:root {
    --primary: #c67b5c;
    --bg: #faf6f1;
    --card-bg: #ffffff;
    --text: #4a3728;
    --text-light: #7a6a5c;
    --text-lighter: #b5a595;
    --shadow: 0 2px 12px rgba(74, 55, 40, 0.07);
    --shadow-hover: 0 8px 28px rgba(74, 55, 40, 0.13);
    --radius: 14px;
    --radius-sm: 10px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --global-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --title-size: 2rem;
    --card-name-size: 0.88rem;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--global-font);
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    position: relative;
    -webkit-font-smoothing: antialiased;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}
.bg-layer {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center; background-repeat: no-repeat;
    pointer-events: none; z-index: -1; opacity: 0; transition: opacity 0.6s ease;
}
.ripple {
    position: fixed; border-radius: 50%; pointer-events: none; z-index: 999;
    animation: rippleAnim 0.7s ease-out forwards;
    background: radial-gradient(circle, rgba(198, 123, 92, 0.25) 0%, rgba(198, 123, 92, 0) 70%);
}
@keyframes rippleAnim {
    0% { width: 0; height: 0; opacity: 1; transform: translate(-50%, -50%) scale(0); }
    100% { width: 160px; height: 160px; opacity: 0; transform: translate(-50%, -50%) scale(1); }
}
.container { max-width: 1100px; margin: 0 auto; padding: 28px 24px 20px; position: relative; z-index: 1; }
.header { text-align: center; padding: 30px 20px 10px; }
.clock-wrap { display: none; align-items: center; justify-content: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.clock-time { font-size: 1.65rem; font-weight: 700; color: var(--primary); letter-spacing: 0.03em; font-variant-numeric: tabular-nums; font-family: 'SF Mono', monospace; }
.clock-date { font-size: 0.85rem; color: var(--text-light); font-weight: 400; }
.clock-sync { font-size: 0.65rem; color: var(--text-lighter); margin-left: 4px; opacity: 0.7; }
.header h1 { font-size: var(--title-size); font-weight: 700; color: var(--primary); letter-spacing: 0.02em; margin-bottom: 6px; margin-top: 2px; }
.header .desc { font-size: 0.95rem; color: var(--text-light); font-weight: 400; margin-bottom: 4px; }
.ip-display { text-align: center; font-size: 0.78rem; color: var(--text-lighter); margin-top: 4px; letter-spacing: 0.03em; }
.weather-widget { text-align: center; margin: 8px auto 0; font-size: 0.85rem; color: var(--text-light); display: none; }
.weather-widget span { margin-right: 6px; }
.notice-bar {
    background: var(--card-bg); border-radius: 24px; padding: 10px 20px;
    margin: 14px auto 0; max-width: 520px; box-shadow: var(--shadow);
    display: none; align-items: flex-start; gap: 10px;
    font-size: 0.88rem; line-height: 1.5; color: var(--text); word-break: break-word;
}
.notice-bar .notice-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
.notice-bar .notice-content { flex: 1; }
.search-section { display: flex; justify-content: center; margin: 16px auto 10px; max-width: 520px; }
.search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border-radius: 28px;
    padding: 4px 4px 4px 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    width: 100%;
    border: 2px solid transparent;
    gap: 4px;
}
.search-box:focus-within {
    box-shadow: 0 4px 20px rgba(74, 55, 40, 0.12);
    border-color: #e8d5c4;
    transform: translateY(-1px);
}
.search-box select {
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 0.85rem;
    color: var(--text);
    padding: 8px 4px 8px 0;
    outline: none;
    cursor: pointer;
    flex-shrink: 0;
    min-width: 72px;
    appearance: auto;
    -webkit-appearance: auto;
    background-color: transparent;
}
.search-box select option {
    background: #fff;
    color: var(--text);
}
.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.95rem;
    color: var(--text);
    padding: 8px 4px;
    font-family: inherit;
    letter-spacing: 0.02em;
    min-width: 0;
}
.search-box input::placeholder { color: #c4b8a9; transition: opacity 0.4s; }
.search-btn {
    background: none;
    border: none;
    font-size: 1.3rem;
    padding: 6px 10px;
    cursor: pointer;
    color: var(--text-light);
    border-radius: 50%;
    transition: 0.2s;
    flex-shrink: 0;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.search-btn:hover {
    background: #f5ede4;
    color: var(--primary);
}
.search-btn svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.search-hint { text-align: center; font-size: 0.75rem; color: var(--text-lighter); margin-top: 4px; min-height: 18px; }
.groups-wrapper { display: flex; flex-direction: column; gap: 24px; margin-top: 14px; }
.group-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px 24px 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.group-section:hover { box-shadow: var(--shadow-hover); }
.group-title {
    font-size: 1.05rem; font-weight: 650; color: var(--text); margin-bottom: 14px;
    padding-bottom: 9px; border-bottom: 2px solid #f0e8e0; letter-spacing: 0.03em;
    display: flex; align-items: center; gap: 8px;
}
.group-title::before { content: ''; display: inline-block; width: 5px; height: 19px; background: var(--primary); border-radius: 3px; flex-shrink: 0; }
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 10px; }
.card-item {
    display: flex; align-items: center; gap: 10px; padding: 11px 14px;
    background: #fdfbf8; border-radius: var(--radius-sm); text-decoration: none;
