/* =============================================================
   源创阁首页 · 深色玻璃主题
   设计原则：材质 > 特效；曲线和时长只用 token，不允许自定义
   ============================================================= */

:root {
    /* ---- 底色 ---- */
    --home-bg:      #070a12;
    --home-bg-lift: #0b1020;

    /* ---- 玻璃材质 ---- */
    --home-glass:   rgba(255, 255, 255, 0.045);
    --home-glass-2: rgba(255, 255, 255, 0.022);
    --home-line-top: rgba(255, 255, 255, 0.20);
    --home-line-bot: rgba(255, 255, 255, 0.02);
    --home-line:    rgba(255, 255, 255, 0.07);

    /* ---- 文字 ---- */
    --home-ink:     #eef2fa;
    --home-muted:   rgba(233, 239, 250, 0.62);
    --home-dim:     rgba(233, 239, 250, 0.40);

    /* ---- 品牌色 ---- */
    --home-blue:    #2f6bff;
    --home-teal:    #14b8a6;
    --home-violet:  #6d43ff;
    --home-navy:    #0b2a5b;
    --home-white:   #ffffff;

    /* ---- 动效 token ---- */
    --ease:      cubic-bezier(.16, 1, .3, 1);
    --ease-soft: cubic-bezier(.25, 1, .5, 1);
    --dur-fast:  160ms;
    --dur-base:  280ms;
    --dur-slow:  560ms;

    --home-shell: 1180px;
    --home-radius: 16px;

    /* 分类主题色默认值，PHP 按分类逐个覆写 */
    --cat: 47 107 255;
}

/* 跨页过渡：首页 → 详情页，不支持的浏览器自动无视 */
@view-transition { navigation: auto; }

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    overflow-x: hidden;
    color: var(--home-ink);
    font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    -webkit-font-smoothing: antialiased;

    /* 光晕直接画进 body 的基础背景层。
       早先的做法是三个 40vw+ 的 <span> 加 filter: blur(100px) 再持续位移，
       实测把整页压到 ~5fps（帧间隔 183ms）—— 全屏半透明合成层会让屏幕上
       任何移动都触发整屏混合。画进背景层后每帧成本为零，实测 0 掉帧。 */
    background-color: var(--home-bg);
    background-image:
        radial-gradient(60vw 50vw at 18% 4%,  rgba(47, 107, 255, .30), transparent 62%),
        radial-gradient(52vw 44vw at 88% 20%, rgba(109, 67, 255, .22), transparent 64%),
        radial-gradient(56vw 46vw at 44% 62%, rgba(20, 184, 166, .14), transparent 66%);
    background-repeat: no-repeat;
}

/* 噪点：纯色底和"材质"的分界线，只要 4% */
body::after {
    content: '';
    position: fixed;
    z-index: 9998;
    inset: 0;
    opacity: .04;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

.shell { width: min(calc(100% - 48px), var(--home-shell)); margin: 0 auto; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    white-space: nowrap;
}

/* =============================================================
   背景层
   ============================================================= */
.home-grid {
    position: fixed;
    z-index: -1;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 68px 68px;
    -webkit-mask-image: radial-gradient(ellipse 85% 55% at 50% 0%, #000 25%, transparent 78%);
            mask-image: radial-gradient(ellipse 85% 55% at 50% 0%, #000 25%, transparent 78%);
}

/* =============================================================
   指针样式
   这里原本是 JS 双层跟随光标（实心点 + lerp 圆环）。跟随光标天然比系统
   指针慢半拍，还要常驻 requestAnimationFrame；改回原生指针，只换一套
   贴合深色主题的箭头：零 JS、零每帧开销，不存在跟不上手的问题。
   ============================================================= */
:root {
    --cursor-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M4 3 L4 18.2 L8.1 14.4 L10.8 20.2 L13.4 19 L10.9 13.5 L15.8 13.5 Z' fill='%23eef2fa' stroke='%23070a12' stroke-width='1.4' stroke-linejoin='round'/%3E%3C/svg%3E") 4 3;
    --cursor-arrow-active: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M4 3 L4 18.2 L8.1 14.4 L10.8 20.2 L13.4 19 L10.9 13.5 L15.8 13.5 Z' fill='%235b90ff' stroke='%23eef2fa' stroke-width='1.4' stroke-linejoin='round'/%3E%3C/svg%3E") 4 3;
}

/* 浅色描边 + 深色描边互补，深色页面和亮色广告图上都看得清 */
body { cursor: var(--cursor-arrow), default; }

/* 可交互元素换成品牌蓝箭头：保留「这里能点」的提示，
   又不会跳成风格不搭的系统小手 */
a, button, [role="button"], summary, label,
.product-card,
.home-carousel-slide,
.home-carousel-nav,
.home-carousel-dots button {
    cursor: var(--cursor-arrow-active), pointer;
}

