/* ============================================================
   零源机构 · 移动端 Z℮R∅‑SOURCE / MOD
   base.css — 移动端专用设计系统
   仅面向手机/平板竖屏，不包含任何桌面端布局分支
   ============================================================ */

/* ------------------------------------------------------------
   1. 设计令牌
   ------------------------------------------------------------ */
:root {
    /* 品牌色（与 PC 端保持一致） */
    --grad-pink: #ff6b9d;
    --grad-purple: #c44dff;
    --grad-blue: #4dd0ff;
    --grad-green: #4dffb8;
    --grad: linear-gradient(135deg, #4a9eff, #6c5ce7);
    --accent: #4a9eff;
    --accent2: #6c5ce7;

    /* 文本与底色 */
    --bg-base: #f5f0ff;
    --text-dark: #1a1530;
    --text-mid: #5a5078;
    --text-light: #9a90b8;

    /* 液态玻璃 */
    --glass-bg: rgba(255, 255, 255, 0.46);
    --glass-bg-strong: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.62);
    --glass-shadow: 0 8px 28px rgba(120, 80, 200, 0.12);
    --glass-shadow-lg: 0 14px 40px rgba(120, 80, 200, 0.2);
    --blur: 16px;

    /* 有机圆角（延续 PC 端不规则圆角语言） */
    --r-card: 22px 34px 24px 38px;
    --r-card-sm: 16px 24px 18px 26px;
    --r-btn: 50px;
    --r-sheet: 28px 28px 0 0;
    --r-pill: 50px;

    /* 尺寸骨架 */
    --appbar-h: 54px;
    --tabbar-h: 58px;
    --gap: 16px;
    --pad: 16px;
    --maxw: 720px;

    /* 顶部/底部安全区（刘海屏、手势条） */
    --sat: env(safe-area-inset-top, 0px);
    --sab: env(safe-area-inset-bottom, 0px);
    --sal: env(safe-area-inset-left, 0px);
    --sar: env(safe-area-inset-right, 0px);

    /* 动效 */
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
    --dur: 0.28s;

    /* 层级 */
    --z-bg: 0;
    --z-main: 1;
    --z-appbar: 60;
    --z-tabbar: 70;
    --z-fab: 80;
    --z-sheet: 100;
    --z-toast: 120;
}

/* ------------------------------------------------------------
   1b. 图标字体覆盖
   自带的 font-awesome.min.css 依次引用 eot / woff2 / woff / ttf / svg，
   但资源里只有 .woff 一个文件，其余会各产生一次 404。
   这里用同一个 family 重新声明 src，只保留真实存在的 woff，
   （后声明的 @font-face 生效）从而去掉无谓的失败请求。
   ------------------------------------------------------------ */
@font-face {
    font-family: 'FontAwesome';
    src: url('../assets/font-awesome/fonts/fontawesome-webfont.woff?v=4.7.0') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* ------------------------------------------------------------
   2. 复位与基础
   ------------------------------------------------------------ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* 移动端不显示桌面自定义光标 */
    cursor: auto;
}

html {
    /* 单一流体根字号：320px→15px，390px→16px，480px 以上→17px
       全站尺寸用 rem 表达，从而一次性适配各种分辨率，无需断点堆叠 */
    font-size: clamp(15px, 4.1vw, 17px);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC',
        'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-base);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    overscroll-behavior-y: none;
}

body.no-scroll {
    overflow: hidden;
    touch-action: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

button {
    /* 去掉移动端 300ms 点击延迟与双击缩放 */
    touch-action: manipulation;
}

ul,
ol {
    list-style: none;
}

[hidden] {
    display: none !important;
}

:focus-visible {
    outline: 2px solid var(--grad-purple);
    outline-offset: 2px;
    border-radius: 6px;
}

/* 滚动条在移动端隐藏 */
::-webkit-scrollbar {
    width: 0;
    height: 0;
}

/* ------------------------------------------------------------
   3. 背景层（纯渐变，不用 filter: blur，移动端 GPU 开销更低）
   ------------------------------------------------------------ */
.app-bg {
    position: fixed;
    inset: 0;
    z-index: var(--z-bg);
    pointer-events: none;
    background:
        radial-gradient(ellipse 78% 52% at 8% 12%, rgba(255, 107, 157, 0.16), transparent 70%),
        radial-gradient(ellipse 70% 50% at 96% 22%, rgba(196, 77, 255, 0.14), transparent 70%),
        radial-gradient(ellipse 76% 46% at 46% 84%, rgba(77, 208, 255, 0.14), transparent 70%),
        radial-gradient(ellipse 60% 40% at 88% 96%, rgba(77, 255, 184, 0.12), transparent 70%),
        var(--bg-base);
}

