:root {
    --ink: #172033;
    --muted: #5d6a7c;
    --soft: #f5f7fb;
    --line: #dbe3ef;
    --blue: #246bfe;
    --blue-dark: #123a86;
    --teal: #14b8a6;
    --coral: #f97359;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    color: var(--ink);
    background: var(--white);
    letter-spacing: 0;
}

body[data-lang="zh"] [data-i18n$=".en"],
body[data-lang="en"] [data-i18n$=".zh"] {
    display: none !important;
}

body[data-lang="zh"] .product-shot-en,
body[data-lang="en"] .product-shot-zh {
    display: none !important;
}

h1,
h2,
h3,
h4,
h5 {
    letter-spacing: 0;
}

p {
    color: var(--muted);
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.container.narrow {
    width: min(860px, calc(100% - 40px));
}

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    padding: 12px clamp(20px, 4vw, 56px);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(219, 227, 239, 0.8);
    backdrop-filter: blur(14px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
}

.brand:hover {
    filter: none;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    color: var(--white);
    font-weight: 800;
    background: var(--blue);
    border-radius: 8px;
}

.brand-name,
.brand-subtitle {
    display: block;
    line-height: 1.1;
}

.brand-name {
    font-size: 18px;
    font-weight: 800;
}

.brand-subtitle {
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.nav-links a {
    color: var(--ink);
    font-size: 14px;
    font-weight: 700;
}

.nav-links a.active,
.nav-links a:hover {
    color: var(--blue);
    filter: none;
}

.language-switch {
    display: inline-flex;
    padding: 3px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 999px;
}

.language-switch button {
    min-width: 52px;
    padding: 7px 10px;
    color: var(--muted);
    font: 700 13px/1 "Inter", "Arial", sans-serif;
    background: transparent;
    border-radius: 999px;
    cursor: pointer;
}

.language-switch button.active {
    color: var(--white);
    background: var(--blue);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: var(--soft);
    border-radius: 8px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: var(--ink);
}

.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    padding: 120px clamp(20px, 5vw, 72px) 72px;
    overflow: hidden;
}

.hero-media,
.hero-overlay {
    position: absolute;
    inset: 0;
}

.hero-media img,
.hero-media .product-shot {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    background: rgba(10, 20, 38, 0.78);
}

.hero-content {
    position: relative;
    z-index: 1;
    width: min(860px, 100%);
}

.eyebrow,
.section-kicker,
.plan-label {
    color: var(--teal);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.eyebrow.dark {
    color: var(--blue);
}

.hero h1 {
    max-width: 920px;
    color: var(--white);
    font-size: clamp(40px, 5.4vw, 58px);
    line-height: 1.02;
    padding-bottom: 18px;
}

.hero-lede {
    max-width: 760px;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(18px, 2vw, 22px);
    line-height: 1.65;
}

.hero-actions,
.cta-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 8px;
    font-weight: 800;
    line-height: 1;
}

.button.primary {
    color: var(--white);
    background: var(--blue);
}

.button.primary.light {
    color: var(--blue-dark);
    background: var(--white);
}

.button.ghost {
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.08);
}

.button:hover {
    filter: brightness(0.95);
}

.trust-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
}

.trust-strip span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 800;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
}

.section {
    padding: clamp(70px, 9vw, 118px) 0;
}

.intro-band,
.security-section,
.price-details {
    background: var(--soft);
}

.section-heading {
    max-width: 820px;
    margin-bottom: 38px;
}

.section-heading.compact {
    margin-bottom: 26px;
}

.section h2,
.page-hero h1,
.cta-band h2 {
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.12;
}

.section h2 {
    max-width: 860px;
}

.feature-grid,
.pricing-cards,
.sales-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

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

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

.feature-card,
.pricing-card,
.sales-card,
.contact-panel,
.requirements-panel,
.offer-box {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--white);
}

.feature-card {
    min-height: 250px;
    padding: 26px;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 20px;
    color: var(--blue-dark);
    font-size: 13px;
    font-weight: 900;
    background: #e8f0ff;
    border-radius: 8px;
}

