/* ==========================================================================
云熔智算 / YunRong — Site CSS
Two style variants: A (Foundry Lab, default) and B (Quiet Precision)
Toggle via [data-style="b"] on
========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&family=Noto+Sans+SC:wght@300;400;500;700;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root {
/* Style A — Foundry Lab */
--bg: #0a0e1a;
--bg-elev: #0f1422;
--bg-card: #11172a;
--border: rgba(255, 255, 255, 0.08);
--border-strong: rgba(255, 255, 255, 0.16);
--text: #f5f5f5;
--text-dim: rgba(245, 245, 245, 0.6);
--text-faint: rgba(245, 245, 245, 0.4);
--accent: #ff4d2e;
--accent-glow: rgba(255, 77, 46, 0.4);
--accent-2: #06b6d4;
--accent-3: #fbbf24;
--grid: rgba(255, 255, 255, 0.04);
--grid-strong: rgba(255, 255, 255, 0.08);
--heat-0: #1a0a1a;
--heat-1: #4a0d2e;
--heat-2: #b91c1c;
--heat-3: #f97316;
--heat-4: #fbbf24;
--heat-5: #fef3c7;
--font-display: 'Space Grotesk', 'Noto Sans SC', sans-serif;
--font-body: 'IBM Plex Sans', 'Noto Sans SC', sans-serif;
--font-mono: 'IBM Plex Mono', ui-monospace, monospace;
--r-sm: 4px;
--r-md: 8px;
--r-lg: 16px;
--r-xl: 24px;
--nav-h: 64px;
--max-w: 1320px;
--gutter: clamp(20px, 4vw, 56px);
}
[data-style="b"] {
/* Style B — Quiet Precision */
--bg: #0a0a0a;
--bg-elev: #131313;
--bg-card: #161616;
--border: rgba(255, 255, 255, 0.07);
--border-strong: rgba(255, 255, 255, 0.14);
--text: #fafafa;
--text-dim: rgba(250, 250, 250, 0.58);
--text-faint: rgba(250, 250, 250, 0.36);
--accent: #ff6b3d;
--accent-glow: rgba(255, 107, 61, 0.35);
--accent-2: #e5e5e5;
--accent-3: #ff6b3d;
--grid: rgba(255, 255, 255, 0.025);
--grid-strong: rgba(255, 255, 255, 0.05);
}
* { box-sizing: border-box; }
html, body {
margin: 0;
padding: 0;
background: var(--bg);
color: var(--text);
font-family: var(--font-body);
font-size: 15px;
line-height: 1.55;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
scroll-behavior: smooth;
font-feature-settings: "ss01", "cv02", "cv11";
}
body {
overflow-x: hidden;
}
/* Bilingual: hide opposite-language elements */
[data-lang="en"] [data-zh] { display: none !important; }
[data-lang="zh"] [data-en] { display: none !important; }
/* CJK optical sizing: Chinese glyphs read smaller than Latin at the same point size */
[data-lang="zh"] :where([data-zh]) { font-size: 1.06em; }
/* Inline bilingual switch */
.bi { display: inline; }
[data-lang="en"] .bi[data-zh],
[data-lang="zh"] .bi[data-en] { display: none !important; }
a {
color: inherit;
text-decoration: none;
transition: color 0.18s ease, opacity 0.18s ease;
}
button {
font: inherit;
cursor: pointer;
border: none;
background: none;
color: inherit;
}
input, textarea, select {
font: inherit;
color: inherit;
background: transparent;
border: 1px solid var(--border);
border-radius: var(--r-sm);
padding: 12px 14px;
width: 100%;
outline: none;
transition: border-color 0.18s ease, background 0.18s ease;
}
select {
appearance: none;
-webkit-appearance: none;
background-image: url("data:image/svg+xml;utf8,");
background-repeat: no-repeat;
background-position: right 14px center;
padding-right: 36px;
cursor: pointer;
}
/* Make dropdown popup readable on all OS/browsers */
select option,
select optgroup {
background-color: #14182a;
color: #f5f5f5;
}
[data-style="b"] select option,
[data-style="b"] select optgroup {
background-color: #131313;
color: #fafafa;
}
input:focus, textarea:focus, select:focus {
border-color: var(--accent);
background: rgba(255, 77, 46, 0.04);
}
textarea {
resize: vertical;
min-height: 100px;
font-family: inherit;
}
/* ==========================================================================
Layout
========================================================================== */
.container {
max-width: var(--max-w);
margin: 0 auto;
padding-left: var(--gutter);
padding-right: var(--gutter);
