/* 客户案例中心 2.0：仅作用于 .cs2-page，不上收公共层。 */
.cs2-page {
    --cs2-ink: var(--ztc-brand-navy, #102a54);
    --cs2-action: var(--ztc-action, #0067b4);
    --cs2-blue: var(--ztc-brand-primary, #008ed3);
    --cs2-paper: #f4f7fb;
    --cs2-line: #dfe7f0;
    --cs2-muted: #65758a;
    --cs2-hero-blue: var(--ztc-banner-authority);
    background: #fff;
    color: var(--ztc-text, #2d3142);
    overflow: clip;
}

.cs2-page *, .cs2-page *::before, .cs2-page *::after { box-sizing: border-box; }
.cs2-page [hidden] { display: none !important; }
.cs2-wrap { position: relative; width: min(100%, 1240px); margin: 0 auto; padding-inline: 32px; }
.cs2-featured, .cs2-finder { scroll-margin-top: 116px; }

/* Hero：左侧事实、右侧点击加载的视频 facade；不自动拉取或播放媒体。 */
.cs2-hero {
    position: relative;
    min-height: 680px;
    padding: 150px 0 78px;
    overflow: hidden;
    color: #fff;
    background: var(--ztc-banner-balanced);
}
.cs2-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: radial-gradient(rgba(255, 255, 255, .09) 1px, transparent 1px);
    background-size: 30px 30px;
    mask-image: linear-gradient(90deg, transparent, #000 58%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 58%, transparent);
    opacity: .42;
}
.cs2-hero-orbit {
    position: absolute;
    border: 1px solid rgba(151, 218, 242, .17);
    border-radius: 50%;
    pointer-events: none;
}
.cs2-hero-orbit--one { width: 720px; height: 720px; right: -205px; top: -250px; border-color: rgba(151, 218, 242, .22); }
.cs2-hero-orbit--two { width: 470px; height: 470px; right: 88px; bottom: -300px; border-color: rgba(151, 218, 242, .2); }
.cs2-hero-layout { display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); gap: 64px; align-items: center; z-index: 1; }
.cs2-hero-copy { min-width: 0; }
.cs2-eyebrow, .cs2-kicker {
    margin: 0 0 18px;
    color: #9edcf1;
    font-size:12px;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
}
.cs2-hero h1 {
    margin: 0 0 18px;
    color: #fff;
    font-family: var(--ztc-font-serif, var(--ztc-serif));
    font-size: var(--ztc-banner-h1-feature);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -.035em;
    text-wrap: balance;
}
.cs2-lead {
    max-width: 610px;
    margin: 0;
    color: rgba(255, 255, 255, .9);
    font-size: var(--ztc-banner-lead);
    line-height: 1.85;
    text-wrap: pretty;
}
.cs2-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 44px 0 0; }
.cs2-stats div { min-width: 0; padding-left: 16px; border-left: 1px solid rgba(158, 220, 241, .4); }
.cs2-stats dt {
    margin: 0 0 7px;
    color: #fff;
    font-family: var(--ztc-font-serif, var(--ztc-serif));
    font-size: clamp(31px, 3vw, 44px);
    font-weight: 700;
    line-height: 1;
}
.cs2-stats sup { color: #8fdaef; font-family: var(--ztc-sans); font-size: .5em; vertical-align: .6em; }
.cs2-stats dd { margin: 0; color: rgba(255, 255, 255, .86); font-size:12px; line-height: 1.55; }
.cs2-stat-note { margin: 17px 0 0; color: rgba(255, 255, 255, .84); font-size:12px; line-height: 1.6; }
.cs2-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 31px; }
.cs2-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 24px;
    border: 1px solid transparent;
    border-radius: 999px;
    font: 600 14px/1 var(--ztc-sans);
    cursor: pointer;
    transition: transform .22s ease, background-color .22s ease, border-color .22s ease;
}
.cs2-btn:hover { transform: translateY(-2px); }
.cs2-btn--primary { background: #fff; color: var(--cs2-ink); }
.cs2-btn--ghost { border-color: rgba(255, 255, 255, .5); background: transparent; color: #fff; }
.cs2-btn--ghost:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }

.cs2-hero-media {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    min-width: 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .24);
    border-radius: 28px;
    background: linear-gradient(135deg, #0a3a66, #0067b4);
    box-shadow: 0 24px 64px rgba(1, 25, 49, .28);
    color: #fff;
    cursor: pointer;
    text-align: left;
    transition: transform .32s ease, border-color .32s ease, box-shadow .32s ease;
}
.cs2-hero-media:hover { transform: translateY(-4px); border-color: rgba(255, 255, 255, .58); box-shadow: 0 30px 72px rgba(1, 25, 49, .35); }
.cs2-hero-media > img { display: block; width: 100%; height: 100%; object-fit: cover; }
.cs2-media-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 20, 39, .03) 42%, rgba(4, 20, 39, .78)); }
.cs2-media-caption { position: absolute; z-index: 1; left: 26px; right: 26px; bottom: 24px; display: flex; align-items: center; gap: 14px; }
.cs2-media-caption small { display: block; margin-bottom: 5px; color: rgba(255, 255, 255, .65); font-size:var(--ztc-fs-micro); letter-spacing: .17em; }
.cs2-media-caption strong { display: block; color: #fff; font-family: var(--ztc-font-serif, var(--ztc-serif)); font-size: 18px; }
.cs2-media-play { display: grid; place-items: center; width: 52px; height: 52px; flex: none; border: 1px solid rgba(255, 255, 255, .65); border-radius: 50%; background: rgba(5, 36, 66, .74); }

/* 第二屏：一主两辅，用已入库 Logo、案例标题和指标构成证据。 */
.cs2-featured { padding: 94px 0 84px; background: linear-gradient(180deg, #f5f8fc, #fff); }
.cs2-section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 460px); gap: 60px; align-items: end; margin-bottom: 42px; }
.cs2-section-head h2 {
    max-width: 700px;
    margin: 0;
    color: var(--cs2-ink);
    font-family: var(--ztc-font-serif, var(--ztc-serif));
    font-size: clamp(31px, 3.1vw, 42px);
    line-height: 1.24;
    letter-spacing: -.025em;
    text-wrap: balance;
}
.cs2-section-head > p { margin: 0; color: var(--cs2-muted); font-size:16px; line-height: 1.85; text-wrap: pretty; }
.cs2-kicker { margin-bottom: 12px; color: var(--cs2-action); }
.cs2-feature-grid { display: grid; grid-template-columns: 1.12fr .88fr; grid-template-rows: repeat(2, minmax(270px, 1fr)); gap: 22px; }
.cs2-feature-card {
    position: relative;
    min-height: 270px;
    overflow: hidden;
    border-radius: 22px;
    color: #fff;
    text-decoration: none;
    background: var(--cs2-hero-blue);
    isolation: isolate;
    transition: transform .28s ease, box-shadow .28s ease;
}
.cs2-feature-card:hover { transform: translateY(-4px); box-shadow: 0 22px 50px rgba(16, 42, 84, .17); }
.cs2-feature-card--main { grid-row: 1 / 3; min-height: 562px; }
.cs2-feature-cover { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cs2-feature-card:hover .cs2-feature-cover { transform: scale(1.035); }
.cs2-feature-overlay { position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6, 28, 52, .18), rgba(6, 28, 52, .94) 88%); }
.cs2-feature-card:not(.cs2-feature-card--main) .cs2-feature-overlay { background: linear-gradient(90deg, rgba(6, 28, 52, .91) 0%, rgba(6, 28, 52, .72) 58%, rgba(6, 28, 52, .34)); }
.cs2-feature-content { position: relative; display: flex; flex-direction: column; min-height: inherit; height: 100%; padding: 28px; }
.cs2-feature-card--main .cs2-feature-content { padding: 34px; }
.cs2-feature-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.cs2-logo-tile { display: grid; place-items: center; width: 78px; height: 60px; padding: 9px 12px; border-radius: 12px; background: #fff; }
.cs2-logo-tile img { max-width: 100%; max-height: 100%; object-fit: contain; }
.cs2-logo-tile--text { color: var(--cs2-ink); font-size: 12px; font-weight: 700; }
.cs2-feature-industry { padding: 6px 11px; border: 1px solid rgba(255, 255, 255, .38); border-radius: 999px; color: rgba(255, 255, 255, .82); font-size:12px; }
.cs2-feature-body { display: flex; flex-direction: column; gap: 7px; margin-top: auto; }
.cs2-feature-company { color: #fff; font-family: var(--ztc-font-serif, var(--ztc-serif)); font-size:24px; line-height: 1.3; }
.cs2-feature-title { max-width: 620px; color: rgba(255, 255, 255, .74); font-size: 13px; line-height: 1.65; }
.cs2-feature-proof { display: flex; align-items: baseline; gap: 12px; margin-top: 18px; }
.cs2-feature-proof strong { color: #fff; font-family: var(--ztc-font-serif, var(--ztc-serif)); font-size: 34px; line-height: 1; }
.cs2-feature-card--main .cs2-feature-proof strong { font-size: clamp(48px, 5vw, 72px); }
.cs2-feature-proof span { max-width: 260px; color: #a8dff1; font-size:12px; line-height: 1.5; }
.cs2-feature-link { margin-top: 18px; color: rgba(255, 255, 255, .8); font-size: 13px; font-weight: 600; }
.cs2-source-note { margin: 20px 0 0; color: #7d8a9c; font-size: 12px; line-height: 1.7; }

