* {
    box-sizing: border-box;
}

:root {
    --bg: #f5f1e8;
    --bg-soft: #fbf7ef;
    --surface: rgba(255, 250, 242, 0.9);
    --surface-strong: rgba(255, 248, 238, 0.98);
    --surface-dark: #16202f;
    --surface-dark-2: #223149;
    --surface-accent: #fbefe0;
    --line: rgba(52, 43, 34, 0.08);
    --line-strong: rgba(52, 43, 34, 0.16);
    --text: #1d2430;
    --text-soft: #5d6171;
    --text-inverse: #f8f5ef;
    --brand: #f06f4f;
    --brand-strong: #ca5435;
    --brand-cool: #3d6bb6;
    --brand-gold: #c7962b;
    --success-bg: #e9f6ec;
    --success-text: #155f38;
    --error-bg: #fde8e8;
    --error-text: #9b1c1c;
    --shadow-soft: 0 18px 42px rgba(43, 34, 24, 0.08);
    --shadow-xl: 0 28px 90px rgba(18, 26, 40, 0.18);
    --radius-2xl: 34px;
    --radius-xl: 26px;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --sans: "Avenir Next", "Segoe UI Variable", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    font-family: var(--sans);
    background:
        radial-gradient(circle at top left, rgba(240, 111, 79, 0.18), transparent 32%),
        radial-gradient(circle at 88% 8%, rgba(61, 107, 182, 0.18), transparent 30%),
        linear-gradient(180deg, #f6f0e4 0%, #f8f5ee 36%, #f1ece3 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.28) 1px, transparent 1px);
    background-size: 28px 28px;
    opacity: 0.28;
    pointer-events: none;
    z-index: 0;
}

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

a:hover {
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

.site-shell {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-header {
    position: sticky;
    top: 18px;
    z-index: 50;
    width: min(1320px, calc(100% - 36px));
    margin: 18px auto 0;
    padding: 16px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 999px;
    background: rgba(24, 32, 47, 0.78);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(22px);
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    color: var(--text-inverse);
}

.site-brand-mark {
    width: 46px;
    height: 46px;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.34), transparent 52%),
        linear-gradient(135deg, var(--brand) 0%, var(--brand-cool) 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.32),
        0 14px 30px rgba(10, 18, 30, 0.24);
    color: #fff8f2;
    font-size: 0.88rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.site-brand-text {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.site-brand-title {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.site-brand-subtitle {
    color: rgba(248, 245, 239, 0.76);
    font-size: 0.82rem;
    line-height: 1.4;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.site-nav a {
    padding: 10px 14px;
    border-radius: 999px;
    color: rgba(248, 245, 239, 0.88);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.site-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    transform: translateY(-1px);
}

.header-actions {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.09);
}

.lang-switch button {
    border: none;
    background: transparent;
    color: rgba(248, 245, 239, 0.78);
    padding: 8px 13px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.lang-switch button:hover {
    color: #ffffff;
}

.lang-switch button.active {
    background: rgba(255, 249, 241, 0.95);
    color: var(--surface-dark);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.site-main,
.site-footer {
    width: min(1320px, calc(100% - 36px));
    margin-inline: auto;
}

.site-main {
    padding: 38px 0 56px;
}

.site-footer {
    margin-bottom: 28px;
}

.section {
    margin-bottom: 28px;
}

.hero-grid,
.page-hero,
.split-panel,
.two-col,
.contact-grid {
    display: grid;
    gap: 22px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(320px, 0.88fr);
}

.three-col,
.feature-grid,
.steps-grid,
.footer-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.four-col,
.pricing-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.hero-panel,
.callout-panel,
.stat-card,
.feature-card,
.form-card,
.plan-card,
.footer-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-2xl);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 250, 242, 0.9) 0%, rgba(255, 247, 238, 0.98) 100%);
    box-shadow: var(--shadow-soft);
    padding: 28px;
}

.card::before,
.hero-panel::before,
.callout-panel::before,
.stat-card::before,
.feature-card::before,
.form-card::before,
.plan-card::before,
.footer-card::before {
    content: "";
    position: absolute;
    inset: auto -10% -46% auto;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(61, 107, 182, 0.16), transparent 68%);
    pointer-events: none;
}

