/*
 * 洞察·主题知识索引
 * 以“中兴新云 → 议题 → 研究 → 案例 → 咨询 → 产品”为页面签名。
 */

.ztc-insights-topics {
    --itx-banner-blue: var(--ztc-banner-authority);
    --itx-soft-blue:
        radial-gradient(circle at 92% 8%, rgba(97, 204, 240, .19), transparent 30%),
        linear-gradient(135deg, #e9f4fa 0%, #f7fbfd 62%, #fff 100%);
    --itx-ink: #2d3142;
    --itx-muted: #58595b;
    --itx-line: #e4e7ec;
    position: relative;
    overflow: clip;
    color: var(--itx-ink);
    background: #fff;
}

.ztc-insights-topics *,
.ztc-insights-topics *::before,
.ztc-insights-topics *::after { box-sizing: border-box; }

.itx-wrap {
    width: min(1220px, calc(100% - 48px));
    margin-inline: auto;
}


.itx-eyebrow,
.itx-kicker {
    margin: 0;
    font: 700 12px/1.4 var(--ztc-sans);
    letter-spacing: .18em;
    text-transform: uppercase;
}

.itx-eyebrow { color: var(--ztc-brand-cyan); }
.itx-kicker { color: var(--ztc-action); }

.itx-hero {
    position: relative;
    min-height: 690px;
    overflow: hidden;
    color: #fff;
    background: var(--ztc-banner-luminous);
}

.itx-hero-grid {
    position: absolute;
    inset: 0;
    opacity: .34;
    background-image:
        linear-gradient(90deg, transparent calc(50% - .5px), rgba(255, 255, 255, .06) 50%, transparent calc(50% + .5px)),
        linear-gradient(0deg, transparent calc(50% - .5px), rgba(255, 255, 255, .045) 50%, transparent calc(50% + .5px));
    background-size: 170px 170px;
    mask-image: linear-gradient(90deg, transparent, #000 38%, #000);
}

.itx-hero-orbit {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, .11);
    border-radius: 50%;
    pointer-events: none;
}

.itx-hero-orbit--one { width: 620px; height: 620px; right: -190px; top: -220px; }
.itx-hero-orbit--two { width: 410px; height: 410px; right: 80px; bottom: -260px; }

.itx-hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(500px, 1.08fr);
    gap: clamp(56px, 8vw, 104px);
    align-items: center;
    min-height: 690px;
    padding: 168px 0 88px;
}

.itx-hero-copy { max-width: 620px; }

.itx-hero h1 {
    max-width: 9em;
    margin: 18px 0 25px;
    color: #fff;
    font-size: var(--ztc-banner-h1-feature);
    line-height: 1.04;
    letter-spacing: -.055em;
    text-wrap: balance;
}

.itx-hero-lead {
    max-width: 610px;
    margin: 0;
    color: rgba(255, 255, 255, .83);
    font-size: var(--ztc-banner-lead);
    line-height: 1.85;
    text-wrap: pretty;
}

.itx-hero-actions,
.itx-closing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.itx-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 11px 25px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    transition: transform .25s ease, border-color .25s ease, background-color .25s ease, color .25s ease;
}

.itx-button:hover,
.itx-button:focus-visible { transform: translateY(-2px); }
.itx-button--solid { color: var(--ztc-action); background: #fff; }
.itx-button--solid:hover { color: #fff; background: var(--ztc-action); }
.itx-button--ghost { color: #fff; border-color: rgba(255, 255, 255, .46); background: rgba(255, 255, 255, .04); }
.itx-button--ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .12); }

.itx-knowledge-map {
    position: relative;
    width: 100%;
    margin: 0;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, .17);
    border-radius: 28px;
    background: rgba(7, 32, 60, .24);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
}

.itx-knowledge-map figcaption {
    margin-bottom: 24px;
    color: rgba(255, 255, 255, .68);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .12em;
}

.itx-map-brand {
    position: relative;
    width: min(280px, 78%);
    margin: 0 auto 52px;
    padding: 18px 22px;
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 18px;
    text-align: center;
    background: rgba(255, 255, 255, .1);
}

.itx-map-brand::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    width: 1px;
    height: 42px;
    background: rgba(97, 204, 240, .72);
}

.itx-map-brand small,
.itx-map-flow small {
    display: block;
    color: var(--ztc-brand-cyan);
    font-size:var(--ztc-fs-micro);
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: .12em;
}