/* 第三屏：行业主轴 + 业务/产品渐进筛选。 */
.cs2-finder { padding: 88px 0 108px; background: #fff; }
.cs2-section-head--finder { margin-bottom: 34px; }
.cs2-filter-panel {
    padding: 28px 30px;
    border: 1px solid #dde8f2;
    border-radius: 20px;
    background: linear-gradient(135deg, #f8fbfe 0%, #f2f7fc 100%);
    box-shadow: 0 16px 46px rgba(16, 42, 84, .055);
}
.cs2-filter-row { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 18px; align-items: start; }
.cs2-filter-row--secondary { padding-top: 18px; }
.cs2-filter-label { padding-top: 12px; color: var(--cs2-ink); font-size: 14px; font-weight: 700; }
.cs2-filter-controls { display: flex; flex-wrap: wrap; gap: 9px; min-width: 0; }
.cs2-filter-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 46px;
    padding: 0 16px;
    border: 1px solid #d9e3ed;
    border-radius: 999px;
    background: #fff;
    color: #43536b;
    font: 500 13px/1.2 var(--ztc-sans);
    cursor: pointer;
    text-decoration: none;
    transition: border-color .2s ease, color .2s ease, background-color .2s ease, transform .2s ease;
}
.cs2-filter-chip small {
    display: inline-grid;
    min-width: 20px;
    min-height: 20px;
    padding-inline: 5px;
    place-items: center;
    border-radius: 999px;
    background: #f1f5f9;
    color: #76869a;
    font-size:var(--ztc-fs-micro);
}
.cs2-filter-chip:hover { border-color: rgba(0, 103, 180, .45); color: var(--cs2-action); transform: translateY(-1px); }
.cs2-filter-chip.is-active, .cs2-filter-chip[aria-current="page"] { border-color: var(--cs2-action); background: var(--cs2-action); color: #fff; }
.cs2-filter-chip.is-active small, .cs2-filter-chip[aria-current="page"] small { background: rgba(255, 255, 255, .17); color: rgba(255, 255, 255, .88); }
.cs2-filter-chip--secondary { background: transparent; }
.cs2-more-filters { margin-top: 20px; border-top: 1px solid var(--cs2-line); }
.cs2-more-filters summary {
    display: flex;
    align-items: center;
    min-height: 48px;
    width: max-content;
    max-width: 100%;
    color: var(--cs2-action);
    font-size:14px;
    font-weight: 650;
    cursor: pointer;
    list-style: none;
}
.cs2-more-filters summary::-webkit-details-marker { display: none; }
.cs2-more-filters summary::after { content: "+"; display: grid; place-items: center; width: 24px; height: 24px; margin-left: 8px; border: 1px solid #c8d8e7; border-radius: 50%; }
.cs2-more-filters[open] summary::after { content: "−"; }