.hero-panel.primary {
    background:
        radial-gradient(circle at 18% 16%, rgba(240, 111, 79, 0.18), transparent 34%),
        radial-gradient(circle at 92% 12%, rgba(61, 107, 182, 0.16), transparent 28%),
        linear-gradient(135deg, rgba(255, 249, 241, 0.95) 0%, rgba(255, 245, 234, 0.98) 56%, rgba(255, 250, 244, 0.98) 100%);
    box-shadow: var(--shadow-xl);
}

.hero-panel.primary::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(130deg, rgba(255, 255, 255, 0.4), transparent 35%),
        linear-gradient(320deg, rgba(255, 255, 255, 0.28), transparent 44%);
    pointer-events: none;
}

.hero-panel.dark,
.panel-luxe-dark {
    background:
        radial-gradient(circle at top left, rgba(240, 111, 79, 0.2), transparent 28%),
        radial-gradient(circle at 80% 8%, rgba(123, 160, 220, 0.18), transparent 24%),
        linear-gradient(180deg, #202b3b 0%, #151d29 100%);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text-inverse);
    box-shadow: 0 28px 90px rgba(15, 21, 35, 0.28);
}

.hero-panel.dark::before,
.panel-luxe-dark::before {
    background: radial-gradient(circle, rgba(240, 111, 79, 0.24), transparent 66%);
}

.hero-panel.dark .muted,
.hero-panel.dark .support-note,
.panel-luxe-dark .muted {
    color: rgba(248, 245, 239, 0.72);
}

.hero-panel.dark .chip {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.1);
    color: #f8f5ef;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    color: var(--brand-strong);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand) 0%, var(--brand-cool) 100%);
}

.hero-panel.dark .eyebrow,
.panel-luxe-dark .eyebrow {
    color: #f4d5a3;
}

.hero-panel.dark .eyebrow::before,
.panel-luxe-dark .eyebrow::before {
    background: linear-gradient(90deg, #f4d5a3 0%, #ff8f70 100%);
}

h1,
h2,
h3 {
    margin: 0 0 14px;
    line-height: 1.05;
    letter-spacing: -0.02em;
    font-family: var(--serif);
    font-weight: 700;
}

h1 {
    font-size: clamp(2.7rem, 5vw, 5rem);
}

h2 {
    font-size: clamp(1.55rem, 2.3vw, 2.25rem);
}

h3 {
    font-size: 1.14rem;
}

p,
li {
    line-height: 1.72;
}

.lead {
    max-width: 66ch;
    font-size: 1.05rem;
}

.muted {
    color: var(--text-soft);
}

.support-note {
    color: rgba(39, 48, 61, 0.64);
    font-size: 0.92rem;
    line-height: 1.6;
}

.cta-row,
.chip-row,
.inline-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.chip-row {
    margin-top: 18px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 40px;
    padding: 0 15px;
    border-radius: 999px;
    border: 1px solid rgba(61, 107, 182, 0.15);
    background: rgba(255, 255, 255, 0.68);
    color: #2a3d5b;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-cool) 100%);
    color: #fff8f2;
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    box-shadow: 0 16px 28px rgba(67, 90, 140, 0.2);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 32px rgba(42, 58, 88, 0.24);
}

.btn.secondary {
    border-color: rgba(38, 49, 68, 0.12);
    background: rgba(255, 252, 246, 0.84);
    color: #263144;
    box-shadow: 0 14px 28px rgba(43, 34, 24, 0.08);
}

.btn.ghost {
    border-color: rgba(38, 49, 68, 0.16);
    background: transparent;
    color: #263144;
    box-shadow: none;
}

.stack-list,
.mini-list,
.timeline-list {
    display: grid;
    gap: 12px;
    margin: 0;
    padding-left: 20px;
}

.stack-list li::marker,
.mini-list li::marker {
    color: var(--brand-cool);
}

.mini-list {
    padding-left: 18px;
}

.value-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-card,
.feature-card,
.plan-card {
    padding: 22px;
    border-radius: var(--radius-xl);
}

