@charset "UTF-8";

:root {
    color-scheme: light;
    --ink: #111c3a;
    --ink-soft: #35415f;
    --blue: #315df4;
    --blue-deep: #1c43cc;
    --cyan: #5be1d7;
    --orange: #ff8a52;
    --paper: #f4f7fc;
    --surface: #ffffff;
    --line: #e3e8f1;
    --muted: #65718a;
    --muted-light: #d7deec;
    --radius: 18px;
    --content-width: 1160px;
    --shadow-soft: 0 14px 36px rgba(16, 32, 74, .10);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; text-underline-offset: .2em; }
button, a { -webkit-tap-highlight-color: transparent; }
button, input { font: inherit; }
ul, ol { margin: 0; padding: 0; }
.container { width: min(var(--content-width), calc(100% - 48px)); margin-inline: auto; }

:focus-visible {
    outline: 3px solid #ffb16b;
    outline-offset: 4px;
}

::selection { color: #fff; background: var(--blue-deep); }

.skip-link {
    position: fixed;
    z-index: 1000;
    top: 12px;
    left: 12px;
    padding: 10px 14px;
    color: #fff;
    background: var(--ink);
    border-radius: 8px;
    transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: sticky;
    z-index: 50;
    top: 0;
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid rgba(17, 28, 58, .08);
}
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    color: #fff;
    background: var(--blue);
    border-radius: 14px;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: -.05em;
}
.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { color: var(--ink); font-size: 17px; line-height: 1.25; }
.brand-copy span { color: var(--muted); font-size: 11px; letter-spacing: .04em; }
.site-nav { display: flex; align-items: center; gap: clamp(16px, 2.5vw, 34px); }
.nav-link { color: #4c5873; font-size: 14px; transition: color .18s ease; }
.nav-link:hover, .nav-link.is-current { color: var(--blue); }
.nav-action {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    gap: 9px;
    padding: 0 17px;
    color: #fff;
    background: var(--blue);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 650;
    transition: background-color .18s ease, transform .18s ease;
}
.nav-action:hover { color: #fff; background: var(--blue-deep); transform: translateY(-1px); }
.menu-toggle { display: none; }

.hero {
    position: relative;
    overflow: hidden;
    color: var(--ink);
    background: linear-gradient(135deg, #f2f6fd 0%, #eaf1fc 100%);
}
.hero-grid {
    display: grid;
    min-height: 460px;
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: clamp(28px, 5vw, 72px);
    padding-block: 42px;
}
.hero-copy { max-width: 580px; }
.hero h1 {
    max-width: 600px;
    margin: 0;
    color: var(--ink);
    font-size: clamp(34px, 4.2vw, 50px);
    font-weight: 730;
    line-height: 1.18;
    letter-spacing: -.03em;
}
.hero h1 span {
    display: block;
    margin-top: 8px;
    color: var(--blue-deep);
    font-size: clamp(21px, 2.35vw, 30px);
    font-weight: 650;
    letter-spacing: 0;
    line-height: 1.35;
}
.hero-description {
    max-width: 480px;
    margin: 20px 0 0;
    color: #4d5d78;
    font-size: 16px;
    line-height: 1.8;
}
.hero-actions, .platform-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.hero-actions { margin-top: 25px; }
.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 11px;
    font-size: 14px;
    font-weight: 700;
    transition: background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-accent { color: #fff; background: var(--blue); }
.button-accent:hover { color: #fff; background: var(--blue-deep); }
.hero .button-outline { color: var(--ink-soft); border-color: #c8d2e2; background: rgba(255, 255, 255, .55); }
.hero .button-outline:hover { color: var(--blue-deep); border-color: #aabbe0; background: #fff; }
.button-primary { color: #fff; background: var(--blue); }
.button-primary:hover { color: #fff; background: var(--blue-deep); }
.button-dark { color: #fff; background: var(--ink); }
.button-dark:hover { color: #fff; background: #28365e; }
.hero-links { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 20px; }
.hero-links a { color: #4d5d78; font-size: 13px; transition: color .18s ease; }
.hero-links a:hover { color: var(--blue-deep); }
.hero-links i { margin-right: 6px; color: var(--blue); }
.hero-visual { display: grid; justify-items: center; }
.hero-visual-frame { width: min(100%, 460px); }
.hero-visual-frame img { width: 100%; height: auto; object-fit: contain; filter: drop-shadow(0 18px 30px rgba(34, 57, 101, .16)); }
.hero-caption { display: inline-flex; align-items: center; gap: 9px; margin-top: 4px; color: #4d5d78; font-size: 12px; }
.signal-dot { width: 8px; height: 8px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 0 5px rgba(91, 225, 215, .12); }