width: 100%;
}
.section {
padding: clamp(80px, 12vw, 160px) 0;
position: relative;
min-height: 100vh;
display: flex;
flex-direction: column;
justify-content: center;
}
.section-tight {
padding: clamp(48px, 7vw, 96px) 0;
min-height: 0;
display: block;
}
/* Sections that own their internal scroll height (e.g. pillar rail) opt out */
.section.pillars {
min-height: 0;
display: block;
}
/* ==========================================================================
Typography
========================================================================== */
h1, h2, h3, h4 {
font-family: var(--font-display);
font-weight: 500;
letter-spacing: -0.02em;
margin: 0;
line-height: 1.05;
}
[lang="zh"], [data-zh], html[data-lang="zh"] h1, html[data-lang="zh"] h2, html[data-lang="zh"] h3 {
font-family: var(--font-body);
letter-spacing: -0.01em;
}
[data-lang="zh"] h1, [data-lang="zh"] h2, [data-lang="zh"] h3 {
font-family: 'Noto Sans SC', var(--font-body);
font-weight: 700;
}
.h-display {
font-size: clamp(48px, 6.8vw, 96px);
line-height: 0.98;
letter-spacing: -0.035em;
}
.h-xl {
font-size: clamp(36px, 4.5vw, 64px);
line-height: 1.04;
}
.h-lg {
font-size: clamp(28px, 3vw, 44px);
}
.h-md {
font-size: clamp(22px, 2vw, 28px);
}
.eyebrow {
font-family: var(--font-mono);
font-size: 14px;
text-transform: uppercase;
letter-spacing: 0.18em;
color: var(--accent);
font-weight: 500;
display: inline-flex;
align-items: center;
gap: 12px;
}
.eyebrow::before {
content: "";
display: inline-block;
width: 28px;
height: 1px;
background: var(--accent);
}
.eyebrow--center::before { content: none; }
.eyebrow--center::after { content: none; }
.mono {
font-family: var(--font-mono);
font-feature-settings: "ss01";
}
.dim { color: var(--text-dim); }
.faint { color: var(--text-faint); }
p {
margin: 0;
color: var(--text-dim);
font-size: clamp(15px, 1.05vw, 17px);
line-height: 1.65;
text-wrap: pretty;
}
p.lead {
font-size: clamp(18px, 1.4vw, 22px);
line-height: 1.5;
color: var(--text);
max-width: 60ch;
}
/* ==========================================================================
Buttons
========================================================================== */
.btn {
display: inline-flex;
align-items: center;
gap: 10px;
padding: 14px 22px;
border-radius: var(--r-sm);
font-family: var(--font-body);
font-weight: 500;
font-size: 14px;
letter-spacing: 0.01em;
border: 1px solid transparent;
transition: all 0.22s cubic-bezier(.2,.6,.2,1);
cursor: pointer;
position: relative;
white-space: nowrap;
}
.btn-primary {
background: var(--accent);
color: #fff;
box-shadow: 0 0 0 1px var(--accent), 0 12px 32px -10px var(--accent-glow);
}
.btn-primary:hover {
transform: translateY(-1px);
box-shadow: 0 0 0 1px var(--accent), 0 18px 40px -10px var(--accent-glow);
}
.btn-ghost {
background: transparent;
border-color: var(--border-strong);
color: var(--text);
}
.btn-ghost:hover {
border-color: var(--text);
background: rgba(255, 255, 255, 0.03);
}
.btn-link {
display: inline-flex;
align-items: center;
gap: 8px;
color: var(--accent);
font-family: var(--font-mono);
font-size: 13px;
letter-spacing: 0.04em;
text-transform: uppercase;
font-weight: 500;
}
.btn-link::after {
content: "→";
transition: transform 0.22s ease;
}
.btn-link:hover::after { transform: translateX(4px); }
/* ==========================================================================
Nav
========================================================================== */
.nav {
position: fixed;
top: 0;
left: 0;
right: 0;
z-index: 50;
height: var(--nav-h);
background: color-mix(in srgb, var(--bg) 78%, transparent);
backdrop-filter: blur(18px) saturate(1.2);
-webkit-backdrop-filter: blur(18px) saturate(1.2);
border-bottom: 1px solid var(--border);
}
.nav-inner {
height: 100%;
display: flex;
align-items: center;
justify-content: space-between;
