/* 同学录系统 - 温馨主题样式表 */

/* ====== 重置与基础 ====== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --warm-rose: #e8836a;
    --warm-rose-hover: #d47258;
    --warm-pink: #f0a8b8;
    --warm-amber: #f5c26b;
    --warm-cream: #fdf6f0;
    --warm-paper: #fffaf5;
    --warm-brown: #6b4c3b;
    --warm-brown-light: #a0806c;
    --warm-green: #7cb89c;
    --warm-green-hover: #5fa384;
    --danger: #d9706a;
    --danger-hover: #c05a54;
    --success: #6aab8e;
    --warning: #e8a85c;
    --bg: #fdf6f0;
    --card-bg: #fffaf5;
    --text: #5c4535;
    --text-light: #a0806c;
    --border: #ebd5c8;
    --border-light: #f2e3d8;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(107, 76, 59, 0.06);
    --shadow: 0 4px 16px rgba(107, 76, 59, 0.08);
    --shadow-lg: 0 8px 32px rgba(107, 76, 59, 0.12);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Serif SC", serif;
    background: var(--bg);
    background-image:
        radial-gradient(ellipse at 20% 10%, rgba(240, 168, 184, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 90%, rgba(245, 194, 107, 0.10) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(232, 131, 106, 0.05) 0%, transparent 60%);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--warm-rose); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--warm-rose-hover); text-decoration: none; }

img { max-width: 100%; height: auto; }

/* ====== 按钮 ====== */
.btn {
    display: inline-block;
    padding: 10px 22px;
    border: 1px solid var(--border);
    border-radius: 50px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    line-height: 1.4;
    font-weight: 500;
}
.btn:hover {
    background: var(--border-light);
    border-color: var(--warm-rose);
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}
.btn-primary {
    background: linear-gradient(135deg, var(--warm-rose) 0%, #e89672 100%);
    border-color: transparent;
    color: #fff;
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--warm-rose-hover) 0%, #d9805e 100%);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(232, 131, 106, 0.35);
}
.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #e5807a 100%);
    border-color: transparent;
    color: #fff;
}
.btn-danger:hover {
    background: var(--danger-hover);
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(217, 112, 106, 0.35);
}
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-block { display: block; width: 100%; text-align: center; padding: 14px; font-size: 16px; }

/* ====== 徽章 ====== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 500; }
.badge-yes { background: #e8f5ed; color: #5a9476; border: 1px solid #c8e6d4; }
.badge-no { background: #fdeaea; color: #a0605a; border: 1px solid #f5d0ce; }
.badge-sm { font-size: 11px; margin-left: 6px; }

/* ====== 提示 ====== */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}
.alert-success {
    background: #e8f5ed;
    color: #5a9476;
    border: 1px solid #c8e6d4;
}
.alert-error {
    background: #fdeaea;
    color: #a0605a;
    border: 1px solid #f5d0ce;
}
.alert-warning {
    background: #fdf3e5;
    color: #9a7a50;
    border: 1px solid #f5e0c0;
}

.hint { font-size: 13px; color: var(--text-light); margin-top: 6px; }
.required { color: var(--warm-rose); font-weight: 700; }

/* ====== 头部导航 ====== */
.site-header {
    background: linear-gradient(180deg, var(--card-bg) 0%, rgba(255,250,245,0.92) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 8px rgba(107, 76, 59, 0.04);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-light);
}
.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
}
.header-inner h1 {
    font-size: 22px;
    color: var(--warm-rose);
    font-weight: 700;
    letter-spacing: 0.5px;
}
.header-inner .subtitle {
    font-size: 13px;
    color: var(--text-light);
    font-style: italic;
}
.header-nav { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.header-nav a {
    padding: 7px 16px;
    border-radius: 50px;
    font-size: 14px;
    color: var(--warm-brown-light);
    transition: all var(--transition);
    font-weight: 500;
}
.header-nav a:hover {
    background: rgba(232, 131, 106, 0.08);
    color: var(--warm-rose);
    text-decoration: none;
}
.header-nav a.active {
    background: linear-gradient(135deg, var(--warm-rose) 0%, #e89672 100%);
    color: #fff;
    box-shadow: 0 2px 12px rgba(232, 131, 106, 0.25);
}
.header-nav a.active:hover { color: #fff; }

/* ====== 容器 ====== */
.container {
    max-width: 1100px;
    margin: 32px auto;
    padding: 0 24px;
}

/* ====== 区块头 ====== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 10px;
}
.section-header h2 {
    font-size: 24px;
    color: var(--warm-brown);
    font-weight: 700;
}
.section-header h2::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, var(--warm-rose), var(--warm-amber));
    border-radius: 2px;
    margin-right: 10px;
    vertical-align: middle;
    margin-top: -2px;
}
.count {
    color: var(--text-light);
    font-size: 14px;
    background: var(--border-light);
    padding: 4px 14px;
    border-radius: 50px;
}

/* ====== 卡片网格 ====== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.entry-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--border-light);
}
.entry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(232, 131, 106, 0.2);
}