.stat-card strong,
.feature-card strong,
.plan-card strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1rem;
}

.feature-card {
    min-height: 220px;
}

.feature-card strong {
    font-family: var(--serif);
    font-size: 1.16rem;
}

.plan-card {
    display: grid;
    gap: 10px;
}

.plan-card h2 {
    margin-bottom: 2px;
}

.plan-card strong {
    color: var(--brand-cool);
    font-size: 0.82rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.note-panel {
    background: linear-gradient(180deg, rgba(255, 247, 238, 0.88) 0%, rgba(255, 250, 244, 0.96) 100%);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    padding: 22px;
}

.form-card {
    background:
        radial-gradient(circle at top right, rgba(61, 107, 182, 0.14), transparent 26%),
        linear-gradient(180deg, rgba(255, 252, 246, 0.98) 0%, rgba(255, 247, 238, 0.96) 100%);
}

.form-grid {
    display: grid;
    gap: 16px;
}

.form-grid label {
    display: grid;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 700;
}

.form-grid input,
.form-grid textarea,
.form-grid select {
    width: 100%;
    border: 1px solid rgba(38, 49, 68, 0.12);
    border-radius: 18px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.88);
    font: inherit;
    color: var(--text);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.form-grid textarea {
    min-height: 130px;
    resize: vertical;
}

.form-grid input:focus,
.form-grid textarea:focus,
.form-grid select:focus {
    outline: none;
    border-color: rgba(61, 107, 182, 0.46);
    box-shadow: 0 0 0 4px rgba(61, 107, 182, 0.12);
}

.banner {
    display: none;
    margin-bottom: 16px;
    border-radius: 18px;
    padding: 13px 16px;
    font-size: 0.92rem;
    font-weight: 700;
}

.banner.visible {
    display: block;
}

.banner.success {
    background: var(--success-bg);
    color: var(--success-text);
}

.banner.error {
    background: var(--error-bg);
    color: var(--error-text);
}

.permission-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--line);
    background: rgba(255, 252, 246, 0.9);
}

.permission-table {
    width: 100%;
    border-collapse: collapse;
}

.permission-table th,
.permission-table td {
    padding: 15px 14px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.permission-table th {
    color: var(--brand-strong);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.site-footer {
    padding: 0 0 34px;
}

.footer-grid {
    margin-bottom: 16px;
}

.footer-card {
    padding: 22px;
    border-radius: var(--radius-xl);
    background:
        linear-gradient(180deg, rgba(255, 249, 242, 0.88) 0%, rgba(255, 245, 236, 0.96) 100%);
}

.footer-card h3 {
    margin-bottom: 12px;
}

.footer-card .mini-list {
    gap: 10px;
}

.footer-card .mini-list a,
.footer-card .mini-list span {
    color: var(--text-soft);
}

.hero-stage {
    display: grid;
    gap: 22px;
    grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
    align-items: stretch;
}

.hero-stage-panel {
    min-height: 100%;
}

.showcase-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.showcase-card,
.scenario-card,
.chapter-card,
.release-card,
.roadmap-card,
.index-card {
    display: grid;
    gap: 14px;
}

.showcase-card strong,
.chapter-card strong,
.release-card strong,
.scenario-card strong {
    font-size: 1.08rem;
    line-height: 1.35;
}

.metric-ribbon {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-chip {
    display: grid;
    gap: 6px;
    padding: 18px 18px 16px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(17, 25, 37, 0.76);
    color: var(--text-inverse);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.metric-chip strong {
    font-family: var(--serif);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
}

.metric-chip span {
    color: rgba(248, 245, 239, 0.76);
    font-size: 0.86rem;
    line-height: 1.45;
}

.evidence-console {
    display: grid;
    gap: 16px;
}

.console-card {
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(25, 35, 52, 0.94) 0%, rgba(18, 24, 37, 0.98) 100%);
    color: var(--text-inverse);
    padding: 22px;
    box-shadow: 0 26px 70px rgba(8, 13, 22, 0.3);
}

