/* ==========================================================================
   产品陈列馆 · 样式表
   设计基调：深色中性底 + 单一强调色（靛蓝 → 青） · 大字级 · 大留白
   ========================================================================== */

:root {
    /* 底色层级：页面 → 卡片 → 悬浮 */
    --bg: #08090B;
    --bg-soft: #0B0C0F;
    --surface: rgba(255, 255, 255, .035);
    --surface-hover: rgba(255, 255, 255, .06);

    /* 描边 */
    --line: rgba(255, 255, 255, .07);
    --line-strong: rgba(255, 255, 255, .13);

    /* 文字 */
    --text: #E8EAED;
    --text-soft: #A8B0BC;
    --text-dim: #6B7280;

    /* 强调色（只用这一组，避免页面花） */
    --accent: #7C87F8;
    --accent-deep: #5B64E8;
    --accent-soft: rgba(124, 135, 248, .14);
    --cyan: #5FD4E8;

    /* 语义点色（只用于小圆点，不做大面积填充） */
    --ok: #34D399;
    --info: #60A5FA;
    --violet: #A78BFA;
    --warn: #FBBF24;

    --radius: 16px;
    --radius-lg: 20px;
    --ease: cubic-bezier(.32, .72, .28, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;      /* 固定导航占位，锚点不被挡住 */
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
                 "Microsoft YaHei", "Segoe UI", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

::selection { background: rgba(124, 135, 248, .35); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
    background: #22242A;
    border-radius: 99px;
    border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: #32353D; }
::-webkit-scrollbar-track { background: transparent; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.section { padding-top: 112px; }

/* ---------- 通用元素 ---------- */

.glass {
    background: var(--surface);
    border: 1px solid var(--line);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.grad {
    background: linear-gradient(96deg, #B4BDFF 0%, #7FD8EA 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 11px;
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: .01em;
    border: 1px solid transparent;
    transition: transform .22s var(--ease), background .22s, border-color .22s, box-shadow .22s;
    white-space: nowrap;
}

.btn-sm { padding: 9px 18px; font-size: 13.5px; border-radius: 9px; }

.btn-primary {
    background: linear-gradient(180deg, #7C87F8, #5B64E8);
    color: #fff;
    box-shadow: 0 1px 0 rgba(255, 255, 255, .18) inset,
                0 8px 24px -12px rgba(99, 102, 241, .9);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .22) inset,
                0 14px 30px -14px rgba(99, 102, 241, 1);
}

.btn-ghost {
    background: rgba(255, 255, 255, .04);
    border-color: var(--line-strong);
    color: var(--text);
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, .08);
    border-color: rgba(255, 255, 255, .22);
}

/* 章节标题：小竖线 + 中文主标题 + 英文副标 */
.section-title {
    display: flex;
    align-items: baseline;
    gap: 14px;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -.02em;
    color: #fff;
    margin-bottom: 40px;
}
.section-title .bar {
    width: 3px;
    height: 22px;
    border-radius: 3px;
    align-self: center;
    background: linear-gradient(180deg, var(--accent), var(--cyan));
}
.bar-indigo, .bar-cyan, .bar-emerald, .bar-orange {
    background: linear-gradient(180deg, var(--accent), var(--cyan));
}
.section-title .sub {
    font-size: 11.5px;
    font-weight: 500;
    font-style: normal;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--text-dim);
}

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

/* ---------- 导航 ---------- */

.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 40;
    background: rgba(8, 9, 11, .78);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border-bottom: 1px solid var(--line);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 28px;
    display: flex;
    align-items: center;
    gap: 34px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-size: 15.5px;
    font-weight: 650;
    letter-spacing: -.01em;
    color: #fff;
}
.brand-mark {
    width: 26px; height: 26px;
    border-radius: 8px;
    background: linear-gradient(140deg, #8B93FF, #4FD1E0);
    box-shadow: 0 4px 14px -6px rgba(99, 102, 241, .9),
                0 1px 0 rgba(255, 255, 255, .3) inset;
    position: relative;
}
.brand-mark::after {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 3px;
    background: rgba(8, 9, 11, .55);
}