.card-photo {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #fce8e0 0%, #fdf3e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.card-photo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(0deg, rgba(255,250,245,0.6) 0%, transparent 100%);
}
.card-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.card-body {
    padding: 20px 22px 22px;
    position: relative;
}
.card-body h3 {
    font-size: 19px;
    margin-bottom: 10px;
    color: var(--warm-brown);
    font-weight: 650;
}
.card-field {
    font-size: 14px;
    margin-bottom: 5px;
    color: #7a6055;
}
.field-label { color: var(--text-light); font-size: 13px; }
.card-btn {
    display: inline-block;
    margin-top: 12px;
    border-color: var(--warm-rose);
    color: var(--warm-rose);
}
.card-btn:hover {
    background: var(--warm-rose);
    color: #fff;
    border-color: transparent;
}

/* ====== 表单 ====== */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 15px;
    color: var(--warm-brown);
}
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group input[type="url"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
    transition: all var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--warm-rose);
    box-shadow: 0 0 0 4px rgba(232, 131, 106, 0.08);
    background: #fff;
}
.form-group textarea { resize: vertical; line-height: 1.7; }
.radio-group { display: flex; flex-wrap: wrap; gap: 14px; }
.radio-label {
    display: flex !important;
    align-items: center;
    gap: 6px;
    font-weight: normal !important;
    cursor: pointer;
    padding: 8px 16px;
    border: 1.5px solid var(--border);
    border-radius: 50px;
    transition: all var(--transition);
}
.radio-label:hover { border-color: var(--warm-rose); background: rgba(232,131,106,0.04); }
.radio-label:has(input:checked) {
    border-color: var(--warm-rose);
    background: rgba(232,131,106,0.08);
    color: var(--warm-rose);
}
.radio-label input[type="radio"] { width: auto; accent-color: var(--warm-rose); }

.fill-form, .login-form, .settings-form {
    max-width: 600px;
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.form-actions { margin-top: 20px; display: flex; gap: 12px; }

/* ====== checkbox 美化 ====== */
.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 6px;
    accent-color: var(--warm-rose);
    transform: scale(1.15);
    vertical-align: middle;
}

/* ====== 分区标题 ====== */
.section-divider {
    border-top: 2px dashed var(--border);
    padding-top: 24px;
    margin-top: 8px;
}
.section-divider h3 {
    font-size: 17px;
    color: var(--warm-rose);
    margin-bottom: 4px;
}

/* ====== 详情页 ====== */
.detail-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    border: 1px solid var(--border-light);
}
.detail-photo {
    flex: 0 0 320px;
    max-width: 320px;
    background: linear-gradient(135deg, #fce8e0 0%, #fdf3e8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}
.detail-photo img { width: 100%; height: 100%; object-fit: cover; }
.detail-body {
    flex: 1;
    min-width: 300px;
    padding: 32px;
}
.detail-body h2 {
    font-size: 26px;
    margin-bottom: 8px;
    color: var(--warm-brown);
    font-weight: 700;
}
.detail-table { width: 100%; margin-top: 20px; border-collapse: collapse; }
.detail-table td {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 15px;
}
.dt-label {
    color: var(--text-light);
    width: 110px;
    font-size: 14px;
    font-weight: 500;
}
.detail-actions { margin-top: 24px; display: flex; gap: 12px; }

/* ====== 留言板 ====== */
.message-form {
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 28px;
    border: 1px solid var(--border-light);
}
.message-form .form-row { margin-bottom: 14px; }
.message-form input[type="text"],
.message-form textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
    transition: all var(--transition);
}
.message-form input:focus,
.message-form textarea:focus {
    outline: none;
    border-color: var(--warm-rose);
    box-shadow: 0 0 0 4px rgba(232, 131, 106, 0.08);
}
.message-form textarea { resize: vertical; line-height: 1.7; }

.message-list { display: flex; flex-direction: column; gap: 14px; }
.message-item {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 18px 22px;
    border: 1px solid var(--border-light);
    transition: transform var(--transition);
}
.message-item:hover {
    transform: translateX(3px);
    border-color: rgba(232,131,106,0.15);
}
.msg-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.msg-name {
    font-weight: 650;
    color: var(--warm-rose);
    font-size: 15px;
}
.msg-name::before {
    content: '🌸 ';
    font-size: 13px;
}
.msg-time {
    font-size: 12px;
    color: var(--text-light);
}
.msg-content {
    font-size: 15px;
    line-height: 1.8;
    word-break: break-all;
    color: #6b5040;
}

/* ====== 成功卡片 ====== */
.success-card {
    background: var(--card-bg);
    padding: 48px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
    border: 1px solid var(--border-light);
}
.success-card h2 {
    font-size: 26px;
    margin-bottom: 16px;
    color: var(--warm-green);
}
.success-card p { color: var(--text-light); margin-bottom: 8px; }
.account-info {
    background: linear-gradient(135deg, #fdf6f0, #fffaf5);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin: 20px 0;
    text-align: left;
}
.info-row { padding: 8px 0; font-size: 15px; border-bottom: 1px dashed var(--border-light); }
.info-row:last-child { border-bottom: none; }
.info-row span { color: var(--text-light); display: inline-block; width: 80px; }
.info-row strong {
    font-family: "SF Mono", "Fira Code", "Courier New", monospace;
    font-size: 15px;
    color: var(--warm-rose);
    font-weight: 600;
    letter-spacing: 0.5px;
}
.success-actions { margin-top: 24px; display: flex; gap: 12px; justify-content: center; }