/* 单层缓慢漂移的液态光斑 */
.app-bg::after {
    content: '';
    position: absolute;
    top: -18%;
    left: -18%;
    width: 136%;
    height: 136%;
    background:
        radial-gradient(circle 34% at 30% 34%, rgba(196, 77, 255, 0.16), transparent 62%),
        radial-gradient(circle 30% at 74% 62%, rgba(77, 208, 255, 0.15), transparent 62%),
        radial-gradient(circle 26% at 46% 82%, rgba(255, 107, 157, 0.13), transparent 62%);
    will-change: transform;
    animation: bgDrift 26s ease-in-out infinite alternate;
}

@keyframes bgDrift {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }

    50% {
        transform: translate3d(-3%, 2.5%, 0) scale(1.06);
    }

    100% {
        transform: translate3d(3%, -2%, 0) scale(1.02);
    }
}

/* ------------------------------------------------------------
   4. 页面骨架
   ------------------------------------------------------------ */
.app-main {
    position: relative;
    z-index: var(--z-main);
    /* 顶部让开 AppBar，底部让开标签栏 + 手势条 */
    padding-top: calc(var(--appbar-h) + var(--sat));
    padding-bottom: calc(var(--tabbar-h) + var(--sab) + 8px);
    padding-left: var(--sal);
    padding-right: var(--sar);
    min-height: 100vh;
    min-height: 100dvh;
}

/* 无标签栏的页面（节日页、彩蛋页、内页） */
body[data-tabbar='off'] .app-main {
    padding-bottom: calc(var(--sab) + 24px);
}

.wrap {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--pad);
}

/* ------------------------------------------------------------
   5. 顶部应用栏
   ------------------------------------------------------------ */
.appbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-appbar);
    padding-top: var(--sat);
    background: rgba(245, 240, 255, 0.72);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(1.5);
    backdrop-filter: blur(var(--blur)) saturate(1.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    transition: box-shadow var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.appbar.scrolled {
    background: rgba(245, 240, 255, 0.92);
    box-shadow: 0 2px 18px rgba(120, 80, 200, 0.1);
}

/* 顶部彩色流光分隔线 */
.appbar::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--grad-pink), var(--grad-purple), var(--grad-blue), transparent);
    background-size: 200% 100%;
    animation: flowLine 5s linear infinite;
    pointer-events: none;
}

@keyframes flowLine {
    from {
        background-position: 0% 0;
    }

    to {
        background-position: 200% 0;
    }
}

.appbar-inner {
    height: var(--appbar-h);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px;
    padding-left: max(12px, var(--sal));
    padding-right: max(12px, var(--sar));
}

.appbar-title {
    flex: 1;
    min-width: 0;
    font-family: 'ZCOOL QingKe HuangYou', 'Syne', sans-serif;
    font-size: 1.15rem;
    letter-spacing: 1px;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.appbar-logo {
    display: flex;
    align-items: baseline;
    gap: 6px;
    min-width: 0;
    flex: 1;
}

.appbar-logo .lg-cn {
    font-family: 'ZCOOL QingKe HuangYou', 'Syne', sans-serif;
    font-size: 1.22rem;
    letter-spacing: 2px;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.appbar-logo .lg-en {
    font-family: 'Syne', sans-serif;
    font-size: 0.68rem;
    letter-spacing: 1px;
    color: var(--text-light);
    white-space: nowrap;
}

/* 通用图标按钮：保证 ≥44px 触摸目标 */
.icon-btn {
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    border-radius: 14px 18px 14px 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.6);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: transform 0.2s var(--ease-spring), background 0.2s, color 0.2s;
}

.icon-btn:active {
    transform: scale(0.9);
    background: rgba(255, 255, 255, 0.85);
}

.icon-btn.accent {
    color: #fff;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    border-color: transparent;
}

