* {
    padding: 0;
    margin: 0;
}

/*设置导航栏的样式*/
.nav {
    width: 100%;
    height: 40px;
    background-color: rgba(255, 255, 255, 50%);
    box-shadow: -4px 4px 6px rgba(116, 120, 122, 50%);
}

/*导航栏超链接样式*/
.position {
    position: absolute;
    right: 200px;
    top: 9px;
}

.href {
    display: inline-block;
    text-decoration: none;
    color: rgb(116, 120, 122);
    font-size: 1em;
    margin-left: 30px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.href:hover {
    transform: translateY(-3px);
}


html {
    height: 100%;
}

body {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    font-family: "微软雅黑", "Microsoft YaHei", sans-serif;
    color: #2b3a55;
    background: url("../img/背景.jpg") no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
}

.import {
    display: flex;
    align-items: stretch;
    gap: 24px;
    width: min(1080px, calc(100% - 48px));
    margin: auto;
    padding: 56px 0;
    box-sizing: border-box;
}

.left {
    flex: 0 0 380px;
    display: flex;
    flex-direction: column;
    gap: 22px;
    min-width: 0;
}

.right {
    flex: 1 1 auto;
    min-width: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-content: space-between;
}

.box,.box4,.cta {
    position: relative;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-top-color: rgba(255, 255, 255, 0.9);
    border-left-color: rgba(255, 255, 255, 0.8);
    border-radius: 30px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.20), inset 0 0 20px rgba(255, 255, 255, 0.35);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.box:hover,
.box4:hover,
.cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(31, 38, 135, 0.28), inset 0 0 20px rgba(255, 255, 255, 0.45);
}

/*左栏*/
.box1 {
    padding: 34px 32px;
    text-align: center;
}

.eyebrow {
    font-size: 0.76em;
    letter-spacing: 0.34em;
    color: #8e8e8e;
    margin-bottom: 12px;
}

.box1 h1 {
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: clamp(30px, 3vw, 44px);
    letter-spacing: 0.08em;
    line-height: 1.3;
    color: #22314d;
}

.lead {
    margin-top: 14px;
    font-size: 0.98em;
    line-height: 2;
    color: #5a6b8c;
}

.box2,
.box3 {
    padding: 26px 30px;
    text-align: center;
}

.box h2 {
    font-family: "Noto Serif SC", "Songti SC", serif;
    font-size: 1.04em;
    letter-spacing: 0.16em;
    color: #4a5a76;
    padding-bottom: 12px;
    margin-bottom: 14px;
    position: relative;
}

.box h2::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 34px;
    height: 1px;
    background: linear-gradient(90deg, rgba(90, 107, 140, 0), rgba(90, 107, 140, 0.55), rgba(90, 107, 140, 0));
}

.box p {
    font-size: 0.93em;
    line-height: 2;
    color: #5a6b8c;
}

/*标签*/
.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    list-style: none;
}

.tags li {
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.86em;
    color: #4a5a76;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 12px -8px rgba(43, 58, 85, 0.5);
}

/*右栏*/
.box4 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 210px;
    padding: 24px 18px;
    text-align: center;
}

.badge {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    font-weight: 700;
    color: #4a5a76;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 6px 16px -8px rgba(43, 58, 85, 0.45);
    margin-bottom: 8px;
}

.label {
    font-weight: 700;
    font-size: 1.02em;
    letter-spacing: 0.1em;
    color: #22314d;
}

.value {
    font-size: 0.85em;
    line-height: 1.8;
    color: #62718c;
    word-break: break-all;
}

.arrow {
    position: absolute;
    top: 18px;
    right: 20px;
    color: #93a3c0;
    transition: transform 0.3s ease, color 0.3s ease;
}

.box4:hover .arrow {
    transform: translate(3px, -3px);
    color: #3d6bd6;
}

/*写信入口*/
.cta {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    text-decoration: none;
    color: inherit;
}

.cta-text {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cta-title {
    font-weight: 700;
    letter-spacing: 0.12em;
    color: #22314d;
}

.cta-sub {
    font-size: 0.85em;
    color: #62718c;
}

.cta-arrow {
    font-size: 1.3em;
    color: #93a3c0;
    transition: transform 0.3s ease, color 0.3s ease;
}

.cta:hover .cta-arrow {
    transform: translate(4px, -4px);
    color: #3d6bd6;
}