.weidun-case-archive {
    --case-accent: #cf2e2e;
    --case-accent-dark: #a92323;
    --case-ink: #292d32;
    --case-muted: #697178;
    --case-line: #dfe3e6;
    --case-soft: #f4f5f6;
    --case-navy: #263d51;
    --case-shadow: 0 14px 34px rgba(36, 57, 74, .10);
    background: #fff;
    color: var(--case-ink);
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
}

.weidun-case-archive *,
.weidun-case-archive *::before,
.weidun-case-archive *::after { box-sizing: border-box; }

.weidun-case-archive .container {
    width: min(1200px, calc(100% - 40px)) !important;
    max-width: 1200px !important;
    margin-right: auto !important;
    margin-left: auto !important;
    padding-right: 0 !important;
    padding-left: 0 !important;
}

.weidun-case-archive .container::before,
.weidun-case-archive .container::after { display: none !important; content: none !important; }

.weidun-case-archive img { display: block; max-width: 100%; }
.weidun-case-archive a { color: inherit; }

.weidun-case-archive .case-hero {
    position: relative;
    display: grid;
    height: 580px;
    align-items: center;
    overflow: hidden;
    background-color: #334d61;
    color: #fff;
}

.weidun-case-archive .case-hero-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    object-position: center;
}

.weidun-case-archive .case-hero::before {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(21,45,64,.90), rgba(28,55,75,.55) 48%, rgba(29,55,74,.20));
    z-index: 1;
    content: "";
}

.weidun-case-archive .case-hero-copy { position: relative; z-index: 2; }
.weidun-case-archive .case-hero-copy > p { margin: 0 0 8px; color: rgba(255,255,255,.68); font-size: 13px; letter-spacing: .14em; }
.weidun-case-archive .case-hero h1 { margin: 0; color: #fff; font-size: clamp(42px, 5vw, 64px); font-weight: 700; line-height: 1.15; letter-spacing: .04em; }
.weidun-case-archive .case-hero-copy > span { display: block; width: 44px; height: 3px; margin: 20px 0; background: #fff; }
.weidun-case-archive .case-hero-copy > div { max-width: 580px; color: rgba(255,255,255,.90); font-size: 17px; }

.weidun-case-archive .case-breadcrumb { height: 56px; border-bottom: 1px solid var(--case-line); background: #fff; }
.weidun-case-archive .case-breadcrumb .container { display: flex; height: 100%; align-items: center; gap: 12px; color: #8b9298; font-size: 13px; }
.weidun-case-archive .case-breadcrumb a { color: #687078; text-decoration: none; transition: color .2s ease; }
.weidun-case-archive .case-breadcrumb a:hover { color: var(--case-accent); }

.weidun-case-archive .case-intro { padding: 52px 0; border-bottom: 1px solid var(--case-line); }
.weidun-case-archive .case-intro-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: end; }
.weidun-case-archive .case-intro b { color: var(--case-accent); font-size: 13px; font-weight: 500; }
.weidun-case-archive .case-intro h2 { max-width: 440px; margin: 6px 0 0; font-size: 30px; line-height: 1.4; }
.weidun-case-archive .case-intro-layout > p { max-width: 680px; margin: 0; color: var(--case-muted); }

.weidun-case-archive .case-section { padding: 82px 0 92px; }
.weidun-case-archive .case-section-muted { background-color: var(--case-soft) !important; background-image: none !important; }
.weidun-case-archive .case-section-muted .case-heading,
.weidun-case-archive .case-section-muted .case-heading h2,
.weidun-case-archive .case-section-muted .case-heading p,
.weidun-case-archive .case-section-muted .case-faq-layout,
.weidun-case-archive .case-section-muted .case-faq-layout header,
.weidun-case-archive .case-section-muted .case-faq-layout h2,
.weidun-case-archive .case-section-muted .case-faq-layout header p { background: transparent !important; }
.weidun-case-archive .case-heading { max-width: 760px; margin: 0 auto 46px; text-align: center; }
.weidun-case-archive .case-heading h2 { position: relative; display: inline-block; margin: 0; font-size: 29px; }
.weidun-case-archive .case-heading h2::after { position: absolute; bottom: -13px; left: 50%; width: 26px; height: 2px; background: var(--case-accent); content: ""; transform: translateX(-50%); }
.weidun-case-archive .case-heading p { margin: 25px 0 0; color: #838a90; font-size: 14px; }

