/* ============================================================ Tingyu Dai — Sociology of AI Layout & typesetting adapted from xuanyouliu.com's academic structure (round portrait hero, animated section-title underline, 2-col about+news, 3-col research grid, badge publication cards, simple teaching list, 2-col contact), while preserving the "重写 Future" visual identity: electric blue + fluorescent green, interactive dot field, custom cursor blob, expandable pub abstracts. ============================================================ */ :root { /* surfaces */ --color-bg: #f7f7f9; --color-bg-alt: #eef0fa; --color-surface: #ffffff; /* ink — blue-black family */ --color-text: #0a0d2c; --color-text-muted: #555a78; --color-text-light: #8b8fa7; /* hairlines */ --color-border: #d6d8e6; --color-border-light: #e8e9f2; /* electric blue (replaces purple accent) */ --color-accent: #1b30ff; --color-accent-hover: #0014dd; --color-accent-deep: #0a18b8; --color-accent-light: rgba(27, 48, 255, 0.10); --color-on-accent: #ffffff; /* fluorescent green — highlight & hover pop */ --color-green: #d2ff3d; --color-green-soft: #e6ff80; /* text color that always reads on the green chip — same in both themes */ --color-on-green: #0a0d2c; /* type */ --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", Arial, sans-serif; --font-display: "Space Grotesk", "Inter", -apple-system, BlinkMacSystemFont, sans-serif; --font-serif: var(--font-display); /* xuanyouliu uses Merriweather for the academic feel — we substitute Space Grotesk for the poster look */ /* spacing scale */ --space-xs: 0.25rem; --space-sm: 0.5rem; --space-md: 1rem; --space-lg: 1.5rem; --space-xl: 2.5rem; --space-2xl: 4rem; --space-3xl: 6rem; /* layout */ --max-width: min(92vw, 1320px); --content-width: 800px; --border-radius: 4px; /* easings & transitions */ --transition-fast: 150ms ease; --transition-base: 250ms ease; --transition-slow: 400ms ease; --theme-transition-duration: 0.65s; --theme-transition-ease: cubic-bezier(.4, 0, .2, 1); --ease: cubic-bezier(.4, 0, .2, 1); --ease-out: cubic-bezier(.16, 1, .3, 1); --ease-press: cubic-bezier(.4, 0, .6, 1); /* elevation */ --shadow-soft: 0 1px 2px rgba(10, 13, 44, 0.04), 0 12px 32px -16px rgba(10, 13, 44, 0.12); --shadow-lift: 0 2px 6px rgba(10, 13, 44, 0.06), 0 26px 56px -22px rgba(10, 13, 44, 0.20); --shadow-blue: 0 1px 2px rgba(10, 13, 44, 0.08), 0 14px 32px -10px rgba(27, 48, 255, 0.45); /* nav surface — overridden per theme */ --nav-bg: rgba(247, 247, 249, 0.92); --nav-menu-overlay-bg: rgba(247, 247, 249, 0.65); } /* ============================================ Dark mode — applied when [data-theme="dark"] is set on , OR via prefers-color-scheme when no explicit override. ============================================ */ :root[data-theme="dark"], :root:not([data-theme]) { /* default: light (the :root block above) */ } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --color-bg: #0c0f24; --color-bg-alt: #161a3a; --color-surface: #1f2347; --color-text: #f4f5fb; --color-text-muted: #c3c7e0; --color-text-light: #8b90b2; --color-border: #3a3f70; --color-border-light: #262a52; --color-accent: #8a96ff; --color-accent-hover: #a8b1ff; --color-accent-deep: #6c7bff; --color-accent-light: rgba(138, 150, 255, 0.20); --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.40), 0 12px 32px -16px rgba(0, 0, 0, 0.65); --shadow-lift: 0 2px 6px rgba(0, 0, 0, 0.45), 0 26px 56px -22px rgba(0, 0, 0, 0.75); --shadow-blue: 0 1px 2px rgba(0, 0, 0, 0.40), 0 14px 32px -10px rgba(138, 150, 255, 0.55); --nav-bg: rgba(12, 15, 36, 0.88); --nav-menu-overlay-bg: rgba(12, 15, 36, 0.78); } } [data-theme="dark"] { --color-bg: #0c0f24; --color-bg-alt: #161a3a; --color-surface: #1f2347; --color-text: #f4f5fb; --color-text-muted: #c3c7e0; --color-text-light: #8b90b2; --color-border: #3a3f70; --color-border-light: #262a52; --color-accent: #8a96ff; --color-accent-hover: #a8b1ff; --color-accent-deep: #6c7bff; --color-accent-light: rgba(138, 150, 255, 0.20); --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.40), 0 12px 32px -16px rgba(0, 0, 0, 0.65); --shadow-lift: 0 2px 6px rgba(0, 0, 0, 0.45), 0 26px 56px -22px rgba(0, 0, 0, 0.75); --shadow-blue: 0 1px 2px rgba(0, 0, 0, 0.40), 0 14px 32px -10px rgba(138, 150, 255, 0.55); --nav-bg: rgba(12, 15, 36, 0.88); --nav-menu-overlay-bg: rgba(12, 15, 36, 0.78); } /* dark-mode component overrides */ [data-theme="dark"] .hero-text::before, [data-theme="dark"] .hero::before { background: none; } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero-text::before, :root:not([data-theme="light"]) .hero::before { background: none; } } /* Cursor blob: multiply blend disappears on dark bg → use screen so the solid dot lightens the dark canvas instead of being absorbed. The merged-state tint also swaps to green for clearer contrast on dark. */ /* dark mode: brighter translucent green so it pops on dark bg without any mix-blend-mode (which was Safari's primary cursor-lag cause) */ [data-theme="dark"] .cursor-blob::before { background: rgba(210, 255, 61, 0.55); } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .cursor-blob::before { background: rgba(210, 255, 61, 0.55); } } /* In dark mode, partial green highlighters become full green chips with dark text — light text was unreadable on the bright green band. */ [data-theme="dark"] .contact-note h3 { background-image: none; background-color: var(--color-green); color: var(--color-on-green); padding: 0.05em 0.4em; border-radius: 2px; } [data-theme="dark"] .pub-cue { background-image: linear-gradient(var(--color-green), var(--color-green)); padding: 2px 8px; border-radius: 2px; } [data-theme="dark"] .pub.open .pub-cue { color: var(--color-on-green); } @media (hover: hover) { @media (hover: hover) { [data-theme="dark"] .pub:hover .pub-cue{ color: var(--color-on-green); } } } /* Section-title highlight: push the green band entirely BELOW the text in dark mode so it reads as a chunky underline accent instead of overlapping the white letters. */ [data-theme="dark"] .section-title::after { bottom: -10px; height: 6px; z-index: 0; } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .contact-note h3 { background-image: none; background-color: var(--color-green); color: var(--color-on-green); padding: 0.05em 0.4em; border-radius: 2px; } :root:not([data-theme="light"]) .pub-cue { background-image: linear-gradient(var(--color-green), var(--color-green)); padding: 2px 8px; border-radius: 2px; } :root:not([data-theme="light"]) .pub.open .pub-cue { color: var(--color-on-green); } :root:not([data-theme="light"]) .section-title::after { bottom: -10px; height: 6px; z-index: 0; } } @media (prefers-color-scheme: dark) and (hover: hover) { @media (hover: hover) { :root:not([data-theme="light"]) .pub:hover .pub-cue{ color: var(--color-on-green); } } } /* smooth theme transitions on the colors that flip */ html.theme-transition, html.theme-transition *, html.theme-transition *::before, html.theme-transition *::after { transition: background-color var(--theme-transition-duration) var(--theme-transition-ease), background var(--theme-transition-duration) var(--theme-transition-ease), border-color var(--theme-transition-duration) var(--theme-transition-ease), color var(--theme-transition-duration) var(--theme-transition-ease), fill var(--theme-transition-duration) var(--theme-transition-ease), stroke var(--theme-transition-duration) var(--theme-transition-ease), box-shadow var(--theme-transition-duration) var(--theme-transition-ease), outline-color var(--theme-transition-duration) var(--theme-transition-ease), text-decoration-color var(--theme-transition-duration) var(--theme-transition-ease) !important; } @supports (view-transition-name: none) { html.theme-view-transition::view-transition-old(root), html.theme-view-transition::view-transition-new(root) { animation-duration: var(--theme-transition-duration); animation-timing-function: var(--theme-transition-ease); } html.theme-view-transition::view-transition-old(root) { z-index: 1; } html.theme-view-transition::view-transition-new(root) { z-index: 2; animation: theme-circle-reveal var(--theme-transition-duration) var(--theme-transition-ease) both; } @keyframes theme-circle-reveal { from { clip-path: circle(0 at var(--theme-origin-x, 50vw) var(--theme-origin-y, 2rem)); } to { clip-path: circle(var(--theme-reveal-radius, 150vmax) at var(--theme-origin-x, 50vw) var(--theme-origin-y, 2rem)); } } } @media (prefers-reduced-motion: reduce) { html.theme-transition, html.theme-transition *, html.theme-transition *::before, html.theme-transition *::after { transition-duration: 0.01ms !important; } html.theme-view-transition::view-transition-old(root), html.theme-view-transition::view-transition-new(root) { animation: none !important; } } *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { scroll-behavior: smooth; scroll-padding-top: var(--nav-scroll-offset, 