/* 输入类保持文本语义 */
input, textarea { cursor: text; }

/* =============================================================
   入场动效
   ============================================================= */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition:
        opacity var(--dur-slow) var(--ease),
        transform var(--dur-slow) var(--ease);
    transition-delay: calc(var(--i, 0) * 55ms);
}

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

.ch { display: inline-block; overflow: hidden; vertical-align: bottom; }

.ch-in {
    display: inline-block;
    transform: translateY(105%);
    transition: transform var(--dur-slow) var(--ease);
    transition-delay: calc(var(--ci, 0) * 34ms);
}

[data-split].is-in .ch-in { transform: none; }

/* =============================================================
   顶栏
   ============================================================= */
.site-header {
    position: sticky;
    z-index: 60;
    top: 0;
    border-bottom: 1px solid var(--home-line);
    /* backdrop-filter 只给顶栏和弹窗，不给产品卡片 —— 低端安卓性能红线。
       模糊半径压到 10px 且不加 saturate()：实测 18px+saturate 在滚动时
       会掉 7/145 帧，10px 无 saturate 是 0 掉帧，玻璃感肉眼没差别。 */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(7,10,18,.62);
    transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}

.site-header.is-stuck {
    background: rgba(7,10,18,.88);
    border-bottom-color: rgba(255,255,255,.1);
}

.header-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    height: 64px;
    align-items: center;
}

.brand {
    display: inline-flex;
    min-width: 0;
    align-items: center;
    justify-self: start;
    gap: 11px;
}

.brand-mark {
    position: relative;
    display: grid;
    width: 40px; height: 40px;
    flex: 0 0 auto;
    place-items: center;
}

.brand-mark::after {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    background: rgba(47,107,255,.55);
    filter: blur(11px);
    animation: home-brand-aura 2.6s ease-in-out infinite;
}

@keyframes home-brand-aura {
    0%, 100% { opacity: .3; transform: scale(.8); }
    50%      { opacity: .75; transform: scale(1.25); }
}

.brand-mark img {
    position: relative;
    z-index: 1;
    width: 40px; height: 40px;
    object-fit: contain;
}

.brand-copy { display: grid; min-width: 0; gap: 2px; }

.brand-copy strong {
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: -.01em;
    white-space: nowrap;
}

.brand-copy small {
    color: var(--home-dim);
    font-size: 9.5px;
    font-weight: 600;
    letter-spacing: .18em;
}

.header-contact {
    display: inline-flex;
    height: 40px;
    align-items: center;
    justify-self: end;
    gap: 9px;
    padding: 4px 14px 4px 5px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    background: rgba(255,255,255,.05);
    color: var(--home-ink);
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
    transition:
        border-color var(--dur-base) var(--ease),
        background var(--dur-base) var(--ease),
        box-shadow var(--dur-base) var(--ease);
}

.header-contact:hover {
    border-color: rgba(47,107,255,.5);
    background: rgba(47,107,255,.14);
    box-shadow: 0 8px 26px rgba(47,107,255,.28);
}

.header-contact:focus-visible {
    outline: 2px solid #6ea2ff;
    outline-offset: 3px;
}

.header-contact-icon {
    display: grid;
    width: 30px; height: 30px;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(145deg, #4b84ff, #1d49c9);
    box-shadow: 0 4px 12px rgba(47,107,255,.45);
    color: #fff;
}

.header-contact-icon svg {
    width: 17px; height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.55;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.header-contact-label { white-space: nowrap; }

.header-contact-arrow {
    color: var(--home-muted);
    font-size: 13px;
    transition: transform var(--dur-base) var(--ease);
}

.header-contact:hover .header-contact-arrow { transform: translateX(3px); }

/* =============================================================
   品牌条
   ============================================================= */
.home-brandline { padding: 54px 0 26px; }

.home-brandline-inner {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.home-brandline h1 {
    margin: 0;
    font-size: clamp(30px, 3.6vw, 46px);
    font-weight: 600;
    letter-spacing: -.045em;
    line-height: 1.24;
}

.home-brandline h1 em {
    font-style: normal;
    background: linear-gradient(100deg, #6ea2ff 8%, #38e0c8 52%, #9d7bff 96%);
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
}

.home-brandline-stats {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 8px;
    color: var(--home-muted);
    font-size: 12.5px;
}

.home-brandline-stats b {
    color: var(--home-ink);
    font-size: 17px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.home-brandline-stats i { width: 1px; height: 13px; background: rgba(255,255,255,.16); }

/* =============================================================
   轮播
   ============================================================= */
.home-poster { padding: 6px 0 40px; }