.weidun-case-archive .solution-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.weidun-case-archive .solution-card { padding: 34px 36px; border: 1px solid var(--case-line); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.weidun-case-archive .solution-card:hover { box-shadow: var(--case-shadow); transform: translateY(-3px); }
.weidun-case-archive .solution-title { display: grid; grid-template-columns: 45px 1fr; gap: 16px; align-items: start; }
.weidun-case-archive .solution-title > span { color: var(--case-accent); font-size: 18px; font-weight: 700; }
.weidun-case-archive .solution-title h3 { margin: 0; font-size: 20px; }
.weidun-case-archive .solution-title p { margin: 2px 0 0; color: #90969b; font-size: 12px; }
.weidun-case-archive .solution-card dl { margin: 25px 0 0; }
.weidun-case-archive .solution-card dl > div { display: grid; grid-template-columns: 76px 1fr; gap: 12px; margin-top: 13px; }
.weidun-case-archive .solution-card dt { color: #3d444a; font-weight: 600; }
.weidun-case-archive .solution-card dd { margin: 0; color: var(--case-muted); font-size: 13px; }
.weidun-case-archive .solution-advantages { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 25px; }
.weidun-case-archive .solution-advantages span { padding: 6px 10px; background: #eef1f3; color: #555d63; font-size: 12px; }

.weidun-case-archive .case-service-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; align-items: start; }
.weidun-case-archive .case-service-copy { position: sticky; top: 30px; }
.weidun-case-archive .case-service-copy h2,
.weidun-case-archive .case-support-layout h2,
.weidun-case-archive .case-faq-layout h2 { margin: 0 0 14px; font-size: 30px; }
.weidun-case-archive .case-service-copy p,
.weidun-case-archive .case-support-layout > div:first-child > p,
.weidun-case-archive .case-faq-layout header p { margin: 0 0 28px; color: var(--case-muted); }
.weidun-case-archive .case-primary-button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 10px 24px; border: 1px solid var(--case-accent); background: var(--case-accent); color: #fff; font-weight: 600; text-decoration: none; white-space: nowrap; transition: background .2s ease, transform .15s ease; }
.weidun-case-archive .case-primary-button:hover { background: var(--case-accent-dark); color: #fff; }
.weidun-case-archive .case-primary-button:active { transform: translateY(1px); }
.weidun-case-archive .case-service-list { border-top: 1px solid var(--case-line); }
.weidun-case-archive .case-service-list article { display: grid; grid-template-columns: 190px 1fr; gap: 28px; padding: 25px 0; border-bottom: 1px solid var(--case-line); }
.weidun-case-archive .case-service-list h3 { margin: 0; font-size: 17px; }
.weidun-case-archive .case-service-list p { margin: 0; color: var(--case-muted); font-size: 13px; }

.weidun-case-archive .case-tools { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.weidun-case-archive .case-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.weidun-case-archive .case-tabs button { padding: 9px 14px; border: 1px solid #cfd4d8; border-radius: 0; background: #fff; color: #555d63; cursor: pointer; }
.weidun-case-archive .case-tabs button:hover,
.weidun-case-archive .case-tabs button.active { border-color: var(--case-accent); background: var(--case-accent); color: #fff; }
.weidun-case-archive .case-selects { display: flex; gap: 12px; }
.weidun-case-archive .case-selects label { display: grid; gap: 4px; color: var(--case-muted); font-size: 12px; }
.weidun-case-archive .case-selects select { height: 40px; min-width: 150px; padding: 0 30px 0 10px; border: 1px solid #cfd4d8; border-radius: 0; background: #fff; color: #353b40; }