.benchmark-placeholder {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 24px;
    padding: clamp(24px, 4vw, 38px);
    background: #101828;
    border-radius: 8px;
}

.benchmark-placeholder h3,
.benchmark-placeholder p {
    color: var(--white);
}

.benchmark-placeholder p:last-child {
    color: rgba(255, 255, 255, 0.72);
}

.benchmark-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    align-content: center;
}

.benchmark-metrics .metric-card {
    min-height: 132px;
    padding: 20px 22px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    line-height: 1.45;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.06));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
}

.metric-label {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    color: rgba(255, 255, 255, 0.7);
    font-style: normal;
    font-weight: 700;
}

.metric-value {
    display: block;
    margin-top: 16px;
    color: var(--white);
    font-size: 36px;
    font-weight: 900;
    line-height: 1.05;
}

.metric-value-compact {
    font-size: 30px;
}

.metric-note {
    display: block;
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 14px;
    line-height: 1.35;
}

.metric-note em {
    font-style: normal;
}

.two-column {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
    gap: clamp(28px, 6vw, 70px);
    align-items: start;
}

.assurance-list,
.example-list {
    display: grid;
    gap: 14px;
}

.assurance-list div,
.example-list div {
    padding: 22px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.assurance-list strong,
.assurance-list span,
.example-list strong,
.example-list span {
    display: block;
}

.assurance-list strong,
.example-list strong {
    margin-bottom: 8px;
    color: var(--ink);
}

.assurance-list span,
.example-list span {
    color: var(--muted);
    line-height: 1.6;
}

.browser-frame {
    overflow: hidden;
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(23, 32, 51, 0.14);
}

.browser-bar {
    display: flex;
    gap: 8px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
}

.browser-bar span {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--coral);
}

.browser-bar span:nth-child(2) {
    background: #fbbf24;
}

.browser-bar span:nth-child(3) {
    background: var(--teal);
}

.browser-frame img {
    display: block;
    width: 100%;
}

.sales-card {
    display: block;
    min-height: 158px;
    padding: 24px;
    color: var(--ink);
}

.sales-card strong,
.sales-card span {
    display: block;
}

.sales-card strong {
    margin-bottom: 12px;
    font-size: 20px;
}

.sales-card span {
    color: var(--muted);
    line-height: 1.6;
}

.page-hero {
    padding: 140px 0 76px;
    background: var(--soft);
    border-bottom: 1px solid var(--line);
}

.page-hero p {
    font-size: 18px;
    line-height: 1.7;
}

.pricing-card {
    min-height: 470px;
    padding: 28px;
}

.pricing-card.featured {
    border-color: var(--blue);
    box-shadow: 0 22px 52px rgba(36, 107, 254, 0.14);
}

.pricing-card h2 {
    font-size: 48px;
    padding-bottom: 4px;
}

.pricing-card h2 span {
    font-size: 18px;
}

.pricing-card h2 small {
    display: inline-block;
    margin-left: 8px;
    color: var(--muted);
    font-size: 15px;
    font-weight: 800;
    vertical-align: middle;
}

.pricing-card h2 .price-note {
    padding: 4px 9px;
    color: var(--blue-dark);
    background: rgba(36, 107, 254, 0.08);
    border-radius: 999px;
}

.price-sub {
    margin-bottom: 22px;
    color: var(--blue);
    font-weight: 800;
}

.price-components {
    background: var(--soft);
}

.component-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.component-card {
    min-height: 172px;
    padding: 24px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.component-card strong,
.component-card span {
    display: block;
}

.component-card strong {
    margin-bottom: 12px;
    color: var(--ink);
    font-size: 18px;
}

.component-card span {
    color: var(--muted);
    line-height: 1.65;
}

.check-list {
    margin-top: 22px;
    list-style: none;
}

.check-list li {
    position: relative;
    margin: 0 0 12px 0;
    padding-left: 26px;
    color: var(--muted);
    line-height: 1.55;
}

.check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 10px;
    height: 10px;
    background: var(--teal);
    border-radius: 3px;
}

.promo-badge {
    display: inline-flex;
    align-items: center;
    margin-right: 8px;
    padding: 2px 8px;
    color: var(--white);
    font-size: 12px;
    font-weight: 900;
    line-height: 1.3;
    background: var(--coral);
    border-radius: 999px;
}

