/* ═══════════════════════════════════════
   U4Ever.Love - 主样式表
   用于落地页、认证、控制台、管理后台
   ═══════════════════════════════════════ */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #1a1625;
    --bg-secondary: #2d2640;
    --bg-tertiary: #231e30;
    --accent: #c9956b;
    --accent-hover: #dba87e;
    --accent-soft: rgba(201, 149, 107, 0.15);
    --text-primary: #e8e0d4;
    --text-secondary: #9a8f84;
    --text-muted: #6b6270;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius: 12px;
    --radius-sm: 8px;
    --success: #5cab7d;
    --danger: #c0392b;
    --warn: #e2a738;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
                 "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

code {
    background: rgba(255,255,255,0.06);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
}

/* ─── Container ─── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ─── Navigation ─── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(26, 22, 37, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-logo {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--accent) !important;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--text-primary) !important;
}

.nav-link-muted {
    color: var(--text-muted) !important;
}

.nav-btn {
    background: var(--accent);
    color: #fff !important;
    padding: 0.45rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s;
}

.nav-btn:hover {
    background: var(--accent-hover);
    color: #fff !important;
}

/* ─── Flash Messages ─── */
.flash-container {
    position: fixed;
    top: 68px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    width: 90%;
    max-width: 500px;
}

.flash {
    padding: 0.75rem 1.2rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    animation: fadeDown 0.3s ease;
}

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.flash-success { background: rgba(92, 171, 125, 0.2); border: 1px solid var(--success); color: var(--success); }
.flash-error { background: rgba(192, 57, 43, 0.2); border: 1px solid var(--danger); color: #e74c3c; }
.flash-info { background: var(--accent-soft); border: 1px solid var(--accent); color: var(--accent); }

/* ─── Buttons ─── */
.btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    line-height: 1.4;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent-soft);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-link {
    background: none;
    color: var(--text-secondary);
    padding: 0.5rem 0;
}

.btn-link:hover { color: var(--accent); }

.btn-lg { padding: 0.85rem 2rem; font-size: 1.05rem; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.82rem; }
.btn-xs { padding: 0.25rem 0.6rem; font-size: 0.75rem; }
.btn-block { display: block; width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── Hero Section ─── */
.hero {
    position: relative;
    padding: 10rem 1.5rem 6rem;
    text-align: center;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-glow {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(201, 149, 107, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
}

.hero-accent {
    color: var(--accent);
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ─── Sections ─── */
.section {
    padding: 5rem 1.5rem;
}

.section-alt {
    background: var(--bg-tertiary);
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent);
}

.section-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto;
}

/* ─── Features Grid ─── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ─── Steps ─── */
.steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.step {
    text-align: center;
    flex: 0 1 240px;
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.step h3 {
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.step-arrow {
    color: var(--text-muted);
    font-size: 1.5rem;
    padding-top: 0.8rem;
}

/* ─── Pricing ─── */
.pricing-card {
    max-width: 380px;
    margin: 2.5rem auto 0;
    background: var(--bg-secondary);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    text-align: center;
}

.pricing-header h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.pricing-amount {
    margin-bottom: 1.5rem;
}

.pricing-amount .price {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
}

.pricing-amount .period {
    color: var(--text-secondary);
    font-size: 1rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.4rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pricing-mini {
    padding: 1rem;
    background: var(--accent-soft);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

/* ─── CTA Section ─── */
.cta-section {
    text-align: center;
    padding: 5rem 1.5rem;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
}

.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ─── Footer ─── */
.footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 1.5rem 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand span {
    font-weight: 600;
    color: var(--accent);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ─── Auth Pages ─── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    padding-top: 80px;
}

.auth-card {
    background: var(--bg-secondary);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
}

.auth-logo {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.auth-card h2 {
    text-align: center;
    color: var(--accent);
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-home-link {
    display: block;
    margin-top: 1rem;
    text-align: center;
}

.auth-form-hint {
    text-align: center;
}

.policy-consent {
    display: flex;
    gap: 0.55rem;
    align-items: flex-start;
    color: var(--text-secondary);
    font-size: 0.78rem;
    line-height: 1.6;
    margin: 0.2rem 0 1rem;
    cursor: pointer;
}

.policy-consent input {
    margin-top: 0.22rem;
    flex-shrink: 0;
    accent-color: var(--accent);
}

.section-actions {
    text-align: center;
    margin-top: 1.5rem;
    text-align: center;
}

.policy-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
    margin-bottom: 1rem;
}