.section { padding-block: 88px; }
.plans-section { background: var(--paper); }
.section-heading { max-width: 680px; margin: 0 auto 38px; text-align: center; }
.section-heading h2, .platform-copy h2, .faq-intro h2 {
    margin: 0;
    color: var(--ink);
    font-size: clamp(28px, 3vw, 38px);
    font-weight: 740;
    line-height: 1.25;
    letter-spacing: -.025em;
}
.section-heading p { margin: 13px 0 0; color: var(--muted); font-size: 15px; }
.section-heading-compact { margin-bottom: 30px; }

.product-status { min-height: 24px; margin: 0 0 16px; color: var(--muted); font-size: 13px; }
.product-retry { padding: 8px 13px; margin: -6px 0 20px; color: var(--blue-deep); background: #eef3ff; border: 1px solid #d8e2fb; border-radius: 8px; cursor: pointer; font: inherit; font-size: 13px; }
.product-retry[hidden] { display: none; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.product-grid[hidden] { display: none; }
.product-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.product-card:hover { transform: translateY(-3px); border-color: #cbd5ed; box-shadow: var(--shadow-soft); }
.product-media { display: block; width: 100%; min-height: 0; overflow: hidden; background: #fff; }
.product-media img { display: block; width: 100%; height: auto; }
.product-content { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.product-heading { display: flex; min-height: 32px; align-items: flex-start; justify-content: space-between; gap: 10px; }
.product-heading h3 { margin: 0; color: var(--ink); font-size: 17px; font-weight: 720; line-height: 1.45; }
.region-tag { flex: 0 0 auto; padding: 3px 8px; color: #2945a8; background: #edf2ff; border-radius: 6px; font-size: 11px; line-height: 1.5; }
.product-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 11px; list-style: none; }
.product-tags li { padding: 3px 8px; color: #53617c; background: #f3f5f9; border-radius: 6px; font-size: 11px; }
.product-primary { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 16px 0 14px; margin-top: 15px; border-bottom: 1px solid var(--line); }
.product-primary > div { display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: 7px; }
.product-primary > div + div { padding-left: 14px; border-left: 1px solid var(--line); }
.product-primary strong { color: var(--blue-deep); font-size: 25px; font-weight: 760; line-height: 1.15; font-variant-numeric: tabular-nums; }
.product-primary span { color: var(--muted); font-size: 12px; }
.product-details { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; padding: 13px 0 17px; margin: 0; }
.product-details div { min-width: 0; }
.product-details dt { color: var(--muted); font-size: 11px; }
.product-details dd { margin: 3px 0 0; color: var(--ink-soft); font-size: 12px; font-weight: 650; }
.product-button {
    display: flex;
    min-height: 42px;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 0 13px;
    margin-top: auto;
    color: var(--blue-deep);
    background: #f1f5ff;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 700;
    transition: background-color .18s ease, color .18s ease;
}
.product-button:hover { color: #fff; background: var(--blue); }
.product-button.is-disabled { display: grid; place-items: center; color: var(--muted); background: #f3f5f9; border-color: var(--line); cursor: default; }
.product-image-placeholder { color: var(--muted); font-size: 13px; }
.product-description { display: -webkit-box; overflow: hidden; margin: 0 0 12px; color: var(--ink-soft); font-size: 13px; line-height: 1.65; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
.product-skus { display: grid; gap: 6px; padding: 0; margin: 0 0 14px; color: var(--ink-soft); font-size: 12px; list-style: none; }
.product-skus li { padding: 8px 10px; background: #f7f8fb; border-radius: 7px; }
.product-warning { margin: 0 0 12px; color: #9b4c14; font-size: 12px; line-height: 1.55; }
.product-rule { margin: 0 0 14px; color: var(--muted); font-size: 12px; }
.product-rule summary { cursor: pointer; color: var(--blue-deep); font-weight: 650; }
.product-rule p { margin: 8px 0 0; line-height: 1.6; white-space: pre-line; }
.section-note { display: flex; align-items: flex-start; justify-content: center; gap: 8px; margin: 24px auto 0; color: var(--muted); font-size: 12px; text-align: center; }
.section-note i { margin-top: 5px; color: var(--blue); }
.section-action { display: flex; justify-content: center; margin-top: 22px; }