.promo-line {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.promo-line del,
.example-list del {
    color: var(--muted);
}

.promo-price {
    color: var(--blue);
    font-weight: 900;
}

.detail-link {
    color: var(--blue);
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.detail-link:hover {
    color: var(--ink);
}

#rental-tiers {
    scroll-margin-top: 96px;
}

.compact-list li {
    margin-bottom: 10px;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.pricing-table {
    width: 100%;
    min-width: 760px;
    border-collapse: collapse;
    background: var(--white);
}

.pricing-table th,
.pricing-table td {
    padding: 18px;
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.pricing-table th {
    color: var(--ink);
    font-size: 14px;
    background: #edf4ff;
}

.pricing-table td {
    color: var(--muted);
}

.pricing-table tr:last-child td {
    border-bottom: 0;
}

.table-note {
    margin-top: 18px;
    font-size: 14px;
}

.offer-box {
    padding: clamp(28px, 5vw, 54px);
    background: #101828;
}

.offer-box h2,
.offer-box p {
    color: var(--white);
}

.offer-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 22px;
}

.offer-grid span {
    padding: 16px;
    color: rgba(255, 255, 255, 0.86);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.8fr);
    gap: 22px;
}

.contact-panel,
.requirements-panel {
    padding: clamp(28px, 4vw, 42px);
}

.cta-band {
    padding: 54px 0;
    color: var(--white);
    background: var(--blue-dark);
}

.cta-band p,
.cta-band h2 {
    color: var(--white);
}

.cta-content {
    justify-content: space-between;
}

.site-footer {
    padding: 34px 0;
    color: var(--white);
    background: #0f172a;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.site-footer p {
    margin: 8px 0 0;
    color: rgba(255, 255, 255, 0.72);
}

.footer-records {
    margin-top: 14px;
}

.footer-records p {
    font-size: 13px;
}

.footer-records a {
    color: rgba(255, 255, 255, 0.82);
}

.police-record {
    display: flex;
    align-items: center;
    gap: 6px;
}

.police-record img {
    flex: 0 0 auto;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.82);
}

.legal-copy h2 {
    margin-top: 36px;
    font-size: 24px;
}

.legal-copy h2:first-child {
    margin-top: 0;
}

.legal-copy p {
    font-size: 17px;
    line-height: 1.8;
}

@media (max-width: 980px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 14px 20px 20px;
        background: var(--white);
        border-bottom: 1px solid var(--line);
    }

    .site-nav.nav-open .nav-links {
        display: flex;
    }

    .nav-links a {
        padding: 14px 0;
        border-bottom: 1px solid var(--line);
    }

    .language-switch {
        align-self: flex-start;
        margin-top: 14px;
    }

    .feature-grid,
    .pricing-cards,
    .sales-grid,
    .component-grid,
    .feature-grid.three,
    .two-column,
    .contact-grid,
    .offer-grid,
    .benchmark-placeholder {
        grid-template-columns: 1fr;
    }

    .benchmark-metrics {
        grid-template-columns: 1fr;
    }

    .pricing-card {
        min-height: auto;
    }
}

@media (max-width: 620px) {
    .container,
    .container.narrow {
        width: min(100% - 28px, 1180px);
    }

    .site-nav {
        min-height: 66px;
        padding: 10px 14px;
    }

    .brand-subtitle {
        display: none;
    }

    .nav-links {
        top: 66px;
    }

    .hero {
        min-height: 88vh;
        padding: 104px 18px 48px;
    }

    .hero h1 {
        font-size: 38px;
    }

    .hero-lede,
    .page-hero p {
        font-size: 16px;
    }

    .button {
        width: 100%;
    }

    .trust-strip span {
        font-size: 12px;
    }

    .page-hero {
        padding: 112px 0 56px;
    }

    .feature-card,
    .pricing-card,
    .sales-card,
    .contact-panel,
    .requirements-panel {
        padding: 22px;
    }

    .footer-content,
    .cta-content {
        display: grid;
        grid-template-columns: 1fr;
    }
}