/* ------------------------------------------------------------
   6. 底部标签栏
   ------------------------------------------------------------ */
.tabbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-tabbar);
    display: flex;
    align-items: stretch;
    padding-bottom: var(--sab);
    padding-left: var(--sal);
    padding-right: var(--sar);
    background: rgba(250, 247, 255, 0.86);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    backdrop-filter: blur(18px) saturate(1.6);
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 -6px 24px rgba(120, 80, 200, 0.08);
}

body[data-tabbar='off'] .tabbar {
    display: none;
}

.tab-item {
    flex: 1 1 0;
    min-width: 0;
    height: var(--tabbar-h);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    position: relative;
    color: var(--text-light);
    transition: color 0.25s var(--ease-out);
}

.tab-item i {
    font-size: 1.16rem;
    line-height: 1;
    transition: transform 0.3s var(--ease-spring);
}

.tab-item span {
    font-size: 0.64rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* 激活态：渐变文字 + 顶部指示球 */
.tab-item.active {
    color: transparent;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tab-item.active i {
    transform: translateY(-2px) scale(1.1);
}

.tab-item.active::before {
    content: '';
    position: absolute;
    top: 5px;
    width: 22px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--grad-pink), var(--grad-purple));
    box-shadow: 0 0 10px rgba(196, 77, 255, 0.6);
}

.tab-item:active i {
    transform: scale(0.88);
}

/* ------------------------------------------------------------
   7. 液态玻璃与卡片
   ------------------------------------------------------------ */
.glass {
    position: relative;
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(1.5);
    backdrop-filter: blur(var(--blur)) saturate(1.5);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-card);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
}

/* 高光描边 */
.glass::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.1) 42%, transparent 62%, rgba(255, 255, 255, 0.42));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

/* 不支持毛玻璃时提高不透明度，保证可读性 */
@supports not ((-webkit-backdrop-filter: blur(4px)) or (backdrop-filter: blur(4px))) {

    .glass,
    .appbar,
    .tabbar,
    .icon-btn,
    .sheet-panel {
        background: rgba(255, 255, 255, 0.92);
    }
}

.card {
    padding: 18px;
}

/* 可点击卡片的按压反馈（移动端用 :active 代替 :hover） */
.tap {
    transition: transform 0.22s var(--ease-spring), box-shadow 0.22s;
}

.tap:active {
    transform: scale(0.975);
}

/* ------------------------------------------------------------
   8. 区块标题
   ------------------------------------------------------------ */
.section {
    margin-bottom: 30px;
}

.section-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 18px;
}

.section-tag {
    display: inline-block;
    font-family: 'Syne', sans-serif;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--grad-purple);
    background: rgba(196, 77, 255, 0.09);
    border: 1px solid rgba(196, 77, 255, 0.22);
    border-radius: var(--r-pill);
    padding: 4px 14px;
    margin-bottom: 9px;
}

.section-title {
    font-family: 'ZCOOL QingKe HuangYou', 'Syne', sans-serif;
    font-weight: 400;
    font-size: 1.5rem;
    letter-spacing: 1.5px;
    color: var(--text-dark);
    line-height: 1.25;
}

.section-desc {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 6px;
}

/* ------------------------------------------------------------
   9. 按钮
   ------------------------------------------------------------ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 12px 24px;
    border-radius: var(--r-btn);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.2s var(--ease-spring), box-shadow 0.2s, background 0.2s;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
}

.btn:active {
    transform: scale(0.95);
}

.btn.primary {
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    color: #fff;
    box-shadow: 0 6px 20px rgba(196, 77, 255, 0.32);
}

.btn.ghost {
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.7);
    color: var(--text-dark);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.btn.line {
    border: 1px solid rgba(196, 77, 255, 0.35);
    color: var(--grad-purple);
    background: rgba(255, 255, 255, 0.5);
}

.btn.block {
    display: flex;
    width: 100%;
}

.btn.sm {
    min-height: 38px;
    padding: 8px 16px;
    font-size: 0.8rem;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    pointer-events: none;
}

/* ------------------------------------------------------------
   10. 标签 / 徽章
   ------------------------------------------------------------ */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 11px;
    border-radius: var(--r-pill);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.tag.grad {
    color: #fff;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
}

.tag.important {
    color: var(--grad-pink);
    background: rgba(255, 107, 157, 0.13);
}

