/* 五一劳动节模式动画效果样式 — 齿轮 / 麦穗 / 工具 / 红星 */

/* ========== 容器 ========== */
#labor-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    overflow: hidden;
}

/* ========== 天空渐变（热烈的劳动节色调） ========== */
.labor-sky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 997;
    background: radial-gradient(ellipse at 50% 0%, rgba(229,57,53,.1) 0%, transparent 45%),
                radial-gradient(ellipse at 85% 10%, rgba(255,215,0,.09) 0%, transparent 40%),
                radial-gradient(ellipse at 15% 75%, rgba(255,152,0,.07) 0%, transparent 38%),
                radial-gradient(ellipse at 60% 55%, rgba(76,175,80,.06) 0%, transparent 32%),
                radial-gradient(ellipse at 25% 30%, rgba(244,67,54,.06) 0%, transparent 35%),
                radial-gradient(ellipse at 70% 85%, rgba(255,235,59,.05) 0%, transparent 30%);
}

/* ========== 顶部彩带横幅 ========== */
.labor-banner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    pointer-events: none;
    z-index: 1002;
    background: linear-gradient(90deg, #b71c1c, #e53935, #ffd700, #ff8f00, #4caf50, #2196f3, #ffd700, #e53935, #b71c1c);
    box-shadow: 0 2px 14px rgba(229,57,53,.35);
}

.labor-banner::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, #ffd700 10%, #ff8f00 30%, #4caf50 50%, #ffd700 70%, #e53935 85%, transparent);
    opacity: .5;
}

/* ========== 底部光晕 ========== */
.labor-glow {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 35%;
    pointer-events: none;
    z-index: 998;
    background: radial-gradient(ellipse at 50% 100%, rgba(255,215,0,.1) 0%, rgba(229,57,53,.04) 40%, transparent 70%);
}

/* ========== 标题 ========== */
.labor-title {
    position: fixed;
    top: 50%;
    left: 50%;
    margin: 0;
    transform: translate(-50%, -50%);
    font-family: 'Ma Shan Zheng', 'STXingkai', 'STKaiti', 'KaiTi', '华文行楷', '楷体', cursive, serif;
    font-size: 6.5rem;
    font-weight: normal;
    letter-spacing: .15em;
    background: linear-gradient(135deg, #d32f2f, #e53935, #ffd700, #ff8f00, #4caf50, #ffd700, #e53935);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 25px rgba(229,57,53,.4), 0 0 50px rgba(255,215,0,.3);
    -webkit-text-stroke: 1px rgba(211,47,47,.08);
    z-index: 1003;
    opacity: 0;
    animation: laborTitleAnim 5s ease-in-out forwards, laborTitleShift 6s ease-in-out forwards;
    pointer-events: none;
}

@keyframes laborTitleAnim {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(1.5); }
    15%  { opacity: 1; transform: translate(-50%, -50%) scale(.95); }
    25%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    75%  { opacity: .85; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(1); }
}

@keyframes laborTitleShift {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

/* ========== 齿轮飘落 ========== */
.labor-gear {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: gearFloat 10s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 2px 6px rgba(100,100,100,.2));
}

.labor-gear svg {
    display: block;
}

@keyframes gearFloat {
    0%   { transform: translateY(-60px) rotate(0deg) scale(.3); opacity: 0; }
    8%   { opacity: .55; }
    30%  { transform: translateY(20vh) rotate(120deg) scale(.7); }
    60%  { transform: translateY(45vh) rotate(280deg) scale(.85); }
    85%  { transform: translateY(72vh) rotate(400deg) scale(.55); opacity: .4; }
    100% { transform: translateY(108vh) rotate(540deg) scale(.2); opacity: 0; }
}

/* ========== 麦穗飘落 ========== */
.labor-wheat {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: wheatFloat 11s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 2px 4px rgba(180,120,20,.15));
}

