* {
	box-sizing: border-box;
}

body {
	padding: 0;
	margin: 0;
	background: #FAFAFA;
    background-image: linear-gradient(#FFC94B, #FAFAFA);
    background-repeat: no-repeat;
    background-size: 100% 500px;
	font-family: 'Helvetica', 'Arial', sans-serif;
	overflow-x: hidden;
	width: 100%;
	max-width: 100%;
}

a {
    color: #444;
    text-decoration: none;
}

.top-nav {
    padding: 12px;
    height: 50px;
    line-height: 50px;
    letter-spacing: 0.2px;
}

.top-nav-logo {
    float: left;
}

.top-nav-logo img {
    height: 80px;
    width: 80px;
    border-radius: 20px;
    vertical-align: middle;
    margin-left: 10px;
}

/*
.top-nav-logo a {
    font-size: 20px;
    font-weight: 500;
    vertical-align: middle;
    margin-left: 10px;
    color: #FFF;
}
*/

.top-nav-menu {
    float: right;
}

ul {
    list-style-type: none;
    margin: 0 20px 0 0;
    padding: 0;
}

li {
    display: inline-flex;
    margin-left: 10px;
}

.top-nav-menu ul li a {
    color: #FFF;
    font-size: 16px;
    font-weight: 100;
}

.top-nav-menu ul li a:hover {
    color: #333;
}

.banner {
    color: #333;
    text-align: center;
}

.banner .title {
    margin: 60px 0 0 0;
    font-size: 60px;
    font-weight: 700;
    letter-spacing: -1.5px;
}

.banner .subtitle {
    margin: 50px 0 0 0;
    font-size:  24px;
    letter-spacing: 0.2px;
}

.banner-description {
    padding: 10%;
}

.banner-description .subtitle {
    margin: 0;
    font-size: 18px;
    line-height: 1.8;
    color: #555;
}

.ios-download {
    display: block;
    margin: auto;
    margin-top: 50px;
    margin-bottom: 80px;
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #FFF;
    border-radius: 20px;
    box-shadow: 0 3px 10px #EEE;
}

.ios-download img {
    float: left;
    height: 30px;
    width: 25px;
    margin: 7px 0 0 15px;
    vertical-align: middle;
}

.ios-download p {
    float: left;
    vertical-align: middle;
    margin: 0 0 0 10px;
    font-size: 16px;
}

.content {
    text-align: center;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

.content-privacy, .content-terms {
    margin: 50px;
    font-size: 14px;
}

.content-row {
    display: inline-block;
    width: 80%;
    margin: 10px;
    height: 600px;
}

.content-row .row-text {
    float: left;
    width: 50%;
    height: 100%;
    align-items: center;
    display: flex;
}

.content-row .row-image {
    float: left;
    width: 50%;
}

.row-text p {
    font-size: 28px;
    margin: auto;
    padding: 30px;
    width: 60%;
    border-radius: 40px;
    box-shadow: 0px 0px 200px #FFC94B;
}

.row-image {
    height: 600px;
    width: 400px;
    max-width: 100%;
}

.row-image img {
    max-width: 100%;
    max-height: 100%;
    border-radius: 40px;
    box-shadow: 0px 0px 50px #BBB;
}

.footer-divider {
    border-top: 1px solid #EEE;
    margin-top: 50px;
    width: 90%;
}

.footer {
    text-align: center;
}

.footer-menu {
    margin-top: 50px;
    margin-bottom: 30px;
}

.footer-menu ul li a {
    color: #CCC;
    font-size: 16px;
    font-weight: 100;
}

.footer-menu ul li a:hover {
    color: #FFC94B;
}

.footer-copy p {
    font-size: 14px;
    margin-bottom: 50px;
    color: #333;
}

.feedback-section {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
}

.feedback-section h2 {
    text-align: center;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    max-width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}

.feedback-section button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
}

.feedback-section button:hover {
    background-color: #0056b3;
}

/* 手机端响应式优化 */
@media screen and (max-width: 768px) {
    html, body {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    body {
        background-size: 100% 300px;
    }

    .top-nav {
        padding: 8px;
        height: 40px;
        line-height: 40px;
    }

    .banner .title {
        margin: 30px 0 0 0;
        font-size: 36px;
        letter-spacing: -0.5px;
    }

    .banner .subtitle {
        margin: 20px 0 0 0;
        font-size: 16px;
        padding: 0 20px;
    }

    .banner-description {
        padding: 5% 5% !important;
    }

    .banner-description .subtitle {
        font-size: 14px;
        line-height: 1.6;
        margin: 0;
    }

    .content-row {
        display: block;
        width: 95%;
        max-width: 100%;
        margin: 20px auto;
        height: auto;
        padding: 20px 0;
        box-sizing: border-box;
    }

    .content-row .row-text {
        float: none;
        width: 100%;
        height: auto;
        display: block;
        margin-bottom: 20px;
    }

    .content-row .row-image {
        float: none;
        width: 100%;
        height: auto;
        margin: 0 auto;
    }

    .row-text p {
        font-size: 20px;
        margin: 0 auto;
        padding: 20px;
        width: 90%;
        max-width: 100%;
        box-sizing: border-box;
        box-shadow: 0px 0px 100px #FFC94B;
    }

    .row-image {
        height: auto;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        box-sizing: border-box;
    }

    .row-image img {
        width: 100%;
        height: auto;
        border-radius: 20px;
    }

    .footer-divider {
        margin-top: 30px;
        width: 95%;
    }

    .footer-copy p {
        font-size: 12px;
        margin-bottom: 30px;
        padding: 0 15px;
        line-height: 1.6;
    }

    .feedback-section {
        max-width: 95%;
        width: 95%;
        margin: 30px auto;
        padding: 15px;
        box-sizing: border-box;
    }

    .feedback-section h2 {
        font-size: 20px;
        margin-bottom: 15px;
    }

    .form-group {
        margin-bottom: 12px;
    }

    .form-group label {
        font-size: 14px;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px;
        font-size: 14px;
        box-sizing: border-box;
        max-width: 100%;
    }

    .feedback-section button {
        padding: 12px 20px;
        font-size: 16px;
    }

    /* 手机端隐藏最后一个标题 */
    .hide-on-mobile {
        display: none !important;
    }
}

/* 小屏手机优化 */
@media screen and (max-width: 480px) {
    .banner .title {
        font-size: 28px;
        margin: 20px 0 0 0;
    }

    .banner .subtitle {
        font-size: 14px;
        margin: 15px 0 0 0;
    }

    .banner-description .subtitle {
        font-size: 13px;
    }

    .content-row {
        width: 98%;
        max-width: 100%;
        margin: 15px auto;
        padding: 15px 0;
        box-sizing: border-box;
    }

    .row-text p {
        font-size: 18px;
        padding: 15px;
        width: 95%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .row-image {
        max-width: 250px;
    }

    .footer-copy p {
        font-size: 11px;
    }
}