/* * 配色方案 (Diagonal Symmetric Smudges):
    * BASE: #FCF9E8 (米白 - 主背景)
    * DEPTH 1 (较深): #7FDCE5 (亮星光蓝) -> 用于 左下 & 右上
    * DEPTH 2 (较浅): #D0EDF0 (极淡蓝) -> 用于 左上 & 右下
    */

body {
    /* 全局使用 Noto Sans SC，保证方正清晰 */
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #1B2A31;
    background-color: #FCF9E8; /* 纯米色背景 */
    min-height: 100vh;
    position: relative;
    /* 防止滚动条跳动 */
    overflow-y: scroll; 
    
    /* --- Flex 布局实现 Sticky Footer --- */
    display: flex;
    flex-direction: column;
}

/* --- 让主要视图区域自动填充剩余空间，将 Footer 顶到底部 --- */
#view-home, #view-aigc, #view-check, #view-write, #view-manual, #view-history {
    flex: 1;
    width: 100%; /* 确保宽度占满 */
}

/* * 修改：Ryumin (M-KL) 风格模拟 
    * 优先调用系统中的 Ryumin/Ryumin Pro。
    * 如果未安装，则回退到高品质明朝体(Mincho)或宋体。
    */
.ryumin-font {
    font-family: "Ryumin", "Ryumin Pro", "A-OTF Ryumin Pro", "Ryumin-KL", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "HiraMinProN-W3", "Noto Serif SC", "Songti SC", serif;
    font-weight: 600; /* Ryumin M-KL 介于常规和粗体之间，600较为接近 */
    letter-spacing: 2px; /* 增加字间距以体现日式排版的高级呼吸感 */
}

/* 背景容器 */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background-color: #FCF9E8; /* 纯色填充 */
}

/* 光斑通用设置 */
.ambient-blob {
    position: absolute;
    border-radius: 50%; 
    filter: blur(90px); /* 强模糊制造磨砂晕染感 */
    opacity: 0.6; /* 适中透明度 */
}

/* --- 对角线组 A: 较深 (#7FDCE5) - 径向渐变 --- */

/* blob-bl: 左下角 */
.blob-bl { 
    bottom: -15%; 
    left: -15%; 
    width: 50vw; 
    height: 50vw; 
    background: radial-gradient(circle, #7FDCE5 0%, rgba(127, 220, 229, 0) 65%);
}

/* blob-tr: 右上角 */
.blob-tr { 
    top: -15%; 
    right: -15%; 
    width: 50vw; 
    height: 50vw; 
    background: radial-gradient(circle, #7FDCE5 0%, rgba(127, 220, 229, 0) 65%);
}

/* --- 对角线组 B: 较浅 (#D0EDF0) - 纯色块模式 --- */

/* blob-tl: 左上角 */
.blob-tl { 
    top: -10%; 
    left: -10%; 
    width: 35vw; 
    height: 35vw; 
    background: #D0EDF0; 
    opacity: 0.5;
}

/* blob-br: 右下角 */
.blob-br { 
    bottom: -10%; 
    right: -10%; 
    width: 35vw; 
    height: 35vw; 
    background: #D0EDF0; 
    opacity: 0.5;
}

/* 磨砂玻璃卡片 */
.glass-card {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

/* 拖拽激活状态 - 新增 */
.glass-card.drag-active {
    border-color: #5399A0;
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 0 20px rgba(83, 153, 160, 0.3);
    transform: scale(1.01);
}

.gradient-text {
    background: linear-gradient(135deg, #1B2A31, #5399A0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-gradient {
    background: linear-gradient(135deg, #5399A0 0%, #7dbdc2 100%);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(83, 153, 160, 0.3);
}
.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(83, 153, 160, 0.4);
}

.dashed-box {
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='16' ry='16' stroke='%2398C3C7' stroke-width='2' stroke-dasharray='10%2c 10' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
    transition: background-color 0.3s ease;
}
.dashed-box:hover {
    background-color: rgba(83, 153, 160, 0.08);
}

