* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "PingFang SC", "Hiragino Sans", sans-serif;
    color: #102033;
    background:
        radial-gradient(circle at top left, rgba(191, 219, 254, 0.55), transparent 35%),
        linear-gradient(180deg, #f3f7fb 0%, #ffffff 44%, #f6f8fb 100%);
}

a {
    color: inherit;
    text-decoration: none;
}

.site-shell {
    min-height: 100vh;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(14px);
    background: rgba(255, 255, 255, 0.82);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.site-header-inner,
.site-footer-inner,
.page-section,
.hero-grid {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 78px;
}

.site-header-tools {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.site-subnav {
    border-top: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(248, 250, 252, 0.92);
}

.site-subnav-inner {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 18px 28px;
    padding: 12px 0;
}

.site-subnav-group {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.site-subnav-title {
    color: #0f172a;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.site-subnav-title.is-active {
    color: #0f766e;
}

.site-subnav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.site-subnav-link {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(226, 232, 240, 0.92);
    color: #334155;
    font-size: 12px;
    font-weight: 700;
}

.site-subnav-link.is-active {
    background: #0f172a;
    color: #f8fafc;
}

.brand-lockup {
    display: grid;
    gap: 4px;
}

.brand-anchor {
    display: inline-flex;
    align-items: center;
    gap: 14px;
}

.brand-logo {
    width: auto;
    max-width: 168px;
    max-height: 48px;
    object-fit: contain;
}

.brand-eyebrow {
    font-size: 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: #6b7280;
}

.brand-name {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.nav-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.nav-link {
    font-size: 14px;
    font-weight: 700;
    color: #334155;
}

.nav-link.is-active {
    color: #0f172a;
}

.nav-link.is-active::after {
    content: "";
    display: block;
    height: 3px;
    margin-top: 6px;
    border-radius: 999px;
    background: linear-gradient(90deg, #0f766e, #1d4ed8);
}

.lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px;
    border-radius: 999px;
    background: rgba(226, 232, 240, 0.9);
}

.lang-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    color: #475569;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.lang-chip.is-active {
    background: #0f172a;
    color: #f8fafc;
}

.top-contact {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: #0f172a;
    color: #f8fafc;
    font-size: 13px;
    font-weight: 700;
}

.hero-section {
    padding: 42px 0 26px;
}

.content-hero-section {
    padding-bottom: 10px;
}

.hero-grid {
    display: grid;
    gap: 22px;
    grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.9fr);
}

.hero-card,
.side-card,
.feature-card,
.list-card,
.detail-card,
.module-card,
.content-hero-shell,
.empty-panel {
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
    background: rgba(255, 255, 255, 0.92);
}

.hero-card {
    padding: 42px;
    background:
        linear-gradient(135deg, rgba(14, 116, 144, 0.94), rgba(30, 64, 175, 0.96)),
        linear-gradient(180deg, #1d4ed8, #0f172a);
    color: #eff6ff;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #e0f2fe;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.hero-title {
    margin: 18px 0 14px;
    font-size: clamp(38px, 6vw, 68px);
    line-height: 0.96;
    letter-spacing: -0.05em;
}

.hero-subtitle {
    margin: 0;
    max-width: 660px;
    font-size: 18px;
    line-height: 1.7;
    color: rgba(239, 246, 255, 0.84);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}

.primary-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 800;
}

.primary-button {
    background: #f8fafc;
    color: #0f172a;
}

.secondary-button {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #f8fafc;
}

.side-card {
    padding: 28px;
}

.content-hero-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 30px;
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.9fr);
}

.content-hero-copy {
    display: grid;
    gap: 8px;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
    color: #64748b;
    font-size: 13px;
    font-weight: 700;
}

.breadcrumb-list a {
    color: #0f766e;
}

.content-hero-panel {
    padding: 22px;
    border-radius: 24px;
    background: linear-gradient(180deg, #eff6ff, #ffffff);
}

.hero-panel-label {
    margin-bottom: 12px;
    color: #0f766e;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.category-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.category-chip {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    background: #e2e8f0;
    color: #334155;
    font-size: 13px;
    font-weight: 700;
}

.category-chip.is-active {
    background: #0f172a;
    color: #f8fafc;
}

.side-card h2 {
    margin: 0 0 18px;
    font-size: 13px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #64748b;
}

