/* ====================
   全局重置与变量
   ==================== */
:root {
    --primary-blue: #1a4fa0;
    --dark-blue: #1e3a8a;
    --light-bg: #f8fafc;
    --text-main: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --max-width: 1240px;
    --radius: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background: #fbfaff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}
.Enter_number img {
    display: inline-block !important;
    vertical-align: middle !important;
}
/* 核心容器：最大宽度1200px 居中 */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用按钮 */
.btn , .loginButton{
    padding: 10px 24px;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-size: 14px;
}
.loginBox {
    position: relative !important;
    top: auto !important;
    right: 0 !important;
    padding-bottom: 20px;
    margin-bottom: -20px;
}
.loginBox img {
    display: inline-block;
    vertical-align:middle;
}
.loginButton {
    border-radius: 4px !important;
    width: auto !important;
    height: auto !important;
    border: 0 !important;
    line-height: normal !important;
    float: none !important;
}
.btn-login , .loginButton{
    background: var(--primary-blue) !important;
    color: var(--white) !important;
}

.btn-primary-outline {
    background: transparent;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
}

/* ====================
   导航栏
   ==================== */
.navbar {
    background: rgb(251, 250, 255);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--dark-blue);
    width: 13.375rem;
    height: 2.1875rem;
    cursor: pointer;
}

.logo-img {
    height: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    position: relative;
    line-height: normal;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-blue);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-blue);
}

/* 下拉菜单样式 */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 10px;
    background: transparent;
}

.nav-dropdown .dropdown-toggle {
    cursor: pointer;
}

.nav-dropdown .dropdown-toggle::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 5px;
    vertical-align: middle;
    border-top: 5px solid;
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
    transition: transform 0.3s;
}

.nav-dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 150px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 8px 0;
    margin-top: 5px;
    list-style: none;
    z-index: 1001;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 20px;
    width: 100%;
    height: 10px;
    background: transparent;
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
    animation: fadeInDown 0.3s ease;
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--text-main);
    white-space: nowrap;
    transition: all 0.3s;
}

.dropdown-menu li a:hover {
    background: #f8fafc;
    color: var(--primary-blue);
    padding-left: 25px;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-buttons {
    display: flex;
    gap: 12px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}

/* ====================
   底部CTA & 按钮动画
   ==================== */
.bottom-cta {
    padding: 60px 0;
    text-align: center;
    color: var(--white);
    background: url('../image/ithenticate39.png') no-repeat center center;
    background-size: 100% 100%;
}

.bottom-cta h2 {
    font-size: 2.375rem;
    font-weight: 900;
    line-height: 2.37rem;
}

.bottom-cta p {
    margin-bottom: 30px;
    font-size: 2.375rem;
    font-weight: 900;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* 按钮动画效果 */
.btn-primary {
    position: relative;
    width: 10rem;
    height: 2.6875rem;
    font-size: 1rem;
    padding: 0;
    cursor: pointer;
    line-height: 2.6875rem;
    text-align: center;
    border-radius: 1.375rem;
    overflow: hidden;
    background: transparent;
    color: #fff;
    border: none;
    z-index: 1;
    transition: background .5s ease,color .5s ease,border-color .5s ease,line-height .5s ease;
}

.btn-primary:before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg,#2585d8,#69baff);
    transform: translateX(0);
    transition: transform .5s ease;
    z-index: -1;
}

.btn-primary:hover:before {
    transform: translateX(50%);
}

.btn-primary:hover {
    color: #305386;
    border: 0.0625rem solid #305386;
    background: #fff;
}
.FloatingWindow {
    position: absolute;
    left: -140px;
    top: 10px;
}