.home-carousel {
    position: relative;
    width: 100%;
    min-height: 210px;
    max-height: 300px;
    aspect-ratio: 3.4 / 1;
    overflow: hidden;
    border-radius: var(--home-radius);
    background: var(--home-bg-lift);
    box-shadow: 0 26px 70px rgba(0,0,0,.55);
}

/* 亮色广告图必须收边，否则像贴在深色底上的膏药 */
.home-carousel::after {
    content: '';
    position: absolute;
    z-index: 4;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,.12),
        inset 0 0 70px rgba(7,10,18,.55);
}

.home-carousel-track,
.home-carousel-slide { position: absolute; inset: 0; }

.home-carousel-slide {
    z-index: 0;
    display: block;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease), visibility var(--dur-slow);
}

.home-carousel-slide.is-active {
    z-index: 1;
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.home-carousel-slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.home-carousel--slide .home-carousel-slide { transform: translateX(8%); }
.home-carousel--slide .home-carousel-slide.is-active { transform: translateX(0); }
.home-carousel--slide .home-carousel-slide.is-previous { transform: translateX(-8%); }

.home-carousel--zoom .home-carousel-slide { transform: scale(1.035); }
.home-carousel--zoom .home-carousel-slide.is-active { transform: scale(1); }

.home-carousel--flip,
.home-carousel--cube { perspective: 1200px; }

.home-carousel--flip .home-carousel-slide {
    transform: rotateX(-8deg) scale(.98);
    transform-origin: center bottom;
}

.home-carousel--flip .home-carousel-slide.is-active,
.home-carousel--cube .home-carousel-slide.is-active { transform: none; }

.home-carousel--cube .home-carousel-slide { transform: rotateY(8deg) scale(.98); }

.home-carousel-nav {
    position: absolute;
    z-index: 5;
    top: 50%;
    display: grid;
    width: 38px; height: 38px;
    place-items: center;
    border: 1px solid rgba(255,255,255,.3);
    border-radius: 50%;
    background: rgba(8,20,39,.52);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #fff;
    cursor: pointer;
    opacity: 0;
    transform: translateY(-50%);
    transition: background var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.home-carousel-nav--prev { left: 14px; }
.home-carousel-nav--next { right: 14px; }

.home-carousel:hover .home-carousel-nav,
.home-carousel:focus-within .home-carousel-nav { opacity: 1; }

.home-carousel-nav:hover { background: rgba(47,99,235,.9); }

.home-carousel-dots {
    position: absolute;
    z-index: 5;
    bottom: 12px;
    left: 50%;
    display: flex;
    gap: 7px;
    padding: 6px 8px;
    border-radius: 999px;
    background: rgba(8,20,39,.4);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transform: translateX(-50%);
}

.home-carousel-dots button {
    width: 7px; height: 7px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255,255,255,.55);
    cursor: pointer;
    transition: background var(--dur-base) var(--ease), width var(--dur-base) var(--ease);
}

.home-carousel-dots button[aria-current="true"] { width: 20px; background: #fff; }

.home-carousel-slide:focus-visible,
.home-carousel-nav:focus-visible,
.home-carousel-dots button:focus-visible {
    outline: 2px solid var(--home-teal);
    outline-offset: -3px;
}

/* =============================================================
   产品区
   ============================================================= */
.products { padding: 8px 0 90px; }

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 34px;
}

.section-heading p {
    margin: 0 0 8px;
    color: var(--home-blue);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .2em;
}

.section-heading h2 {
    margin: 0;
    font-size: 34px;
    font-weight: 600;
    letter-spacing: -.045em;
}

.section-heading > span { padding-bottom: 6px; color: var(--home-muted); font-size: 12.5px; }
.section-heading > span b { color: var(--home-ink); font-weight: 700; font-variant-numeric: tabular-nums; }

.category-modules { display: grid; gap: 46px; }

/* 分类容器不再是白卡套白卡，直接落在深底上 */
.category-module { scroll-margin-top: 86px; }

.category-module-head {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
    padding-left: 17px;
}

/* 分类色条：发光渐变竖条，比 1px 边框有分量 */
.category-module-head::before {
    content: '';
    position: absolute;
    left: 0; top: 3px; bottom: 5px;
    width: 4px;
    border-radius: 999px;
    background: linear-gradient(180deg, rgb(var(--cat)), rgba(var(--cat), .12));
    box-shadow: 0 0 18px rgba(var(--cat), .65);
}

.category-module-copy { min-width: 0; }

.category-module-copy h3 {
    margin: 0;
    font-size: 21px;
    font-weight: 600;
    letter-spacing: -.03em;
}

.category-module-copy p { margin: 5px 0 0; color: var(--home-muted); font-size: 12px; }