.nav-links {
    display: flex;
    gap: 28px;
    margin-left: auto;
    font-size: 14px;
    color: var(--text-soft);
}
.nav-links a { transition: color .2s; position: relative; }
.nav-links a:hover { color: #fff; }

@media (max-width: 760px) {
    .nav-links { display: none; }
    .nav-inner { gap: 16px; }
}

/* ---------- 首屏 ---------- */

.hero {
    position: relative;
    padding: 172px 0 96px;
    text-align: center;
    isolation: isolate;
}
/* 光晕改成背景渐变，避免模糊层被容器裁切出硬边 */
.hero::before {
    content: "";
    position: absolute;
    inset: -120px 0 auto 0;
    height: 780px;
    z-index: -1;
    background:
        radial-gradient(760px 420px at 50% 6%, rgba(99, 102, 241, .20), transparent 68%),
        radial-gradient(560px 340px at 12% 34%, rgba(34, 211, 238, .07), transparent 70%),
        radial-gradient(520px 320px at 88% 26%, rgba(167, 139, 250, .09), transparent 70%);
    pointer-events: none;
}
/* 细网格，给深色背景一点质感 */
.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(680px 460px at 50% 22%, #000 20%, transparent 78%);
    -webkit-mask-image: radial-gradient(680px 460px at 50% 22%, #000 20%, transparent 78%);
    pointer-events: none;
}

.glow { display: none; }   /* 旧的光晕元素，改由 ::before 承担 */

.hero-inner { position: relative; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 16px 7px 13px;
    border-radius: 999px;
    font-size: 12.5px;
    letter-spacing: .04em;
    color: #C8CEF8;
    background: rgba(124, 135, 248, .08);
    border: 1px solid rgba(124, 135, 248, .22);
    margin-bottom: 34px;
}
.badge::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #7C87F8;
    box-shadow: 0 0 0 3px rgba(124, 135, 248, .16);
}

.hero-title {
    font-size: clamp(38px, 5vw, 62px);
    line-height: 1.16;
    font-weight: 800;
    letter-spacing: -.035em;
    color: #fff;
    margin-bottom: 34px;
}

.hero-stats {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0;
    color: var(--text-soft);
    font-size: 13.5px;
    margin-bottom: 44px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .022);
    padding: 4px 6px;
}
.stat {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 8px 20px;
    position: relative;
    white-space: nowrap;
}
.stat + .stat::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 1px; height: 14px;
    background: var(--line);
}
#stat-total { color: #fff; font-weight: 700; font-variant-numeric: tabular-nums; margin-right: 5px; }

.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; flex-shrink: 0; margin-right: 9px; }
.dot-green { background: var(--ok); }
.dot-blue { background: var(--info); }
.dot-purple { background: var(--violet); }

.hero-cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

@media (max-width: 760px) {
    .hero { padding: 120px 0 64px; }
    .hero-title { font-size: 34px; letter-spacing: -.02em; }
    .hero-stats {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        border-radius: 16px;
        padding: 6px;
        font-size: 13px;
    }
    .stat { padding: 9px 16px; justify-content: flex-start; }
    .stat + .stat::before { left: 16px; right: 16px; width: auto; height: 1px; top: 0; transform: none; }
    .section { padding-top: 88px; }
    .section-title { font-size: 24px; margin-bottom: 28px; }
}

/* ---------- 镇馆之宝 ---------- */

.bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.bento-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 16px;
    min-height: 268px;
    padding: 26px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015)),
        var(--bg-soft);
    border: 1px solid var(--line);
    transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.bento-card::before {              /* 顶部高光，让卡片有体积感 */
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .16), transparent);
}
.bento-card::after {               /* 悬停时的极淡光斑 */
    content: "";
    position: absolute;
    inset: -40% -20% auto -20%;
    height: 70%;
    background: radial-gradient(closest-side, rgba(124, 135, 248, .16), transparent);
    opacity: 0;
    transition: opacity .35s;
    pointer-events: none;
}
.bento-card:hover {
    transform: translateY(-3px);
    border-color: rgba(124, 135, 248, .38);
    box-shadow: 0 24px 50px -30px rgba(0, 0, 0, .9);
}
.bento-card:hover::after { opacity: 1; }

/* 宽卡退出使用：三张等分更整齐 */
.bento-card.wide { grid-column: span 1; }
.bento-card.wide .bento-desc { max-width: none; }