.stat-stack {
    display: grid;
    gap: 14px;
}

.stat-item {
    padding: 18px 20px;
    border-radius: 22px;
    background: linear-gradient(180deg, #eff6ff, #ffffff);
}

.stat-value {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.stat-label {
    margin-top: 6px;
    color: #475569;
    font-size: 14px;
    line-height: 1.6;
}

.page-section {
    padding: 22px 0 34px;
}

.section-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.section-kicker {
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #0f766e;
    font-weight: 800;
}

.section-title {
    margin: 6px 0 0;
    font-size: clamp(28px, 4vw, 42px);
    letter-spacing: -0.04em;
}

.section-desc {
    max-width: 680px;
    margin: 10px 0 0;
    color: #64748b;
    line-height: 1.75;
}

.feature-grid,
.content-grid,
.article-grid {
    display: grid;
    gap: 18px;
}

.feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.list-card,
.detail-card,
.module-card {
    padding: 24px;
}

.content-list-card {
    display: grid;
    gap: 8px;
}

.feature-card h3,
.list-card h3,
.detail-card h1,
.module-card h3 {
    margin: 0 0 10px;
    letter-spacing: -0.03em;
}

.feature-card p,
.list-card p,
.module-card p,
.detail-summary,
.detail-body {
    color: #64748b;
    line-height: 1.75;
}

.list-card-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: #0f766e;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.detail-card {
    padding: 36px;
}

.detail-body {
    white-space: pre-wrap;
    padding-top: 18px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
}

.content-list-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 4px;
}

.text-link {
    color: #0f766e;
    font-size: 14px;
    font-weight: 800;
}

.empty-panel {
    padding: 36px;
}

.empty-panel h2 {
    margin: 0 0 10px;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.empty-panel p {
    margin: 0;
    color: #64748b;
    line-height: 1.75;
}

.contact-main {
    display: grid;
    gap: 10px;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(0, 1.2fr);
    gap: 20px;
}

.contact-info-card,
.contact-form-card {
    padding: 30px;
    border-radius: 28px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
    background: rgba(255, 255, 255, 0.92);
}

.contact-hotline {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: #0f172a;
}

.contact-side-note {
    margin: 14px 0 0;
    color: #64748b;
    line-height: 1.75;
}

.contact-meta-list {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.contact-meta-item {
    display: grid;
    gap: 4px;
}

.contact-meta-item span {
    color: #64748b;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.contact-meta-item strong {
    color: #0f172a;
    line-height: 1.6;
}

.contact-info-list {
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.contact-brand-logo {
    display: block;
    width: auto;
    max-width: 200px;
    max-height: 56px;
    margin-top: 18px;
    object-fit: contain;
}

.contact-info-item {
    display: grid;
    gap: 6px;
    padding: 18px 20px;
    border-radius: 22px;
    background: linear-gradient(180deg, #eff6ff, #ffffff);
}

.contact-info-item strong {
    font-size: 15px;
}

.contact-info-item span {
    color: #64748b;
    line-height: 1.7;
}

.contact-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 22px;
}

.contact-field {
    display: grid;
    gap: 8px;
}

.contact-field span {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #475569;
}

.contact-field input,
.contact-field textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 18px;
    background: #fff;
    font: inherit;
    color: #102033;
}

.contact-field textarea {
    resize: vertical;
}

.contact-field-full {
    grid-column: 1 / -1;
}

.contact-form-actions {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.contact-submit {
    border: none;
    cursor: pointer;
}

.contact-feedback {
    color: #475569;
    font-weight: 700;
}

.contact-feedback.is-success {
    color: #0f766e;
}

.contact-feedback.is-error {
    color: #b91c1c;
}

.site-footer {
    margin-top: 24px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
    background: #0f172a;
    color: #cbd5e1;
}

.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 92px;
}

.footer-title {
    font-size: 16px;
    font-weight: 800;
    color: #f8fafc;
}

.footer-note {
    font-size: 14px;
    color: #94a3b8;
}

.footer-meta {
    display: grid;
    gap: 6px;
    justify-items: end;
}

@media (max-width: 980px) {
    .hero-grid,
    .feature-grid,
    .content-grid,
    .article-grid,
    .content-hero-shell,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .site-header-inner,
    .section-header,
    .site-footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-meta {
        justify-items: start;
    }
}