.service-strip { padding-block: 76px; background: #fff; }
.service-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.service-point { display: flex; align-items: flex-start; gap: 15px; padding: 18px 24px; }
.service-point + .service-point { border-left: 1px solid var(--line); }
.service-icon {
    display: grid;
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    place-items: center;
    color: var(--blue);
    background: #edf2ff;
    border-radius: 12px;
}
.service-point h3 { margin: 0; color: var(--ink); font-size: 16px; font-weight: 700; }
.service-point p { margin: 6px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }

.platform-section { background: #eef3fb; }
.platform-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(32px, 7vw, 90px); }
.platform-copy h2 { max-width: 520px; }
.platform-lead { max-width: 510px; margin: 18px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.platform-list { display: grid; gap: 13px; margin-top: 24px; list-style: none; }
.platform-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--ink-soft); font-size: 14px; }
.platform-list i { margin-top: 5px; color: var(--blue); }
.platform-actions { margin-top: 28px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-deep); font-size: 13px; font-weight: 700; }
.text-link:hover { color: #192f95; }
.platform-image { margin: 0; }
.platform-image img { width: 100%; height: auto; border: 8px solid #fff; border-radius: 18px; box-shadow: 0 18px 38px rgba(22, 42, 92, .14); }
.platform-image figcaption { margin-top: 10px; color: var(--muted); font-size: 11px; text-align: right; }

.service-paths { padding-block: 84px; background: #fff; }
.path-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; max-width: 930px; margin-inline: auto; }
.path-block { padding: 4px 0 4px 26px; }
.path-block + .path-block { border-left: 1px solid var(--line); }
.path-block h3 { display: flex; align-items: center; gap: 11px; margin: 0; color: var(--ink); font-size: 19px; }
.path-block h3 i { color: var(--blue); font-size: 17px; }
.path-block > p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.path-block ol { display: grid; gap: 9px; padding-left: 20px; margin: 19px 0 18px; color: var(--ink-soft); font-size: 13px; }
.path-block li { padding-left: 3px; }
.path-block li::marker { color: var(--blue); font-weight: 700; }

.faq-section { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 8vw, 110px); align-items: start; }
.faq-intro h2 { font-size: clamp(28px, 3vw, 36px); }
.faq-intro p { max-width: 330px; margin: 14px 0 22px; color: var(--muted); font-size: 14px; }
.faq-list { border-top: 1px solid #dce2ed; }
.faq-list details { border-bottom: 1px solid #dce2ed; }
.faq-list summary { display: flex; min-height: 62px; align-items: center; justify-content: space-between; gap: 16px; color: var(--ink); font-size: 15px; font-weight: 650; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { color: var(--blue); font-size: 13px; transition: transform .18s ease; }
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list details p { max-width: 620px; margin: -2px 28px 20px 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

.partners-section { padding-block: 62px 72px; background: #fff; }
.partner-logos { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: clamp(28px, 6vw, 72px); padding: 20px 0 0; }
.partner-logos img { width: auto; max-width: 140px; height: 56px; object-fit: contain; }

.site-footer { padding: 55px 0 20px; color: #eaf0ff; background: #101d43; }
.footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; padding-bottom: 42px; }
.brand-footer .brand-copy strong { color: #fff; }
.brand-footer .brand-copy span { color: #bdc9e2; }
.brand-footer .brand-mark { color: var(--ink); background: transparent; }
.footer-intro > p { max-width: 320px; margin: 18px 0 0; color: #bdc9e2; font-size: 12px; }
.contact-group { display: flex; flex-wrap: wrap; gap: 14px; }
.contact-card { display: flex; align-items: center; gap: 14px; padding: 12px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 14px; }
.contact-card img { width: 84px; height: 84px; padding: 4px; background: #fff; border-radius: 8px; object-fit: contain; }
.contact-card h3 { margin: 0; color: #fff; font-size: 14px; }
.contact-card p { margin: 4px 0 0; color: #bdc9e2; font-size: 11px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; padding-top: 17px; border-top: 1px solid rgba(255, 255, 255, .16); color: #bdc9e2; font-size: 11px; }
.copyright, .footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.copyright a, .footer-links a { color: #dce5fa; }
.copyright a:hover, .footer-links a:hover { color: var(--cyan); }

