* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background: url('../images/1.jpg') no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    font-family: "Microsoft YaHei", sans-serif;
    padding-top: 100px;
}

/* 导航栏 */
.nav-bar {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 85%;
    max-width: 1200px;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 999;
}
.nav-bar a {
    padding: 8px 20px;
    text-decoration: none;
    color: rgba(0, 0, 0, 0.6);
    border-radius: 8px;
    font-size: 15px;
}
.nav-bar a:hover {
    background: rgba(255, 255, 255, 0.25);
}
.nav-bar a.active {
    background: #4a90d9;
    color: #fff;
}

/* 页面总容器 */
.page-container {
    width: 85%;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 100px - 5px);
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* 所有卡片统一白色40%圆角 */
.card {
    background: rgba(255, 255, 255, 0.4);
    border-radius: 16px;
    padding: 24px;
}

/* 顶部文字区域 */
.top-banner {
    width: 100%;
    text-align: center;
}
.top-banner p {
    font-family: KaiTi, "楷体", serif;
    font-weight: bold;
    font-size: 20px;
}

/* F型主体布局 */
.main-layout {
    display: flex;
    gap: 28px;
    align-items: stretch;
    flex: 1;
}

/* ===== 左侧：个人资料卡 ===== */
.profile-card {
    width: 340px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 16px;
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}
.avatar-wrap {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.6);
    flex-shrink: 0;
}
.avatar-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}
.tag {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    color: #fff;
}
.intro-box {
    flex: 1;
    width: 100%;
    padding: 16px;
    border: 1px solid rgba(128, 128, 128, 0.3);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.25);
    font-size: 14px;
    line-height: 1.7;
    color: rgba(0, 0, 0, 0.6);
}

/* 右列 */
.right-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.row {
    display: flex;
    gap: 28px;
    flex: 1;
}
.row .card {
    flex: 1;
    text-align: center;
}
.row-wider {
    margin: 0 -5px;
}

/* 中间文字条 */
.middle-text {
    width: 100%;
    text-align: center;
}
.middle-text p {
    font-family: KaiTi, "楷体", serif;
    font-weight: bold;
    font-size: 20px;
}

/* ===== 人数模块 ===== */
.info-card {
    display: flex;
    flex-direction: column;
    padding: 4px;
}
.info-label {
    font-size: 20pt;
    text-align: left;
    padding: 5px;
    line-height: 1.4;
}
.info-count {
   flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "华文体珀", "STHupo", cursive;
    font-size: 40pt;
    color: rgba(0, 0, 0, 0.6);
}

/* ===== 音乐模块 ===== */
.music-card {
    display: flex;
    align-items: center;
    justify-content: center;
}
.music-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.music-cover {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    animation: rotateDisk 12s linear infinite;
    animation-play-state: paused;
}
@keyframes rotateDisk {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.music-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.title-wrap {
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    text-align: center;
}
.music-title {
    display: inline-block;
    white-space: nowrap;
    font-size: 15px;
}
.music-title.scrolling {
    animation: scrollTitle 5s linear infinite;
}
@keyframes scrollTitle {
    0%   { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}
.music-progress {
    width: 100%;
}
.music-controls {
    display: flex;
    gap: 8px;
}
.music-controls button {
    border: none;
    border-radius: 8px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.6);
    cursor: pointer;
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 5px; }
::-webkit-scrollbar-thumb { background: #bbb; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #999; }
* { scrollbar-width: thin; scrollbar-color: #bbb #f1f1f1; }

/* 小屏适配 */
@media (max-width: 1100px) {
    .main-layout { flex-direction: column; }
    .profile-card { width: 100%; }
    .row-wider { margin: 0; }
}