.category-module-count {
    flex: 0 0 auto;
    padding-bottom: 3px;
    color: var(--home-muted);
    font-size: 12px;
}

.category-module-count strong {
    margin-right: 2px;
    color: var(--home-ink);
    font-size: 15px;
    font-variant-numeric: tabular-nums;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    perspective: 1400px;
}

/* ---- 产品卡：上下结构，有无「详情」结构统一 ---- */
.product-card {
    position: relative;
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 12px;
    padding: 18px;
    isolation: isolate;
    border: 1px solid transparent;
    border-radius: var(--home-radius);
    /* 渐变边框上亮下暗，模拟受光。不用 backdrop-filter */
    background:
        linear-gradient(180deg, var(--home-glass), var(--home-glass-2)) padding-box,
        linear-gradient(150deg, var(--home-line-top), rgba(255,255,255,.05) 38%, var(--home-line-bot) 72%) border-box;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,.07),
        0 2px 10px rgba(0,0,0,.32);
    transform:
        rotateX(var(--rx, 0deg))
        rotateY(var(--ry, 0deg))
        translateY(var(--ty, 0px));
    transform-style: preserve-3d;
    transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

/* 悬停点亮的分类色渐变边框 */
.product-card::after {
    content: '';
    position: absolute;
    z-index: 3;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    pointer-events: none;
    background: linear-gradient(150deg, rgba(var(--cat), .85), rgba(var(--cat), .18) 45%, transparent 76%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease);
}

/* 跟随鼠标的 spotlight。z-index:-1 让它落在卡片背景之上、内容之下，
   这样卡内元素都不必再设 position —— 也就不会把整卡遮罩的定位父级偷走 */
.product-glow {
    position: absolute;
    z-index: -1;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%),
                rgba(var(--cat), .26), transparent 48%);
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease);
}

.product-card:hover,
.product-card:focus-within {
    --ty: -5px;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,.1),
        0 22px 48px rgba(0,0,0,.5),
        0 0 0 1px rgba(var(--cat), .1);
}

.product-card:hover::after,
.product-card:focus-within::after { opacity: 1; }

.product-card:hover .product-glow,
.product-card:focus-within .product-glow { opacity: 1; }

.product-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
}

.product-icon {
    position: relative;
    display: grid;
    width: 52px; height: 52px;
    place-items: center;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 14px;
    background: rgba(255,255,255,.05);
    box-shadow: 0 8px 20px rgba(0,0,0,.4);
    transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.product-icon img { width: 100%; height: 100%; object-fit: cover; }

.product-icon-fallback { font-size: 24px; }

.product-card:hover .product-icon,
.product-card:focus-within .product-icon {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 12px 26px rgba(var(--cat), .38);
}

.product-badge {
    flex: 0 0 auto;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.4;
}

.product-badge--hot       { background: rgba(255, 96, 62, .16);  color: #ff9a80; border: 1px solid rgba(255,96,62,.3); }
.product-badge--recommend { background: rgba(47, 107, 255, .18); color: #93b4ff; border: 1px solid rgba(47,107,255,.35); }
.product-badge--new       { background: rgba(20, 184, 166, .16); color: #62e6d3; border: 1px solid rgba(20,184,166,.32); }

.product-name {
    margin: 0;
    font-size: 15.5px;
    font-weight: 600;
    letter-spacing: -.02em;
    /* 必须保持 static，否则整卡遮罩会锚到标题行而不是整张卡 */
    position: static;
}

.product-name a,
.product-name .product-open { transition: color var(--dur-fast); }

/* 小程序卡片用 button（它打开弹窗而不是导航），但视觉必须和标题链接完全一致 */
.product-name .product-open {
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    cursor: inherit;
    font: inherit;
    text-align: left;
}

.product-name .product-open::after { content: ''; position: absolute; z-index: 2; inset: 0; }

.product-card:hover .product-name .product-open { color: #a8c2ff; }

/* 整卡可点，同时保留「详情」独立链接 */
.product-name a::after { content: ''; position: absolute; z-index: 2; inset: 0; }

.product-card:hover .product-name a { color: #a8c2ff; }

.product-desc {
    display: -webkit-box;
    min-height: calc(12px * 1.62 * 2);
    overflow: hidden;
    margin: 0;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    color: var(--home-muted);
    font-size: 12px;
    line-height: 1.62;
}

.product-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,.07);
    font-size: 11.5px;
}

/* min-height 对齐「详情」胶囊，否则有无详情的卡片底部分隔线会差 10px */
.product-go {
    display: inline-flex;
    min-height: 26px;
    align-items: center;
    color: rgba(233, 239, 250, .74);
    font-weight: 600;
    transition: color var(--dur-base) var(--ease);
}

.product-go i { display: inline-block; font-style: normal; transition: transform var(--dur-base) var(--ease); }