@media (max-width: 980px) {
    .header-inner { gap: 18px; }
    .site-nav { gap: 17px; }
    .nav-link { font-size: 13px; }
    .nav-action { padding-inline: 12px; }
    .hero-grid { min-height: 420px; gap: 22px; }
    .hero h1 { font-size: clamp(34px, 4.8vw, 46px); }
    .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .service-point { padding-inline: 15px; }
    .platform-grid { gap: 38px; }
}

@media (max-width: 760px) {
    html { scroll-padding-top: 72px; }
    .container { width: min(var(--content-width), calc(100% - 36px)); }
    .header-inner { min-height: 70px; }
    .menu-toggle {
        display: grid;
        width: 42px;
        height: 42px;
        place-items: center;
        color: var(--ink);
        background: #f2f5fb;
        border: 0;
        border-radius: 10px;
        cursor: pointer;
    }
    .menu-close-icon { display: none; }
    .menu-toggle[aria-expanded="true"] .menu-open-icon { display: none; }
    .menu-toggle[aria-expanded="true"] .menu-close-icon { display: block; }
    .site-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        display: none;
        align-items: stretch;
        flex-direction: column;
        gap: 0;
        padding: 8px 18px 16px;
        background: #fff;
        border-bottom: 1px solid var(--line);
        box-shadow: 0 16px 24px rgba(16, 32, 74, .08);
    }
    .site-nav.is-open { display: flex; }
    .nav-link { padding: 11px 4px; font-size: 14px; }
    .nav-action { justify-content: center; margin-top: 8px; }
    .hero-grid { min-height: 0; grid-template-columns: 1fr; padding-block: 44px 30px; }
    .hero-copy { max-width: 600px; }
    .hero h1 { font-size: clamp(32px, 7vw, 42px); }
    .hero h1 span { margin-top: 5px; font-size: clamp(21px, 4.5vw, 27px); }
    .hero-description { margin-top: 16px; font-size: 15px; }
    .hero-actions { margin-top: 20px; }
    .hero-visual { justify-items: center; margin-top: 8px; }
    .hero-visual-frame { width: min(76%, 340px); }
    .hero-caption { margin-top: 0; }
    .section { padding-block: 65px; }
    .section-heading { margin-bottom: 27px; }
    .section-heading h2, .platform-copy h2, .faq-intro h2 { font-size: 29px; }
    .section-heading p { font-size: 14px; }
    .product-grid { gap: 15px; }
    .product-content { padding: 16px; }
    .product-primary strong { font-size: 22px; }
    .service-strip { padding-block: 58px; }
    .service-points { grid-template-columns: 1fr; }
    .service-point { padding: 15px 0; }
    .service-point + .service-point { border-top: 1px solid var(--line); border-left: 0; }
    .platform-grid { grid-template-columns: 1fr; gap: 30px; }
    .platform-image { max-width: 560px; }
    .service-paths { padding-block: 64px; }
    .path-grid { grid-template-columns: 1fr; gap: 28px; }
    .path-block { padding-left: 0; }
    .path-block + .path-block { padding-top: 25px; border-top: 1px solid var(--line); border-left: 0; }
    .faq-layout { grid-template-columns: 1fr; gap: 30px; }
    .faq-intro p { max-width: 520px; }
    .partners-section { padding-block: 50px 58px; }
    .partner-logos { gap: 25px 36px; }
    .partner-logos img { max-width: 118px; height: 48px; }
    .footer-top { flex-direction: column; gap: 26px; }
    .contact-group { width: 100%; }
    .contact-card { flex: 1 1 220px; }
}

