.container {
    position: absolute;
    top: 25vh;
    left: 0; right: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 50vh;
    pointer-events: none;
}
.time-section {
    margin-bottom: 4vh;
    text-align: center;
    pointer-events: auto;
}
.search-section {
    pointer-events: auto;
}
.time {
    font-size: 2.8vw;
    font-weight: 700;
    color: #fff !important;
    text-shadow: 0 2px 10px rgba(0,0,0,0.18);
    letter-spacing: 0.08em;
    margin-bottom: 0.7em;
}
.date-weather-group {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 1.2em;
    margin-bottom: 0.2em;
}
.date {
    font-size: 1.1vw;
    color: #888;
    margin-top: 0;
    margin-bottom: 0;
    text-shadow: 0 1px 6px rgba(0,0,0,0.12);
}
.weather {
    font-size: 0.85vw;
    color: #aaa;
    margin-top: 0;
    margin-bottom: 0;
    text-shadow: 0 1px 4px rgba(0,0,0,0.10);
}
.time-colon {
    display: inline-block;
    opacity: 1;
    color: #fff !important;
}
body.night .time-colon {
    color: #fff;
}
body:not(.night) .time-colon {
    color: #222;
} 
.fullscreen-btn-common {
    padding: 0.5em 1.2em;
    font-size: 1.1em;
    border: none;
    border-radius: 1.5em;
    background: rgba(255,255,255,0.12);
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.6s, color 0.6s;
}
.fullscreen-btn-common:hover {
    background: rgba(0,153,255,0.18);
} 
/* 倒计时弹窗样式 */
#countdown-mask {
    display: none;
    position: fixed;
    z-index: 4000;
    top: 0; left: 0; width: 100vw; height: 100vh;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: background 0.6s, opacity 0.6s;
    opacity: 0;
    background: rgba(255,255,255,0.82);
}
body.night #countdown-mask {
    background: rgba(24,26,32,0.92);
}
#countdown-dialog {
    background: rgba(255,255,255,0.95);
    border-radius: 1.5em;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    padding: 2.2em 2.2em 1.5em 2.2em;
    min-width: 320px;
    max-width: 90vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    color: #222;
}
body.night #countdown-dialog {
    background: rgba(40,40,60,0.98);
    color: #fff;
}
#countdown-title {
    font-size: 1.35em;
    font-weight: 700;
    margin-bottom: 0.7em;
    text-align: center;
}
#countdown-input-group input {
    width: 3em;
    font-size: 1.2em;
    text-align: center;
    border-radius: 0.7em;
    border: 1px solid #ccc;
    outline: none;
    color: #222;
    background: #fff;
    transition: border 0.2s, background 0.2s, color 0.2s;
}
body.night #countdown-input-group input {
    color: #fff;
    background: #222;
    border: 1px solid #444;
}
#countdown-input-group input:focus {
    border: 1.5px solid #0099ff;
}
#countdown-start-btn {
    padding: 0.5em 1.3em;
    font-size: 1.1em;
    border: none;
    border-radius: 1em;
    background: #0099ff;
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    cursor: pointer;
    margin-top: 0.5em;
    transition: background 0.3s;
}
#countdown-start-btn:hover {
    background: #0077cc;
}
#countdown-display {
    margin-top: 1.5em;
    font-size: 2em;
    font-weight: 700;
    display: none;
    color: #0099ff;
    letter-spacing: 0.1em;
}
body.night #countdown-display {
    color: #00e0ff;
}
#countdown-back-btn {
    position: absolute;
    left: 1.2em;
    top: 1.2em;
    background: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 0;
}
#countdown-back-btn img {
    width: 2em;
    height: 2em;
    display: block;
    filter: none;
}
body.night #countdown-back-btn img {
    filter: invert(1);
}
#countdown-pause-btn {
    background: #ffaa00;
    color: #fff;
}
#countdown-pause-btn:hover {
    background: #cc8800;
}
#countdown-reset-btn {
    background: #888;
    color: #fff;
}
#countdown-reset-btn:hover {
    background: #555;
}
#countdown-mask.active-hide-ui ~ .container,
#countdown-mask.active-hide-ui ~ .footer,
#countdown-mask.active-hide-ui ~ #settings-btn {
    display: none !important;
}
/* 秒表弹窗样式 */
#stopwatch-mask {
    display: none;
    position: fixed;
    z-index: 4000;
    top: 0; left: 0; width: 100vw; height: 100vh;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: background 0.6s, opacity 0.6s;
    opacity: 0;
    background: rgba(255,255,255,0.82);
}
body.night #stopwatch-mask {
    background: rgba(24,26,32,0.92);
}
#stopwatch-dialog {
    background: rgba(255,255,255,0.95);
    border-radius: 1.5em;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    padding: 2.2em 2.2em 1.5em 2.2em;
    min-width: 320px;
    max-width: 90vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    color: #222;
}
body.night #stopwatch-dialog {
    background: rgba(40,40,60,0.98);
    color: #fff;
}
#stopwatch-title {
    font-size: 1.35em;
    font-weight: 700;
    margin-bottom: 0.7em;
    text-align: center;
}
#stopwatch-display {
    margin-top: 1.5em;
    font-size: 2.5em;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #0099ff;
    user-select: text;
}
body.night #stopwatch-display {
    color: #00e0ff;
}
#stopwatch-back-btn {
    position: absolute;
    left: 1.2em;
    top: 1.2em;
    background: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 0;
}
#stopwatch-back-btn img {
    width: 2em;
    height: 2em;
    display: block;
    filter: none;
}
body.night #stopwatch-back-btn img {
    filter: invert(1);
}
#stopwatch-start-btn {
    padding: 0.5em 1.3em;
    font-size: 1.1em;
    border: none;
    border-radius: 1em;
    background: #0099ff;
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.10);
    cursor: pointer;
    margin-top: 0.5em;
    transition: background 0.3s;
}
#stopwatch-start-btn:hover {
    background: #0077cc;
}
#stopwatch-pause-btn {
    background: #ffaa00;
    color: #fff;
}
#stopwatch-pause-btn:hover {
    background: #cc8800;
}
#stopwatch-reset-btn {
    background: #888;
    color: #fff;
}
#stopwatch-reset-btn:hover {
    background: #555;
}