.weidun-case-archive .project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: stretch; }
.weidun-case-archive .project-card { display: grid; grid-template-rows: auto 1fr; overflow: hidden; border: 1px solid var(--case-line); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.weidun-case-archive .project-card:hover { box-shadow: var(--case-shadow); transform: translateY(-3px); }
.weidun-case-archive .project-card[hidden] { display: none; }
.weidun-case-archive .project-card img { width: 100%; height: 220px; object-fit: cover; }
.weidun-case-archive .project-body { padding: 24px; }
.weidun-case-archive .project-meta { display: flex; gap: 8px; margin-bottom: 8px; color: #8a9197; font-size: 12px; }
.weidun-case-archive .project-meta span + span::before { margin-right: 8px; content: "/"; }
.weidun-case-archive .project-body h3 { min-height: 54px; margin: 0 0 18px; font-size: 18px; line-height: 1.5; }
.weidun-case-archive .project-body dl { margin: 0; }
.weidun-case-archive .project-body dl > div { display: grid; grid-template-columns: 64px 1fr; gap: 8px; margin-top: 9px; }
.weidun-case-archive .project-body dt { font-size: 13px; font-weight: 600; }
.weidun-case-archive .project-body dd { margin: 0; color: var(--case-muted); font-size: 12px; }
.weidun-case-archive .project-empty { padding: 40px; background: #fff; color: var(--case-muted); text-align: center; }
.weidun-case-archive .project-pagination { display: flex; justify-content: center; gap: 8px; margin-top: 32px; }
.weidun-case-archive .project-pagination:empty { display: none; }
.weidun-case-archive .project-pagination button { width: 40px; height: 40px; border: 1px solid #cfd4d8; background: #fff; color: #555d63; cursor: pointer; }
.weidun-case-archive .project-pagination button:hover,
.weidun-case-archive .project-pagination button.active { border-color: var(--case-accent); background: var(--case-accent); color: #fff; }

.weidun-case-archive .case-proof { background: var(--case-navy); color: #fff; }
.weidun-case-archive .case-proof-grid { display: grid; grid-template-columns: 1.15fr .85fr; align-items: stretch; }
.weidun-case-archive .case-proof-stats { display: grid; grid-template-columns: repeat(3, 1fr); }
.weidun-case-archive .case-proof-stats article { padding: 45px 26px; border-right: 1px solid rgba(255,255,255,.14); }
.weidun-case-archive .case-proof-stats strong { display: block; font-size: 34px; }
.weidun-case-archive .case-proof-stats span { color: rgba(255,255,255,.66); font-size: 13px; }
.weidun-case-archive .case-client-types { display: grid; grid-template-columns: 1fr 1fr; background: #314d64; }
.weidun-case-archive .case-client-types span { display: grid; min-height: 80px; place-items: center; border-bottom: 1px solid rgba(255,255,255,.12); border-left: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.80); }

.weidun-case-archive .case-support-layout { display: grid; grid-template-columns: .76fr 1.24fr; gap: 80px; }
.weidun-case-archive .case-support-items { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--case-line); border-left: 1px solid var(--case-line); }
.weidun-case-archive .case-support-items article { padding: 28px; border-right: 1px solid var(--case-line); border-bottom: 1px solid var(--case-line); }
.weidun-case-archive .case-support-items strong { font-size: 17px; }
.weidun-case-archive .case-support-items p { margin: 8px 0 0; color: var(--case-muted); font-size: 13px; }

.weidun-case-archive .case-faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; }
.weidun-case-archive .case-faq-list { border-top: 1px solid var(--case-line); }
.weidun-case-archive .case-faq-list details { border-bottom: 1px solid var(--case-line); }
.weidun-case-archive .case-faq-list summary { position: relative; padding: 21px 45px 21px 3px; cursor: pointer; font-weight: 600; list-style: none; }
.weidun-case-archive .case-faq-list summary::-webkit-details-marker { display: none; }
.weidun-case-archive .case-faq-list summary::after { position: absolute; top: 17px; right: 8px; color: var(--case-accent); content: "+"; font-size: 24px; }
.weidun-case-archive .case-faq-list details[open] summary::after { content: "−"; }
.weidun-case-archive .case-faq-list p { margin: 0; padding: 0 45px 22px 3px; color: var(--case-muted); font-size: 14px; }