.tag.info {
    color: #2f8fd8;
    background: rgba(77, 208, 255, 0.15);
}

.tag.plain {
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.7);
}

/* ------------------------------------------------------------
   11. 横向吸附滚动（轮播）
   注意：不要用负 margin 做「全出血」——那会让内容宽于视口，
   在窄屏上产生横向溢出。请把 .hscroll 直接放在 <section> 下，
   不要放进 .wrap 里。
   ------------------------------------------------------------ */
.hscroll {
    display: flex;
    gap: 13px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scroll-padding-left: var(--pad);
    padding: 4px var(--pad) 14px;
    scrollbar-width: none;
}

.hscroll>* {
    scroll-snap-align: start;
    flex: 0 0 auto;
}

.hscroll.center>* {
    scroll-snap-align: center;
}

/* 分页圆点 */
.dots {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 2px;
}

.dots i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(120, 80, 200, 0.22);
    transition: width 0.3s var(--ease-spring), background 0.3s;
}

.dots i.on {
    width: 18px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--grad-pink), var(--grad-purple));
}

/* ------------------------------------------------------------
   12. 底部弹层（Sheet）—— 移动端替代桌面弹窗
   ------------------------------------------------------------ */
.sheet {
    position: fixed;
    inset: 0;
    z-index: var(--z-sheet);
    visibility: hidden;
    pointer-events: none;
}

.sheet.open {
    visibility: visible;
    pointer-events: auto;
}

.sheet-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(28, 18, 56, 0.42);
    opacity: 0;
    transition: opacity var(--dur) var(--ease-out);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
}

.sheet.open .sheet-backdrop {
    opacity: 1;
}

.sheet-panel {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    max-height: 88vh;
    max-height: 88dvh;
    display: flex;
    flex-direction: column;
    background: rgba(250, 247, 255, 0.96);
    -webkit-backdrop-filter: blur(22px) saturate(1.5);
    backdrop-filter: blur(22px) saturate(1.5);
    border-radius: var(--r-sheet);
    border-top: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 -12px 44px rgba(70, 40, 140, 0.24);
    padding-bottom: var(--sab);
    transform: translate3d(0, 100%, 0);
    transition: transform 0.36s var(--ease-out);
    will-change: transform;
}

.sheet.open .sheet-panel {
    transform: translate3d(0, 0, 0);
}

/* 顶部拖动条 */
.sheet-grip {
    flex: 0 0 auto;
    padding: 9px 0 4px;
    display: flex;
    justify-content: center;
    touch-action: none;
    cursor: grab;
}

.sheet-grip::before {
    content: '';
    width: 38px;
    height: 4px;
    border-radius: 4px;
    background: rgba(120, 80, 200, 0.24);
}

.sheet-head {
    flex: 0 0 auto;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 6px 18px 12px;
    border-bottom: 1px solid rgba(120, 80, 200, 0.08);
}

.sheet-head .sh-main {
    flex: 1;
    min-width: 0;
}

.sheet-title {
    font-family: 'ZCOOL QingKe HuangYou', 'Syne', sans-serif;
    font-weight: 400;
    font-size: 1.22rem;
    letter-spacing: 0.5px;
    color: var(--text-dark);
    line-height: 1.3;
}

.sheet-sub {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 3px;
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

.sheet-close {
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    line-height: 1;
    color: var(--text-mid);
    background: rgba(120, 80, 200, 0.08);
    transition: transform 0.2s var(--ease-spring), background 0.2s;
}

.sheet-close:active {
    transform: scale(0.88) rotate(90deg);
    background: rgba(120, 80, 200, 0.16);
}

.sheet-body {
    flex: 1 1 auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding: 16px 18px calc(20px + var(--sab));
}

/* 全屏弹层：用于长内容（详情、历史公告） */
.sheet.fullscreen .sheet-panel {
    max-height: 100dvh;
    height: 100dvh;
    border-radius: 0;
    padding-top: var(--sat);
}

.sheet.fullscreen .sheet-body {
    padding-bottom: calc(24px + var(--sab));
}

/* 详情头图 */
.sheet-hero {
    height: 168px;
    margin: -16px -18px 14px;
    background-size: cover;
    background-position: center;
    background-color: rgba(255, 255, 255, 0.5);
}