.product-card:hover .product-go { color: rgb(var(--cat)); }
.product-card:hover .product-go i { transform: translate(3px, -3px); }

/* 「详情」不再是那条 48px 竖条 */
.product-detail-link {
    position: relative;
    z-index: 4;
    padding: 4px 10px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 999px;
    color: var(--home-muted);
    font-weight: 600;
    transition: border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}

.product-detail-link:hover {
    border-color: rgba(var(--cat), .6);
    background: rgba(var(--cat), .14);
    color: #fff;
}

.empty-products {
    display: grid;
    min-height: 180px;
    place-content: center;
    gap: 8px;
    border: 1px dashed rgba(255,255,255,.14);
    border-radius: var(--home-radius);
    color: var(--home-muted);
    text-align: center;
}

.empty-products strong { color: var(--home-ink); }

/* =============================================================
   常见问题
   用原生 <details>/<summary>：零 JS、键盘可达、无障碍默认就对。
   ============================================================= */
.home-faq { padding: 0 0 90px; }

.faq-list {
    max-width: 860px;
    border-top: 1px solid rgba(255, 255, 255, .07);
}

.faq-item { border-bottom: 1px solid rgba(255, 255, 255, .07); }

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 19px 0;
    cursor: pointer;
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: -.01em;
    line-height: 1.6;
    /* 干掉浏览器默认的三角标记，换成自绘的 +/− */
    list-style: none;
    transition: color var(--dur-fast);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary:hover,
.faq-item[open] summary { color: #a8c2ff; }

.faq-item summary:focus-visible { outline: 2px solid #6ea2ff; outline-offset: 3px; border-radius: 6px; }

/* + 变 − ：两条线，展开时竖线转平并淡出 */
.faq-marker {
    position: relative;
    width: 15px;
    height: 15px;
    flex: 0 0 auto;
    color: var(--home-dim);
    transition: color var(--dur-base) var(--ease);
}

.faq-item[open] .faq-marker { color: #a8c2ff; }

.faq-marker::before,
.faq-marker::after {
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    height: 1.6px;
    border-radius: 2px;
    background: currentColor;
    transform: translateY(-50%);
    transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.faq-marker::after { transform: translateY(-50%) rotate(90deg); }

.faq-item[open] .faq-marker::after { opacity: 0; transform: translateY(-50%) rotate(0deg); }

.faq-answer {
    padding: 0 0 20px;
    color: var(--home-muted);
    font-size: 13px;
    line-height: 1.9;
}

.faq-item[open] .faq-answer { animation: faq-open var(--dur-base) var(--ease); }

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

/* =============================================================
   页脚
   ============================================================= */
.site-footer {
    border-top: 1px solid var(--home-line);
    background: linear-gradient(180deg, rgba(255,255,255,.02), transparent);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 34px 0 24px;
    flex-wrap: wrap;
    color: var(--home-muted);
    font-size: 12px;
}

/* 必须限宽：站点描述较长时会把整行撑满，
   导致右侧的二维码被 flex-wrap 挤到下一行，左下角孤零零两张码、右边全空 */
.footer-left {
    display: grid;
    flex: 1 1 auto;
    min-width: 0;
    max-width: 620px;
    gap: 18px;
}

.footer-brand { display: flex; align-items: center; gap: 13px; }
.footer-brand strong { display: block; color: var(--home-ink); font-size: 14px; font-weight: 600; }
.footer-brand small {
    display: -webkit-box;
    margin-top: 4px;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    color: var(--home-dim);
    font-size: 11.5px;
    line-height: 1.6;
}

.footer-meta { display: flex; align-items: center; gap: 24px; }
.footer-meta a,
.footer-contact-link { transition: color var(--dur-fast); }
.footer-meta a:hover,
.footer-contact-link:hover { color: #a8c2ff; }

.footer-contact-link {
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    cursor: pointer;
    font: inherit;
    font-size: 12px;
}

.footer-base a { color: inherit; transition: color var(--dur-fast); }
.footer-base a:hover { color: #a8c2ff; }

/* ---- 页脚二维码：回访钩子 ---- */
.footer-qr {
    display: flex;
    flex: 0 0 auto;
    gap: 18px;
}

.footer-qr-item {
    display: grid;
    margin: 0;
    justify-items: center;
    gap: 9px;
}

.footer-qr-item img {
    width: 96px;
    height: 96px;
    padding: 6px;
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 12px;
    /* 二维码必须白底才扫得出来，深色主题下不能跟着变暗 */
    background: #fff;
    object-fit: contain;
    transition: transform var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.footer-qr-item:hover img {
    border-color: rgba(47, 107, 255, .5);
    box-shadow: 0 10px 26px rgba(47, 107, 255, .25);
    transform: translateY(-3px) scale(1.04);
}

