/* 中秋节模式动画效果样式 — 赏月 / 月饼 / 桂花 */

@import url('https://fonts.googleapis.com/css2?family=Ma+Shan+Zheng&display=swap');

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

/* ========== 夜空背景渐变 ========== */
.midautumn-sky {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 997;
    background: radial-gradient(ellipse at 70% 25%, rgba(30,60,114,.12) 0%, transparent 50%),
                radial-gradient(ellipse at 30% 60%, rgba(20,40,80,.08) 0%, transparent 40%);
}

/* ========== 月亮 ========== */
.midautumn-moon {
    position: fixed;
    top: 6%;
    right: 8%;
    width: 100px;
    height: 100px;
    pointer-events: none;
    z-index: 1002;
    opacity: .55;
    filter: drop-shadow(0 0 15px rgba(255,243,150,.3)) drop-shadow(0 0 30px rgba(255,224,130,.15));
    animation: moonRise 6s ease-out forwards;
}

.midautumn-moon svg {
    display: block;
    width: 100%;
    height: 100%;
}

@keyframes moonRise {
    0% { transform: translateY(60px) scale(.7); opacity: 0; }
    100% { transform: translateY(0) scale(1); opacity: .55; }
}

/* 月光光晕 */
.midautumn-moonglow {
    position: fixed;
    top: 6%;
    right: 8%;
    width: 160px;
    height: 160px;
    margin: -30px 0 0 -30px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,245,180,.08) 0%, rgba(255,224,130,.03) 35%, transparent 70%);
    pointer-events: none;
    z-index: 1001;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: .7; }
    50% { transform: scale(1.08); opacity: 1; }
}

/* ========== 月饼 ========== */
.midautumn-cake {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: cakeFloat 10s linear forwards;
    filter: drop-shadow(0 4px 16px rgba(139,90,43,.2));
    z-index: 1002;
}

.midautumn-cake svg {
    display: block;
}

@keyframes cakeFloat {
    0%   { transform: translateY(-60px) rotate(0deg) scale(.4); opacity: 0; }
    10%  { opacity: .9; }
    25%  { transform: translateY(14vh) rotate(25deg) scale(.85); }
    50%  { transform: translateY(35vh) translateX(-15px) rotate(-15deg) scale(1); }
    75%  { transform: translateY(60vh) translateX(15px) rotate(20deg) scale(.85); opacity: .85; }
    100% { transform: translateY(108vh) translateX(-20px) rotate(-40deg) scale(.3); opacity: 0; }
}

/* ========== 桂花 ========== */
.midautumn-flower {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: flowerFall 7s linear forwards;
    z-index: 999;
}

.midautumn-flower-inner {
    width: 16px;
    height: 16px;
    position: relative;
    opacity: .85;
}

.midautumn-flower-inner::before,
.midautumn-flower-inner::after {
    content: '';
    position: absolute;
}

.midautumn-flower-inner::before {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, #fff9c4, #f9a825);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    box-shadow: 0 0 4px rgba(249,168,37,.3);
}

.midautumn-flower-inner::after {
    width: 30%;
    height: 30%;
    top: 35%;
    left: 35%;
    background: #f57f17;
    border-radius: 50%;
}

/* 桂花颜色变体 */
.midautumn-flower.orange .midautumn-flower-inner::before {
    background: radial-gradient(circle, #ffe0b2, #fb8c00);
    box-shadow: 0 0 4px rgba(251,140,0,.3);
}

.midautumn-flower.orange .midautumn-flower-inner::after { background: #e65100; }

.midautumn-flower.white .midautumn-flower-inner::before {
    background: radial-gradient(circle, #fff, #ffe082);
    box-shadow: 0 0 4px rgba(255,224,130,.3);
}

.midautumn-flower.white .midautumn-flower-inner::after { background: #ffc107; }

@keyframes flowerFall {
    0%   { transform: translateY(-30px) translateX(0) rotate(0deg); opacity: 0; }
    10%  { opacity: .8; }
    100% { transform: translateY(108vh) translateX(var(--fx, 30px)) rotate(var(--fr, 220deg)); opacity: 0; }
}

/* ========== 孔明灯 ========== */
.midautumn-lantern {
    position: absolute;
    pointer-events: none;
    will-change: transform;
    animation: lanternRise 12s linear forwards;
    z-index: 1001;
    filter: drop-shadow(0 0 8px rgba(255,183,77,.4));
}

.midautumn-lantern svg {
    display: block;
}

@keyframes lanternRise {
    0%   { transform: translateY(0) translateX(0) rotate(0deg); opacity: 0; }
    10%  { opacity: .85; }
    30%  { transform: translateY(-15vh) translateX(15px) rotate(3deg); }
    60%  { transform: translateY(-35vh) translateX(-10px) rotate(-2deg); opacity: .7; }
    100% { transform: translateY(-60vh) translateX(20px) rotate(5deg); opacity: 0; }
}

