:root {
    --browser-accent: #b43d18;
    --browser-accent-dark: #8f2d10;
    --browser-text: #2f251f;
    --browser-muted: #766c65;
    --browser-line: #eadfd6;
    --browser-surface: #ffffff;
    --browser-soft: #fff8ee;
    --browser-green: #23875a;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--browser-text);
    background:
        radial-gradient(circle at 10% 0%, rgba(255, 214, 148, 0.32), transparent 32rem),
        linear-gradient(180deg, #f7fafc 0%, #eef2f6 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.browser-page-shell {
    width: 100%;
    max-width: 720px;
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.96);
}

.browser-page {
    overflow: hidden;
    min-height: 100vh;
    min-height: 100dvh;
    background: rgba(255, 255, 255, 0.96);
}

.browser-page-header {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 22px 19px;
    color: #fff;
    background: linear-gradient(135deg, #c14920 0%, #9d2f10 100%);
}

.browser-page-header::after {
    position: absolute;
    right: -38px;
    bottom: -58px;
    width: 160px;
    height: 160px;
    content: "";
    border-radius: 50%;
    background: rgba(255, 224, 171, 0.12);
}

.browser-back-link {
    position: relative;
    z-index: 1;
    display: grid;
    width: 40px;
    height: 40px;
    flex: 0 0 40px;
    place-items: center;
    color: #fff;
    text-decoration: none;
    font-size: 34px;
    line-height: 1;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 13px;
    background: rgba(255, 255, 255, 0.12);
}

.browser-page-header h1 {
    position: relative;
    z-index: 1;
    margin: 0;
    font-size: 23px;
    letter-spacing: 0.04em;
}

.browser-page-header p {
    position: relative;
    z-index: 1;
    margin: 5px 0 0;
    color: rgba(255, 255, 255, 0.82);
    font-size: 13px;
}

.browser-page-content {
    padding: 20px;
}

.browser-intro {
    margin: 0 0 16px;
    color: var(--browser-muted);
    font-size: 14px;
    line-height: 1.75;
}

.compatibility-card {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    padding: 14px;
    border: 1px solid #cfeade;
    border-radius: 16px;
    background: #f2fbf6;
}

.compatibility-card.is-limited {
    border-color: #f1d8af;
    background: #fff8ea;
}

.compatibility-icon {
    display: grid;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    place-items: center;
    color: #fff;
    border-radius: 50%;
    background: var(--browser-green);
    font-size: 20px;
    font-weight: 700;
}

.compatibility-card.is-limited .compatibility-icon {
    background: #d48a24;
}

.compatibility-card h2 {
    margin: 0 0 3px;
    color: #196d48;
    font-size: 15px;
}

.compatibility-card.is-limited h2 {
    color: #9a5d0b;
}

.compatibility-card p {
    margin: 0;
    color: var(--browser-muted);
    font-size: 12px;
    line-height: 1.55;
}

.browser-platform-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 7px;
    padding: 5px;
    border-radius: 14px;
    background: #f1f3f5;
}

.browser-platform-tab {
    min-height: 42px;
    padding: 0 8px;
    color: #6e6d70;
    border: 0;
    border-radius: 11px;
    background: transparent;
    font: inherit;
    font-size: 14px;
    cursor: pointer;
}

.browser-platform-tab[aria-selected="true"] {
    color: var(--browser-accent-dark);
    background: #fff;
    box-shadow: 0 3px 10px rgba(65, 59, 55, 0.11);
    font-weight: 700;
}

.browser-platform-panel {
    margin-top: 16px;
}

.browser-card-list {
    display: grid;
    gap: 12px;
}

.browser-card {
    padding: 16px;
    border: 1px solid var(--browser-line);
    border-radius: 18px;
    background: var(--browser-surface);
    box-shadow: 0 7px 18px rgba(58, 49, 42, 0.06);
}

.browser-card-heading {
    display: flex;
    align-items: flex-start;
    gap: 11px;
}

.browser-logo {
    display: grid;
    width: 45px;
    height: 45px;
    flex: 0 0 45px;
    place-items: center;
    color: #fff;
    border-radius: 14px;
    font-size: 24px;
    font-weight: 800;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
}