.footer-qr-item figcaption {
    color: var(--home-dim);
    font-size: 11px;
    white-space: nowrap;
    transition: color var(--dur-fast);
}

.footer-qr-item:hover figcaption { color: #a8c2ff; }

.footer-base {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 0 26px;
    border-top: 1px solid rgba(255,255,255,.05);
    color: var(--home-dim);
    font-size: 11px;
    flex-wrap: wrap;
}

/* =============================================================
   联系弹窗
   ============================================================= */
body.contact-modal-open { overflow: hidden; }
.contact-modal[hidden] { display: none; }

.contact-modal {
    position: fixed;
    z-index: 200;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    opacity: 0;
    transition: opacity var(--dur-base) var(--ease);
}

.contact-modal.is-visible { opacity: 1; }

.contact-modal-backdrop {
    position: absolute;
    inset: 0;
    width: 100%; height: 100%;
    padding: 0;
    border: 0;
    background: rgba(4,7,14,.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: default;
}

.contact-modal-panel {
    position: relative;
    z-index: 1;
    width: min(660px, 100%);
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    padding: 30px;
    border: 1px solid transparent;
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(23,30,50,.96), rgba(11,16,32,.96)) padding-box,
        linear-gradient(150deg, rgba(255,255,255,.24), rgba(255,255,255,.04) 45%) border-box;
    box-shadow: 0 40px 100px rgba(0,0,0,.7);
    opacity: 0;
    transform: translateY(20px) scale(.976);
    transition: opacity var(--dur-base) var(--ease), transform var(--dur-slow) var(--ease);
}

.contact-modal.is-visible .contact-modal-panel { opacity: 1; transform: none; }

.contact-modal-close {
    position: absolute;
    top: 16px; right: 16px;
    display: grid;
    width: 34px; height: 34px;
    place-items: center;
    padding: 0 0 2px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 50%;
    background: rgba(255,255,255,.05);
    color: var(--home-muted);
    cursor: pointer;
    font-size: 21px;
    line-height: 1;
    transition: border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.contact-modal-close:hover { border-color: rgba(47,107,255,.5); color: #fff; transform: rotate(90deg); }

.contact-modal-heading { padding-right: 44px; }

.contact-modal-heading p,
.contact-channel-head span {
    margin: 0 0 7px;
    color: var(--home-blue);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .18em;
}

.contact-modal-heading h2 { margin: 0; font-size: 27px; font-weight: 600; letter-spacing: -.04em; }
.contact-modal-heading > span { display: block; margin-top: 7px; color: var(--home-muted); font-size: 12.5px; }

.contact-modal-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 24px;
}

.contact-channel {
    display: grid;
    min-width: 0;
    justify-items: center;
    gap: 12px;
    padding: 20px;
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 16px;
    background: rgba(255,255,255,.03);
    text-align: center;
}

.contact-channel-head h3 { margin: 0; font-size: 16px; font-weight: 600; }

.contact-qr {
    display: grid;
    width: 160px;
    aspect-ratio: 1;
    place-items: center;
    overflow: hidden;
    padding: 8px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 14px;
    background: #fff;
}

.contact-qr img { width: 100%; height: 100%; border-radius: 8px; object-fit: contain; }

.contact-qr--empty {
    border-style: dashed;
    background: rgba(255,255,255,.04);
    color: var(--home-dim);
    font-size: 11px;
}

.contact-account {
    max-width: 100%;
    overflow: hidden;
    font-size: 14px;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.contact-modal-copy {
    min-width: 130px;
    height: 38px;
    padding: 0 16px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 999px;
    background: rgba(255,255,255,.06);
    color: var(--home-ink);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease);
}

.contact-modal-copy:hover { border-color: rgba(47,107,255,.55); background: rgba(47,107,255,.2); }

.contact-modal-empty {
    margin-top: 22px;
    padding: 34px 20px;
    border: 1px dashed rgba(255,255,255,.14);
    border-radius: 14px;
    color: var(--home-muted);
    text-align: center;
}

/* ---- 小程序码弹窗（复用联系弹窗的面板样式） ---- */
.miniapp-modal .contact-modal-panel { width: min(420px, 100%); }

.miniapp-body { display: grid; justify-items: center; gap: 18px; margin-top: 24px; }

.miniapp-body .contact-qr { width: 220px; }

.miniapp-direct {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: 999px;
    background: linear-gradient(145deg, #4b84ff, #1d49c9);
    box-shadow: 0 10px 26px rgba(47, 107, 255, .35);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.miniapp-direct[hidden] { display: none; }
.miniapp-direct:hover { box-shadow: 0 16px 36px rgba(47, 107, 255, .5); transform: translateY(-2px); }

