* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", sans-serif;
    background: linear-gradient(180deg, #f4f8ff 0%, #ffffff 40%, #f9fbff 100%);
    color: #1f2937;
}

.container {
    width: min(1080px, calc(100% - 32px));
    margin: 0 auto;
}

.hero {
    padding: 72px 0 48px;
}

.hero h1 {
    margin: 0;
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.2;
}

.hero p {
    margin-top: 16px;
    color: #4b5563;
    font-size: 18px;
}

.actions {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    border: 0;
    border-radius: 10px;
    padding: 12px 20px;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
}

.btn-secondary {
    background: #eff6ff;
    color: #1d4ed8;
}

.section {
    padding: 22px 0;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.card {
    background: #fff;
    border: 1px solid #dbeafe;
    border-radius: 14px;
    padding: 16px;
    box-shadow: 0 6px 24px rgba(37, 99, 235, 0.08);
}

.forms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 12px;
}

.form-panel {
    background: #fff;
    border-radius: 14px;
    padding: 18px;
    border: 1px solid #e5e7eb;
}

.field {
    margin-bottom: 10px;
}

label {
    font-size: 13px;
    color: #4b5563;
    display: block;
    margin-bottom: 4px;
}

input,
textarea {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 10px;
    font-size: 14px;
}

textarea {
    min-height: 88px;
    resize: vertical;
}

.check {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 10px;
}

.tips {
    font-size: 12px;
    color: #6b7280;
}

.result {
    margin-top: 8px;
    font-size: 13px;
}

footer {
    margin-top: 20px;
    padding: 26px 0 36px;
    font-size: 12px;
    color: #6b7280;
}