.sheet-hero:empty {
    display: none;
}

/* 正文排版 */
.prose {
    font-size: 0.92rem;
    line-height: 1.9;
    color: var(--text-mid);
    white-space: pre-wrap;
    word-break: break-word;
}

.prose strong {
    color: var(--text-dark);
}

/* ------------------------------------------------------------
   13. 列表
   ------------------------------------------------------------ */
.list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--r-card-sm);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: transform 0.2s var(--ease-spring), background 0.2s;
}

.list-item:active {
    transform: scale(0.98);
    background: rgba(255, 255, 255, 0.8);
}

.list-item .li-icon {
    flex: 0 0 auto;
    width: 40px;
    height: 40px;
    border-radius: 13px 17px 13px 19px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: #fff;
    background: linear-gradient(135deg, var(--grad-purple), #7c3aed);
}

.list-item .li-icon.pink {
    background: linear-gradient(135deg, var(--grad-pink), #ff8e53);
}

.list-item .li-icon.blue {
    background: linear-gradient(135deg, var(--grad-blue), #3b82f6);
}

.list-item .li-icon.green {
    background: linear-gradient(135deg, var(--grad-green), #22c55e);
}

.list-item .li-main {
    flex: 1;
    min-width: 0;
}

.list-item .li-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.35;
}

.list-item .li-desc {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.list-item .li-arrow {
    flex: 0 0 auto;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ------------------------------------------------------------
   14. 时间线
   ------------------------------------------------------------ */
.timeline {
    position: relative;
    padding-left: 26px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--grad-pink), var(--grad-purple), var(--grad-blue));
    opacity: 0.5;
}

.tl-item {
    position: relative;
    margin-bottom: 14px;
}

.tl-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 20px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    border: 2.5px solid var(--bg-base);
    box-shadow: 0 0 0 3px rgba(196, 77, 255, 0.16);
}

.tl-item:last-child {
    margin-bottom: 0;
}

/* ------------------------------------------------------------
   15. 数字统计
   ------------------------------------------------------------ */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.stat-card {
    padding: 18px 14px;
    text-align: center;
    border-radius: var(--r-card-sm);
}

.stat-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 10px;
    border-radius: 13px 19px 14px 21px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: #fff;
}

.icon-pink {
    background: linear-gradient(135deg, var(--grad-pink), #ff8e53);
}

.icon-purple {
    background: linear-gradient(135deg, var(--grad-purple), #7c3aed);
}

.icon-blue {
    background: linear-gradient(135deg, var(--grad-blue), #3b82f6);
}

.icon-green {
    background: linear-gradient(135deg, var(--grad-green), #22c55e);
}

.stat-number {
    font-family: 'Syne', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple), var(--grad-blue));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.72rem;
    color: var(--text-light);
    margin-top: 4px;
    letter-spacing: 0.5px;
}

/* ------------------------------------------------------------
   16. 折叠面板（隐私政策 / 使用条款）
   ------------------------------------------------------------ */
.acc {
    border-radius: var(--r-card-sm);
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    margin-bottom: 10px;
}

.acc>summary {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 16px;
    min-height: 52px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dark);
    touch-action: manipulation;
}

.acc>summary::-webkit-details-marker {
    display: none;
}

.acc .acc-num {
    flex: 0 0 auto;
    font-family: 'Syne', sans-serif;
    font-size: 0.92rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    min-width: 22px;
}

.acc .acc-name {
    flex: 1;
    min-width: 0;
}

.acc .acc-caret {
    flex: 0 0 auto;
    color: var(--text-light);
    font-size: 0.8rem;
    transition: transform 0.28s var(--ease-spring);
}

.acc[open] .acc-caret {
    transform: rotate(180deg);
}

.acc .acc-body {
    padding: 0 16px 16px 16px;
    font-size: 0.85rem;
    line-height: 1.85;
    color: var(--text-mid);
    animation: accIn 0.26s var(--ease-out);
}

@keyframes accIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.acc .acc-body p+p {
    margin-top: 10px;
}

.acc .acc-body ul {
    margin: 8px 0 0;
    padding-left: 0;
}

.acc .acc-body li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 6px;
}

.acc .acc-body li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--grad-purple);
}

/* 目录胶囊（隐私政策快速跳转）—— 同样是全出血元素，直接放在 section 下 */
.toc-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    padding: 2px var(--pad) 12px;
    -webkit-overflow-scrolling: touch;
}