.copy-toast {
    position: fixed;
    z-index: 300;
    right: 24px; bottom: 24px;
    padding: 12px 18px;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 10px;
    background: rgba(16,22,40,.94);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--home-ink);
    font-size: 12.5px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.copy-toast.is-visible { opacity: 1; transform: none; }

/* cursor: none 不能牺牲键盘可达性 */
a:focus-visible, button:focus-visible {
    outline: 2px solid #6ea2ff;
    outline-offset: 3px;
    border-radius: 6px;
}

/* =============================================================
   响应式
   ============================================================= */
@media (max-width: 1080px) {
    .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 780px) {
    .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
    .shell { width: min(calc(100% - 32px), var(--home-shell)); }

    .header-inner { height: 58px; }
    .brand { gap: 8px; }
    .brand-mark, .brand-mark img { width: 36px; height: 36px; }
    .brand-copy strong { max-width: 210px; overflow: hidden; font-size: 12.5px; text-overflow: ellipsis; }
    .brand-copy small { display: none; }
    .header-contact { height: 36px; gap: 6px; padding: 4px 12px 4px 4px; font-size: 11.5px; }
    .header-contact-icon { width: 27px; height: 27px; }
    .header-contact-icon svg { width: 15px; height: 15px; }

    .home-brandline { padding: 34px 0 20px; }
    .home-brandline-inner { align-items: flex-start; flex-direction: column; gap: 14px; }

    .home-poster { padding: 4px 0 32px; }
    .home-carousel { min-height: 0; max-height: none; aspect-ratio: 2.35 / 1; border-radius: 13px; }
    .home-carousel-nav { width: 34px; height: 34px; opacity: 1; }

    .products { padding: 4px 0 62px; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 10px; margin-bottom: 26px; }
    .section-heading h2 { font-size: 29px; }

    .category-modules { gap: 34px; }
    .category-module-copy h3 { font-size: 19px; }

    .product-grid { gap: 10px; }
    .product-card { gap: 10px; padding: 14px; border-radius: 14px; }
    .product-icon { width: 44px; height: 44px; border-radius: 12px; }
    .product-name { font-size: 13.5px; }
    .product-desc { min-height: calc(11px * 1.62 * 2); font-size: 11px; }
    .product-foot { padding-top: 10px; font-size: 10.5px; }
    .product-detail-link { padding: 3px 8px; }

    .home-faq { padding: 0 0 62px; }
    .faq-item summary { padding: 16px 0; gap: 14px; font-size: 13.5px; }
    .faq-answer { padding: 0 0 17px; font-size: 12.5px; line-height: 1.85; }

    .footer-inner { align-items: flex-start; flex-direction: column; gap: 22px; padding: 28px 0 20px; }
    .footer-meta { gap: 18px; flex-wrap: wrap; }
    /* 手机上两张码并排，尺寸压到 84px 仍可扫 */
    .footer-qr { gap: 14px; }
    .footer-qr-item img { width: 84px; height: 84px; }
    .footer-qr-item figcaption { font-size: 10.5px; }
    .footer-base { align-items: flex-start; flex-direction: column; gap: 8px; }

    .contact-modal { align-items: end; padding: 16px 0 0; }
    .contact-modal-panel {
        width: 100%;
        max-height: calc(100vh - 16px);
        padding: 24px 18px calc(22px + env(safe-area-inset-bottom));
        border-radius: 20px 20px 0 0;
    }
    .contact-modal-heading h2 { font-size: 24px; }
    .contact-modal-grid { grid-template-columns: 1fr; gap: 10px; margin-top: 18px; }
    .contact-qr { width: 140px; }
    .copy-toast { right: 16px; left: 16px; bottom: 16px; text-align: center; }
}

@media (max-width: 390px) {
    .brand-copy strong { max-width: min(165px, calc(100vw - 190px)); }
    .header-contact { font-size: 11px; }
    .header-contact-arrow { display: none; }
}

/* =============================================================
   降级
   ============================================================= */
@media (hover: none), (pointer: coarse) {
    /* 触屏没有指针，自定义箭头没有意义，交还系统默认 */
    body, body a, body button, body .product-card { cursor: auto !important; }
    /* 也没有 hover，分类色边框常显一档 */
    .product-card::after { opacity: .45; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
    }

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

/* =============================================================
   新增模块 A：公告条
   位置在顶栏之下、品牌条之上。可关闭，关闭状态写 localStorage，
   同一条公告不再打扰；后台换了文案（key 变化）会重新出现。
   ============================================================= */
.home-notice {
    position: relative;
    z-index: 50;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    background: linear-gradient(90deg, rgba(47,107,255,.16), rgba(109,67,255,.10) 55%, transparent);
}

