/* xr2 — iOS 企业白风格 / Apple 系统质感 */
html {
    color-scheme: light;
}

:root {
    --ios-bg: #f5f5f7;
    --ios-surface: #ffffff;
    --ios-surface-2: #fbfbfd;
    --ios-border: rgba(120, 120, 128, 0.16);
    --ios-border-strong: rgba(120, 120, 128, 0.24);
    --ios-text: #1d1d1f;
    --ios-text-secondary: #6e6e73;
    --ios-text-tertiary: #8e8e93;
    --ios-blue: #0071e3;
    --ios-blue-hover: #0077ed;
    --ios-blue-tint: rgba(0, 113, 227, 0.10);
    --ios-green: #34c759;
    --ios-green-tint: rgba(52, 199, 89, 0.10);
    --ios-orange: #ff9500;
    --ios-orange-tint: rgba(255, 149, 0, 0.10);
    --ios-purple: #5856d6;
    --ios-purple-tint: rgba(88, 86, 214, 0.10);
    --ios-teal: #5ac8fa;
    --ios-teal-tint: rgba(90, 200, 250, 0.10);
    --ios-red: #ff3b30;
    --ios-radius: 14px;
    --ios-radius-lg: 18px;
    --ios-radius-pill: 9999px;
    --ios-shadow: 0 1px 2px rgba(0, 0, 0, 0.02), 0 4px 12px rgba(0, 0, 0, 0.04);
    --ios-shadow-elevated: 0 4px 24px rgba(0, 0, 0, 0.08);
    --ios-font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.xr2 {
    margin: 0;
    min-height: 100vh;
    font-family: var(--ios-font);
    color: var(--ios-text);
    background: var(--ios-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.xr2-bg {
    display: none;
}

.xr2-wrap {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 620px;
    margin: 0 auto;
    padding: 40px 20px 64px;
}

/* —— 顶区 / Hero —— */
.xr2-hero {
    width: 100%;
    text-align: left;
    margin-bottom: 32px;
}

.xr2-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--ios-radius-pill);
    font-size: 12px;
    font-weight: 500;
    color: var(--ios-text-secondary);
    background: rgba(118, 118, 128, 0.08);
    margin-bottom: 16px;
    letter-spacing: 0.01em;
}

.xr2-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ios-green);
}

.xr2-title {
    margin: 0 0 10px;
    font-size: clamp(2rem, 6vw, 2.75rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--ios-text);
}

.xr2-title .xr2-gradient {
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
    color: var(--ios-text);
}

.xr2-trustline {
    margin: 0 0 22px;
    max-width: 100%;
    font-size: 14px;
    line-height: 1.55;
    color: var(--ios-text-secondary);
}

/* 状态卡 */
.xr2-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.xr2-stats-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: var(--ios-radius);
    background: var(--ios-surface);
    border: 1px solid var(--ios-border);
    box-shadow: var(--ios-shadow);
}

.xr2-stat-pill--wide {
    min-width: auto;
    justify-content: flex-start;
}

.xr2-stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--ios-text-secondary);
    padding: 0;
}

.xr2-stat-pill .ri {
    font-size: 18px;
    color: var(--ios-blue);
}

.xr2-stat-pill strong {
    font-weight: 600;
    color: var(--ios-text);
}

.xr2-stats-sep {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--ios-text-tertiary);
    opacity: 0.5;
    margin: 0 6px;
}

.xr2-num {
    color: var(--ios-text);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* 数据小条 */
.xr2-stats-row > div {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* —— 按钮 —— */
.xr2-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: flex-start;
    margin-bottom: 6px;
}

.xr2-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 13px 22px;
    border-radius: var(--ios-radius-pill);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform .12s ease, background .15s ease, box-shadow .15s ease;
    cursor: pointer;
}

.xr2-btn:active {
    transform: scale(0.97);
}

.xr2-btn--primary {
    background: var(--ios-blue);
    color: #fff;
    box-shadow: 0 4px 14px rgba(0, 113, 227, 0.24);
}

.xr2-btn--primary:hover {
    background: var(--ios-blue-hover);
    box-shadow: 0 6px 18px rgba(0, 113, 227, 0.28);
}

.xr2-btn--ghost {
    background: rgba(118, 118, 128, 0.08);
    color: var(--ios-blue);
    border-color: transparent;
}