@media (max-width: 520px) {
    .container { width: calc(100% - 30px); }
    .brand { gap: 9px; }
    .brand-mark { width: 42px; height: 42px; }
    .brand-copy strong { font-size: 16px; }
    .brand-copy span { font-size: 10px; }
    .hero-grid { padding-top: 38px; }
    .hero h1 { font-size: 32px; }
    .hero h1 span { font-size: 21px; }
    .hero-actions { align-items: stretch; }
    .hero-actions .button { flex: 1; padding-inline: 12px; font-size: 13px; }
    .hero-links { gap: 12px 20px; }
    .product-grid { grid-template-columns: 1fr; }
    .product-content { padding: 18px; }
    .product-heading h3 { font-size: 18px; }
    .product-details dt { font-size: 12px; }
    .product-details dd { font-size: 13px; }
    .section-note { align-items: flex-start; text-align: left; }
    .section-note i { flex: 0 0 auto; }
    .platform-actions { align-items: flex-start; flex-direction: column; }
    .contact-group { flex-direction: column; }
    .contact-card { flex-basis: auto; }
    .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Refined product catalogue */
::selection { color: #fff; background: #315cff; }
:focus-visible { outline: 3px solid #70dcd4; outline-offset: 3px; }
a { text-underline-offset: .18em; }

.button { border-radius: 11px; }

.plans-section { padding-block: 88px 82px; background: var(--paper); }
.section-heading { max-width: 720px; margin-bottom: 38px; }
.section-heading h2 { letter-spacing: -.025em; }
.section-heading p { margin-top: 12px; color: #5c6882; }
.product-updated { margin: -12px 0 18px; color: #64718b; font-size: 12px; font-variant-numeric: tabular-nums; }
.product-status { color: #4e5d78; font-size: 14px; }
.product-retry { padding: 10px 16px; color: #244ddc; background: #fff; border: 1px solid #d8e1fb; border-radius: 10px; cursor: pointer; }
.product-retry:hover { background: #edf2ff; }
.product-grid { gap: 24px; }
.product-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 0;
    border-radius: 16px;
    box-shadow: 0 12px 28px rgba(27, 43, 83, .08);
    transition: transform .28s cubic-bezier(.2, .8, .2, 1), box-shadow .28s cubic-bezier(.2, .8, .2, 1);
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 20px 38px rgba(27, 43, 83, .14); }
.product-image-placeholder { color: #53617c; font-size: 13px; }
.product-content { gap: 0; padding: 22px; }
.product-heading { min-height: 42px; align-items: flex-start; }
.product-heading h3 { font-size: 17px; letter-spacing: -.01em; }
.region-tag { border-radius: 7px; }
.product-tags { margin-top: 10px; }
.product-tags li { color: #40506d; background: #f1f4f9; }
.product-primary { min-height: 70px; margin-top: 12px; padding-block: 14px; }
.product-primary.is-single { grid-template-columns: 1fr; }
.product-primary > div + div { border-color: #e1e6ef; }
.product-primary strong { font-size: 23px; }
.product-primary span { color: #596781; }
.product-details { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 12px; padding: 15px 0 18px; }
.product-details dt { color: #596781; }
.product-details dd { color: #182648; line-height: 1.5; }
.product-description { color: #40506d; }
.product-warning { color: #8d4519; }
.product-rule { color: #4e5d78; }
.product-rule summary { color: #254bd2; }
.product-button {
    display: flex;
    min-height: 44px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 14px;
    border: 0;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
}
.product-button-detail { margin-top: auto; color: #2348cc; background: #f0f4ff; }
.product-button-detail:hover { color: #1736a5; background: #e5ecff; }
.product-button-select { margin-top: 9px; color: #fff; background: #315cff; }
.product-button-select:hover { color: #fff; background: #2448d6; }

.service-strip { padding-block: 68px; background: #fff; }
.service-point { padding-block: 18px; }
.service-point p { color: #596781; }
.platform-section { background: #fff; }
.platform-lead { color: #596781; }
.platform-image img { border-radius: 16px; box-shadow: 0 18px 38px rgba(22, 42, 92, .14); }
.service-paths { background: #fff; }
.path-block > p, .path-block ol { color: #596781; }
.faq-section { background: #f4f6fb; }
.faq-list summary:focus-visible { border-radius: 4px; }

@media (max-width: 760px) {
    .plans-section { padding-block: 62px 58px; }
    .section-heading { margin-bottom: 30px; }
    .product-updated { margin-top: -4px; }
    .product-grid { gap: 18px; }
}

@media (max-width: 520px) {
    .product-content { padding: 19px; }
    .product-primary { min-height: 62px; }
}