gap: 32px;
}
.brand {
display: flex;
align-items: center;
gap: 12px;
font-family: var(--font-display);
font-weight: 600;
font-size: 15px;
letter-spacing: -0.01em;
}
.brand-mark {
width: 28px;
height: 28px;
display: inline-flex;
align-items: center;
justify-content: center;
position: relative;
}
.brand-mark svg { width: 100%; height: 100%; }
.brand-name { color: var(--text); font-family: 'Noto Sans SC', var(--font-body); font-weight: 700; }
.brand-sub { color: var(--text-faint); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; margin-left: 4px; }
/* PNG logos: render monochrome white on the dark theme so the navy
text + icon stay legible without needing per-element color variants. */
.brand-logo {
display: block;
height: 48px;
width: auto;
filter: brightness(0) invert(1);
}
.brand-logo-en { height: 48px; }
.brand-logo-footer { height: 60px; }
.brand-logo-footer.brand-logo-en { height: 60px; }
/* Logo is fixed per brand/domain (set pre-paint via [data-brand]), not by language */
.brand-logo-en { display: none; }
[data-brand="am"] .brand-logo-zh { display: none; }
[data-brand="am"] .brand-logo-en { display: block; }
@media (max-width: 720px) {
.brand-logo, .brand-logo-en { height: 38px; }
.brand-logo-footer, .brand-logo-footer.brand-logo-en { height: 48px; }
}
.nav-links {
display: flex;
align-items: center;
gap: 36px;
list-style: none;
margin: 0;
padding: 0;
}
.nav-links a {
font-size: 13px;
font-weight: 500;
color: var(--text-dim);
position: relative;
padding: 8px 0;
}
.nav-links a:hover, .nav-links a.is-active {
color: var(--text);
}
.nav-links a.is-active::after {
content: "";
position: absolute;
bottom: 2px;
left: 0; right: 0;
height: 1px;
background: var(--accent);
}
.nav-right {
display: flex;
align-items: center;
gap: 16px;
}
.lang-toggle {
display: inline-flex;
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.1em;
border: 1px solid var(--border-strong);
border-radius: 3px;
overflow: hidden;
}
.lang-toggle button {
padding: 6px 10px;
color: var(--text-dim);
background: transparent;
border: none;
cursor: pointer;
transition: all 0.18s;
}
.lang-toggle button.is-active {
background: var(--text);
color: var(--bg);
}
.btn-nav {
padding: 10px 18px;
font-size: 13px;
}
@media (max-width: 880px) {
.nav-links { display: none; }
.brand-sub { display: none; }
}
/* ==========================================================================
Grid background utility
========================================================================== */
.bg-grid {
position: absolute;
inset: 0;
background-image:
linear-gradient(to right, var(--grid) 1px, transparent 1px),
linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
background-size: 64px 64px;
mask-image: radial-gradient(ellipse at 50% 50%, #000 30%, transparent 75%);
pointer-events: none;
z-index: 0;
}
.bg-noise {
position: absolute;
inset: 0;
pointer-events: none;
opacity: 0.4;
mix-blend-mode: overlay;
background-image: url("data:image/svg+xml;utf8,");
z-index: 0;
}
.section-label {
display: flex;
align-items: baseline;
justify-content: space-between;
gap: 24px;
padding-bottom: 28px;
border-bottom: 1px solid var(--border);
margin-bottom: 64px;
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.18em;
text-transform: uppercase;
color: var(--text-faint);
flex-wrap: wrap;
}
.section-label > span:first-child {
font-family: var(--font-display);
font-size: clamp(15px, 1.1vw, 18px);
font-weight: 500;
letter-spacing: 0.02em;
text-transform: none;
color: var(--text-dim);
}
[data-lang="zh"] .section-label > span:first-child {
font-family: 'Noto Sans SC', var(--font-body);
font-weight: 700;
}
.section-label > span:first-child .idx {
color: var(--accent);
font-family: var(--font-mono);
font-weight: 500;
letter-spacing: 0.08em;
margin-right: 6px;
font-size: 0.82em;
}
.section-label > span:not(:first-child) {