.console-card .muted {
    color: rgba(248, 245, 239, 0.68);
}

.console-stack {
    display: grid;
    gap: 12px;
}

.console-row {
    display: grid;
    gap: 10px;
    grid-template-columns: 1fr auto;
    align-items: start;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
}

.console-kicker {
    font-size: 0.73rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(248, 245, 239, 0.6);
}

.console-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 90px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(240, 111, 79, 0.18);
    color: #ffe8df;
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.scenario-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.scenario-card .eyebrow {
    margin-bottom: 0;
}

.page-index {
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1.15fr);
}

.chapter-grid,
.release-grid {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.guide-list,
.release-list {
    display: grid;
    gap: 12px;
}

.guide-list li,
.release-list li {
    list-style: none;
    position: relative;
    padding-left: 18px;
    color: var(--text-soft);
    line-height: 1.65;
}

.guide-list li::before,
.release-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-cool) 100%);
    box-shadow: 0 0 0 5px rgba(240, 111, 79, 0.1);
}

.timeline-band {
    display: grid;
    gap: 18px;
}

.timeline-entry {
    display: grid;
    gap: 14px;
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: start;
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(23, 58, 99, 0.08);
    color: var(--brand-cool);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.timeline-card {
    display: grid;
    gap: 12px;
    padding: 22px;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 250, 244, 0.92) 0%, rgba(255, 245, 236, 0.98) 100%);
    box-shadow: var(--shadow-soft);
}

.status-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(61, 107, 182, 0.08);
    color: var(--brand-cool);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.status-pill.hot {
    background: rgba(240, 111, 79, 0.12);
    color: var(--brand-strong);
}

.status-pill.gold {
    background: rgba(199, 150, 43, 0.12);
    color: #8e6511;
}

[data-l10n] {
    display: none;
}

html:not([data-lang]) [data-l10n="en"],
html[data-lang="en"] [data-l10n="en"],
html[data-lang="zh"] [data-l10n="zh"],
html[data-lang="es"] [data-l10n="es"] {
    display: inline;
}

.l10n-block[hidden],
[data-l10n][hidden] {
    display: none !important;
}

@media (max-width: 1180px) {
    .site-header {
        width: min(100%, calc(100% - 26px));
        padding: 16px 18px;
        border-radius: 28px;
        flex-wrap: wrap;
    }

    .site-main,
    .site-footer {
        width: min(100%, calc(100% - 26px));
    }

    .hero-grid,
    .page-hero,
    .split-panel,
    .two-col,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .three-col,
    .feature-grid,
    .steps-grid,
    .footer-grid,
    .value-grid,
    .showcase-grid,
    .scenario-grid,
    .metric-ribbon,
    .chapter-grid,
    .release-grid {
        grid-template-columns: 1fr;
    }

    .hero-stage,
    .page-index {
        grid-template-columns: 1fr;
    }

    .timeline-entry {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 860px) {
    .site-header {
        position: relative;
        top: 0;
        margin-top: 12px;
        flex-direction: column;
        align-items: stretch;
        border-radius: 24px;
    }

    .site-nav,
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .site-nav {
        gap: 6px;
    }

    .site-nav a {
        flex: 1 1 auto;
        text-align: center;
    }

    .site-main {
        padding-top: 24px;
    }

    .card,
    .hero-panel,
    .callout-panel,
    .stat-card,
    .feature-card,
    .form-card,
    .plan-card,
    .footer-card {
        padding: 22px;
        border-radius: 24px;
    }

    .cta-row,
    .chip-row,
    .inline-meta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 620px) {
    body::before {
        opacity: 0.14;
        background-size: 24px 24px;
    }

    .site-header,
    .site-main,
    .site-footer {
        width: min(100%, calc(100% - 18px));
    }

    .site-header {
        padding: 14px;
    }

    .site-brand {
        align-items: flex-start;
    }

    .site-brand-title {
        font-size: 1rem;
    }

    h1 {
        font-size: 2.25rem;
    }

    .four-col,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .lang-switch,
    .header-actions {
        width: 100%;
    }

    .lang-switch {
        justify-content: space-between;
    }

    .lang-switch button {
        flex: 1 1 0;
    }
}