/* Mobile actions and white-surface refinement */
.product-card { border: 1px solid #e8edf5; box-shadow: 0 12px 28px rgba(27, 43, 83, .065); }
.product-card:hover { box-shadow: 0 20px 38px rgba(27, 43, 83, .12); }
.faq-list { overflow: hidden; padding-inline: 18px; border: 1px solid #e6ebf3; border-radius: 14px; background: #fff; box-shadow: 0 8px 24px rgba(27, 43, 83, .045); }
.faq-list details:last-child { border-bottom: 0; }

@media (max-width: 760px) {
    .hero-links {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        max-width: 430px;
        margin-top: 16px;
    }
    .hero-links a {
        display: flex;
        min-width: 0;
        min-height: 40px;
        align-items: center;
        justify-content: center;
        gap: 6px;
        padding: 0 8px;
        border: 1px solid #e3e8f1;
        border-radius: 10px;
        background: #f7f9fc;
        color: #35415f;
        font-size: 12px;
        white-space: nowrap;
    }
    .hero-links a:hover { border-color: #cbd7f3; background: #f0f4ff; color: var(--blue-deep); }
    .hero-links i { margin-right: 0; }
}
@media (max-width: 360px) {
    .hero-links a { gap: 4px; padding-inline: 6px; font-size: 11px; }
}
/* Unified button treatment and calm background palette */
:root { --paper: #f4f7fc; }
body { background: var(--paper); }
.hero { background: linear-gradient(135deg, #f2f6fd 0%, #eaf1fc 100%); }
.plans-section { background: var(--paper); }
.platform-section { background: #eef3fb; }
.faq-section { background: var(--paper); }
.hero-links { gap: 10px; }
.hero-links a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; gap: 8px; padding: 0 14px; border: 1px solid #dce4f2; border-radius: 10px; background: #fff; color: #35415f; font-size: 13px; font-weight: 650; transition: border-color .18s ease, background-color .18s ease, color .18s ease, transform .18s ease; }
.hero-links a:hover { border-color: #bdccef; background: #f8faff; color: var(--blue-deep); transform: translateY(-1px); }
.hero-links i { margin-right: 0; color: var(--blue); }
@media (max-width: 760px) {
.hero-links { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 16px; }
.hero-links a { min-height: 40px; gap: 6px; padding-inline: 8px; font-size: 12px; }
}
@media (max-width: 360px) { .hero-links a { gap: 4px; padding-inline: 6px; font-size: 11px; } }
.product-updated { text-align: center; }

/* Hero service links: plain text aligned to the primary actions */
.hero-links { display: grid; width: max-content; grid-template-columns: 122px 128px; gap: 12px; margin-top: 14px; }
.hero-links a { display: block; min-width: 0; min-height: 0; padding: 0; border: 0; border-radius: 0; background: transparent; color: var(--blue-deep); font-size: 13px; font-weight: 600; line-height: 1.5; text-align: left; white-space: nowrap; transition: color .18s ease; }
.hero-links a:hover { border: 0; background: transparent; color: #193fb5; text-decoration: underline; transform: none; }
@media (max-width: 760px) {
    .hero-links { width: 100%; max-width: none; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 14px; }
    .hero-links a { min-height: 0; padding: 0; border: 0; border-radius: 0; background: transparent; font-size: 12px; }
}
@media (max-width: 360px) { .hero-links a { padding: 0; font-size: 11px; } }

/* Single service link aligned with the primary actions */
.hero-links { display: block; width: max-content; grid-template-columns: none; }
@media (max-width: 760px) { .hero-links { display: block; width: auto; } }

/* Center the single service link under the two primary actions */
.hero-cta-group { width: max-content; max-width: 100%; }
.hero-links { width: 100%; text-align: center; }
.hero-links a { display: inline-block; text-align: center; }
@media (max-width: 760px) {
    .hero-cta-group { width: 100%; }
    .hero-actions, .hero-links { width: 100%; }
}

/* Clear text-link affordance without button chrome */
.hero-links a { color: var(--blue-deep); font-weight: 650; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; cursor: pointer; }
.hero-links a::after { content: "→"; display: inline-block; margin-left: 7px; text-decoration: none; transition: transform .18s ease; }
.hero-links a:hover { color: #193fb5; text-decoration-thickness: 2px; }
.hero-links a:hover::after { transform: translateX(3px); }
.hero-links a:focus-visible { outline-offset: 3px; border-radius: 2px; }