font-family: var(--font-display);
font-size: clamp(15px, 1.1vw, 18px);
font-weight: 400;
letter-spacing: 0.01em;
text-transform: none;
color: var(--text-dim);
}
[data-lang="zh"] .section-label > span:not(:first-child) {
font-family: 'Noto Sans SC', var(--font-body);
}
/* ==========================================================================
Cards
========================================================================== */
.card {
background: var(--bg-card);
border: 1px solid var(--border);
border-radius: var(--r-md);
padding: 28px;
position: relative;
transition: border-color 0.22s, transform 0.22s, background 0.22s;
}
.card:hover {
border-color: var(--border-strong);
}
.card-glow:hover {
background: linear-gradient(160deg, var(--bg-card) 0%, color-mix(in srgb, var(--accent) 5%, var(--bg-card)) 100%);
border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
}
/* ==========================================================================
Footer
========================================================================== */
.footer {
border-top: 1px solid var(--border);
padding: 80px 0 36px;
background: var(--bg);
position: relative;
}
.footer-grid {
display: grid;
grid-template-columns: 2fr 1fr 1fr 1fr;
gap: 48px;
margin-bottom: 64px;
}
.footer h5 {
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.18em;
text-transform: uppercase;
color: var(--text-faint);
margin: 0 0 18px;
font-weight: 500;
}
.footer-links {
list-style: none;
padding: 0;
margin: 0;
display: flex;
flex-direction: column;
gap: 12px;
}
.footer-links a {
font-size: 14px;
color: var(--text-dim);
}
.footer-links a:hover { color: var(--text); }
.footer-bottom {
display: flex;
justify-content: space-between;
align-items: center;
padding-top: 32px;
border-top: 1px solid var(--border);
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.12em;
text-transform: uppercase;
color: var(--text-faint);
gap: 24px;
flex-wrap: wrap;
}
@media (max-width: 800px) {
.footer-grid { grid-template-columns: 1fr 1fr; }
}
/* ==========================================================================
Tweaks panel (always rendered, toggled by host)
========================================================================== */
#tweaks-panel {
position: fixed;
bottom: 24px;
right: 24px;
width: 280px;
background: rgba(20, 22, 32, 0.92);
backdrop-filter: blur(20px);
border: 1px solid var(--border-strong);
border-radius: var(--r-md);
z-index: 80;
font-family: var(--font-body);
display: none;
box-shadow: 0 24px 64px -12px rgba(0, 0, 0, 0.6);
}
#tweaks-panel.is-open { display: block; }
#tweaks-panel .tp-head {
display: flex;
justify-content: space-between;
align-items: center;
padding: 12px 16px;
border-bottom: 1px solid var(--border);
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.16em;
text-transform: uppercase;
color: var(--text-faint);
}
#tweaks-panel .tp-body { padding: 16px; display: flex; flex-direction: column; gap: 18px; }
.tp-group label {
display: block;
font-family: var(--font-mono);
font-size: 10px;
letter-spacing: 0.12em;
text-transform: uppercase;
color: var(--text-faint);
margin-bottom: 8px;
}
.tp-seg {
display: grid;
grid-template-columns: 1fr 1fr;
border: 1px solid var(--border-strong);
border-radius: var(--r-sm);
overflow: hidden;
}
.tp-seg button {
padding: 8px 10px;
font-size: 12px;
color: var(--text-dim);
background: transparent;
transition: all 0.16s;
}
.tp-seg button.is-active {
background: var(--accent);
color: #fff;
}
.tp-swatches { display: flex; gap: 8px; }
.tp-swatch {
width: 28px; height: 28px;
border-radius: 50%;
border: 2px solid transparent;
cursor: pointer;
position: relative;
outline: 1px solid var(--border);
}
.tp-swatch.is-active { border-color: var(--text); }
.tp-close {
font-size: 16px;
color: var(--text-dim);
width: 24px; height: 24px;