.policy-card h2 {
    color: var(--accent);
    font-size: 1.05rem;
    margin-bottom: 0.7rem;
}

.policy-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.8;
}

.policy-card p + p {
    margin-top: 0.7rem;
}

/* ─── Forms ─── */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input[type="file"] {
    padding: 0.6rem;
    font-size: 0.85rem;
}

.form-group input[type="checkbox"] {
    margin-right: 0.5rem;
    accent-color: var(--accent);
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.form-card {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.form-divider {
    border-top: 1px solid var(--border-color);
    margin: 1.5rem 0;
}

.form-info {
    background: var(--accent-soft);
    padding: 1rem 1.2rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.88rem;
    line-height: 1.7;
}

.form-info ul {
    margin-left: 1.2rem;
    margin-top: 0.4rem;
}

.form-info li {
    color: var(--text-secondary);
}

.required { color: var(--danger); }

.input-with-prefix {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.2s;
}

.input-with-prefix:focus-within {
    border-color: var(--accent);
}

.input-prefix {
    padding: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-size: 0.85rem;
    white-space: nowrap;
    border-right: 1px solid var(--border-color);
}

.input-with-prefix input {
    border: none !important;
    border-radius: 0 !important;
}

/* ─── Panel Pages ─── */
.panel-page {
    padding-top: 80px;
    min-height: 100vh;
    padding-bottom: 3rem;
}

.panel-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.panel-narrow {
    max-width: 640px;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.panel-header h1 {
    font-size: 1.6rem;
    font-weight: 600;
}

.panel-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.panel-actions {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.panel-section {
    margin-bottom: 2.5rem;
}

.panel-section h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

/* ─── Stats Grid (Admin) ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card .stat-value {
    font-size: 2rem;
}

.stat-card-warn {
    border-color: var(--warn);
}

.stat-card-warn .stat-value {
    color: var(--warn);
}

/* ─── Relatives Grid ─── */
.relatives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.relative-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: border-color 0.2s;
}

.relative-card:hover {
    border-color: var(--border-hover);
}

.relative-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.relative-card-header h3 {
    font-size: 1.1rem;
}

.relative-card-link {
    margin: 0.8rem 0;
}

.relative-card-link a {
    font-size: 0.85rem;
    word-break: break-all;
}

.relative-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border-color);
}

/* ─── Detail Card ─── */
.detail-card {
    background: var(--bg-secondary);
    padding: 1.5rem 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.detail-card h3 {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.detail-row {
    display: flex;
    padding: 0.4rem 0;
    font-size: 0.9rem;
    gap: 0.5rem;
}

.detail-label {
    color: var(--text-muted);
    min-width: 100px;
    flex-shrink: 0;
}

/* ─── Badge ─── */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 500;
}

.badge-pending { background: rgba(226, 167, 56, 0.2); color: var(--warn); }
.badge-active { background: rgba(92, 171, 125, 0.2); color: var(--success); }
.badge-rejected { background: rgba(192, 57, 43, 0.2); color: var(--danger); }
.badge-reviewing { background: var(--accent-soft); color: var(--accent); }
.badge-none { background: rgba(255,255,255,0.06); color: var(--text-muted); }
.badge-canceling { background: rgba(226, 167, 56, 0.2); color: var(--warn); }

/* ─── Table ─── */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.table th,
.table td {
    padding: 0.65rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}

/* ─── Empty State ─── */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state p {
    margin-bottom: 1rem;
}

/* ─── Admin ─── */
.admin-checklist {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.admin-checklist li {
    margin-bottom: 0.5rem;
}

.inline-admin-form {
    margin-top: 0.8rem;
}

.inline-admin-form + .inline-admin-form {
    margin-top: 1rem;
}

.subscription-cancel-form {
    margin-top: 0.8rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border-color);
}

.subscription-cancel-form .btn-link {
    color: var(--text-muted);
    padding-left: 0;
}

.subscription-cancel-form .btn-link:hover {
    color: var(--danger);
}

/* ─── Utility Classes ─── */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero-sub { font-size: 1rem; }
    .hero { padding: 7rem 1rem 4rem; min-height: auto; }
    .step-arrow { display: none; }
    .steps { flex-direction: column; align-items: center; }
    .nav-links { gap: 0.6rem; }
    .nav-link { font-size: 0.82rem; }
    .panel-header { flex-direction: column; }
    .panel-stats { gap: 1.5rem; }
    .table { font-size: 0.78rem; }
    .table th, .table td { padding: 0.5rem; }
    .detail-row { flex-direction: column; gap: 0.1rem; }
}