.guli-history-v3 {
    --history-blue: #2563eb;
    --history-navy: #0f172a;
    --history-text: #334155;
    --history-muted: #64748b;
    --history-border: #e2e8f0;
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    color: var(--history-text);
    background:
        radial-gradient(circle at 88% 4%, rgba(37, 99, 235, .11), transparent 24%),
        radial-gradient(circle at 8% 44%, rgba(14, 165, 233, .07), transparent 23%),
        linear-gradient(180deg, #f8fbff 0%, #fff 30%, #f8fafc 100%);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.guli-history-v3,
.guli-history-v3 * {
    box-sizing: border-box;
}

.guli-history-v3::before,
.guli-history-v3::after {
    position: absolute;
    border-radius: 50%;
    content: "";
    pointer-events: none;
    filter: blur(1px);
}

.guli-history-v3::before {
    top: 70px;
    right: -150px;
    width: 420px;
    height: 420px;
    border: 1px solid rgba(37, 99, 235, .09);
    box-shadow: 0 0 0 55px rgba(37, 99, 235, .025), 0 0 0 110px rgba(37, 99, 235, .018);
}

.guli-history-v3::after {
    bottom: 280px;
    left: -110px;
    width: 260px;
    height: 260px;
    background: rgba(14, 165, 233, .045);
    filter: blur(60px);
}

.guli-history-shell {
    position: relative;
    z-index: 1;
    padding: 72px 34px 84px;
}

.guli-history-hero {
    max-width: 1080px;
    margin: 0 auto 84px;
    text-align: center;
}

.guli-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin: 0 0 18px;
    color: var(--history-blue);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 2.5px;
}

.guli-eyebrow i {
    font-size: 15px;
}

.guli-history-hero > h2 {
    max-width: 800px;
    margin: 0 auto;
    color: var(--history-navy);
    font-size: 44px;
    font-weight: 800;
    line-height: 1.28;
    letter-spacing: -.8px;
}

.guli-history-lead {
    max-width: 920px;
    margin: 20px auto 0;
    color: var(--history-muted);
    font-size: 16px;
    line-height: 1.9;
    white-space: nowrap;
}

.guli-founded-panel {
    position: relative;
    display: grid;
    grid-template-columns: minmax(260px, .8fr) 1.4fr;
    align-items: stretch;
    max-width: 900px;
    min-height: 210px;
    margin: 48px auto 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 28px;
    background: linear-gradient(135deg, #0f2e68 0%, #2563eb 56%, #1e88e5 100%);
    box-shadow: 0 28px 70px rgba(37, 99, 235, .21);
}

.guli-founded-panel::before {
    position: absolute;
    top: -115px;
    right: -55px;
    width: 330px;
    height: 330px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
    box-shadow: 0 0 0 44px rgba(255, 255, 255, .045);
    content: "";
}

.guli-founded-main {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    border-right: 1px solid rgba(255, 255, 255, .16);
    color: #fff;
}

.guli-founded-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    opacity: .82;
}

.guli-days {
    margin-top: 5px;
    font-size: 58px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    text-shadow: 0 8px 30px rgba(8, 30, 75, .25);
}

.guli-days-unit {
    margin-top: 2px;
    font-size: 16px;
    font-weight: 700;
    opacity: .88;
}

.guli-founded-metrics {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: center;
    gap: 12px;
    padding: 26px;
}

.guli-founded-metrics > div {
    display: flex;
    min-height: 66px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 12px 17px;
    border: 1px solid rgba(255, 255, 255, .15);
    border-radius: 15px;
    color: #fff;
    background: rgba(255, 255, 255, .1);
    backdrop-filter: blur(8px);
}

.guli-founded-metrics strong {
    font-size: 23px;
    line-height: 1.1;
}

.guli-founded-metrics span {
    margin-top: 5px;
    font-size: 12px;
    opacity: .76;
}

.guli-section-heading {
    max-width: 1080px;
    margin: 0 auto 64px;
    text-align: center;
}

.guli-section-heading > span {
    color: var(--history-blue);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 4px;
}

.guli-section-heading h2 {
    margin: 9px 0 0;
    color: var(--history-navy);
    font-size: 38px;
    font-weight: 800;
    line-height: 1.25;
}

.guli-section-heading p {
    margin: 12px 0 0;
    color: var(--history-muted);
    font-size: 14px;
}

.guli-timeline {
    position: relative;
    max-width: 1080px;
    margin: 0 auto;
}

.guli-timeline::before {
    position: absolute;
    top: 18px;
    bottom: 18px;
    left: 50%;
    width: 2px;
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(37, 99, 235, .1), #60a5fa 15%, #2563eb 75%, #7c3aed 100%);
    content: "";
    transform: translateX(-50%);
}