.cs2-results-status { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin: 36px 0 22px; }
.cs2-results-status > div { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.cs2-selected-list { color: var(--cs2-muted); font-size: 13px; }
.cs2-result-total { color: #7a8899; font-size: 12px; }
.cs2-clear {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid #cdd9e5;
    border-radius: 999px;
    background: #fff;
    color: var(--cs2-action);
    font: 600 13px/1 var(--ztc-sans);
    cursor: pointer;
}

.cs2-results-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.cs2-result-card { min-width: 0; }
.cs2-result-link {
    display: flex;
    height: 100%;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--cs2-line);
    border-radius: 18px;
    background: #fff;
    color: inherit;
    text-decoration: none;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.cs2-result-link:hover { transform: translateY(-4px); border-color: rgba(0, 103, 180, .35); box-shadow: 0 18px 44px rgba(16, 42, 84, .1); }
.cs2-result-media { position: relative; display: block; height: 158px; overflow: hidden; background: #eaf0f6; }
.cs2-result-media > picture { display: block; width: 100%; height: 100%; }
.cs2-result-media > picture > img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.cs2-result-link:hover .cs2-result-media > picture > img { transform: scale(1.035); }
.cs2-result-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8, 33, 60, .02), rgba(8, 33, 60, .42)); }
/* 2026-09-03 Haning：客户 logo 均为标准圆形，框架改圆形避免裁切 */
.cs2-result-logo { position: absolute; z-index: 1; left: 14px; bottom: 12px; display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; background: #fff; box-shadow: 0 7px 18px rgba(8, 33, 60, .18); overflow: hidden; }
.cs2-result-logo picture, .cs2-result-logo img { display: block; width: 100%; height: 100%; }
.cs2-result-logo img { object-fit: cover; }
.cs2-result-industry { position: absolute; z-index: 1; right: 12px; bottom: 12px; padding: 6px 10px; border-radius: 999px; background: rgba(7, 32, 60, .76); color: #fff; font-size:var(--ztc-fs-micro); }
.cs2-result-body { display: flex; flex: 1; min-width: 0; flex-direction: column; padding: 19px; }
.cs2-result-company { color: var(--cs2-ink); font-family: var(--ztc-font-serif, var(--ztc-serif)); font-size:20px; line-height: 1.35; }
.cs2-result-title { margin-top: 7px; color: #53647b; font-size: 13px; font-weight: 600; line-height: 1.65; }
/* 2026-09-03 Haning：去掉「实践证据」小标，大数字与小字说明基线对齐横排 */
.cs2-result-proof { display: flex; align-items: baseline; gap: 10px; margin-top: 16px; padding: 13px 14px; border-radius: 12px; background: #f3f7fb; }
/* 2026-09-03 Haning：亮点数字不得大过客户标题（20px），收敛到 18px */
.cs2-result-proof strong { color: var(--cs2-action); font-family: var(--ztc-font-serif, var(--ztc-serif)); font-size: 18px; line-height: 1.25; }
.cs2-result-proof span { color: #5f7087; font-size:12px; line-height: 1.45; }
.cs2-result-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 15px; }
.cs2-result-tags em { padding: 4px 8px; border: 1px solid #dce5ee; border-radius: 999px; color: #708097; font-size:var(--ztc-fs-micro); font-style: normal; }
.cs2-result-cta { margin-top: auto; padding-top: 17px; color: var(--cs2-action); font-size:12px; font-weight: 700; }
.cs2-empty { padding: 54px 20px; text-align: center; color: var(--cs2-muted); }
.cs2-empty strong, .cs2-empty span { display: block; }
.cs2-empty strong { margin-bottom: 8px; color: var(--cs2-ink); font-size:16px; }
.cs2-pagination { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; margin-top: 36px; }
.cs2-page-link { display: inline-grid; min-width: 44px; min-height: 44px; padding: 0 12px; place-items: center; border: 1px solid var(--cs2-line); border-radius: 12px; background: #fff; color: var(--cs2-action); font: 650 13px/1 var(--ztc-sans); text-decoration: none; transition: color .2s, border-color .2s, background .2s; }
.cs2-page-link:hover, .cs2-page-link:focus-visible { border-color: var(--cs2-action); }
.cs2-page-link.is-current { border-color: var(--cs2-action); background: var(--cs2-action); color: #fff; }
.cs2-page-link--edge { padding-inline: 18px; }