.bento-watermark {
    position: absolute;
    right: -34px;
    bottom: -40px;
    width: 190px; height: 190px;
    opacity: .045;
    color: #fff;
    pointer-events: none;
    transition: opacity .35s, transform .45s var(--ease);
}
.bento-card:hover .bento-watermark { opacity: .09; transform: scale(1.04); }

.bento-badge {
    align-self: flex-start;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: .02em;
    border: 1px solid;
    margin-bottom: auto;
}

.bento-name {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -.02em;
    color: #fff;
    margin-bottom: 8px;
}
.bento-card.wide .bento-name { font-size: 22px; }

.bento-desc {
    color: var(--text-soft);
    font-size: 13.5px;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.bento-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-dim);
    padding-top: 14px;
    border-top: 1px solid var(--line);
}
.bento-meta > span:last-child { margin-left: auto; }

@media (max-width: 960px) {
    .bento { grid-template-columns: 1fr; }
    .bento-card { min-height: 220px; }
}

/* ---------- 产品库 ---------- */

.vault-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}
.vault-head .section-title { margin-bottom: 0; }

.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 320px;
    padding: 11px 16px;
    border-radius: 11px;
    background: rgba(255, 255, 255, .032);
    border: 1px solid var(--line);
    transition: border-color .2s, background .2s;
}
.search-box:focus-within {
    border-color: rgba(124, 135, 248, .5);
    background: rgba(255, 255, 255, .05);
}
.search-box svg { width: 16px; height: 16px; color: var(--text-dim); flex-shrink: 0; }
.search-box input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text);
    font-size: 13.5px;
    font-family: inherit;
}
.search-box input::placeholder { color: var(--text-dim); }

/* 筛选区：去掉大盒子，用两条细线分隔，视觉更轻 */
.filter-groups {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    margin-bottom: 34px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    padding: 3px 0;
}

.filter-label {
    width: 46px;
    flex-shrink: 0;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .14em;
    color: var(--text-dim);
}

.chip {
    padding: 6px 13px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-soft);
    background: transparent;
    border: 1px solid transparent;
    transition: color .18s, background .18s, border-color .18s;
}
.chip:hover { color: #fff; background: rgba(255, 255, 255, .05); }
.chip.active {
    color: #DFE3FF;
    background: var(--accent-soft);
    border-color: rgba(124, 135, 248, .38);
}
.chip .cnt {
    margin-left: 6px;
    font-size: 11px;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
}
.chip.active .cnt { color: rgba(223, 227, 255, .7); }

/* 三列大卡：卡片够宽，封面才不像空盒子 */
.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

@media (max-width: 1080px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .grid { grid-template-columns: 1fr; gap: 16px; } }

/* ---------- 项目卡片 ---------- */

.pcard {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .012));
    border: 1px solid var(--line);
    transition: transform .3s var(--ease), border-color .3s, box-shadow .3s;
}
.pcard:hover {
    transform: translateY(-4px);
    border-color: rgba(124, 135, 248, .34);
    box-shadow: 0 26px 50px -32px rgba(0, 0, 0, .95);
}
.pcard:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* 封面：渐变底 + 网格点 + 起始字标 */
.pcard-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
}
.pcard-cover::before {             /* 细网点 */
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, .1) 1px, transparent 1px);
    background-size: 16px 16px;
    opacity: .5;
    mask-image: radial-gradient(70% 70% at 50% 50%, #000, transparent 75%);
    -webkit-mask-image: radial-gradient(70% 70% at 50% 50%, #000, transparent 75%);
}
.pcard-cover::after {              /* 底部压暗，衔接卡片正文 */
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 45%;
    background: linear-gradient(180deg, transparent, rgba(6, 7, 9, .55));
}

.pcard-cover img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.pcard-cover img + .cover-art { display: none; }