.browser-logo-edge {
    background: linear-gradient(145deg, #0eb4a5, #1968d5 72%);
    font-family: Georgia, serif;
    font-style: italic;
}

.browser-logo-firefox {
    background: linear-gradient(145deg, #ffad21, #f14c24 55%, #7133a8);
    font-size: 18px;
}

.browser-card-copy {
    min-width: 0;
    flex: 1;
}

.browser-card-copy h2 {
    margin: 1px 0 5px;
    font-size: 17px;
}

.browser-card-copy p {
    margin: 0;
    color: var(--browser-muted);
    font-size: 12px;
    line-height: 1.55;
}

.browser-tag {
    flex: 0 0 auto;
    padding: 4px 7px;
    color: var(--browser-accent-dark);
    border-radius: 999px;
    background: #fff0dc;
    font-size: 10px;
    font-weight: 700;
}

.browser-card-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    padding-top: 13px;
    border-top: 1px dashed var(--browser-line);
}

.browser-card-action > span {
    color: #888078;
    font-size: 11px;
    line-height: 1.55;
}

.browser-download-button,
.browser-wide-button {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    border-radius: 11px;
    background: linear-gradient(135deg, #c44a20, #9e2f10);
    box-shadow: 0 6px 13px rgba(173, 55, 19, 0.2);
    font-size: 13px;
    font-weight: 700;
}

.browser-download-button {
    min-width: 94px;
    padding: 0 13px;
}

.browser-legacy-download {
    margin-top: 11px;
    color: var(--browser-muted);
    font-size: 11px;
}

.browser-legacy-download summary {
    width: max-content;
    color: #7c5544;
    cursor: pointer;
}

.browser-legacy-download p {
    margin: 7px 0 0;
    line-height: 1.6;
}

.browser-legacy-download a,
.browser-secondary-card a {
    color: var(--browser-accent);
    font-weight: 700;
}

.browser-device-hint,
.browser-install-notice {
    margin-top: 12px;
    padding: 11px 13px;
    border-radius: 13px;
    font-size: 11px;
    line-height: 1.65;
}

.browser-device-hint {
    color: #3f5f79;
    border: 1px solid #cfe4f3;
    background: #f1f8fd;
}

.browser-install-notice {
    color: #796341;
    border: 1px solid #f0dfc0;
    background: #fffaf0;
}

.browser-simple-card {
    padding: 22px 18px;
    text-align: center;
    border: 1px solid var(--browser-line);
    border-radius: 18px;
    background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}

.browser-simple-icon {
    display: block;
    margin-bottom: 8px;
    font-size: 38px;
}

.browser-simple-card h2 {
    margin: 0 0 8px;
    font-size: 18px;
}

.browser-simple-card p {
    margin: 0;
    color: var(--browser-muted);
    font-size: 13px;
    line-height: 1.7;
}

.browser-installed-label {
    display: inline-block;
    margin-top: 13px;
    padding: 6px 12px;
    color: #237651;
    border-radius: 999px;
    background: #eaf8f1;
    font-size: 12px;
    font-weight: 700;
}

.browser-secondary-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 12px;
    padding: 14px;
    border: 1px solid var(--browser-line);
    border-radius: 15px;
}

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

.browser-secondary-card strong {
    margin-bottom: 4px;
    font-size: 13px;
}

.browser-secondary-card span {
    color: var(--browser-muted);
    font-size: 11px;
    line-height: 1.5;
}

.browser-secondary-card a {
    flex: 0 0 auto;
    text-decoration: none;
    font-size: 12px;
}

.browser-card-compact .browser-card-heading {
    align-items: center;
}

.browser-wide-button {
    width: 100%;
    margin-top: 14px;
}

.browser-source-note {
    display: flex;
    align-items: flex-start;
    gap: 7px;
    margin-top: 17px;
    color: #8b827b;
    font-size: 11px;
    line-height: 1.6;
}

.browser-source-note span {
    color: var(--browser-green);
    font-weight: 800;
}

@media (max-width: 370px) {
    .browser-page-content {
        padding: 16px 13px;
    }

    .browser-tag {
        display: none;
    }

    .browser-card {
        padding: 13px;
    }

    .browser-card-action {
        align-items: flex-end;
    }
}

@media (min-width: 768px) {
    .browser-page-shell {
        box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2);
    }

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

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