body.register-it-page {
    font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
    background: #2e3f69;
    color: #e9f1ff;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.rit-grid-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(82, 131, 222, 0.14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(82, 131, 222, 0.14) 1px, transparent 1px);
    background-size: 42px 42px;
}

.rit-radial {
    position: fixed;
    border-radius: 50%;
    filter: blur(72px);
    opacity: 0.3;
    pointer-events: none;
    z-index: 0;
}

.rit-radial--one {
    width: 460px;
    height: 460px;
    left: -130px;
    top: -150px;
    background: #1d4ed8;
}

.rit-radial--two {
    width: 540px;
    height: 540px;
    right: -160px;
    bottom: -220px;
    background: #06b6d4;
}

.rit-inner {
    position: relative;
    z-index: 2;
}

.rit-layout {
    width: 1200px;
    max-width: calc(100vw - 40px);
    margin: 32px auto 24px;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 28px;
}

.rit-aside {
    border-radius: 20px;
    border: 1px solid rgba(96, 165, 250, 0.35);
    background: linear-gradient(150deg, rgba(18, 37, 75, 0.94), rgba(8, 20, 46, 0.92));
    box-shadow: 0 26px 56px rgba(2, 8, 24, 0.55);
    padding: 40px 34px 34px;
}

.rit-kicker {
    margin: 0 0 14px;
    letter-spacing: 0.18em;
    font-size: 12px;
    color: #93c5fd;
}

.rit-aside h1 {
    margin: 0;
    font-size: 40px;
    line-height: 1.2;
    color: #f4f8ff;
    font-weight: 800;
}

.rit-aside h1 span {
    color: #67e8f9;
}

.rit-summary {
    margin: 18px 0 24px;
    color: #b9ceef;
    font-size: 15px;
    line-height: 1.85;
}

.rit-capability {
    display: grid;
    gap: 12px;
}

.rit-capability-item {
    border-radius: 12px;
    border: 1px solid rgba(125, 211, 252, 0.28);
    background: rgba(16, 36, 71, 0.74);
    padding: 12px 14px;
}

.rit-capability-item strong {
    display: block;
    font-size: 16px;
    color: #9be8ff;
}

.rit-capability-item span {
    font-size: 13px;
    color: #c5daf9;
}

.rit-note {
    margin-top: 18px;
    border-radius: 12px;
    border: 1px dashed rgba(125, 211, 252, 0.36);
    padding: 12px 14px;
    color: #c7ddff;
    font-size: 13px;
    line-height: 1.75;
}

.rit-note strong {
    color: #e5f0ff;
}

.rit-note p {
    margin: 6px 0 0;
}

.rit-main {
    border-radius: 20px;
    border: 1px solid rgba(103, 232, 249, 0.26);
    background: linear-gradient(150deg, rgba(8, 22, 50, 0.96), rgba(3, 12, 30, 0.96));
    box-shadow: 0 22px 50px rgba(2, 8, 24, 0.5);
    padding: 28px 26px 22px;
}

.rit-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 18px;
}

.rit-step {
    border: 1px solid rgba(96, 165, 250, 0.28);
    background: rgba(19, 39, 74, 0.7);
    border-radius: 999px;
    padding: 8px 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.rit-step span {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #1e3a8a;
    color: #e5edff;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    font-weight: 700;
}

.rit-step em {
    font-style: normal;
    font-size: 13px;
    color: #c2d8f8;
}

.rit-step.active {
    border-color: rgba(34, 211, 238, 0.65);
    background: rgba(11, 95, 127, 0.35);
}

.rit-step.active span {
    background: linear-gradient(120deg, #22d3ee, #60a5fa);
    color: #031023;
}

.rit-head h2 {
    margin: 0;
    color: #f5f9ff;
    font-size: 27px;
}

.rit-head p {
    margin: 8px 0 18px;
    color: #a8c2e9;
    font-size: 14px;
}

.rit-options {
    display: grid;
    gap: 12px;
}

.rit-card {
    display: block;
    text-decoration: none;
    border-radius: 14px;
    border: 1px solid rgba(96, 165, 250, 0.3);
    background: rgba(14, 33, 64, 0.78);
    color: #dceafe;
    padding: 16px 16px 14px;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.rit-card:hover {
    transform: translateY(-2px);
    border-color: rgba(34, 211, 238, 0.65);
    box-shadow: 0 12px 26px rgba(14, 116, 144, 0.28);
}

.rit-card-title {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 8px;
}

.rit-card-title h3 {
    margin: 0;
    font-size: 20px;
    color: #f3f8ff;
}

.rit-card-title span {
    font-size: 11px;
    letter-spacing: 0.08em;
    color: #93c5fd;
}

.rit-card ul {
    margin: 0;
    padding: 0 0 0 16px;
    color: #c3d7f8;
    line-height: 1.8;
    font-size: 13px;
}

.rit-card-foot {
    margin-top: 8px;
    font-size: 12px;
    color: #7dd3fc;
}

.rit-card--primary {
    border-color: rgba(34, 211, 238, 0.52);
    background: linear-gradient(120deg, rgba(11, 52, 96, 0.9), rgba(9, 36, 74, 0.9));
}

.rit-bottom {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed rgba(125, 211, 252, 0.3);
    display: flex;
    justify-content: space-between;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.rit-login-entry {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 13px;
    color: #c8dcfb;
}

.rit-login-entry a {
    color: #67e8f9;
    text-decoration: none;
    font-weight: 600;
}

.rit-tip {
    color: #8fb0df;
    font-size: 12px;
}

@media (max-width: 980px) {
    .rit-layout {
        grid-template-columns: 1fr;
        margin-top: 20px;
    }

    .rit-aside h1 {
        font-size: 32px;
    }
}

@media (max-width: 640px) {
    .rit-layout {
        max-width: calc(100vw - 20px);
        gap: 14px;
    }

    .rit-aside,
    .rit-main {
        border-radius: 14px;
        padding: 18px 14px;
    }

    .rit-aside h1 {
        font-size: 26px;
    }

    .rit-steps {
        grid-template-columns: 1fr;
    }
}