/* 字标：取项目名首字（英文取前两个字母），每个卡片都有自己的识别符号 */
.cover-art {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cover-tile {
    width: 78px; height: 78px;
    border-radius: 21px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .07);
    border: 1px solid rgba(255, 255, 255, .16);
    box-shadow: 0 10px 26px -14px rgba(0, 0, 0, .9),
                0 1px 0 rgba(255, 255, 255, .12) inset;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    color: #fff;
    font-size: 31px;
    font-weight: 700;
    letter-spacing: -.03em;
    transition: transform .35s var(--ease), background .35s, border-color .35s;
}
.cover-tile.latin { font-size: 23px; letter-spacing: .02em; }
.pcard:hover .cover-tile, .bento-card:hover .cover-tile {
    transform: scale(1.05);
    background: rgba(255, 255, 255, .1);
    border-color: rgba(255, 255, 255, .24);
}

/* 浏览器窗口条（仅 web 类型） */
.chrome-bar {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 26px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 11px;
    background: rgba(0, 0, 0, .28);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
}
.chrome-bar i {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .18);
    display: block;
}
.chrome-bar .addr {
    flex: 1;
    margin-left: 8px;
    font-size: 9.5px;
    line-height: 14px;
    color: rgba(255, 255, 255, .34);
    max-width: 62%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* 兼容旧标记：手机外框（保留但不再使用） */
.placeholder { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.placeholder svg { width: 40px; height: 40px; opacity: .8; }
.phone-frame {
    width: 40%;
    aspect-ratio: 9 / 17;
    border-radius: 14px;
    border: 2px solid rgba(255, 255, 255, .16);
    background: rgba(0, 0, 0, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}
.phone-frame .notch {
    position: absolute;
    top: 6px; left: 50%;
    transform: translateX(-50%);
    width: 32%; height: 4px;
    border-radius: 3px;
    background: rgba(255, 255, 255, .16);
}
.phone-frame svg { width: 24px; height: 24px; opacity: .8; }

.pcard-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    padding: 18px 18px 16px;
}

.pcard-top { display: flex; align-items: flex-start; gap: 10px; }

.pcard-name {
    flex: 1;
    min-width: 0;
    font-size: 16px;
    font-weight: 650;
    line-height: 1.4;
    letter-spacing: -.01em;
    color: #fff;
}

.type-badge {
    flex-shrink: 0;
    margin-top: 2px;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 10.5px;
    letter-spacing: .02em;
    border: 1px solid;
    white-space: nowrap;
}
.tb-web { color: #A8B4FF; background: rgba(96, 165, 250, .10); border-color: rgba(96, 165, 250, .22); }
.tb-desktop { color: #C4B3FF; background: rgba(167, 139, 250, .10); border-color: rgba(167, 139, 250, .22); }
.tb-mini { color: #8AE0B8; background: rgba(52, 211, 153, .10); border-color: rgba(52, 211, 153, .22); }
.tb-app { color: #8EDCEA; background: rgba(95, 212, 232, .10); border-color: rgba(95, 212, 232, .22); }

.pcard-tagline {
    font-size: 13px;
    line-height: 1.66;
    color: var(--text-soft);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 43px;
}

.pcard-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.ptag {
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    color: var(--text-soft);
    background: rgba(255, 255, 255, .035);
    border: 1px solid var(--line);
    white-space: nowrap;
}

.pcard-foot {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, .05);
    font-size: 11.5px;
    color: var(--text-dim);
}
.pcard-foot > span:first-child { font-variant-numeric: tabular-nums; }
.pcard-foot > span:not(:first-child) { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; }
.pcard-foot span + span { margin-left: 0; }
.pcard-foot > span:nth-child(3) { margin-left: 12px; }

.exp-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}
.exp-online { background: var(--ok); }
.exp-download { background: var(--info); }
.exp-scan { background: var(--cyan); }
.exp-private { background: var(--warn); }

.empty-tip {
    padding: 64px 0;
    text-align: center;
    font-size: 13.5px;
    color: var(--text-dim);
}

/* ---------- 合作与服务 ---------- */

.service-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    counter-reset: svc;
}
.service-card {
    position: relative;
    padding: 28px 26px 30px;
    border-radius: var(--radius);
    transition: transform .3s var(--ease), border-color .3s, background .3s;
    counter-increment: svc;
}
.service-card::before {
    content: "0" counter(svc);
    display: block;
    margin-bottom: 16px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .1em;
    color: rgba(124, 135, 248, .85);
}
.service-card:hover {
    transform: translateY(-3px);
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, .05);
}
.service-card h3 {
    font-size: 17px;
    font-weight: 650;
    letter-spacing: -.01em;
    color: #fff;
    margin-bottom: 10px;
}
.service-card p { font-size: 13.5px; line-height: 1.72; color: var(--text-soft); }