.guli-item {
    --era-color: #2563eb;
    --era-soft: #eff6ff;
    position: relative;
    display: flex;
    width: 100%;
    margin-bottom: 74px;
    opacity: 0;
    transform: translateY(35px);
    transition: opacity .75s ease, transform .75s cubic-bezier(.16, 1, .3, 1);
}

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

.guli-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.guli-item-left {
    justify-content: flex-start;
}

.guli-item-right {
    justify-content: flex-end;
}

.guli-era-build {
    --era-color: #0891b2;
    --era-soft: #ecfeff;
}

.guli-era-growth {
    --era-color: #4f46e5;
    --era-soft: #eef2ff;
}

.guli-era-brand {
    --era-color: #c47a08;
    --era-soft: #fffbeb;
}

.guli-era-ai {
    --era-color: #7c3aed;
    --era-soft: #f5f3ff;
}

.guli-node {
    position: absolute;
    z-index: 4;
    top: 34px;
    left: 50%;
    display: flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border: 5px solid #f8fafc;
    border-radius: 50%;
    color: #fff;
    background: var(--era-color);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, .16), 0 8px 24px rgba(37, 99, 235, .2);
    transform: translateX(-50%);
}

.guli-node i {
    font-size: 13px;
}

.guli-card {
    position: relative;
    width: calc(50% - 46px);
    max-width: 500px;
    overflow: hidden;
    border: 1px solid var(--history-border);
    border-top: 4px solid var(--era-color);
    border-radius: 22px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 17px 48px rgba(15, 23, 42, .075);
    transition: transform .32s ease, box-shadow .32s ease, border-color .32s ease;
}

.guli-card::after {
    position: absolute;
    top: 51px;
    width: 46px;
    height: 1px;
    background: rgba(37, 99, 235, .25);
    content: "";
}

.guli-item-left .guli-card::after {
    right: -47px;
}

.guli-item-right .guli-card::after {
    left: -47px;
}

.guli-card:hover {
    border-color: rgba(37, 99, 235, .28);
    box-shadow: 0 25px 65px rgba(37, 99, 235, .13);
    transform: translateY(-7px);
}

.guli-item-current .guli-card {
    border-color: rgba(124, 58, 237, .25);
    background: linear-gradient(180deg, #fff 0%, #fbfaff 100%);
    box-shadow: 0 24px 70px rgba(124, 58, 237, .13);
}

.guli-current-ribbon {
    position: absolute;
    z-index: 3;
    top: 18px;
    right: 18px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 11px;
    border: 1px solid rgba(255, 255, 255, .36);
    border-radius: 999px;
    color: #fff;
    background: rgba(15, 23, 42, .74);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.1px;
    backdrop-filter: blur(8px);
}

.guli-current-ribbon span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #22d3ee;
    box-shadow: 0 0 0 4px rgba(34, 211, 238, .17);
}

.guli-img-box {
    position: relative;
    display: flex;
    width: 100%;
    height: 220px;
    min-height: 160px;
    max-height: 280px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid #e8eef6;
    background:
        radial-gradient(circle at 50% 48%, rgba(255, 255, 255, .96), rgba(241, 245, 249, .84) 55%, rgba(226, 232, 240, .72) 100%),
        linear-gradient(135deg, #eff6ff, #f8fafc);
}

.guli-img-box::before {
    position: absolute;
    inset: 14px;
    border: 1px solid rgba(148, 163, 184, .12);
    border-radius: 12px;
    content: "";
    pointer-events: none;
}

.guli-img-box img {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    padding: 12px;
    object-fit: contain;
    object-position: center;
    transition: transform .55s cubic-bezier(.16, 1, .3, 1);
}

.guli-card:hover .guli-img-box img {
    transform: scale(1.018);
}

.guli-card-body {
    padding: 24px 25px 27px;
}

.guli-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.guli-year,
.guli-phase {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
}

.guli-year {
    min-height: 34px;
    padding: 0 14px;
    color: var(--era-color);
    background: var(--era-soft);
    font-size: 17px;
    font-weight: 800;
    letter-spacing: .2px;
}

.guli-phase {
    gap: 6px;
    color: var(--history-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
}

.guli-phase i {
    color: var(--era-color);
}

.guli-card h3 {
    margin: 16px 0 0;
    color: var(--history-navy);
    font-size: 21px;
    font-weight: 800;
    line-height: 1.45;
}

.guli-achievements {
    margin: 18px 0 0;
    padding: 17px 0 0;
    border-top: 1px solid #edf1f6;
    list-style: none;
}

.guli-achievements li {
    position: relative;
    margin: 0 0 12px;
    padding-left: 22px;
    color: #475569;
    font-size: 13px;
    line-height: 1.75;
}