.labor-wheat svg {
    display: block;
}

@keyframes wheatFloat {
    0%   { transform: translateY(-50px) translateX(0) rotate(0deg) scale(.4); opacity: 0; }
    10%  { opacity: .6; }
    25%  { transform: translateY(16vh) translateX(20px) rotate(30deg) scale(.7); }
    50%  { transform: translateY(38vh) translateX(-10px) rotate(-20deg) scale(.85); }
    75%  { transform: translateY(64vh) translateX(25px) rotate(15deg) scale(.65); opacity: .5; }
    100% { transform: translateY(108vh) translateX(-15px) rotate(-40deg) scale(.25); opacity: 0; }
}

/* ========== 工具飘落 ========== */
.labor-tool {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: toolFloat 12s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 2px 6px rgba(60,60,60,.15));
}

.labor-tool svg {
    display: block;
}

@keyframes toolFloat {
    0%   { transform: translateY(-40px) rotate(0deg) scale(.35); opacity: 0; }
    8%   { opacity: .5; }
    30%  { transform: translateY(18vh) rotate(90deg) scale(.65); }
    55%  { transform: translateY(40vh) rotate(-30deg) scale(.75); }
    80%  { transform: translateY(65vh) rotate(60deg) scale(.55); opacity: .4; }
    100% { transform: translateY(108vh) rotate(180deg) scale(.2); opacity: 0; }
}

/* ========== 五角星闪光 ========== */
.labor-star {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: laborStarFloat 8s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 0 6px rgba(255,193,7,.35));
}

.labor-star svg {
    display: block;
}

@keyframes laborStarFloat {
    0%   { transform: translateY(-30px) rotate(0deg) scale(.2); opacity: 0; }
    10%  { opacity: .55; }
    30%  { transform: translateY(15vh) rotate(72deg) scale(.7); }
    55%  { transform: translateY(35vh) rotate(180deg) scale(.85); }
    80%  { transform: translateY(60vh) rotate(280deg) scale(.6); opacity: .4; }
    100% { transform: translateY(108vh) rotate(360deg) scale(.15); opacity: 0; }
}

/* ========== 五彩纸屑飘落 ========== */
.labor-confetti {
    position: absolute;
    width: 12px;
    height: 6px;
    border-radius: 2px;
    pointer-events: none;
    z-index: 1000;
    animation: confettiLaborFloat 9s linear forwards;
    transform: rotate(calc(var(--cr, 0deg)));
}

@keyframes confettiLaborFloat {
    0%   { transform: translateY(-20px) translateX(0) rotate(0deg); opacity: 0; }
    8%   { opacity: .75; }
    25%  { transform: translateY(18vh) translateX(25px) rotate(120deg); }
    50%  { transform: translateY(38vh) translateX(-20px) rotate(250deg); }
    75%  { transform: translateY(62vh) translateX(30px) rotate(380deg); opacity: .55; }
    100% { transform: translateY(108vh) translateX(-25px) rotate(520deg); opacity: 0; }
}

/* ========== 红绸带飘落 ========== */
.labor-ribbon {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: laborRibbonFloat 9s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 2px 4px rgba(200,0,0,.12));
}

.labor-ribbon svg {
    display: block;
}

@keyframes laborRibbonFloat {
    0%   { transform: translateY(-40px) translateX(0) rotate(0deg); opacity: 0; }
    8%   { opacity: .55; }
    30%  { transform: translateY(18vh) translateX(20px) rotate(15deg); }
    55%  { transform: translateY(42vh) translateX(-15px) rotate(-10deg); }
    80%  { transform: translateY(68vh) translateX(25px) rotate(20deg); opacity: .4; }
    100% { transform: translateY(108vh) translateX(-10px) rotate(-30deg); opacity: 0; }
}

/* 响应式 */
@media (max-width: 768px) {
    .labor-title {
        font-size: 4.2rem;
        letter-spacing: .12em;
    }
}

@media (max-width: 480px) {
    .labor-title {
        font-size: 3rem;
        letter-spacing: .1em;
    }
}