.weidun-case-archive .case-closing { padding: 54px 0; border-top: 1px solid var(--case-line); background: #fff; }
.weidun-case-archive .case-closing-layout { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.weidun-case-archive .case-closing-layout span { color: var(--case-accent); font-size: 13px; }
.weidun-case-archive .case-closing-layout h2 { margin: 5px 0 0; font-size: 27px; }
.weidun-case-archive .case-closing-actions { display: flex; align-items: center; gap: 24px; }
.weidun-case-archive .case-phone { color: var(--case-ink); font-size: 20px; font-weight: 700; text-decoration: none; white-space: nowrap; }

.weidun-case-archive .case-primary-button:focus-visible,
.weidun-case-archive .case-phone:focus-visible,
.weidun-case-archive .case-tabs button:focus-visible,
.weidun-case-archive .project-pagination button:focus-visible,
.weidun-case-archive select:focus-visible,
.weidun-case-archive summary:focus-visible { outline: 3px solid rgba(207,46,46,.24); outline-offset: 3px; }

@media (max-width: 980px) {
    .weidun-case-archive .case-intro-layout,
    .weidun-case-archive .case-service-layout,
    .weidun-case-archive .case-support-layout,
    .weidun-case-archive .case-faq-layout { grid-template-columns: 1fr; gap: 38px; }
    .weidun-case-archive .case-service-copy { position: static; }
    .weidun-case-archive .case-tools { align-items: stretch; flex-direction: column; }
    .weidun-case-archive .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .weidun-case-archive .case-proof-grid { grid-template-columns: 1fr; }
    .weidun-case-archive .case-proof-stats article:last-child { border-right: 0; }
}

@media (max-width: 700px) {
    .weidun-case-archive .container { width: min(calc(100% - 30px), 1200px) !important; }
    .weidun-case-archive .case-hero { height: 580px; }
    .weidun-case-archive .case-hero-image { object-position: 56% center; }
    .weidun-case-archive .case-hero h1 { font-size: 42px; }
    .weidun-case-archive .case-hero-copy > div { font-size: 15px; }
    .weidun-case-archive .case-intro { padding: 38px 0; }
    .weidun-case-archive .case-intro-layout { gap: 20px; }
    .weidun-case-archive .case-intro h2 { font-size: 25px; }
    .weidun-case-archive .case-section { padding: 58px 0 66px; }
    .weidun-case-archive .case-heading { margin-bottom: 36px; }
    .weidun-case-archive .case-heading h2 { font-size: 24px; }
    .weidun-case-archive .solution-grid,
    .weidun-case-archive .case-support-items,
    .weidun-case-archive .project-grid { grid-template-columns: 1fr; }
    .weidun-case-archive .solution-card { padding: 28px 22px; }
    .weidun-case-archive .solution-card dl > div { grid-template-columns: 1fr; gap: 2px; }
    .weidun-case-archive .case-service-list article { grid-template-columns: 1fr; gap: 5px; }
    .weidun-case-archive .case-selects { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
    .weidun-case-archive .case-selects select { width: 100%; min-width: 0; }
    .weidun-case-archive .project-body h3 { min-height: 0; }
    .weidun-case-archive .case-proof-stats { grid-template-columns: 1fr; }
    .weidun-case-archive .case-proof-stats article { padding: 24px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
    .weidun-case-archive .case-closing-layout,
    .weidun-case-archive .case-closing-actions { width: 100%; align-items: flex-start; flex-direction: column; }
    .weidun-case-archive .case-closing-actions { gap: 15px; }
    .weidun-case-archive .case-closing-actions .case-primary-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    .weidun-case-archive *,
    .weidun-case-archive *::before,
    .weidun-case-archive *::after { transition-duration: .01ms !important; scroll-behavior: auto !important; }
}