:root {
    --page-bg: linear-gradient(180deg, #f3f7fb 0%, #eef4ff 100%);
    --card-bg: #ffffff;
    --primary: #005fcc;
    --primary-hover: #0049a0;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border: #d8e2ef;
    --shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    --question-bg: #f8fbff;
    --question-border: #e5edf7;
    --focus-ring: rgba(0, 95, 204, 0.08);
    --accent-gradient: linear-gradient(to bottom, #007bff, #0056b3);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--page-bg);
    color: var(--text-main);
}

.page-shell {
    width: min(960px, calc(100vw - 32px));
    margin: 40px auto;
}

.page-intro {
    margin-bottom: 24px;
}

.page-intro h1 {
    margin: 0 0 10px;
    font-size: clamp(28px, 4vw, 38px);
    line-height: 1.15;
}

.page-intro p {
    margin: 0;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

.tours-dialog {
    display: block;
    position: static;
    width: auto;
    height: auto;
    background: none;
}

.registration-form {
    padding: 28px;
    background: var(--card-bg);
    border: 1px solid rgba(216, 226, 239, 0.9);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.panel-header,
.section-header {
    margin-bottom: 24px;
}

.panel-header {
    padding-bottom: 16px;
    border-bottom: 2px solid #edf2f7;
}

.panel-header h2,
.section-header h3,
.section-header h5,
.invoice-settings-card-v2 h5 {
    margin: 0;
}

.panel-header h2 {
    font-size: 24px;
}

.section-header h3 {
    font-size: 20px;
}

.section-header h5,
.invoice-settings-card-v2 h5 {
    font-size: 16px;
    color: var(--text-main);
}

.registration-form .field {
    margin-bottom: 20px;
}

.layui-form .field:has(:required, [lay-verify^="required"]) > label::after {
    content: " *";
    color: #dc2626;
}

.registration-form label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 14px;
}

.registration-form input {
    width: 100%;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: #fff;
}

.registration-form input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-section {
    margin-bottom: 28px;
}

.question-row {
    margin-bottom: 18px;
    padding: 18px 20px;
    background: var(--question-bg);
    border: 1px solid var(--question-border);
    border-radius: 14px;
}

.question-row > label {
    margin-bottom: 12px;
    font-weight: 600;
    color: var(--text-main);
}

.radio-group {
    margin-bottom: 0;
}

.radio-group label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
    color: var(--text-main);
    cursor: pointer;
}

.radio-group input {
    width: 16px;
    height: 16px;
    margin: 0;
}

.invoice-settings-card-v2 {
    background: #fff;
    border-radius: 16px;
    border: 1px solid #eef2f6;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    padding: 24px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.invoice-settings-card-v2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    background: var(--accent-gradient);
}

.invoice-settings-card-v2 .field,
.invoice-settings-card-v2 .form-grid {
    margin-bottom: 0;
}

.companion-box,
.accompanying-person-block {
    display: none;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 8px;
}

.cancel-btn,
.save-btn {
    min-width: 120px;
    border-radius: 10px;
    padding: 12px 30px;
    font-size: 15px;
    cursor: pointer;
}

.cancel-btn {
    border: 1px solid #d0d7de;
    background: #fff;
    color: #475569;
}

.cancel-btn:hover {
    background: #f8fafc;
}

.save-btn {
    background: var(--primary);
    color: #fff;
    border: none;
}

.save-btn:hover {
    background: var(--primary-hover);
}

@media (max-width: 768px) {
    .page-shell {
        width: min(100vw - 24px, 960px);
        margin: 20px auto;
    }

    .registration-form {
        padding: 20px;
        border-radius: 16px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .dialog-actions {
        flex-direction: column-reverse;
    }

    .cancel-btn,
    .save-btn {
        width: 100%;
    }
}