.itx-map-brand strong {
    display: block;
    margin-top: 5px;
    color: #fff;
    font: 600 25px/1.25 var(--ztc-serif);
    letter-spacing: .03em;
}

.itx-map-flow {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.itx-map-flow::before {
    content: "";
    position: absolute;
    z-index: 0;
    top: 50%;
    left: 7%;
    right: 7%;
    height: 1px;
    background: linear-gradient(90deg, rgba(97, 204, 240, .15), rgba(97, 204, 240, .9), rgba(97, 204, 240, .15));
    background-size: 180% 100%;
    animation: itx-flow 5s linear infinite;
}

.itx-map-flow li {
    position: relative;
    z-index: 1;
    min-width: 0;
    min-height: 88px;
    padding: 16px 8px;
    border: 1px solid rgba(0, 103, 180, .16);
    border-radius: 15px;
    text-align: center;
    background: #fff;
}

.itx-map-flow li::after {
    content: "";
    position: absolute;
    top: -5px;
    left: 50%;
    width: 9px;
    height: 9px;
    border: 2px solid #fff;
    border-radius: 50%;
    background: var(--ztc-brand-cyan);
    transform: translateX(-50%);
}

.itx-map-flow strong {
    display: block;
    margin-top: 8px;
    color: var(--ztc-action);
    font: 600 18px/1.2 var(--ztc-serif);
}

@keyframes itx-flow {
    to { background-position: -180% 0; }
}

.itx-section { padding: 112px 0; }

.itx-section-heading {
    display: grid;
    grid-template-columns: minmax(210px, .44fr) minmax(0, 1fr);
    gap: clamp(46px, 8vw, 112px);
    align-items: start;
    margin-bottom: 58px;
}

.itx-section-heading > div {
    display: grid;
    grid-template-columns: minmax(0, .92fr) minmax(300px, .7fr);
    gap: clamp(34px, 5vw, 74px);
    align-items: end;
}

.itx-section-heading h2,
.itx-path-intro h2 {
    margin: 0;
    color: var(--itx-ink);
    font-size: clamp(35px, 3.8vw, 50px);
    line-height: 1.17;
    letter-spacing: -.04em;
    text-wrap: balance;
}

.itx-section-heading > div > p,
.itx-path-intro > p:last-child {
    margin: 0;
    color: var(--itx-muted);
    font-size: 16px;
    line-height: 1.9;
    text-wrap: pretty;
}

.itx-topic-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
}

.itx-topic-card {
    position: relative;
    display: flex;
    grid-column: span 4;
    flex-direction: column;
    min-height: 300px;
    padding: 31px;
    overflow: hidden;
    border: 1px solid var(--itx-line);
    border-radius: 20px;
    background: #fff;
    transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}

.itx-topic-card:nth-child(5),
.itx-topic-card:nth-child(6) { grid-column: span 6; }

.itx-topic-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: var(--ztc-brand-primary);
    transform: scaleX(.18);
    transform-origin: 0 50%;
    transition: transform .35s ease;
}

.itx-topic-card:hover,
.itx-topic-card:focus-visible {
    transform: translateY(-5px);
    border-color: rgba(0, 103, 180, .35);
    box-shadow: 0 18px 44px rgba(10, 58, 102, .12);
}

.itx-topic-card:hover::before,
.itx-topic-card:focus-visible::before { transform: scaleX(1); }

.itx-topic-card--featured {
    grid-column: 1 / -1;
    min-height: 330px;
    padding: clamp(36px, 5vw, 58px);
    color: #fff;
    background: var(--itx-banner-blue);
    border-color: transparent;
}

.itx-topic-card--featured::after {
    content: "FINANCIAL DIGITAL INTELLIGENCE";
    position: absolute;
    right: 4%;
    bottom: -18px;
    max-width: 54%;
    color: rgba(255, 255, 255, .055);
    font: 700 clamp(42px, 6.5vw, 86px)/.83 var(--ztc-sans);
    letter-spacing: -.06em;
    text-align: right;
    pointer-events: none;
}

.itx-topic-card-meta {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    min-height: 25px;
}

.itx-topic-card-meta small {
    color: var(--ztc-action);
    font-size:var(--ztc-fs-micro);
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: .13em;
}

