: #fff; margin: 0;}
.section-support::before,
.section-support::after{
    content: "";
    position: absolute;
    opacity: 0.5;
    width: 60%;
    height: 120%;
    border-radius: 50%;
}
.section-support::before{
    top: -40%;
    left: -35%;
    background: linear-gradient(135deg, #fd7307, #ff9225);
}
.section-support::after{
    right: -40%;
    bottom: -35%;
    background: linear-gradient(135deg, #fd7307, #ff9225);
}

/* protect */
.protect{
    position: relative;
    display: flex;
    align-items: center;
    margin-top: 48px;
}
.protect-info{
    flex-shrink: 0;
    width: 40%;
    position: relative;
    padding: 32px 36px 12px 36px;
    border: 10px solid #fff8f3;
    border-right: 0;
    border-radius: 24px 0 0 24px;
}
.protect-info__title{ font-size: 16px; margin-bottom: 4px; }
.protect-info p{ display: flex; color: #fd6f01; font-weight: 600; line-height: 1.2; word-break: break-all; }
.protect-info p::before{
    content: "";
    width: 20px;
    height: 20px;
    margin-top: -1px;
    margin-right: 8px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-image: url("../image/warn.svg");
    pointer-events: none;
}
.protect-info .protect-info__desc--safe{ color: #00d500; }
.protect-info .protect-info__desc--safe::before{
    background-image: url("../image/check.svg");
}
.protect-step{
    flex-shrink: 0;
    width: 60%;
    position: relative;
    padding: 40px;
    background-color: #fff8f3;
    border-radius: 24px;
}
.protect-step__title{
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}
.protect-step p{ font-size: 16px; margin-bottom: 24px; }
.protect-step li{
    position: relative;
    display: flex;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}
.protect-step li.line::before{
    content: "";
    position: absolute;
    top: -14px;
    left: 16px;
    height: 12px;
    border-left: 1px solid #fd6f01;
    opacity: 0.3;
}
.protect-step .num{
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 500;
    width: 32px;
    height: 32px;
    margin-right: 16px;
    color: #fd6f01;
    border: 1px solid #fd6f01;
    border-radius: 50%;
}
.protect-step .num--primary{
    color: #fff;
    background-color: #fd6f01;
}
.protect-step__action{ padding-top: 16px;}
.protect-step__btn{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 54px;
    padding: 0 32px;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    color: #fff;
    margin-right: 20px;
    background-color: #fd6f01;
    border-radius: 20px;
    transition: all 0.3s ease-in-out;
}
.protect-step__btn .icon{ width: 32px; height: 32px; margin-right: 12px; }
.protect-step__btn:hover{
    color: #fff;
    opacity: 0.75;
}

.footer{
    padding-bottom: 40px;
    text-align: center;
    font-weight: 400;
    color: #999;
}
.footer .copyright{ margin-top: 8px;}
.footer .sep{ opacity: 0.5; margin: 0 12px;}

.rule-content h5{ font-size: 20px; font-weight: 600; margin-bottom: 20px; }
.rule-content li{ margin-bottom: 20px; }

/* FAQs */
.faq-item{
    border: 1px solid #eee;
    padding: 8px 20px;
    border-radius: 12px;
    margin-bottom: 16px;
}
.faq-item ::-webkit-details-marker { display: none; }
.faq-item ::-moz-list-bullet { font-size: 0; }
.faq-item summary {
    list-style-type: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    line-height: 1.2;
    padding: 8px 0;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
}
.faq-item summary::marker { display: none; }
.faq-item summary::after {
    content: '';
    flex-shrink: 0;
    width: 10px;
    height: 10px;
    margin-top: -6px;
    margin-left: 12px;
    color: #999;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(135deg);
    transition: transform .2s;
}
.faq-item[open] summary::after {
    transform: rotate(-45deg);
}
.faq-item p {
    display: block;
    margin: 8px 0 8px 0;
}


/* weixin-browser */
.weixin-browser{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    overflow: hidden;
    background-color: rgba(124,176,214,.1);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    background-size: contain;
    display: none;
}
.weixin-browser .weixin-mask{  }
.weixin-browser img{ display: block; margin: 0 auto; width: 100%; }
.weixin-browser .weixin-guide{ margin: 20px 30px;}
.weixin-browser .weixin-tips { margin: 30px 10px;}
.weixin-browser .weixin-tips{
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    margin: 20px 50px;
}
.weixin-browser .weixin-tips-appdown{ margin-bottom: 0; bottom: -20px; }
.weixin-browser .weixin-tips-appdown img{ margin-top: -60px; }