@media (max-width: 860px) { .service-cards { grid-template-columns: 1fr; } }

.flow-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 18px;
}

.flow {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding: 22px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .02);
}
.flow-step {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 10px 18px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
}
.flow-step b {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .06em;
    color: var(--accent);
}
.flow-step span { font-size: 13.5px; color: var(--text); }
.flow-arrow {
    width: 20px; height: 1px;
    background: var(--line-strong);
    position: relative;
    flex-shrink: 0;
}
.flow-arrow::after {
    content: "";
    position: absolute;
    right: 0; top: -2.5px;
    border-left: 5px solid var(--line-strong);
    border-top: 3px solid transparent;
    border-bottom: 3px solid transparent;
}

/* ---------- 联系 ---------- */

/* 单块横向面板：左右两栏等高，比两个不等高的卡片更整齐 */
.contact-panel {
    display: grid;
    grid-template-columns: 320px 1fr;
    max-width: 960px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background:
        radial-gradient(600px 260px at 8% 0%, rgba(124, 135, 248, .08), transparent 70%),
        rgba(255, 255, 255, .018);
    overflow: hidden;
}

.contact-col { padding: 34px 36px; display: flex; flex-direction: column; }
.contact-col + .contact-col {
    border-left: 1px solid var(--line);
    justify-content: center;
    gap: 12px;
    padding: 34px 44px;
}

.c-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 18px;
}

.qr-placeholder {
    width: 152px; height: 152px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    border: 1px dashed rgba(255, 255, 255, .2);
    background:
        linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 12px 12px,
        linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px) 0 0 / 12px 12px;
    color: var(--text-dim);
    font-size: 12.5px;
}

.contact-email {
    font-size: 21px;
    font-weight: 650;
    letter-spacing: -.02em;
    color: #DDE1FF;
    word-break: break-all;
}

.contact-col .muted { font-size: 12.5px; line-height: 1.7; color: var(--text-dim); }

@media (max-width: 760px) {
    .contact-panel { grid-template-columns: 1fr; }
    .contact-col { padding: 26px 24px; }
    .contact-col + .contact-col { border-left: none; border-top: 1px solid var(--line); }
}

/* ---------- 页脚 ---------- */

.footer {
    margin-top: 130px;
    padding: 36px 0 44px;
    border-top: 1px solid var(--line);
    text-align: center;
    font-size: 12.5px;
    color: var(--text-dim);
}

/* ---------- 详情抽屉 ---------- */

.drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    background: rgba(4, 5, 7, .74);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    transition: opacity .3s var(--ease);
}
.drawer-backdrop.open { opacity: 1; }

.drawer-panel {
    position: absolute;
    top: 0; right: 0;
    width: min(620px, 100%);
    height: 100%;
    display: flex;
    flex-direction: column;
    background: #0A0B0E;
    border-left: 1px solid var(--line);
    box-shadow: -40px 0 90px rgba(0, 0, 0, .7);
    transform: translateX(100%);
    transition: transform .34s var(--ease);
}
.drawer-backdrop.open .drawer-panel { transform: translateX(0); }

.drawer-head {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 20px 26px;
    border-bottom: 1px solid var(--line);
}
.drawer-head h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    font-size: 18px;
    font-weight: 650;
    letter-spacing: -.01em;
    color: #fff;
}
.drawer-head h3 svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--accent); }
.drawer-head h3 span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.drawer-close {
    flex-shrink: 0;
    width: 34px; height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--line);
    color: var(--text-soft);
    transition: color .2s, background .2s, border-color .2s;
}
.drawer-close:hover { color: #fff; background: rgba(255, 255, 255, .1); border-color: var(--line-strong); }
.drawer-close svg { width: 15px; height: 15px; }

.drawer-body { flex: 1; overflow-y: auto; padding: 26px; }

.drawer-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    border: 1px solid var(--line);
    overflow: hidden;
    margin-bottom: 26px;
}
.drawer-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.drawer-cover .placeholder {
    position: relative;
    inset: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-dim);
    font-size: 12px;
}
.drawer-cover .placeholder svg { width: 42px; height: 42px; opacity: .55; }