.xr2-btn--ghost:hover {
    background: rgba(118, 118, 128, 0.12);
}

.xr2-btn--soft {
    background: var(--ios-blue-tint);
    color: var(--ios-blue);
    border-color: rgba(0, 113, 227, 0.14);
}

.xr2-btn--soft:hover {
    background: rgba(0, 113, 227, 0.14);
}

/* —— 主内容区 —— */
.xr2-main {
    width: 100%;
}

.xr2-main-head {
    margin: 28px 0 10px;
    text-align: left;
    padding: 0 4px;
}

.xr2-main-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--ios-text-secondary);
    text-transform: uppercase;
}

/* 常用功能：iOS 分组列表 */
.xr2-quick {
    width: 100%;
    margin-bottom: 6px;
}

.xr2-quick-row {
    display: flex;
    flex-direction: column;
    background: var(--ios-surface);
    border-radius: var(--ios-radius-lg);
    border: 1px solid var(--ios-border);
    box-shadow: var(--ios-shadow);
    overflow: hidden;
}

.xr2-quick-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    text-decoration: none;
    color: inherit;
    transition: background .12s ease;
    position: relative;
}

.xr2-quick-item:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 56px;
    right: 0;
    bottom: 0;
    height: 1px;
    background: var(--ios-border);
}

.xr2-quick-item:hover {
    background: rgba(118, 118, 128, 0.04);
}

.xr2-quick-ico {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    background: var(--ios-blue-tint);
    color: var(--ios-blue);
}

.xr2-quick-item:nth-child(2) .xr2-quick-ico {
    background: var(--ios-green-tint);
    color: var(--ios-green);
}

.xr2-quick-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.xr2-quick-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--ios-text);
    letter-spacing: -0.01em;
}

.xr2-quick-sub {
    font-size: 13px;
    color: var(--ios-text-secondary);
    line-height: 1.45;
}

.xr2-quick-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 2px 7px;
    font-size: 10px;
    font-weight: 700;
    vertical-align: middle;
    color: var(--ios-green);
    background: var(--ios-green-tint);
    border-radius: var(--ios-radius-pill);
}

.xr2-quick-go {
    flex-shrink: 0;
    font-size: 18px;
    color: var(--ios-text-tertiary);
}

/* 服务说明：iOS 小卡片网格 */
.xr2-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
}

@media (max-width: 560px) {
    .xr2-features {
        grid-template-columns: 1fr;
    }
}

.xr2-feature {
    padding: 18px;
    border-radius: var(--ios-radius-lg);
    background: var(--ios-surface);
    border: 1px solid var(--ios-border);
    text-align: left;
    transition: transform .12s ease, box-shadow .15s ease;
    box-shadow: var(--ios-shadow);
}

.xr2-feature:hover {
    box-shadow: var(--ios-shadow-elevated);
}

.xr2-feature-ico {
    width: 40px;
    height: 40px;
    margin-bottom: 14px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ios-blue-tint);
    color: var(--ios-blue);
}

.xr2-feature:nth-child(2) .xr2-feature-ico { background: var(--ios-purple-tint); color: var(--ios-purple); }
.xr2-feature:nth-child(3) .xr2-feature-ico { background: var(--ios-orange-tint); color: var(--ios-orange); }
.xr2-feature:nth-child(4) .xr2-feature-ico { background: var(--ios-teal-tint); color: var(--ios-teal); }
.xr2-feature:nth-child(5) .xr2-feature-ico { background: var(--ios-green-tint); color: var(--ios-green); }

.xr2-feature-ico .ri {
    font-size: 20px;
}

.xr2-feature h3 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--ios-text);
    letter-spacing: -0.01em;
}

.xr2-feature p {
    margin: 0;
    font-size: 13px;
    line-height: 1.55;
    color: var(--ios-text-secondary);
}

/* —— 页脚 —— */
.xr2-footer {
    margin-top: auto;
    padding-top: 40px;
    text-align: center;
}

.xr2-footer-beian {
    margin: 0 0 6px;
}

.xr2-footer-beian a {
    color: var(--ios-text-tertiary);
    text-decoration: none;
    font-size: 12px;
}

.xr2-footer-beian a:hover {
    color: var(--ios-blue);
}

.xr2-footer-copy {
    margin: 0;
    font-size: 12px;
    color: var(--ios-text-tertiary);
}