/* ====== 登录页 ====== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 15% 20%, rgba(240, 168, 184, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 80%, rgba(245, 194, 107, 0.2) 0%, transparent 50%),
        linear-gradient(170deg, #fce8e0 0%, #fdf3e8 40%, #fdf6f0 70%, #faf0ee 100%);
}
.login-box {
    background: var(--card-bg);
    padding: 48px 44px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}
.login-box h1 { text-align: center; font-size: 26px; color: var(--warm-rose); font-weight: 700; }
.login-box h2 {
    text-align: center;
    font-size: 18px;
    margin: 14px 0;
    color: var(--text-light);
    font-weight: 500;
}
.login-box .subtitle { text-align: center; color: var(--text-light); font-size: 14px; font-style: italic; }
.login-box form { margin-top: 24px; }
.login-box label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--warm-brown);
}
.login-box input[type="password"] {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--border);
    border-radius: 50px;
    font-size: 16px;
    margin-bottom: 20px;
    font-family: inherit;
    background: var(--card-bg);
    transition: all var(--transition);
}
.login-box input:focus {
    outline: none;
    border-color: var(--warm-rose);
    box-shadow: 0 0 0 4px rgba(232,131,106,0.08);
}
.login-box button { width: 100%; }
.login-box .back-link { text-align: center; margin-top: 20px; }
.login-box .hint { text-align: center; margin-top: 14px; }

/* ====== 管理后台 ====== */
.admin-nav {
    background: linear-gradient(135deg, #5c3d3b 0%, #4a3228 100%);
    color: #fff;
    padding: 0 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    min-height: 56px;
}
.nav-brand { font-size: 17px; font-weight: 700; letter-spacing: 0.5px; }
.nav-brand::before { content: '⚙️ '; font-size: 15px; }
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a {
    color: #e8d5c8;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.12); text-decoration: none; }
.admin-content { max-width: 1200px; margin: 28px auto; padding: 0 24px; }
.admin-page {
    background: var(--bg);
    background-image:
        radial-gradient(ellipse at 20% 10%, rgba(240,168,184,0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 90%, rgba(245,194,107,0.06) 0%, transparent 50%);
    background-attachment: fixed;
}

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}
.stat-card {
    background: var(--card-bg);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: transform var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-num { font-size: 40px; font-weight: 700; color: var(--warm-rose); }
.stat-label { color: var(--text-light); margin-top: 6px; font-size: 14px; }

.data-table {
    width: 100%;
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border-collapse: collapse;
    border: 1px solid var(--border-light);
}
.data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-light); font-size: 14px; }
.data-table th {
    background: linear-gradient(180deg, #fdf6f0, #fdf3e8);
    font-weight: 650;
    color: var(--warm-brown);
}
.data-table input[type="text"],
.data-table select,
.data-table textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: var(--card-bg);
}
.data-table input:focus,
.data-table select:focus,
.data-table textarea:focus {
    outline: none;
    border-color: var(--warm-rose);
}
.data-table textarea { resize: vertical; min-height: 38px; }

.settings-form { margin-top: 0; }

/* ====== 页脚 ====== */
.site-footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-light);
    font-size: 13px;
    margin-top: 48px;
    border-top: 1px solid var(--border-light);
}
.site-footer::before {
    content: '🌿 ';
}

/* ====== 详情页照片 ====== */
.detail-field-photo {
    max-width: 500px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-light);
}

/* ====== 辅助 ====== */
.empty { text-align: center; padding: 48px; color: var(--text-light); font-size: 15px; }
.empty-state {
    text-align: center;
    padding: 80px 20px;
}
.empty-state p { font-size: 18px; margin-bottom: 24px; color: var(--text-light); }
.empty-state::before {
    content: '📖';
    font-size: 52px;
    display: block;
    margin-bottom: 20px;
}

.current-photo {
    max-width: 200px;
    border-radius: var(--radius);
    margin-top: 10px;
    border: 3px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}
.edit-account {
    font-size: 14px;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--border-light);
    padding: 8px 16px;
    border-radius: 50px;
}
.edit-account strong {
    color: var(--warm-rose);
    font-family: monospace;
}

.actions { white-space: nowrap; }
.actions .btn { margin-right: 6px; }

/* ====== 响应式 ====== */
@media (max-width: 768px) {
    .card-grid { grid-template-columns: 1fr; }
    .detail-card { flex-direction: column; }
    .detail-photo { flex: none; max-width: 100%; height: 300px; }
    .header-inner { flex-direction: column; text-align: center; }
    .section-header { flex-direction: column; align-items: flex-start; }
    .admin-nav { flex-direction: column; padding: 14px; }
    .nav-links { justify-content: center; }
    .login-box { margin: 20px; padding: 32px 24px; }
    .fill-form, .login-form, .settings-form { padding: 24px; }
    .detail-body { padding: 24px; }
}