/* ============================================================
   cert.css — 腾讯官方授权证书展示（2026-11-06）
   · 方案 A：首页首屏右下角资质悬浮卡
   · 方案 D：关于我们页独立资质专区三卡
   · 共用：证书灯箱
   ⚠️ 口径：官方授权合作伙伴（非独家），授权主体北京聚合智维科技有限公司
   ============================================================ */

/* ============================================================
   一、方案 A · 首屏资质悬浮卡
   ============================================================ */
.cert-float {
    position: absolute;
    right: 0;
    bottom: -20px;
    z-index: 6;
    width: 244px;
    padding: 9px;
    border-radius: 14px;
    background: rgba(12, 11, 44, .90);
    border: 1px solid rgba(0, 229, 200, .34);
    box-shadow: 0 18px 46px rgba(0, 0, 0, .58),
                inset 0 1px 0 rgba(255, 255, 255, .06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: zoom-in;
    transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.cert-float:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 229, 200, .62);
    box-shadow: 0 24px 56px rgba(0, 0, 0, .66),
                inset 0 1px 0 rgba(255, 255, 255, .08),
                0 0 26px rgba(0, 229, 200, .20);
}
.cert-float img {
    display: block;
    width: 100%;
    border-radius: 8px;
    background: #fff;
}
.cert-float-cap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .03em;
    color: var(--c-cyan);
}
.cert-float-cap::before {
    content: '✓';
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c-cyan);
    color: #06122E;
    font-size: 9.5px;
    font-weight: 900;
}

/* 窄屏：悬浮卡改到左栏底部通栏，避免压住球图 */
@media (max-width: 980px) {
    .cert-float {
        position: static;
        width: 100%;
        max-width: 320px;
        margin: 18px auto 0;
    }
}
@media (max-width: 420px) {
    .cert-float { max-width: 260px; }
}

/* ============================================================
   二、方案 D · 资质专区三卡
   ============================================================ */
.cert-zone {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}
.cert-zone-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 26px 22px 24px;
    border-radius: var(--r-lg);
    background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
    border: 1px solid var(--bd-1);
    transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.cert-zone-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 229, 200, .40);
    box-shadow: 0 20px 46px rgba(0, 0, 0, .38);
}
.cert-zone-card img.cert-zone-cert {
    display: block;
    width: 100%;
    max-width: 250px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, .48);
    cursor: zoom-in;
}
.cert-zone-card img.cert-zone-logos {
    display: block;
    height: 40px;
    width: auto;
    max-width: 82%;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
    padding: 9px 14px;
    margin: 30px 0 24px;
    box-shadow: 0 10px 26px rgba(0, 0, 0, .40);
}
.cert-zone-num {
    font-size: clamp(44px, 4.2vw, 60px);
    font-weight: 800;
    line-height: 1;
    margin: 18px 0 4px;
    background: linear-gradient(135deg, #00E5C8, #8B5CF6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.cert-zone-card h4 {
    margin: 12px 0 8px;
    font-size: 17px;
    font-weight: 800;
    color: var(--text-1);
}
.cert-zone-card p {
    margin: 0;
    font-size: 13.5px;
    line-height: 1.66;
    color: var(--text-3);
}
.cert-zone-card .cert-zone-note {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-4);
}
@media (max-width: 860px) {
    .cert-zone { grid-template-columns: 1fr; gap: 16px; }
    .cert-zone-card img.cert-zone-cert { max-width: 300px; }
    .cert-zone-card img.cert-zone-logos { margin: 20px 0 16px; }
}

/* ============================================================
   三、证书灯箱
   ============================================================ */
.cert-lb {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 32px;
    background: rgba(4, 6, 22, .93);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.cert-lb.is-open { display: flex; }
.cert-lb-figure {
    margin: 0;
    max-width: min(900px, 92vw);
    text-align: center;
}
.cert-lb-figure img {
    display: block;
    width: 100%;
    max-height: 82vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, .72);
    background: #fff;
}
.cert-lb-figure figcaption {
    margin-top: 16px;
    font-size: 12.5px;
    line-height: 1.7;
    color: rgba(255, 255, 255, .62);
}
.cert-lb-close {
    position: absolute;
    top: 24px;
    right: 28px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .10);
    border: 1px solid rgba(255, 255, 255, .22);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: background .25s var(--ease), transform .25s var(--ease);
}
.cert-lb-close:hover {
    background: rgba(255, 255, 255, .20);
    transform: rotate(90deg);
}