.cs2-page button:focus-visible, .cs2-page a:focus-visible, .cs2-page summary:focus-visible { outline: 3px solid rgba(0, 103, 180, .42); outline-offset: 4px; }
.cs2-feature-card:focus-visible, .cs2-result-link:focus-visible { transform: translateY(-3px); border-color: rgba(0, 103, 180, .45); box-shadow: 0 18px 44px rgba(16, 42, 84, .12); }

@media (max-width: 1080px) {
    .cs2-hero { min-height: auto; }
    .cs2-hero-layout { grid-template-columns: 1fr; gap: 54px; }
    .cs2-hero-copy { max-width: 760px; }
    .cs2-hero-media { max-width: 840px; }
    .cs2-feature-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; }
    .cs2-feature-card--main { grid-column: 1 / 3; grid-row: auto; min-height: 500px; }
    .cs2-results-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
    .cs2-results-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
    .cs2-wrap { padding-inline: 20px; }
    .cs2-featured, .cs2-finder { scroll-margin-top: 88px; }
    .cs2-hero { padding: 112px 0 58px; }
    .cs2-hero-layout { gap: 32px; }
    .cs2-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cs2-stats div:last-child { grid-column: 1 / 3; }
    .cs2-hero-media { border-radius: 20px; }
    .cs2-featured { padding: 68px 0 62px; }
    .cs2-finder { padding: 64px 0 72px; }
    .cs2-section-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 30px; }
    .cs2-section-head > p { max-width: 620px; }
    .cs2-feature-grid { grid-template-columns: 1fr; }
    .cs2-feature-card--main { grid-column: auto; min-height: 440px; }
    .cs2-feature-card:not(.cs2-feature-card--main) { min-height: 330px; }
    .cs2-filter-panel { padding: 22px 18px; }
    .cs2-filter-row { grid-template-columns: 1fr; gap: 8px; }
    .cs2-filter-label { padding-top: 4px; }
    .cs2-results-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .cs2-hero h1 { font-size: var(--ztc-banner-h1-feature); }
    .cs2-lead { font-size:18px; }
    .cs2-stats { gap: 22px 10px; }
    .cs2-stats div { padding-left: 12px; }
    .cs2-stats dt { font-size: 35px; }
    .cs2-hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .cs2-btn { padding-inline: 12px; font-size: 13px; }
    .cs2-media-caption { left: 18px; right: 18px; bottom: 17px; }
    .cs2-media-play { width: 44px; height: 44px; }
    .cs2-media-caption strong { font-size:14px; }
    .cs2-feature-card--main { min-height: 380px; }
    .cs2-feature-card:not(.cs2-feature-card--main) { min-height: 300px; }
    .cs2-feature-content, .cs2-feature-card--main .cs2-feature-content { padding: 22px; }
    .cs2-logo-tile { width: 66px; height: 52px; }
    .cs2-feature-company { font-size:20px; }
    .cs2-feature-card--main .cs2-feature-proof strong { font-size: 46px; }
    .cs2-results-status { align-items: flex-start; }
    .cs2-results-status > div { display: grid; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
    .cs2-page *, .cs2-page *::before, .cs2-page *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}