.guli-achievements li:last-child {
    margin-bottom: 0;
}

.guli-achievements li::before {
    position: absolute;
    top: .62em;
    left: 1px;
    width: 8px;
    height: 8px;
    border: 2px solid #fff;
    border-radius: 50%;
    background: var(--era-color);
    box-shadow: 0 0 0 3px var(--era-soft);
    content: "";
}

.guli-history-vision {
    display: flex;
    max-width: 930px;
    align-items: center;
    gap: 22px;
    margin: 88px auto 0;
    padding: 30px 34px;
    border: 1px solid rgba(37, 99, 235, .13);
    border-radius: 22px;
    background: linear-gradient(115deg, #eff6ff 0%, #fff 55%, #f5f3ff 100%);
    box-shadow: 0 18px 50px rgba(37, 99, 235, .08);
}

.guli-vision-icon {
    display: flex;
    width: 58px;
    height: 58px;
    flex: 0 0 58px;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    box-shadow: 0 12px 28px rgba(37, 99, 235, .22);
    font-size: 22px;
}

.guli-history-vision p {
    margin: 0 0 5px;
    color: var(--history-blue);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
}

.guli-history-vision h2 {
    margin: 0;
    color: var(--history-navy);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.5;
}

@media (max-width: 991px) {
    .guli-history-shell {
        padding-right: 22px;
        padding-left: 22px;
    }

    .guli-history-hero > h2 {
        font-size: 38px;
    }

    .guli-history-lead {
        white-space: normal;
    }

    .guli-card {
        width: calc(50% - 37px);
    }

    .guli-card::after {
        width: 37px;
    }

    .guli-item-left .guli-card::after {
        right: -38px;
    }

    .guli-item-right .guli-card::after {
        left: -38px;
    }

    .guli-card-body {
        padding: 22px 20px 24px;
    }
}

@media (max-width: 767px) {
    .guli-history-v3 {
        margin: -20px;
        border-radius: 18px;
    }

    .guli-history-shell {
        padding: 54px 15px 62px;
    }

    .guli-history-hero {
        margin-bottom: 62px;
    }

    .guli-history-hero > h2 {
        font-size: 30px;
        letter-spacing: -.4px;
    }

    .guli-history-lead {
        font-size: 14px;
        line-height: 1.8;
    }

    .guli-founded-panel {
        display: block;
        margin-top: 34px;
        border-radius: 22px;
    }

    .guli-founded-main {
        padding: 28px 20px 22px;
        border-right: 0;
        border-bottom: 1px solid rgba(255, 255, 255, .15);
    }

    .guli-days {
        font-size: 48px;
    }

    .guli-founded-metrics {
        gap: 9px;
        padding: 16px;
    }

    .guli-founded-metrics > div {
        min-height: 60px;
        padding: 10px 13px;
    }

    .guli-section-heading {
        margin-bottom: 44px;
    }

    .guli-section-heading h2 {
        font-size: 30px;
    }

    .guli-timeline::before {
        left: 17px;
        transform: none;
    }

    .guli-item,
    .guli-item-left,
    .guli-item-right {
        display: block;
        margin-bottom: 46px;
        padding-left: 42px;
    }

    .guli-node {
        top: 28px;
        left: 17px;
        width: 34px;
        height: 34px;
        border-width: 4px;
    }

    .guli-node i {
        font-size: 11px;
    }

    .guli-card {
        width: 100%;
        max-width: none;
        border-radius: 18px;
    }

    .guli-card::after {
        display: none;
    }

    .guli-img-box {
        height: 210px;
    }

    .guli-card-body {
        padding: 21px 18px 23px;
    }

    .guli-card h3 {
        font-size: 19px;
    }

    .guli-achievements li {
        font-size: 13px;
    }

    .guli-history-vision {
        align-items: flex-start;
        gap: 15px;
        margin-top: 60px;
        padding: 24px 20px;
    }

    .guli-vision-icon {
        width: 46px;
        height: 46px;
        flex-basis: 46px;
        border-radius: 14px;
        font-size: 18px;
    }

    .guli-history-vision h2 {
        font-size: 17px;
    }
}

@media (max-width: 420px) {
    .guli-history-shell {
        padding-right: 10px;
        padding-left: 10px;
    }

    .guli-eyebrow {
        font-size: 10px;
        letter-spacing: 1.5px;
    }

    .guli-history-hero > h2 {
        font-size: 26px;
    }

    .guli-founded-metrics strong {
        font-size: 20px;
    }

    .guli-section-heading > span {
        letter-spacing: 2.2px;
    }

    .guli-item,
    .guli-item-left,
    .guli-item-right {
        padding-left: 36px;
    }

    .guli-timeline::before,
    .guli-node {
        left: 13px;
    }

    .guli-img-box {
        height: 190px;
    }

    .guli-card-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .guli-current-ribbon {
        top: 13px;
        right: 13px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .guli-item,
    .guli-card,
    .guli-img-box img {
        transition: none;
    }
}