/* HtPi — global stylesheet. Tokens + base + helpers + chrome + responsive. Fonts are linked in (preconnect) for performance; tokens below. */ @import url("tokens/colors.css"); @import url("tokens/typography.css"); @import url("tokens/spacing.css"); /* ── Base ──────────────────────────────────────────────────────────────── */ * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); -webkit-font-smoothing: antialiased; overflow-x: hidden; } a { color: inherit; text-decoration: none; } img { display: block; max-width: 100%; } [x-cloak] { display: none !important; } ::selection { background: var(--accent); color: var(--paper); } /* Page-level dark/ink variants set bg + text on via data-page-bg. */ body[data-page="ink"] { background: var(--ink); color: var(--paper); } body[data-page="petrol"]{ background: #0C1718; color: var(--paper); } body[data-page="deep"] { background: #15110D; color: var(--paper); } /* ── Bilingual toggle (in-place, no round-trip) ────────────────────────── */ html[data-lang="en"] .lang-zh { display: none !important; } html[data-lang="zh"] .lang-en { display: none !important; } .lang-zh { font-family: var(--font-zh); } /* clean Heiti CJK everywhere */ /* ── Motion ────────────────────────────────────────────────────────────── */ @keyframes htpi-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } } @keyframes htpi-bob { 0%,100% { transform: translateY(0); opacity: .6; } 50% { transform: translateY(7px); opacity: 1; } } .rise { animation: htpi-rise 1s ease both; } .wf { animation: htpi-rise .9s ease both; } @media (prefers-reduced-motion: reduce) { .rise, .wf { animation: none; } html { scroll-behavior: auto; } } /* ── Interactive primitives ────────────────────────────────────────────── */ .btn { transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 120ms ease; cursor: pointer; } .btn:active { transform: translateY(1px); } .navlink { transition: color 160ms ease; } .navlink:hover { color: var(--bronze); } .lnk { transition: color 160ms ease; cursor: pointer; } .lnk:hover { color: var(--accent) !important; } .field { transition: border-color 160ms ease; } .field:focus { outline: none; border-color: var(--accent) !important; } .artrow:hover .arttitle { color: var(--accent); } .artrow:hover .artarrow { opacity: 1; transform: translateX(0); } .tier:hover { border-color: var(--bronze) !important; } .clscard { transition: border-color 200ms ease, transform 200ms ease; } .clscard:hover { border-color: var(--bronze) !important; transform: translateY(-2px); } .step:hover { border-color: var(--bronze) !important; } /* Filter chips (Writing / Community) */ .chip { color: var(--ink-soft); background: transparent; border: 1px solid #C7BBAA; padding: 9px 16px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; cursor: pointer; } .chip.is-on { color: var(--paper); background: var(--ink); border-color: var(--ink); } .chip-dark { color: rgba(243,236,224,.7); background: transparent; border: 1px solid rgba(243,236,224,.25); padding: 8px 14px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; cursor: pointer; } .chip-dark.is-on { color: #211C17; background: #C9A05C; border-color: #C9A05C; } /* Long-form prose (article) + story columns (about) */ .prose p { margin: 0 0 26px; font-family: var(--font-display); font-weight: 400; font-size: 20px; line-height: 1.8; color: #2C261F; } .prose p.lead, .prose .lead p { font-size: 24px; line-height: 1.66; color: var(--ink); } .prose h2 { margin: 44px 0 18px; font-family: var(--font-display); font-weight: 500; font-size: 30px; line-height: 1.2; color: var(--ink); } .prose h3 { margin: 40px 0 16px; font-family: var(--font-display); font-weight: 500; font-size: 27px; line-height: 1.25; color: var(--ink); } .prose blockquote { margin: 36px 0; padding: 6px 0 6px 26px; border-left: 2px solid var(--bronze); font-family: var(--font-display); font-style: italic; font-size: 23px; line-height: 1.5; color: var(--ink-soft); } .prose a { color: var(--accent); border-bottom: 1px solid rgba(123,44,36,.35); } .prose ul, .prose ol { font-family: var(--font-display); font-size: 19px; line-height: 1.8; color: #2C261F; padding-left: 1.2em; } .prose code { font-family: var(--font-mono); font-size: .85em; background: var(--sand); padding: 2px 6px; border-radius: 3px; } .prose pre { background: var(--ink); color: var(--paper); padding: 20px; border-radius: 6px; overflow-x: auto; } .prose pre code { background: none; color: inherit; } .story p { margin: 0 0 24px; font-family: var(--font-display); font-weight: 400; font-size: 20px; line-height: 1.8; color: #2C261F; } /* Flash messages */ .flash { font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em; padding: 11px 14px; border-radius: 4px; } .flash--error { background: rgba(123,44,36,.1); color: var(--accent); border: 1px solid rgba(123,44,36,.3); } .flash--ok { background: rgba(31,111,74,.1); color: #1F6F4A; border: 1px solid rgba(31,111,74,.3); } /* ── Header / nav / mobile drawer ──────────────────────────────────────── */ .site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--hairline); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); } .site-header.is-over { position: fixed; left: 0; right: 0; } .hdr-light { background: rgba(243,236,224,.82); border-color: var(--hairline); } .hdr-dark { background: rgba(21,17,13,.7); border-color: rgba(243,236,224,.12); } .hdr-over { background: rgba(12,16,16,.55); border-color: rgba(243,236,224,.12); } .hdr-inner { max-width: 1180px; margin: 0 auto; padding: 15px 32px; display: flex; align-items: center; justify-content: space-between; gap: 24px; } .brand-lockup { display: flex; align-items: center; gap: 13px; } .brand-lockup img { height: 28px; width: auto; } .brand-word { font-weight: 500; font-size: 11px; letter-spacing: .34em; text-transform: uppercase; } .nav { display: flex; align-items: center; gap: 26px; } .nav .navlink { font-size: 14px; } .nav-sep { width: 1px; height: 18px; } .lang-btn { font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; background: transparent; border: 1px solid; padding: 7px 11px; cursor: pointer; } .cta { font-family: var(--font-body); font-weight: 600; font-size: 13px; padding: 9px 17px; } /* light header palette */ .hdr-light .brand-word, .hdr-light .nav .navlink { color: var(--ink-soft); } .hdr-light .nav-sep { background: var(--hairline); } .hdr-light .lang-btn { color: var(--ink-soft); border-color: #C7BBAA; } /* dark / over header palette */ .hdr-dark .brand-word, .hdr-over .brand-word, .hdr-dark .nav .navlink, .hdr-over .nav .navlink { color: rgba(243,236,224,.82); } .hdr-dark .nav-sep, .hdr-over .nav-sep { background: rgba(243,236,224,.18); } .hdr-dark .lang-btn, .hdr-over .lang-btn { color: rgba(243,236,224,.7); border-color: rgba(243,236,224,.28); } .navlink.is-active { color: var(--accent); } .hdr-dark .navlink.is-active, .hdr-over .navlink.is-active { color: var(--bronze); } .burger { display: none; } .menu-scrim { display: none; } @media (max-width: 640px) { .site-header { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; } .burger { display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; cursor: pointer; position: relative; z-index: 60; color: var(--muted); background: none; border: 0; font-size: 24px; line-height: 1; } .nav { position: fixed; top: 0; right: 0; height: 100vh; width: min(82vw, 320px); background: #15110D; flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 4px; padding: 82px 26px 26px; transform: translateX(100%); transition: transform .3s ease; box-shadow: -26px 0 60px rgba(0,0,0,.5); z-index: 55; } .nav.is-open { transform: translateX(0); } .nav .navlink { display: block; font-size: 18px !important; padding: 11px 0; color: #F3ECE0 !important; } .nav .nav-sep { display: none; } .nav .lang-btn { margin-top: 10px; color: #F3ECE0 !important; border-color: rgba(243,236,224,.3) !important; } .nav .cta { margin-top: 10px; } .menu-scrim.is-open { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 54; } } /* ── Layout grids (semantic; stack on small screens) ───────────────────── */ .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; } .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; } .grid-split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: center; } .grid-portrait { display: grid; grid-template-columns: 300px 1fr; gap: 60px; align-items: start; } .grid-checkout { display: grid; grid-template-columns: 1fr 1fr; } .grid-dash { display: grid; grid-template-columns: 1.5fr 1fr; gap: 28px; align-items: start; } .grid-community{ display: grid; grid-template-columns: 1fr 320px; gap: 40px; align-items: start; } .grid-auth { display: grid; grid-template-columns: 1.05fr 1fr; min-height: 100vh; } .grid-footer { display: grid; grid-template-columns: 1.4fr 1fr 1fr auto; gap: 40px; } .row-rec { display: grid; grid-template-columns: 120px 1fr auto auto; gap: 30px; align-items: baseline; } .row-rec-3 { display: grid; grid-template-columns: 118px 1fr auto; gap: 30px; align-items: baseline; } .row-past { display: grid; grid-template-columns: 90px 1fr auto; gap: 28px; align-items: center; } @media (max-width: 768px) { .grid-2, .grid-split, .grid-portrait, .grid-checkout, .grid-dash, .grid-community { grid-template-columns: 1fr !important; } .grid-footer { grid-template-columns: 1fr 1fr !important; gap: 28px !important; } .row-rec, .row-rec-3, .row-past { grid-template-columns: 1fr !important; gap: 8px !important; } } @media (max-width: 860px) { .grid-auth { grid-template-columns: 1fr !important; } .auth-art { display: none !important; } } @media (max-width: 760px) { .grid-3 { grid-template-columns: 1fr !important; } } /* utility */ .measure { max-width: 1180px; margin: 0 auto; } .wrap { max-width: 1180px; margin: 0 auto; padding-left: 32px; padding-right: 32px; } /* Soft cross-document navigation (progressive enhancement; Chromium today). */ @view-transition { navigation: auto; }