/**
 * 缘来一对一 - 全局样式
 * 简约清新 · 白 + 淡蓝
 */
:root {
    --color-primary: #4a9eff;
    --color-primary-light: #e8f4ff;
    --color-primary-dark: #2b7fd4;
    --color-bg: #f8fbff;
    --color-card: #ffffff;
    --color-text: #2c3e50;
    --color-text-muted: #7f8c9a;
    --color-border: #e8eef5;
    --color-like: #ff6b8a;
    --color-skip: #94a3b8;
    --shadow: 0 4px 24px rgba(74, 158, 255, 0.08);
    --radius: 12px;
    --header-h: 56px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

/* 页头 */
.site-header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-h);
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
}

.nav-main {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-main a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.nav-main a.active,
.nav-main a:hover {
    color: var(--color-primary);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--color-text);
}

.site-main {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 48px;
    min-height: calc(100vh - var(--header-h) - 60px);
}

.site-footer {
    text-align: center;
    padding: 20px;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-border);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

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

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

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

.btn-outline:hover { background: var(--color-primary-light); }

.btn-sm { padding: 6px 14px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-block { width: 100%; }

/* 卡片 */
.card {
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    border: 1px solid var(--color-border);
}

/* 首页 */
.hero {
    text-align: center;
    padding: 48px 16px 40px;
}

.hero h1 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text);
}

.hero-sub {
    color: var(--color-text-muted);
    margin-bottom: 28px;
    font-size: 1rem;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.hint { margin-top: 16px; font-size: 0.9rem; color: var(--color-text-muted); }

.features { padding: 20px 0 40px; }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--color-card);
    padding: 28px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    text-align: center;
}

.feature-icon {
    width: 48px;
    height: 48px;
    line-height: 48px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 16px;
    font-size: 1.2rem;
    font-weight: 700;
}

.feature-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.feature-card p { color: var(--color-text-muted); font-size: 0.9rem; }

/* 认证页 */
.auth-page, .install-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.auth-card, .install-card { width: 100%; max-width: 400px; }
.auth-card h2, .install-card h1 { margin-bottom: 20px; text-align: center; }
.auth-link { text-align: center; margin-top: 16px; font-size: 0.9rem; color: var(--color-text-muted); }

/* 表单 */
.form label {
    display: block;
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.form label input,
.form label select,
.form label textarea {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    color: var(--color-text);
}

.form label input:focus,
.form label select:focus,
.form label textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-row.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.readonly { display: block; margin-top: 6px; color: var(--color-text); font-size: 1rem; }

.hidden-input { display: none; }

/* 提示 */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-error { background: #fff0f0; color: #c0392b; border: 1px solid #ffd0d0; }
.alert-success { background: #f0fff4; color: #27ae60; border: 1px solid #c8f0d4; }
.alert-info { background: var(--color-primary-light); color: var(--color-primary-dark); border: 1px solid #cce5ff; }

.hidden { display: none !important; }

/* 头像 */
.avatar-lg { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; border: 3px solid var(--color-primary-light); }
.avatar-md { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.avatar-sm { width: 36px; height: 36px; border-radius: 50%; object-fit: cover; }

.profile-avatar-section {
    text-align: center;
    margin-bottom: 24px;
}

.profile-avatar-section .btn { margin-top: 12px; }

/* 匹配页 */
.match-mode-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.mode-toggle {
    display: flex;
    background: var(--color-card);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.mode-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

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

.match-card {
    max-width: 420px;
    margin: 0 auto;
    text-align: center;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.match-loading, .match-empty { color: var(--color-text-muted); padding: 40px 20px; }

.match-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 16px;
    border: 4px solid var(--color-primary-light);
}

.match-name { font-size: 1.4rem; margin-bottom: 8px; }

.match-meta {
    list-style: none;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.match-detail {
    text-align: left;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
    padding: 0 8px;
}

.match-detail p { margin-bottom: 8px; }

.match-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    align-items: center;
}

.btn-skip {
    background: #f1f5f9;
    color: var(--color-skip);
    padding: 12px 20px;
}

.btn-like {
    background: var(--color-like);
    color: #fff;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(255, 107, 138, 0.35);
}

.btn-change {
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 12px 16px;
    font-size: 0.85rem;
}

.match-actions-simple {
    flex-direction: column;
    gap: 10px;
}

.match-actions-simple .btn-lg {
    width: 100%;
    max-width: 280px;
}

.guest-hint { text-align: center; margin-top: 16px; }

.chat-img {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    display: block;
}

.btn-img {
    padding: 8px 12px;
    cursor: pointer;
    flex-shrink: 0;
}

.admin-chat-view { max-height: 70vh; overflow-y: auto; }
.admin-chat-line { border-bottom: 1px solid var(--color-border); padding: 12px 0; }
.admin-chat-line .muted { font-size: 0.8rem; color: var(--color-text-muted); margin-left: 8px; }
.admin-chat-img { max-width: 120px; border-radius: 6px; margin-top: 6px; }
.td-ellipsis { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkbox-label input { width: auto; margin: 0; }