/* Product actions share one aligned row: selection first, details second */
.product-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin-top: auto; padding-top: 12px; }
.product-actions .product-button { min-width: 0; margin-top: 0; padding-inline: 12px; }
.product-actions .product-button-detail { margin-top: 0; }
.product-actions .product-button-select { margin-top: 0; }

/* Brand mark icon */
.brand-mark { align-content: center; gap: 1px; letter-spacing: 0; line-height: 1; }
.brand-mark > i { font-size: 15px; line-height: 1; }
.brand-mark > span { font-size: 9px; font-weight: 800; letter-spacing: .02em; line-height: 1; }

/* Use the source favicon as the shared header and footer brand mark. */
.brand-mark { background: transparent; border-radius: 0; overflow: visible; }
.brand-mark > img { display: block; width: 46px; height: 46px; object-fit: contain; }

.product-detail-time dd { font-size: 11px; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Center package loading and error feedback with its retry action. */
.product-status { margin-bottom: 12px; text-align: center; }
.product-retry { display: block; width: fit-content; margin: 0 auto 20px; }


/* Consistent product imagery and aligned plan metadata. */
.product-media {
    position: relative;
    isolation: isolate;
    display: flex;
    height: 220px;
    min-height: 220px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0;
    background: #f6f8fc;
}
.product-media::before {
    position: absolute;
    z-index: -1;
    inset: -16px;
    content: "";
    background: var(--product-art) center / cover no-repeat;
    filter: blur(16px) saturate(1.08);
    opacity: .34;
    transform: scale(1.08);
}
.product-media img {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.product-heading { min-height: 52px; }
.product-tag-slot {
    display: flex;
    min-height: 27px;
    align-items: flex-start;
    margin-top: 8px;
}
.product-tags { margin: 0; }
.product-primary { margin-top: 12px; }
.product-details {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    padding: 14px 0 15px;
    margin: 0;
    border-bottom: 1px solid #e7ebf2;
}
.product-details > div {
    min-width: 0;
    padding: 0 9px;
}
.product-details > div:first-child { padding-left: 0; }
.product-details > div + div { border-left: 1px solid #e7ebf2; }
.product-details > div:last-child { padding-right: 0; }
.product-details dt { font-size: 11px; line-height: 1.4; }
.product-details dd {
    min-height: 2.8em;
    margin-top: 5px;
    font-size: 12px;
    line-height: 1.45;
    overflow-wrap: anywhere;
}
.product-detail-time dd {
    font-size: 10.5px;
    font-variant-numeric: tabular-nums;
    white-space: normal;
}
@media (max-width: 760px) {
    .product-media { height: 200px; min-height: 200px; }
}
@media (max-width: 420px) {
    .product-media { height: 180px; min-height: 180px; padding: 0; }
    .product-details > div { padding-inline: 6px; }
    .product-details dt { font-size: 10px; }
    .product-details dd { font-size: 11px; }
}


/* Floating return-to-top control */
.back-to-top {
    position: fixed;
    right: max(18px, env(safe-area-inset-right));
    bottom: max(18px, env(safe-area-inset-bottom));
    z-index: 50;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    padding: 0;
    color: #fff;
    background: var(--blue);
    border: 1px solid rgba(255, 255, 255, .28);
    border-radius: 50%;
    box-shadow: 0 7px 20px rgba(17, 28, 58, .2);
    cursor: pointer;
    transition: transform .18s ease, background-color .18s ease, box-shadow .18s ease;
}
.back-to-top:hover {
    color: #fff;
    background: var(--blue-deep);
    box-shadow: 0 10px 24px rgba(17, 28, 58, .24);
    transform: translateY(-2px);
}
.back-to-top:active { transform: translateY(0); }
.back-to-top i { font-size: 16px; }
.back-to-top[hidden] { display: none; }
@media (max-width: 520px) {
    .back-to-top {
        right: max(14px, env(safe-area-inset-right));
        bottom: max(14px, env(safe-area-inset-bottom));
        width: 46px;
        height: 46px;
    }
}
@media (prefers-reduced-motion: reduce) {
    .back-to-top { transition: none; }
}