/* 页面整体 */
* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    width: 100%;
    min-height: 100%;
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
}

body {
    background:
        linear-gradient(
            135deg,
            rgba(89, 10, 20, 0.96),
            rgba(153, 43, 53, 0.90)
        );
}

/* 页面居中区域 */
.access-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

/* 访问验证卡片 */
.access-card {
    width: min(460px, 100%);
    padding: 46px 44px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow: 0 24px 70px rgba(40, 0, 6, 0.30);
}

/* AI 标识 */
.access-mark {
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #a12432, #ed5a62);
}

/* 英文小标题 */
.access-label {
    margin: 24px 0 8px;
    color: #d84450;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
}

/* 主标题 */
.access-card h1 {
    margin: 0;
    color: #08254a;
    font-size: 34px;
}

/* 说明文字 */
.access-description {
    margin: 14px 0 30px;
    color: #6f7f94;
    font-size: 14px;
    line-height: 1.8;
}

/* 输入标题 */
.access-card label {
    display: block;
    margin-bottom: 9px;
    color: #102b4c;
    font-size: 14px;
    font-weight: 700;
}

/* 口令输入框 */
.access-card input {
    width: 100%;
    height: 54px;
    padding: 0 16px;
    border: 1px solid #d8e0ea;
    border-radius: 9px;
    color: #102b4c;
    font-size: 16px;
    outline: none;
}

.access-card input:focus {
    border-color: #d84450;
    box-shadow: 0 0 0 3px rgba(216, 68, 80, 0.12);
}

/* 错误提示 */
.access-error {
    margin: 10px 0 0;
    color: #d92737;
    font-size: 13px;
}

/* 验证按钮 */
.access-card button {
    width: 100%;
    height: 54px;
    margin-top: 22px;
    border: 0;
    border-radius: 9px;
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    background: linear-gradient(90deg, #a12432, #ef4f59);
}

.access-card button:hover {
    filter: brightness(1.06);
}

.access-card button span {
    margin-left: 12px;
}