/* ========== 中秋节标题 ========== */
.midautumn-title {
    position: fixed;
    top: 50%;
    left: 50%;
    margin: 0;
    transform: translate(-50%, -50%);
    font-size: 6rem;
    font-weight: normal;
    font-family: 'Ma Shan Zheng', 'STXingkai', 'STKaiti', 'KaiTi', '华文行楷', '楷体', cursive, serif;
    letter-spacing: .2em;
    background: linear-gradient(135deg, #f57f17, #ff6f00, #fdd835, #f57f17);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 20px rgba(245,127,23,.4), 0 0 50px rgba(255,111,0,.3);
    z-index: 1003;
    opacity: 0;
    animation: midTitleFade 5s ease-in-out forwards, midTitleShift 5s ease-in-out forwards;
    pointer-events: none;
    will-change: opacity, filter;
}

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

@keyframes midTitleFade {
    0% { opacity: 0; filter: blur(12px); }
    15% { opacity: 1; filter: blur(0px); }
    80% { opacity: 1; filter: blur(0px); }
    100% { opacity: 0; filter: blur(4px); }
}

/* ========== 中秋节主题颜色 ========== */
.midautumn-mode {
    background: linear-gradient(180deg, #0d1b3e 0%, #152348 25%, #1a2d50 50%, #0f1d3a 100%);
    color: #e8d5b0;
}
.midautumn-mode a { color: #fdd835; }
.midautumn-mode a:hover { color: #ffeb3b; }
.midautumn-mode .btn-primary {
    background: linear-gradient(135deg, #f57f17, #e65100);
    border: none;
    box-shadow: 0 4px 15px rgba(245,127,23,.4);
    color: #fff;
}
.midautumn-mode .btn-primary:hover {
    background: linear-gradient(135deg, #ffb300, #f57f17);
    box-shadow: 0 6px 20px rgba(245,127,23,.55);
}
.midautumn-mode .card {
    background: rgba(15,25,55,.85);
    border: 1px solid rgba(245,127,23,.15);
    box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.midautumn-mode .card:hover { box-shadow: 0 8px 30px rgba(245,127,23,.15), 0 4px 10px rgba(0,0,0,.4); }
.midautumn-mode .navbar {
    background: rgba(10,18,40,.92);
    border-bottom: 1px solid rgba(245,127,23,.2);
}
.midautumn-mode .forum-category-btn {
    color: #fdd835;
    background-color: rgba(245,127,23,.1);
    border-color: rgba(245,127,23,.2);
}
.midautumn-mode .forum-category-btn:hover { background-color: rgba(245,127,23,.18); }
.midautumn-mode .hint-text h3, .midautumn-mode .hint-text p { color: #e8d5b0; }
.midautumn-mode .hint-box {
    background: rgba(15,25,55,.85) !important;
    border: 2px solid rgba(245,127,23,.15) !important;
    box-shadow: 0 10px 30px rgba(0,0,0,.3), 0 0 0 1px rgba(245,127,23,.05) inset !important;
}
.midautumn-mode .hint-box:hover {
    background: rgba(20,30,60,.88) !important;
    border-color: rgba(245,127,23,.3) !important;
    box-shadow: 0 20px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(245,127,23,.1) inset !important;
}
.midautumn-mode .breadcrumb { color: #e8d5b0; }
.midautumn-mode .breadcrumb a { color: #fdd835; }
body.midautumn-mode .site-footer {
    background: linear-gradient(180deg, rgba(10,18,40,.95), rgba(13,22,48,.92));
    border-top: 1px solid rgba(245,127,23,.2);
    color: #e8d5b0;
}
body.midautumn-mode .footer-heading { color: #fdd835; text-shadow: 0 0 6px rgba(245,127,23,.3); }
body.midautumn-mode .social-link {
    background-color: rgba(245,127,23,.1);
    border: 1px solid rgba(245,127,23,.2);
    color: #fdd835;
}
body.midautumn-mode .social-link:hover {
    background-color: rgba(245,127,23,.18);
    border-color: #f9a825;
    color: #ffeb3b;
    box-shadow: 0 5px 15px rgba(245,127,23,.25);
}
body.midautumn-mode .footer-link { color: #e8d5b0; }
body.midautumn-mode .footer-link:hover { color: #fdd835; }
body.midautumn-mode .footer-copyright { color: rgba(232,213,176,.35); }

@media (max-width: 768px) {
    .midautumn-title { font-size: 4.2rem; letter-spacing: .12em; }
    .midautumn-moon { width: 70px; height: 70px; top: 4%; right: 4%; }
}