.itx-topic-card-meta em {
    padding: 4px 9px;
    color: var(--ztc-info-ink);
    border-radius: 999px;
    background: var(--ztc-tint-info-bg);
    font-size: 11px;
    font-style: normal;
    font-weight: 700;
    line-height: 1.3;
}

.itx-topic-card > strong {
    position: relative;
    z-index: 1;
    display: block;
    margin: 32px 0 13px;
    color: var(--itx-ink);
    font: 600 clamp(26px, 2.5vw, 34px)/1.2 var(--ztc-serif);
    letter-spacing: -.025em;
}

.itx-topic-card > p {
    position: relative;
    z-index: 1;
    max-width: 620px;
    margin: 0;
    color: var(--itx-muted);
    font-size:16px;
    line-height: 1.8;
    text-wrap: pretty;
}

.itx-topic-card-link {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: auto;
    padding-top: 28px;
    color: var(--ztc-action);
    font-size: 13px;
    font-weight: 700;
}

.itx-topic-card-link svg { transition: transform .25s ease; }
.itx-topic-card:hover .itx-topic-card-link svg { transform: translateX(4px); }

.itx-topic-card--featured .itx-topic-card-meta small,
.itx-topic-card--featured > strong,
.itx-topic-card--featured .itx-topic-card-link { color: #fff; }
.itx-topic-card--featured > p { color: rgba(255, 255, 255, .78); }
.itx-topic-card--featured > strong { margin-top: 42px; font-size: clamp(38px, 5vw, 60px); }

.itx-empty-state {
    padding: 44px;
    border: 1px solid var(--itx-line);
    border-radius: 20px;
    background: var(--itx-soft-blue);
}
.itx-empty-state h3 { margin: 0 0 12px; font-size:var(--ztc-fs-h2); }
.itx-empty-state p { margin: 0 0 22px; color: var(--itx-muted); }
.itx-inline-link { display: inline-flex; align-items: center; gap: 7px; color: var(--ztc-action); font-weight: 700; }

.itx-path {
    background: var(--itx-soft-blue);
    border-block: 1px solid rgba(0, 103, 180, .08);
}

.itx-path-layout {
    display: grid;
    grid-template-columns: minmax(300px, .68fr) minmax(0, 1.32fr);
    gap: clamp(70px, 10vw, 138px);
    align-items: start;
}

.itx-path-intro {
    position: sticky;
    top: 148px;
}

.itx-path-intro h2 { margin: 16px 0 23px; }

.itx-path-steps {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: none;
}

.itx-path-steps li {
    position: relative;
    display: grid;
    grid-template-columns: minmax(88px, .28fr) minmax(0, 1fr);
    gap: 30px;
    padding: 32px 0 34px;
    border-top: 1px solid rgba(7, 29, 52, .17);
}

.itx-path-steps li:last-child { border-bottom: 1px solid rgba(7, 29, 52, .17); }

.itx-path-steps li::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 0;
    width: 48px;
    height: 2px;
    background: var(--ztc-brand-primary);
}

.itx-path-steps > li > span {
    color: var(--ztc-action);
    font: 600 21px/1.35 var(--ztc-serif);
    white-space: nowrap;
}

.itx-path-steps strong {
    display: block;
    margin-bottom: 8px;
    color: var(--itx-ink);
    font: 600 22px/1.35 var(--ztc-serif);
}

.itx-path-steps p {
    margin: 0;
    color: var(--itx-muted);
    font-size:16px;
    line-height: 1.85;
    text-wrap: pretty;
}

.itx-closing {
    position: relative;
    overflow: hidden;
    padding: 92px 0;
    color: #fff;
    background: var(--itx-banner-blue);
}

.itx-closing::after {
    content: "";
    position: absolute;
    width: 480px;
    height: 480px;
    right: -170px;
    top: -250px;
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 50%;
}

.itx-closing-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 64px;
    align-items: end;
}

.itx-closing h2 {
    max-width: 760px;
    margin: 15px 0 0;
    color: #fff;
    font-size: clamp(34px, 4vw, 51px);
    line-height: 1.18;
    letter-spacing: -.04em;
    text-wrap: balance;
}