.toc-chips a {
    flex: 0 0 auto;
    padding: 7px 14px;
    border-radius: var(--r-pill);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.75);
    white-space: nowrap;
}

.toc-chips a.on {
    color: #fff;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    border-color: transparent;
}

/* ------------------------------------------------------------
   17. 表单
   ------------------------------------------------------------ */
.field {
    margin-bottom: 14px;
}

.field-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-mid);
    margin-bottom: 6px;
}

.input,
.textarea,
.select {
    width: 100%;
    /* ≥16px 可避免 iOS 聚焦时页面自动放大 */
    font-size: max(16px, 0.95rem);
    padding: 12px 14px;
    border-radius: 14px 20px 15px 22px;
    background: rgba(255, 255, 255, 0.66);
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: var(--text-dark);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.textarea {
    min-height: 96px;
    resize: vertical;
    line-height: 1.7;
}

.input::placeholder,
.textarea::placeholder {
    color: var(--text-light);
}

.input:focus,
.textarea:focus {
    border-color: rgba(196, 77, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(196, 77, 255, 0.12);
}

.input.invalid,
.textarea.invalid {
    border-color: rgba(255, 71, 87, 0.6);
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.1);
    animation: shake 0.34s;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

.field-error {
    font-size: 0.72rem;
    color: #ff4757;
    margin-top: 5px;
    min-height: 1em;
}

/* 开关 */
.switch {
    position: relative;
    width: 46px;
    height: 27px;
    border-radius: 27px;
    background: rgba(120, 80, 200, 0.2);
    transition: background 0.25s;
    flex: 0 0 auto;
}

.switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 21px;
    height: 21px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.25s var(--ease-spring);
}

.switch.on {
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
}

.switch.on::after {
    transform: translateX(19px);
}

/* ------------------------------------------------------------
   18. 浮动按钮 / 悬浮反馈入口
   ------------------------------------------------------------ */
.fab {
    position: fixed;
    right: max(14px, var(--sar));
    bottom: calc(var(--tabbar-h) + var(--sab) + 14px);
    z-index: var(--z-fab);
    width: 52px;
    height: 52px;
    border-radius: 18px 24px 18px 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: #fff;
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple));
    box-shadow: 0 8px 24px rgba(196, 77, 255, 0.42);
    transition: transform 0.24s var(--ease-spring);
}

.fab:active {
    transform: scale(0.9);
}

.fab.pulse::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 2px solid rgba(196, 77, 255, 0.55);
    animation: fabPulse 2.2s ease-out infinite;
}

@keyframes fabPulse {
    0% {
        transform: scale(1);
        opacity: 0.85;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

body[data-tabbar='off'] .fab {
    bottom: calc(var(--sab) + 18px);
}

/* ------------------------------------------------------------
   19. 轻提示
   ------------------------------------------------------------ */
.toast {
    position: fixed;
    left: 50%;
    bottom: calc(var(--tabbar-h) + var(--sab) + 26px);
    z-index: var(--z-toast);
    transform: translate3d(-50%, 14px, 0);
    max-width: min(88vw, 340px);
    padding: 11px 20px;
    border-radius: var(--r-pill);
    font-size: 0.82rem;
    font-weight: 500;
    color: #fff;
    text-align: center;
    background: rgba(26, 21, 48, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 26px rgba(30, 18, 60, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.26s, transform 0.26s var(--ease-spring), visibility 0.26s;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translate3d(-50%, 0, 0);
}

/* ------------------------------------------------------------
   19b. 页脚 / 回到顶部
   ------------------------------------------------------------ */
.page-footer {
    margin-top: 34px;
    padding: 20px var(--pad) 8px;
    text-align: center;
    border-top: 1px solid rgba(120, 80, 200, 0.1);
    position: relative;
}

/* 页脚顶部彩色流光 */
.page-footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--grad-pink), var(--grad-purple), var(--grad-blue), var(--grad-green), transparent);
    background-size: 200% 100%;
    animation: flowLine 7s linear infinite;
    opacity: 0.7;
}

.pf-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 18px;
    margin-bottom: 14px;
}

.pf-nav a {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-mid);
    padding: 4px 2px;
    position: relative;
    transition: color 0.22s;
}