/* 实时匹配 */
.match-type-toggle { margin-bottom: 8px; }
.match-seek-hint { font-size: 0.88rem; color: var(--color-primary); margin: 4px 0 16px; }
.match-setup h2 { margin-bottom: 8px; }
.match-my-info { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 20px; }
.age-range-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    flex-wrap: wrap;
}
.age-range-row input { width: 72px; padding: 8px; border: 1px solid var(--color-border); border-radius: 6px; }
.match-searching {
    text-align: center;
    padding: 48px 24px;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.match-searching:not(.hidden) { display: flex !important; }
.match-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-primary-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.search-desc { color: var(--color-text-muted); margin: 8px 0 16px; font-size: 0.95rem; }
.search-timer { color: var(--color-primary); margin-bottom: 24px; }
.search-timer strong { font-size: 1.2rem; }
.match-failed { text-align: center; padding: 40px 24px; }
.fail-icon { font-size: 2.5rem; margin-bottom: 12px; }
.match-failed h2 { margin-bottom: 8px; }

/* 查看对方资料 */
.user-profile-page { max-width: 480px; margin: 0 auto; }
.user-profile-card { padding: 28px 24px; }
.user-profile-top { text-align: center; margin-bottom: 24px; }
.user-profile-top h2 { margin: 12px 0 6px; }
.user-profile-meta { color: var(--color-text-muted); font-size: 0.95rem; }
.user-profile-location { color: var(--color-text-muted); font-size: 0.9rem; margin-top: 6px; }
.user-profile-dl { margin: 0 0 24px; }
.user-profile-dl dt {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 14px;
    margin-bottom: 4px;
}
.user-profile-dl dd {
    margin: 0;
    line-height: 1.6;
    font-size: 0.95rem;
}
.user-profile-actions { display: flex; flex-direction: column; gap: 10px; }

.chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
}
.chat-header-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    color: inherit;
    min-width: 0;
}
.chat-header-profile:hover { color: var(--color-primary); }
.chat-header .btn-sm { flex-shrink: 0; }

.match-list-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px 4px 0;
}
.match-list-row .match-list-link { flex: 1; min-width: 0; }
.match-profile-btn { flex-shrink: 0; margin-right: 8px; }

/* 弹窗 */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
}

.modal-box {
    position: relative;
    max-width: 360px;
    width: 100%;
    text-align: center;
    z-index: 1;
}

.modal-box h3 { margin-bottom: 8px; }
.modal-box p { color: var(--color-text-muted); margin-bottom: 20px; }
.modal-box .btn { margin: 4px; }

/* 配对列表 */
.page-title { margin-bottom: 20px; font-size: 1.3rem; }

.match-list { list-style: none; }

.match-list-item { margin-bottom: 12px; padding: 0; overflow: hidden; }

.match-list-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    color: inherit;
}

.match-list-link:hover { background: var(--color-primary-light); }

.match-list-info { flex: 1; }
.match-list-info strong { display: block; }
.match-list-info span { font-size: 0.85rem; color: var(--color-text-muted); }

.badge {
    background: var(--color-like);
    color: #fff;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
}

.empty-card { text-align: center; color: var(--color-text-muted); padding: 40px; }

/* 聊天 */
.chat-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - var(--header-h) - 100px);
    max-width: 640px;
    margin: 0 auto;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 12px;
}

.back-link { font-size: 1.2rem; color: var(--color-text); }

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-bubble {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.95rem;
    word-break: break-word;
}

.chat-bubble.mine {
    align-self: flex-end;
    background: var(--color-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.chat-bubble.theirs {
    align-self: flex-start;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-bottom-left-radius: 4px;
}

.chat-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: center;
    margin: 8px 0;
}

.chat-input-bar {
    display: flex;
    gap: 8px;
    padding: 12px 0;
}

.chat-input-bar input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
}

/* 后台 */
.admin-body { background: #f0f4f8; }
.admin-wrap { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 220px;
    background: #1e3a5f;
    color: #fff;
    padding: 20px 0;
}
.admin-sidebar h2 { padding: 0 20px 20px; font-size: 1rem; opacity: 0.9; }
.admin-sidebar a {
    display: block;
    padding: 12px 20px;
    color: rgba(255,255,255,0.75);
}
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.1); color: #fff; }
.admin-content { flex: 1; padding: 24px; overflow: auto; }
.admin-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
.admin-table th, .admin-table td { padding: 12px; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.admin-table th { background: var(--color-primary-light); }
.status-ban { color: #c0392b; }
.status-ok { color: #27ae60; }
.admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: #fff; padding: 20px; border-radius: 8px; border: 1px solid var(--color-border); }
.stat-card strong { font-size: 1.8rem; color: var(--color-primary); display: block; }

/* 响应式 */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-main {
        display: none;
        position: absolute;
        top: var(--header-h);
        right: 0;
        left: 0;
        background: var(--color-card);
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow);
    }
    .nav-main.open { display: flex; }
    .form-row.two-col { grid-template-columns: 1fr; }
    .admin-wrap { flex-direction: column; }
    .admin-sidebar { width: 100%; }
}