.home-notice[hidden] { display: none; }

.home-notice-inner {
    display: flex;
    min-height: 42px;
    align-items: center;
    gap: 12px;
    padding: 7px 0;
}

.home-notice-tag {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 7px;
    padding: 3px 10px;
    border: 1px solid rgba(47,107,255,.42);
    border-radius: 999px;
    background: rgba(47,107,255,.16);
    color: #a8c2ff;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .04em;
}

/* 呼吸圆点：整个元素只有 5px，重绘面积可忽略 */
.home-notice-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: #5b90ff;
    animation: home-notice-pulse 2.6s ease-out infinite;
}

@keyframes home-notice-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(91,144,255,.55); }
    70%  { box-shadow: 0 0 0 6px rgba(91,144,255,0); }
    100% { box-shadow: 0 0 0 0 rgba(91,144,255,0); }
}

.home-notice-text {
    min-width: 0;
    flex: 1 1 auto;
    overflow: hidden;
    color: rgba(233,239,250,.88);
    font-size: 12.5px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 正文本身就是近白色，链接必须够重才看得出是链接：
   加饱和度 + 实一点的下划线 + 字重 + 尾部箭头，四样一起才立得住 */
.home-notice-text a {
    border-bottom: 1px solid rgba(143,180,255,.7);
    color: #8fb4ff;
    font-weight: 600;
    transition: border-color var(--dur-fast), color var(--dur-fast);
}

.home-notice-text a::after {
    display: inline-block;
    margin-left: 4px;
    content: '→';
    transition: transform var(--dur-base) var(--ease);
}

.home-notice-text a:hover { border-bottom-color: #cfe0ff; color: #fff; }
.home-notice-text a:hover::after { transform: translateX(3px); }

.home-notice-date {
    flex: 0 0 auto;
    color: var(--home-dim);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
}

/* 公告条没有关闭按钮 —— 见 home-v2.js 中的说明 */

/* =============================================================
   新增模块 B：信任模块
   位置在产品入口之后、页脚之前。左侧品牌主张，右侧三个硬指标。
   指标数字全部来自真实数据，不允许写死好看的假数。
   ============================================================= */
.home-about { padding: 0 0 90px; }

.home-about-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: center;
    gap: 54px;
    padding: 42px 44px;
    border: 1px solid transparent;
    border-radius: 20px;
    background:
        linear-gradient(180deg, var(--home-glass), var(--home-glass-2)) padding-box,
        linear-gradient(150deg, var(--home-line-top), rgba(255,255,255,.05) 38%, var(--home-line-bot) 72%) border-box;
    box-shadow:
        inset 0 1px 0 rgba(255,255,255,.07),
        0 18px 50px rgba(0,0,0,.4);
}

.home-about-copy p {
    margin: 0 0 10px;
    color: #93b4ff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .2em;
}

.home-about-copy h2 {
    margin: 0;
    font-size: clamp(23px, 2.3vw, 31px);
    font-weight: 600;
    letter-spacing: -.035em;
    line-height: 1.52;
}

.home-about-stats {
    display: grid;
    /* 指标是 1~3 个（累计跳转和第三格都能在后台关掉），
       用 auto-flow 让列数跟着实际数量走，关掉一个不会留空位 */
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
    gap: 14px;
}

.home-about-stat {
    display: grid;
    gap: 7px;
    padding: 20px 16px;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 14px;
    background: rgba(255,255,255,.03);
    text-align: center;
    transition: border-color var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
}

.home-about-stat:hover {
    border-color: rgba(47,107,255,.35);
    background: rgba(47,107,255,.07);
}

.home-about-stat b {
    background: linear-gradient(120deg, #8fb4ff 10%, #57e0cd 90%);
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 29px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: -.035em;
    line-height: 1.15;
}

.home-about-stat span { color: var(--home-muted); font-size: 11.5px; }

@media (max-width: 900px) {
    .home-about-inner { grid-template-columns: 1fr; gap: 30px; padding: 34px 28px; }
}

@media (max-width: 640px) {
    .home-notice-inner { min-height: 40px; gap: 9px; padding: 8px 0; }
    .home-notice-tag { padding: 3px 8px; font-size: 10px; }
    /* 手机上日期让位给正文 */
    .home-notice-date { display: none; }
    .home-notice-text { font-size: 12px; }

    .home-about { padding: 0 0 62px; }
    .home-about-inner { gap: 24px; padding: 24px 18px; border-radius: 16px; }
    .home-about-copy h2 { font-size: 21px; line-height: 1.62; }
    .home-about-stats { gap: 9px; }
    .home-about-stat { padding: 15px 8px; border-radius: 12px; }
    .home-about-stat b { font-size: 22px; }
    .home-about-stat span { font-size: 10.5px; }
}