::selection {
    background: #7FDCE5;
    color: #FFFFFF;
}

/* --- 夸张可爱的艺术标题样式 --- */
.art-title-main {
    font-weight: 900;
    text-shadow: 
        3px 3px 0px #fff, 
        -3px -3px 0px #fff, 
        3px -3px 0px #fff, 
        -3px 3px 0px #fff, 
        5px 5px 0px #D0EDF0, 
        8px 8px 0px rgba(27, 42, 49, 0.1);
    color: #1B2A31;
    /* 同样应用 Ryumin 风格 */
    font-family: "Ryumin", "Ryumin Pro", "A-OTF Ryumin Pro", "Yu Mincho", "Noto Serif SC", serif;
    /* 修改：大幅增加字间距 */
    letter-spacing: 12px;
}

.art-title-span {
    color: #5399A0;
    /* 保持"降重"为原有字体，或根据需要统一 */
    font-family: "Noto Sans SC", sans-serif;
    text-shadow: 
        3px 3px 0px #fff, 
        -3px -3px 0px #fff, 
        3px -3px 0px #fff, 
        -3px 3px 0px #fff, 
        5px 5px 0px #7FDCE5, /* 亮星光蓝阴影 */
        8px 8px 0px rgba(83, 153, 160, 0.2);
    /* 修改：同步增加字间距 */
    letter-spacing: 12px;
}

/* 静态数字特效 */
.stat-number {
    font-family: 'Arial Black', sans-serif;
    letter-spacing: -1px;
    /* 静态阴影让数字浮起 */
    text-shadow: 2px 2px 0px rgba(83, 153, 160, 0.2);
}

/* 炫彩字体特效 - 用于“无限可能” */
.iridescent-text {
    background: linear-gradient(45deg, #ff00cc, #3333ff, #00ccff, #00ff99, #ffff00, #ff0000);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: iridescent 5s ease infinite;
}

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

/* 模态框样式 - 新增 */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(27, 42, 49, 0.3);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}
.modal-content {
    position: relative;
    background: #fff;
    padding: 24px;
    border-radius: 16px;
    width: 300px;
    max-width: 90vw;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}
/* 支持自定义宽度的模态框 */
.modal-content.w-full {
    width: auto;
}
.modal-backdrop.show .modal-content {
    transform: scale(1);
}

/* --- FAQ 展开样式 - 终极丝滑优化版 --- */
.faq-answer {
    max-height: 0;
    overflow: hidden;
    will-change: max-height, opacity, padding;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                padding-top 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    padding-top: 0; 
}

.faq-item {
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: #98C3C7; /* 激活时边框变色 */
    background-color: rgba(255, 255, 255, 0.85); /* 激活时背景加深 */
}

/* 激活时样式，由JS控制高度 */
.faq-item.active .faq-answer {
    opacity: 1;
    padding-top: 12px;
}

.faq-item.active .fa-chevron-right {
    transform: rotate(90deg);
}
.fa-chevron-right {
    transition: transform 0.3s ease;
}

/* 切换页面的隐藏样式 */
.hidden-page {
    display: none;
}

/* 页面切换动画 */
.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 订单筛选按钮样式 */
.order-filter-btn {
    background: rgba(255, 255, 255, 0.6);
    color: #6b7280;
    transition: all 0.2s ease;
}
.order-filter-btn:hover {
    background: rgba(255, 255, 255, 0.9);
}
.order-filter-btn.active {
    background: #5399A0;
    color: white;
}

.status-filter-btn {
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 9999px;
    transition: all 0.2s ease;
}
.status-filter-btn:hover {
    background: #e5e7eb;
}
.status-filter-btn.active {
    background: #5399A0;
    color: white;
}

/* 充值套餐卡片样式 */
.package-card {
    position: relative;
    background: #f9fafb;
    border: 2px solid #e5e7eb;
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}
.package-card:hover {
    border-color: #5399A0;
    background: #f0f9fa;
}
.package-card.selected {
    border-color: #5399A0;
    background: linear-gradient(135deg, rgba(83, 153, 160, 0.1) 0%, rgba(152, 195, 199, 0.1) 100%);
    box-shadow: 0 4px 12px rgba(83, 153, 160, 0.2);
}
.package-card.popular {
    border-color: #5399A0;
}
.package-card .popular-badge {
    position: absolute;
    top: -10px;
    right: 16px;
    background: linear-gradient(135deg, #5399A0 0%, #98C3C7 100%);
    color: white;
    font-size: 10px;
    font-weight: bold;
    padding: 4px 12px;
    border-radius: 9999px;
}

/* 充值 tab 样式 */
#tab-packages.active,
#tab-redeem.active {
    color: #5399A0;
    border-bottom: 2px solid #5399A0;
}