.pf-nav a.on,
.pf-nav a:active {
    color: var(--grad-purple);
}

.pf-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1.5px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--grad-pink), var(--grad-purple));
    transform: scaleX(0);
    transition: transform 0.26s var(--ease-out);
}

.pf-nav a.on::after {
    transform: scaleX(1);
}

.pf-copy {
    font-size: 0.74rem;
    color: var(--text-light);
    -webkit-user-select: none;
    user-select: none;
    padding: 4px;
    display: inline-block;
}

.pf-runtime {
    font-family: 'Syne', sans-serif;
    font-size: 0.68rem;
    letter-spacing: 0.6px;
    color: var(--text-light);
    margin-top: 4px;
    opacity: 0.9;
}

.back-top {
    position: fixed;
    left: max(14px, var(--sal));
    bottom: calc(var(--tabbar-h) + var(--sab) + 14px);
    z-index: var(--z-fab);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--text-mid);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.85);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    box-shadow: 0 6px 20px rgba(120, 80, 200, 0.18);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px) scale(0.85);
    transition: opacity 0.26s, transform 0.26s var(--ease-spring), visibility 0.26s;
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.back-top:active {
    transform: scale(0.88);
}

body[data-tabbar='off'] .back-top {
    bottom: calc(var(--sab) + 18px);
}

/* ------------------------------------------------------------
   20. 空态 / 加载
   ------------------------------------------------------------ */
.empty {
    text-align: center;
    padding: 40px 18px;
    color: var(--text-light);
}

.empty i {
    font-size: 2.4rem;
    opacity: 0.45;
    margin-bottom: 12px;
    display: block;
}

.empty p {
    font-size: 0.85rem;
}

.skeleton {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.4) 25%, rgba(255, 255, 255, 0.75) 37%, rgba(255, 255, 255, 0.4) 63%);
    background-size: 400% 100%;
    animation: shimmer 1.3s infinite linear;
    border-radius: 12px;
}

@keyframes shimmer {
    from {
        background-position: 100% 50%;
    }

    to {
        background-position: 0 50%;
    }
}

.spinner {
    display: inline-block;
    width: 17px;
    height: 17px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 滚动进场动画
   只在 JS 正常运行时才隐藏内容（<html> 上的 .has-js 由页面头部内联脚本添加），
   这样禁用 JS 或脚本出错时，内容依然完整可见，不会白屏。 */
.has-js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}

.has-js .reveal.in {
    opacity: 1;
    transform: none;
}

/* ------------------------------------------------------------
   21. 工具类
   ------------------------------------------------------------ */
.row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.between {
    justify-content: space-between;
}

.center {
    justify-content: center;
}

.col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.grow {
    flex: 1;
    min-width: 0;
}

.mt-0 {
    margin-top: 0;
}

.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

.mt-3 {
    margin-top: 24px;
}

.mb-1 {
    margin-bottom: 8px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.muted {
    color: var(--text-light);
}

.small {
    font-size: 0.76rem;
}

.center-text {
    text-align: center;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.grad-text {
    background: linear-gradient(135deg, var(--grad-pink), var(--grad-purple), var(--grad-blue));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradShift 6s ease infinite;
}

@keyframes gradShift {

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

    50% {
        background-position: 100% 50%;
    }
}

/* ------------------------------------------------------------
   22. 极窄屏（折叠屏外屏 280-340px）微调
   ------------------------------------------------------------ */
@media (max-width: 340px) {
    :root {
        --pad: 13px;
        --gap: 12px;
    }

    .stat-grid {
        gap: 9px;
    }

    .tab-item span {
        font-size: 0.6rem;
    }

    .appbar-logo .lg-en {
        display: none;
    }
}

/* 平板竖屏：内容居中收窄，避免拉伸 */
@media (min-width: 600px) {
    :root {
        --pad: 22px;
    }
}

/* 横屏矮屏：压缩纵向留白 */
@media (max-height: 460px) and (orientation: landscape) {
    :root {
        --appbar-h: 46px;
        --tabbar-h: 50px;
    }

    .tab-item i {
        font-size: 1rem;
    }

    .tab-item span {
        font-size: 0.58rem;
    }
}

/* ------------------------------------------------------------
   23. 无障碍：尊重系统「减弱动态效果」
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }

    .app-bg::after {
        animation: none;
    }

    .has-js .reveal {
        opacity: 1;
        transform: none;
    }
}