.itx-closing-actions { justify-content: flex-end; margin-top: 0; }

@media (max-width: 1100px) {
    .itx-hero-layout { grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr); gap: 42px; }
    .itx-knowledge-map { padding: 24px; }
    .itx-map-flow { gap: 8px; }
    .itx-map-flow li { min-height: 82px; padding-inline: 4px; }
    .itx-map-flow small { font-size:var(--ztc-fs-micro); letter-spacing: .08em; }
    .itx-section-heading { grid-template-columns: 1fr; gap: 18px; }
    .itx-topic-card { grid-column: span 6; }
    .itx-topic-card:nth-child(6) { grid-column: span 12; }
    .itx-topic-card--featured { grid-column: 1 / -1; }
    .itx-closing-layout { grid-template-columns: 1fr; gap: 38px; }
    .itx-closing-actions { justify-content: flex-start; }
}

@media (max-width: 820px) {
    .itx-wrap { width: min(100% - 40px, 720px); }
    .itx-hero { min-height: 0; }
    .itx-hero-layout {
        grid-template-columns: 1fr;
        gap: 58px;
        min-height: 0;
        padding: 158px 0 76px;
    }
    .itx-hero-copy { max-width: 690px; }
    .itx-knowledge-map { width: min(620px, 100%); }
    .itx-section { padding: 88px 0; }
    .itx-section-heading > div { grid-template-columns: 1fr; gap: 23px; }
    .itx-path-layout { grid-template-columns: 1fr; gap: 48px; }
    .itx-path-intro { position: static; }
}

@media (max-width: 620px) {
    .itx-wrap { width: calc(100% - 32px); }
    .itx-hero-layout { padding: 144px 0 64px; }
    .itx-hero h1 { max-width: 8em; font-size: var(--ztc-banner-h1-feature); }
    .itx-hero-lead { font-size: var(--ztc-banner-lead); line-height: 1.8; }
    .itx-hero-actions { align-items: stretch; }
    .itx-hero-actions .itx-button { flex: 1 1 170px; }
    .itx-knowledge-map { padding: 22px 18px; border-radius: 22px; }
    .itx-map-brand { margin-bottom: 38px; }
    .itx-map-brand::after { height: 30px; }
    .itx-map-flow { grid-template-columns: 1fr; gap: 10px; }
    .itx-map-flow::before {
        top: 8%;
        bottom: 8%;
        left: 50%;
        right: auto;
        width: 1px;
        height: auto;
        background: linear-gradient(180deg, rgba(97, 204, 240, .15), rgba(97, 204, 240, .9), rgba(97, 204, 240, .15));
        background-size: 100% 180%;
    }
    .itx-map-flow li {
        width: min(260px, 84%);
        min-height: 0;
        margin-inline: auto;
        padding: 13px 16px;
    }
    .itx-map-flow li::after { top: 50%; left: -5px; transform: translateY(-50%); }
    .itx-map-flow small,
    .itx-map-flow strong { display: inline; }
    .itx-map-flow strong { margin-left: 10px; font-size:16px; }
    .itx-section { padding: 76px 0; }
    .itx-section-heading { margin-bottom: 38px; }
    .itx-section-heading h2,
    .itx-path-intro h2 { font-size: clamp(31px, 9.5vw, 40px); }
    .itx-topic-grid { grid-template-columns: 1fr; gap: 14px; }
    .itx-topic-card,
    .itx-topic-card:nth-child(5),
    .itx-topic-card:nth-child(6),
    .itx-topic-card--featured {
        grid-column: auto;
        min-height: 280px;
        padding: 26px;
    }
    .itx-topic-card--featured { min-height: 330px; padding: 32px 26px; }
    .itx-topic-card--featured::after { right: 0; max-width: 90%; font-size: 50px; }
    .itx-topic-card > strong { margin-top: 27px; }
    .itx-topic-card--featured > strong { margin-top: 34px; }
    .itx-path-steps li { grid-template-columns: 1fr; gap: 12px; padding: 27px 0 30px; }
    .itx-path-steps > li > span { font-size:20px; }
    .itx-path-steps strong { font-size: 20px; }
    .itx-closing { padding: 72px 0; }
    .itx-closing-actions { align-items: stretch; }
    .itx-closing-actions .itx-button { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .itx-map-flow::before { animation: none; }
    .itx-button,
    .itx-topic-card,
    .itx-topic-card::before,
    .itx-topic-card-link svg { transition: none; }
    .itx-button:hover,
    .itx-button:focus-visible,
    .itx-topic-card:hover,
    .itx-topic-card:focus-visible { transform: none; }
}