display: inline-flex; align-items: center; justify-content: center;
border-radius: 50%;
}
.tp-close:hover { background: rgba(255,255,255,0.06); color: var(--text); }
/* ==========================================================================
Misc utilities
========================================================================== */
.row { display: flex; gap: 16px; align-items: center; }
.row-wrap { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.col { display: flex; flex-direction: column; gap: 16px; }
.tag {
display: inline-flex;
align-items: center;
gap: 6px;
padding: 5px 10px;
font-family: var(--font-mono);
font-size: 10px;
letter-spacing: 0.12em;
text-transform: uppercase;
border: 1px solid var(--border-strong);
border-radius: 99px;
color: var(--text-dim);
}
.tag .dot {
width: 6px; height: 6px; border-radius: 50%;
background: var(--accent);
box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
main {
padding-top: var(--nav-h);
}
/* Subtle entrance */
.reveal {
opacity: 0;
transform: translate3d(0, 36px, 0);
transition:
opacity 0.8s cubic-bezier(0.22, 0.61, 0.36, 1),
transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.reveal.is-in { opacity: 1; transform: translate3d(0, 0, 0); }
@media (prefers-reduced-motion: reduce) {
.reveal { opacity: 1; transform: none; transition: none; }
}
/* ==========================================================================
Page header (used on inner pages)
========================================================================== */
.page-head {
position: relative;
padding: clamp(80px, 12vw, 140px) 0 clamp(48px, 6vw, 80px);
border-bottom: 1px solid var(--border);
overflow: hidden;
}
.page-head::before {
content: "";
position: absolute;
inset: 0;
background:
radial-gradient(ellipse at 90% 0%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 50%),
linear-gradient(180deg, color-mix(in srgb, var(--accent) 4%, transparent), transparent 60%);
pointer-events: none;
}
.page-head .container { position: relative; z-index: 1; }
.page-head .crumbs {
font-family: var(--font-mono);
font-size: 11px;
letter-spacing: 0.16em;
text-transform: uppercase;
color: var(--text-faint);
margin-bottom: 32px;
display: flex;
align-items: center;
gap: 10px;
}
.page-head .crumbs .sep { color: var(--text-faint); opacity: 0.5; }
.page-head .crumbs .cur { color: var(--accent); }
.page-head h1 {
margin-bottom: 24px;
max-width: 24ch;
}
.page-head .page-lead {
max-width: 56ch;
font-size: clamp(17px, 1.3vw, 21px);
line-height: 1.5;
color: var(--text);
}
/* Page header decorative grid */
.page-head .head-grid {
position: absolute;
inset: 0;
background-image:
linear-gradient(to right, var(--grid) 1px, transparent 1px),
linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
background-size: 48px 48px;
mask-image: radial-gradient(ellipse at 90% 0%, #000 10%, transparent 70%);
pointer-events: none;
opacity: 0.6;
}
/* Generic two-col content row used on inner pages */
.duo {
display: grid;
grid-template-columns: 5fr 7fr;
gap: 80px;
align-items: start;
}
.duo-reverse { grid-template-columns: 7fr 5fr; }
.duo-reverse > :first-child { order: 2; }
.duo-reverse > :last-child { order: 1; }
@media (max-width: 1000px) {
.duo, .duo-reverse { grid-template-columns: 1fr; gap: 32px; }
.duo-reverse > :first-child { order: 1; }
.duo-reverse > :last-child { order: 2; }
}
.duo-text h2 { margin-bottom: 20px; }
.duo-text .lead { margin-bottom: 24px; }
/* CTA strip used at bottom of inner pages */
.cta-strip {
border-top: 1px solid var(--border);
padding: clamp(48px, 6vw, 80px) 0;
background:
radial-gradient(ellipse at 20% 50%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 50%);
}
.cta-strip-inner {
display: flex;
justify-content: space-between;
align-items: center;
gap: 40px;
flex-wrap: wrap;
}
.cta-strip h2 { max-width: 22ch; }
.cta-strip .row-wrap { gap: 14px; }