/* —— 访问统计抽屉（左侧展开） —— */
.xr2-drawer {
    position: fixed;
    top: 35%;
    left: -200px;
    width: 200px;
    transform: translateY(-50%);
    z-index: 9999;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border: 1px solid var(--ios-border);
    border-radius: 0 16px 16px 0;
    transition: left .3s cubic-bezier(.25, .8, .25, 1);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.06);
}

.xr2-drawer.is-open {
    left: 0;
}

.xr2-drawer-tab {
    position: absolute;
    top: 50%;
    right: -36px;
    transform: translateY(-50%);
    width: 36px;
    height: 60px;
    border: 1px solid var(--ios-border);
    border-left: none;
    border-radius: 0 10px 10px 0;
    background: rgba(255, 255, 255, 0.9);
    color: var(--ios-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    font-weight: 700;
    user-select: none;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.04);
}

.xr2-drawer-tab:hover {
    background: rgba(255, 255, 255, 1);
}

.xr2-drawer iframe {
    display: block;
    width: 100%;
    height: 360px;
    border: none;
    border-radius: 0 16px 16px 0;
}

@media (max-width: 768px) {
    .xr2-wrap {
        padding: 32px 16px 48px;
    }

    .xr2-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .xr2-btn {
        width: 100%;
    }

    .xr2-drawer {
        left: -170px;
        width: 170px;
    }

    .xr2-drawer iframe {
        height: 320px;
    }
}

/* —— iOS 企业级动画 —— */
@media (prefers-reduced-motion: no-preference) {
    /* 顶区载入分层上浮 */
    .xr2-enter {
        opacity: 0;
        transform: translateY(18px);
        animation: xr2-rise .62s cubic-bezier(.22, 1, .36, 1) forwards;
        will-change: opacity, transform;
    }
    .xr2-badge.xr2-enter { animation-delay: .05s; }
    .xr2-title.xr2-enter { animation-delay: .12s; }
    .xr2-trustline.xr2-enter { animation-delay: .19s; }
    .xr2-stats.xr2-enter { animation-delay: .26s; }
    .xr2-actions.xr2-enter { animation-delay: .33s; }

    /* 滚动进入揭示 */
    .xr2-reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity .6s cubic-bezier(.22, 1, .36, 1), transform .6s cubic-bezier(.22, 1, .36, 1);
        will-change: opacity, transform;
    }
    .xr2-reveal.in {
        opacity: 1;
        transform: none;
    }

    /* 卡片网格错峰揭示 */
    .xr2-reveal-group .xr2-feature {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity .55s cubic-bezier(.22, 1, .36, 1), transform .55s cubic-bezier(.22, 1, .36, 1);
        will-change: opacity, transform;
    }
    .xr2-reveal-group.in .xr2-feature { opacity: 1; transform: none; }
    .xr2-reveal-group.in .xr2-feature:nth-child(1) { transition-delay: .04s; }
    .xr2-reveal-group.in .xr2-feature:nth-child(2) { transition-delay: .10s; }
    .xr2-reveal-group.in .xr2-feature:nth-child(3) { transition-delay: .16s; }
    .xr2-reveal-group.in .xr2-feature:nth-child(4) { transition-delay: .22s; }
    .xr2-reveal-group.in .xr2-feature:nth-child(5) { transition-delay: .28s; }

    /* 按钮点击弹簧反馈 */
    .xr2-btn { transition: transform .16s cubic-bezier(.34, 1.56, .64, 1), background .15s ease, box-shadow .15s ease; }
    .xr2-btn:active { transform: scale(.955); }

    /* 卡片悬停微弹 */
    .xr2-feature:hover { transform: translateY(-3px); }
    .xr2-quick-item { transition: background .12s ease, border-color .12s ease, transform .16s ease; }
    .xr2-quick-item:hover { transform: translateX(3px); }

    /* 抽屉把手呼吸提示 */
    .xr2-drawer-tab { animation: xr2-breathe 3.4s ease-in-out infinite; }
}

@keyframes xr2-rise {
    from { opacity: 0; transform: translateY(18px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes xr2-breathe {
    0%, 100% { box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.04); }
    50%      { box-shadow: 2px 2px 18px rgba(0, 113, 227, 0.20); }
}

/* 数字滚动增长 */
.xr2-count {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}