@media screen and (max-width: 1420px) {
    .container{ padding: 0 60px; }
    .jumbotron{ border-radius: 0 0 72px 72px; }
    .jumbotron, .jumbotron-cube{ background-position: 65% center; }
    .jumbotron-intro{ padding: 40px 0 70px 0; max-width: 60%;}
    .jumbotron-title{ font-size: 54px;}
    .jumbotron-action{ padding-top: 36px; }
    .section{ padding: 60px 0;}
    .section-title{ font-size: 44px;}
    .section-subtitle{ max-width: 80%; }
    .what-vpn-group{ gap: 32px;}
    .what-vpn-item{ padding: 36px 36px 20px 36px;}
    .what-vpn-item .img{ height: 240px; margin-bottom: 16px;}
    .features-item img{ width: 240px;}
    .features-item h5{ font-size: 24px; line-height: 1.2; margin-bottom: 16px; }
    .features-item p{ font-size: 16px; }
}

@media screen and (max-width: 1000px) {
    .container{ padding: 0 20px; }
    .header .brand{ display: flex; align-items: center; justify-content: center; position: relative; }
    .header .brand-link--back{  display: inline-flex; }
    .brand{ padding-top: 16px; }
    .jumbotron{ border-radius: 0 0 32px 32px; }
    .jumbotron, .jumbotron-cube{ background-position: 60% center; }
    .jumbotron-intro{ padding: 20px 0 20px 0; max-width: 100%;}
    .jumbotron-title{ font-size: 33px; }
    .jumbotron-feature li{ font-size: 14px; margin-bottom: 8px;}
    .jumbotron-feature .icon{ width: 16px; height: 16px; margin-right: 6px; }
    .jumbotron-action{ padding-top: 20px; }
    .jumbotron-btn{ padding: 0; width: 100%; display: flex; font-size: 20px; margin: 0 0 20px 0;}
    .section{ padding: 40px 0;}
    .section-title{ font-size: 24px; line-height: 1.2; margin-bottom: 20px; }
    .section-title::before{ width: 20px; height: 20px; margin-top: -4px; }
    .section-subtitle{ max-width: 100%; font-size: 12px; }
    .section-subtitle--small{ margin-top: -16px; margin-bottom: 32px; }
    .section p{ font-size: 15px; margin-bottom: 10px;}
    .what-vpn-group{ gap: 16px; padding-top: 0; flex-direction: column; margin-bottom: -20px; }
    .what-vpn-item{ padding: 20px 20px 10px 20px; border-radius: 16px; }
    .what-vpn-item .img{ height: auto; max-width: 60%; margin-bottom: 0;}
    .features-item{ flex-direction: column; margin-top: 20px; }
    .features-item img{ max-width: 60%; }
    .features-item .info{ padding: 0; }
    .features-item h5{ font-size: 20px; margin-bottom: 12px; }
    .features-item h5::after{ width: 12px; height: 12px;}
    .features-item p{ font-size: 16px; }
    .features-divider{  height: 160px; margin: -70px -21px -100px -21px;}
    .features-divider::before{ border-radius: 24px 0 0 0; margin-top: 79px; }
    .features-divider::after { border-radius: 0 0 24px 0;}
    .protect{ flex-direction: column; margin-top: 20px; }
    .protect-info{
        width: 90%;
        padding: 20px 20px 10px 20px;
        border: 8px solid #fff8f3;
        border-bottom: 0 none;
        border-radius: 16px 16px 0 0;
    }
    .protect-info__title{ font-size: 14px;}
    .protect-step{ width: 100%; border-radius: 16px; padding: 20px 20px 8px; }
    .protect-step__title{ font-size: 18px; margin-bottom: 10px; }
    .protect-step p{ font-size: 13px; margin-bottom: 20px; }
    .protect-step li{ font-size: 15px; line-height: 1.2; }
    .protect-step__btn{ width: 100%; display: flex; padding: 0; font-size: 16px; margin: 0 0 16px 0;}
    .footer{ padding-bottom: 20px; font-size: 12px; }
    .rule-content h5{ font-size: 18px; margin-bottom: 10px;}
    .faq-item{ padding: 6px 16px; margin: 12px 0 0 0; }
    .faq-item summary { font-size: 16px; }
}