    color: var(--text); transition: var(--transition); border: 1px solid transparent;
    cursor: pointer; position: relative; overflow: hidden;
}
.card-item::after {
    content: ''; position: absolute; inset: 0; border-radius: var(--radius-sm);
    opacity: 0; transition: opacity 0.3s;
    background: linear-gradient(135deg, rgba(198, 123, 92, 0.04) 0%, transparent 60%); pointer-events: none;
}
.card-item:hover { background: #fef9f4; border-color: #e8d5c4; transform: translateY(-3px); box-shadow: 0 6px 18px rgba(74, 55, 40, 0.1); }
.card-item:hover::after { opacity: 1; }
.card-item:active { transform: translateY(-1px) scale(0.98); transition: 0.1s; }
.card-icon {
    width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center;
    justify-content: center; font-size: 1.35rem; background: #faf3eb; flex-shrink: 0; overflow: hidden; transition: 0.2s;
}
.card-item:hover .card-icon { transform: scale(1.08); }
.card-icon img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
.card-info { display: flex; flex-direction: column; min-width: 0; }
.card-name { font-size: var(--card-name-size); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card-desc { font-size: 0.7rem; color: var(--text-light); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.footer-quote { text-align: center; margin-top: 32px; padding: 16px 20px; font-size: 0.82rem; color: var(--text-lighter); letter-spacing: 0.04em; line-height: 1.6; transition: 0.4s; opacity: 0.75; }
.footer-quote .quote-icon { display: block; font-size: 1.4rem; margin-bottom: 6px; opacity: 0.6; }
.action-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
    padding: 0 10px;
}
.action-btn {
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 18px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow);
}
.action-btn:hover {
    background: #fef9f4;
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}
.offline-overlay { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; text-align: center; padding: 40px 20px; }
.offline-overlay .offline-icon { font-size: 5rem; margin-bottom: 20px; animation: float 3s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.offline-overlay h2 { font-size: 1.5rem; color: var(--text); margin-bottom: 10px; font-weight: 650; }
.offline-overlay p { color: var(--text-light); font-size: 1rem; max-width: 400px; line-height: 1.6; }
.hidden-group { display: none; }
.modal-popup { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.35); z-index: 300; align-items: center; justify-content: center; animation: fadeIn 0.3s ease; }
.modal-popup.active { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.popup-content {
    background: #fff; border-radius: 16px; padding: 28px 32px;
    max-width: 500px; width: 90%; box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    position: relative; max-height: 85vh; overflow-y: auto; text-align: center;
    animation: popIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes popIn { from { transform: scale(0.85); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.popup-close {
    position: absolute; top: 12px; right: 16px; background: none;
    border: none; font-size: 1.4rem; cursor: pointer; color: #b5a595; line-height: 1;
}
.popup-close:hover { color: var(--primary); }
.popup-icon { font-size: 3rem; margin-bottom: 10px; display: block; }
.popup-title { font-size: 1.3rem; font-weight: 650; margin-bottom: 16px; color: var(--text); }
.popup-body { font-size: 0.9rem; line-height: 1.6; color: var(--text); text-align: left; margin-bottom: 24px; }
.popup-confirm {
    background: var(--primary); color: #fff; border: none;
    padding: 10px 36px; border-radius: 24px; font-size: 0.95rem;
    cursor: pointer; font-weight: 500; transition: 0.2s;
}
.popup-confirm:hover { opacity: 0.9; }
.feedback-form { text-align: left; }
.feedback-form .form-item { margin-bottom: 14px; }
.feedback-form label { display: block; margin-bottom: 4px; font-weight: 500; font-size: 0.9rem; }
.feedback-form input, .feedback-form textarea { width: 100%; padding: 10px 12px; border: 1px solid #e2d6c9; border-radius: 8px; font-size: 0.9rem; background: #fdfbf8; outline: none; }
.feedback-form textarea { resize: vertical; min-height: 100px; }
@media (max-width: 768px) {
    .container { padding: 16px 12px 32px; }
    .header { padding: 20px 10px 8px; }
    .clock-time { font-size: 1.4rem; }
    .header h1 { font-size: 1.5rem; }
    .notice-bar { margin: 10px 8px 0; padding: 8px 16px; font-size: 0.82rem; border-radius: 20px; }
    .search-section { max-width: 100%; padding: 0 4px; }
    .search-box { padding: 4px 4px 4px 8px; border-radius: 24px; }
    .search-box select { font-size: 0.8rem; min-width: 60px; padding: 6px 2px 6px 0; }
    .search-box input { font-size: 0.9rem; padding: 6px 2px; }
    .search-btn { padding: 4px 8px; }
    .search-btn svg { width: 18px; height: 18px; }
    .cards-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 8px; }
    .card-item { padding: 10px 12px; gap: 8px; }
    .card-icon { width: 30px; height: 30px; font-size: 1.2rem; border-radius: 6px; }
    .card-name { font-size: 0.8rem; }
    .card-desc { font-size: 0.68rem; }
    .group-section { padding: 14px 14px 10px; border-radius: var(--radius-sm); }
    .footer-quote { font-size: 0.75rem; margin-top: 24px; }
    .action-buttons { gap: 8px; }
    .action-btn { padding: 6px 14px; font-size: 0.8rem; }
}