/* ========== 设计令牌 (Design Tokens) ========== */
:root {
    --color-primary: #0A8ED8;
    --color-primary-light: rgba(10, 142, 216, 0.1);
    --color-primary-gradient: linear-gradient(270deg, #4D8FE5 0%, #39C8CA 100%);
    --color-text-dark: #333333;
    --color-text-medium: #666666;
    --color-text-light: #999999;
    --color-text-white: #FFFFFF;
    --color-bg-white: #FFFFFF;
    --color-bg-light: #F5F7FA;
    --radius-sm: 6px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --max-width-page: 1920px;
}

/* ========== Flex 布局工具 (原 common.css) ========== */
.flex-col {
    display: flex;
    flex-direction: column;
}

.flex-row {
    display: flex;
    flex-direction: row;
}

.justify-start {
    display: flex;
    justify-content: flex-start;
}

.justify-center {
    display: flex;
    justify-content: center;
}

.justify-end {
    display: flex;
    justify-content: flex-end;
}

.justify-evenly {
    display: flex;
    justify-content: space-evenly;
}

.justify-around {
    display: flex;
    justify-content: space-around;
}

.justify-between {
    display: flex;
    justify-content: space-between;
}

.align-center {
    display: flex;
    align-items: center;
}

/* ========== 页面头部/导航栏 (原 index.css) ========== */
.header {
    width: 100%;
    height: 94px;
    background: #FFFFFF;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header__inner {
    width: 100%;
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__right {
    display: flex;
    align-items: center;
    height: 100%;
}

.header__logo {
    width: 170px;
    height: auto;
}

.header__nav {
    display: flex;
    align-items: center;
    height: 94px;
    margin-left: 20px;
}

.header__nav-items {
    display: flex;
    align-items: center;
    gap: 0;
    height: 100%;
}

.header__nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}

.header__nav-link {
    color: #333333;
    font-size: 16px;
    font-family: 'Microsoft YaHei', sans-serif;
    font-weight: bold;
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.3s ease;
    position: relative;
    display: inline-block;
    text-decoration: none;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 100%;
    height: 3px;
    background: linear-gradient(270deg, #4D8FE5 0%, #39C8CA 100%);
    border-radius: 1.5px;
    transform: translateX(-50%) scaleX(0);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: center;
}

.header__nav-item:hover .header__nav-link {
    color: #0A8ED8;
}

.header__nav-item:hover .header__nav-link::after {
    transform: translateX(-50%) scaleX(1);
}

.header__dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 160px;
    background: #ffffff;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 1000;
}

.header__dropdown::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(270deg, #4D8FE5 0%, #39C8CA 100%);
}

.header__nav-item:hover .header__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.header__dropdown-item {
    display: block;
    padding: 12px 24px;
    color: #666666;
    font-size: 14px;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s ease;
    position: relative;
    text-align: center;
}

.header__dropdown-item:hover {
    color: #0A8ED8;
    background: rgba(10, 142, 216, 0.05);
}

.header__search-btn {
    background-color: #0A8ED8;
    border-radius: 6px;
    height: 28px;
    width: 110px;
    margin-left: 125px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
}

.header__search-btn-text {
    width: 100%;
    height: 100%;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    line-height: 28px;
}

.header__query-btn {
    border-radius: 6px;
    height: 28px;
    border: 1px solid #0A8ED8;
    width: 80px;
    margin-left: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    text-decoration: none;
}

.header__query-btn-text {
    width: 100%;
    height: 100%;
    color: #0A8ED8;
    font-size: 14px;
    font-weight: 700;
    text-align: center;
    line-height: 28px;
}

.header__login-link {
    color: #333333;
    font-size: 16px;
    margin-left: 38px;
    text-decoration: none;
    cursor: pointer;
    line-height: 28px;
}

.header__register-link {
    color: #333333;
    font-size: 16px;
    margin-left: 18px;
    text-decoration: none;
    cursor: pointer;
    line-height: 28px;
}

.header__auth-separator {
    width: 1px;
    height: 16px;
    background: #EEEEEE;
    margin-left: 19px;
}

.header__service-icon {
    width: 20px;
    height: 20px;
    background: url(../images/header_new/3e387da9052e6486a6f617b8db916e16.png) 100% no-repeat;
    background-size: 100% 100%;
    margin-left: 32px;
    margin-right: 20px;
    cursor: pointer;
}

.header__hotline {
    width: 185px;
    height: 94px;
    background: url(../images/header_new/8012d94048a539f4ab12a9d23594e20a.png) 100% no-repeat;
    background-size: 100% 100%;
    margin-left: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-left: 28px;
}

.header__hotline-label {
    color: #FFFFFF;
    font-size: 14px;
}

.header__hotline-number {
    color: #FFFFFF;
    font-size: 24px;
    font-weight: 700;
}

.header__search-popup {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #FFFFFF;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 1000;
    padding: 30px 0;
    border-top: 1px solid #f0f0f0;
}

.header__search-inner {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: center;
}

.header__search-form {
    width: 100%;
    max-width: 600px;
    height: 46px;
    display: flex;
    border: 2px solid #0A8ED8;
    border-radius: 4px;
    overflow: hidden;
}

.header__search-input {
    flex: 1;
    border: none;
    padding: 0 20px;
    font-size: 16px;
    outline: none;
}

.header__search-submit {
    width: 100px;
    background: #0A8ED8;
    color: #FFFFFF;
    border: none;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.header__search-submit:hover {
    background: #087fbf;
}