.drawer-sec { margin-bottom: 24px; }
.drawer-sec h4 {
    margin-bottom: 12px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.drawer-sec .pain { font-size: 14.5px; line-height: 1.8; color: #CBD2DC; }

.drawer-sec ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.drawer-sec li {
    position: relative;
    padding-left: 20px;
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--text-soft);
}
.drawer-sec li::before {
    content: "";
    position: absolute;
    left: 0; top: 9px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px rgba(124, 135, 248, .14);
}

.drawer-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.drawer-tags span {
    display: inline-flex;
    align-items: center;
    padding: 5px 11px;
    border-radius: 7px;
    font-size: 12px;
    color: #C3CAD6;
    background: rgba(255, 255, 255, .045);
    border: 1px solid var(--line);
}

.drawer-screens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.drawer-screens .shot {
    aspect-ratio: 4 / 3;
    border-radius: 9px;
    border: 1px solid var(--line);
    overflow: hidden;
}
.drawer-screens .shot img { width: 100%; height: 100%; object-fit: cover; }

.drawer-foot {
    flex-shrink: 0;
    padding: 18px 26px 22px;
    border-top: 1px solid var(--line);
    background: rgba(255, 255, 255, .02);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.drawer-actions { display: flex; gap: 10px; }
.drawer-actions .btn { flex: 1; padding: 12px 0; font-size: 13.5px; }
.drawer-custom { width: 100%; padding: 11px 0; font-size: 13px; }

/* ---------- 封面渐变（按终端类型区分冷暖倾向） ---------- */

.cover-grad-web {
    background:
        radial-gradient(120% 130% at 18% 0%, rgba(99, 102, 241, .30), transparent 58%),
        radial-gradient(120% 130% at 88% 100%, rgba(56, 130, 246, .20), transparent 60%),
        linear-gradient(180deg, #14161C, #0C0D11);
}
.cover-grad-desktop {
    background:
        radial-gradient(120% 130% at 18% 0%, rgba(124, 88, 234, .28), transparent 58%),
        radial-gradient(120% 130% at 88% 100%, rgba(99, 102, 241, .18), transparent 60%),
        linear-gradient(180deg, #15131C, #0C0D11);
}
.cover-grad-mini {
    background:
        radial-gradient(120% 130% at 18% 0%, rgba(16, 185, 129, .24), transparent 58%),
        radial-gradient(120% 130% at 88% 100%, rgba(34, 211, 238, .16), transparent 60%),
        linear-gradient(180deg, #0F1717, #0C0D11);
}
.cover-grad-app {
    background:
        radial-gradient(120% 130% at 18% 0%, rgba(6, 182, 212, .24), transparent 58%),
        radial-gradient(120% 130% at 88% 100%, rgba(59, 130, 246, .18), transparent 60%),
        linear-gradient(180deg, #0E1518, #0C0D11);
}

/* 旧图标色（抽屉等处仍在用） */
.cover-icon-web { color: #9BA6FF; }
.cover-icon-desktop { color: #B39DFF; }
.cover-icon-mini { color: #6EE7B7; }
.cover-icon-app { color: #7DD3E8; }

/* 场景徽章：低饱和，避免五种高饱和色打架 */
.bb-ai { color: #8EDCEA; background: rgba(95, 212, 232, .09); border-color: rgba(95, 212, 232, .24); }
.bb-life { color: #86D9B4; background: rgba(52, 211, 153, .09); border-color: rgba(52, 211, 153, .24); }
.bb-biz { color: #BBA6F5; background: rgba(167, 139, 250, .09); border-color: rgba(167, 139, 250, .24); }
.bb-tool { color: #F0B27A; background: rgba(251, 146, 60, .09); border-color: rgba(251, 146, 60, .24); }
.bb-creative { color: #EFA6C8; background: rgba(236, 72, 153, .09); border-color: rgba(236, 72, 153, .24); }

/* ---------- 动效与无动画偏好 ---------- */

/* 首屏不放透明度入场动画：避免慢设备/截图工具停在半透明状态导致内容发灰 */

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .001ms !important;
        transition-duration: .001ms !important;
    }
}