/* ===== 日历 ===== */
.calendar-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
}
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}
.cal-title {
    font-size: 20px;
    font-weight: bold;
    color: rgba(0, 0, 0, 0.6);
}
.cal-nav {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    color: rgba(0, 0, 0, 0.6);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s;
}
.cal-nav:hover {
    background: rgba(255, 255, 255, 0.9);
}
.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    text-align: center;
    font-size: 16px;
    font-weight: bold;
    color: rgba(0, 0, 0, 0.6);
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    width: 100%;
}
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    text-align: center;
    width: 100%;
}
.cal-day {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 0;
    font-size: 17px;
    border-radius: 6px;
    cursor: default;
    transition: background 0.2s;
}
.cal-day:hover {
    background: rgba(255, 255, 255, 0.5);
}
.cal-day.other-month {
    color: rgba(0, 0, 0, 0.6);
}
.cal-day.today {
    background: #4a90d9;
    color: #fff;
    font-weight: bold;
}
.cal-day.weekend {
    color: #e74c3c;
}
.cal-day.today.weekend {
    color: #fff;
}

/* ==========答案之书｜原版紫封面风格 + 3D翻页========== */
.answer-book-card{
    display:flex;
    flex-direction:column;
    gap:16px;
}
.answer-book-card h3{
    font-size:18px;
    color:#fff;
    text-align:center;
}
.answer-book-card .tip{
    font-size:13px;
    color:#e2d9e9;
    text-align:center;
}

.book-wrap{
    display:flex;
    justify-content:center;
    perspective:1200px;
}
.book{
    width:220px;
    height:280px;
    position:relative;
}
.book-page{
    position:absolute;
    width:100%;
    height:100%;
    transform-origin: left center;
    transform-style: preserve-3d;
    background:#382b47; /* 和原图封面深紫色一致 */
    border-radius:0 8px 8px 0;
    box-shadow: 2px 3px 12px rgba(0,0,0,0.35);
}
.front-page{
    z-index:2;
    border-radius:8px;
}
/* 翻页动画 */
.book-page.flip{
    animation: pageFlip 1.2s ease-in-out forwards;
}

@keyframes pageFlip {
    0%{
        transform: rotateY(0deg);
    }
    100%{
        transform: rotateY(-180deg);
    }
}

.page-content{
    width:100%;
    height:100%;
    padding:24px 16px;
    display:flex;
    align-items:center;
    justify-content:center;
}
/* 封面文字样式，还原原版排版 */
.cover-content{
    flex-direction:column;
}
.cover-circle{
    text-align:center;
    color:#e8d8e4;
}
.cover-en{
    font-size:14px;
    margin:0;
    opacity:0.85;
}
.cover-title{
    font-size:26px;
    letter-spacing:2px;
    margin:4px 0;
}
.cover-cn{
    font-size:24px;
    margin:0;
}
#answer-text{
    font-size:16px;
    line-height:1.9;
    color:#f0e6f2;
    text-align:center;
}

#get-answer-btn{
    border:none;
    border-radius:10px;
    padding:10px;
    background:#6b4f88;
    color:#fff;
    cursor:pointer;
    font-size:15px;
    transition:0.2s;
}
#get-answer-btn:hover{
    background:#523b6b;
}

/* ==========进场欢迎页：90pt 彩色 Welcome ========== */

.intro-splash {
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: url("../images/jin.webp") no-repeat center center;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 2s ease-in-out;
}

.intro-splash.slide-up {
    transform: translateY(-100%);
}

.splash-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
}

.splash-avatar {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.65);
}

.splash-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.welcome-3d {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    perspective: 800px;
}

.welcome-3d span {
    font-size: 90pt;
    font-weight: 900;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    transform: translateZ(10px);
    transition: transform 0.25s ease-out;
    cursor: default;
    text-shadow:
        2px 2px 0 rgba(0, 0, 0, 0.25),
        4px 4px 10px rgba(0, 0, 0, 0.35);
    letter-spacing: 2px;
}

/* 儿童感单字母配色：红、黄、蓝、青、蓝、紫 */
.letter-red    { background-image: linear-gradient(180deg, #ff4d4d, #c1272d); }
.letter-yellow { background-image: linear-gradient(180deg, #ffdd33, #f5a623); }
.letter-blue   { background-image: linear-gradient(180deg, #4da6ff, #165DFF); }
.letter-cyan   { background-image: linear-gradient(180deg, #33e0ed, #0097a7); }
.letter-purple { background-image: linear-gradient(180deg, #b066ff, #6a1b9a); }

/* 鼠标滑过单个字母上升 */
.welcome-3d span:hover {
    transform: translateY(-22px) translateZ(30px) scale(1.08);
}