5.5rem); font-size: 16px; scrollbar-gutter: stable; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } } body { font-family: var(--font-sans); font-size: 1rem; line-height: 1.7; color: var(--color-text); background-color: var(--color-bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; cursor: none; } /* hide OS cursor on interactive elements too, otherwise the hand cursor overrides our blob the moment you reach a link/button */ a, button, [role="button"], [data-cursor="grow"], .pub, .project-card { cursor: none; } /* Also include touchscreens with stylus that report hover:hover but pointer:coarse. */ @media (hover: none), (pointer: coarse), (max-width: 880px) { body, a, button, [role="button"], [data-cursor="grow"], .pub, .project-card { cursor: auto; } .cursor-blob { display: none !important; } } ::selection { background: var(--color-green); color: var(--color-on-green); } ::-moz-selection { background: var(--color-green); color: var(--color-on-green); } /* suppress Safari's default focus ring after a mouse click — that's what was painting the dark rectangle around the EMAIL button. */ :focus { outline: none; } :focus-visible { outline: 2px solid var(--color-accent); outline-offset: 4px; border-radius: var(--border-radius); } /* also kill iOS / Safari tap highlight flashes */ * { -webkit-tap-highlight-color: transparent; } .skip-link { position: absolute; top: -100%; left: 50%; transform: translateX(-50%); background-color: var(--color-text); color: #fff; padding: var(--space-sm) var(--space-md); border-radius: var(--border-radius); z-index: 10000; font-weight: 500; text-decoration: none; transition: top var(--transition-fast); } .skip-link:focus { top: var(--space-md); color: #fff; } /* ============================================ Typography ============================================ */ h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.18; letter-spacing: -0.03em; color: var(--color-text); } h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); } h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); } h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); } p { margin-bottom: 1em; } p:last-child { margin-bottom: 0; } a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); } @media (hover: hover) { a:hover{ color: var(--color-accent-hover); } } strong { font-weight: 600; } em { font-style: italic; color: var(--color-text); } /* Body copy — sparing marker highlight; plain strong for the rest */ .about-text strong { font-weight: 600; } .about-text .hl, #research .section-subtitle .hl { font-weight: 600; background-image: linear-gradient(transparent 72%, rgba(210, 255, 61, 0.65) 72%, rgba(210, 255, 61, 0.65) 94%, transparent 94%); padding: 0 2px; box-decoration-break: clone; -webkit-box-decoration-break: clone; } [data-theme="dark"] .about-text .hl, [data-theme="dark"] #research .section-subtitle .hl { background-image: linear-gradient(transparent 72%, rgba(210, 255, 61, 0.35) 72%, rgba(210, 255, 61, 0.35) 94%, transparent 94%); } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .about-text .hl, :root:not([data-theme="light"]) #research .section-subtitle .hl { background-image: linear-gradient(transparent 72%, rgba(210, 255, 61, 0.35) 72%, rgba(210, 255, 61, 0.35) 94%, transparent 94%); } } /* ============================================ Cursor blob (preserved from Tami's identity) ============================================ */ .cursor-blob { position: fixed; top: 0; left: 0; width: 14px; height: 14px; margin: -7px 0 0 -7px; pointer-events: none; z-index: 9999; opacity: 0; overflow: visible; background: transparent; transform: translate3d(0, 0, 0); transition: opacity 0.22s var(--ease); } .cursor-blob::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: rgba(27, 48, 255, 0.55); transform: scale(1); transform-origin: center; opacity: 1; transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), background 0.28s var(--ease-out), opacity 0.2s var(--ease-out); } .cursor-blob.visible { opacity: 1; } /* Grow: links / cards — large cursor stays visible */ .cursor-blob.grow::before { transform: scale(3.142857); background: rgba(210, 255, 61, 0.6); } /* Merge: fade out while the control fills from center (no swell-then-vanish) */ .cursor-blob.merge::before { opacity: 0; transform: scale(1); transition: opacity 0.14s var(--ease-out); } /* ============================================ Hover-wipe overlay — INCITE-style. Two colored layers + a clone of the thumbnail image cascade in from the top-left after a dwell. The final (image) layer reveals the picture from the corner. Shared by .pub-thumb and .project-image. ============================================ */ .pub-thumb, .project-image { overflow: hidden; } .pub-thumb > picture, .project-image > picture, .hero-image > picture { display: contents; } .wipe-layer { position: absolute; inset: 0; transform-origin: top left; transform: scale3d(0.001, 0.001, 1); opacity: 1; transition: transform 0.55s cubic-bezier(0.5, 0, 0.2, 1), opacity 0.36s cubic-bezier(0.4, 0, 0.2, 1); pointer-events: none; backface-visibility: hidden; } .wipe-layer.in { transform: scale3d(1, 1, 1); will-change: transform; } .wipe-layer.out { opacity: 0; } .wipe-layer.color-1 { background: var(--color-accent); z-index: 2; } .wipe-layer.color-2 { background: var(--color-green); z-index: 3; } .wipe-layer.image { z-index: 4; display: flex; align-items: center; justify-content: center; } .wipe-layer.image.wipe-layer-photo { display: block; } .wipe-layer.image .wipe-clone-img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; } /* ============================================ Dot canvas — fixed full-page backdrop. Visible behind transparent sections (About, Publications, Contact); covered by section-alt (Research, Teaching) for an alternating rhythm. ============================================ */ .dot-canvas { position: fixed; inset: 0; width: 100vw; /* dvh matches window.innerHeight while iOS URL bar animates, keeping the canvas backing store (W/H from JS) in sync with the CSS box. */ height: 100vh; height: 100dvh; z-index: 0; pointer-events: none; contain: strict; transform: translate3d(0, 0, 0); } /* ============================================ Scroll progress ============================================ */ .scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0%; background: var(--color-accent); z-index: 1001; transition: width .08s linear; } /* ============================================ Navigation ============================================ */ .nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: transparent; border-bottom: 1px solid transparent; transition: background var(--transition-base), border-color var(--transition-base); } /* Solid translucent bg instead of backdrop-filter blur — the blur is Safari's #1 performance killer on fixed bars (full-width compositing pass every frame). The visual cost is tiny, the perf win is big. */ .nav.scrolled, body.no-scroll .nav { background: var(--color-bg); border-bottom-color: var(--color-border-light); } .nav-inner { max-width: var(--max-width); margin: 0 auto; padding: var(--space-md) var(--space-lg); display: flex; align-items: center; justify-content: space-between; } .nav-logo { display: block; flex-shrink: 0; width: 40px; height: 40px; color: var(--color-accent); transition: transform 0.5s var(--ease-press), color 0.25s var(--ease); } .nav-logo-svg { display: block; width: 100%; height: 100%; overflow: visible; } .nav-logo-bg { fill: currentColor; transition: fill 0.25s var(--ease); } .nav-logo-mark, .nav-logo-dot { fill: #fff; transition: fill 0.25s var(--ease); } @media (hover: hover) { .nav-logo:hover{ transform: rotate(-90deg); color: var(--color-green); } .nav-logo:hover .nav-logo-mark, .nav-logo:hover .nav-logo-dot{ fill: #0a0d2c; } } /* Click/tap burst — works on touch and desktop. */ .nav-logo.is-tapped { animation: nav-logo-spin 0.7s cubic-bezier(0.34, 1.56, 0.64, 1); } .nav-logo.is-tapped .nav-logo-bg { animation: nav-logo-flash 0.7s ease-out; } .nav-logo.is-tapped .nav-logo-dot { transform-box: fill-box; transform-origin: center; animation: nav-logo-dot-pop 0.7s cubic-bezier(0.34, 1.56, 0.64, 1); } .nav-logo.is-tapped .nav-logo-mark { transform-box: fill-box; transform-origin: center; animation: nav-logo-mark-pop 0.7s cubic-bezier(0.34, 1.56, 0.64, 1); } @keyframes nav-logo-spin { 0% { transform: rotate(0) scale(1); } 35% { transform: rotate(-140deg) scale(1.18); } 70% { transform: rotate(-300deg) scale(0.92); } 100% { transform: rotate(-360deg) scale(1); } } @keyframes nav-logo-flash { 0% { fill: var(--color-accent); } 30% { fill: var(--color-green); } 100% { fill: var(--color-accent); } } @keyframes nav-logo-dot-pop { 0% { transform: scale(1); } 40% { transform: scale(2.2); } 100% { transform: scale(1); } } @keyframes nav-logo-mark-pop { 0%, 100% { transform: scale(1); } 40% { transform: scale(0.78); } } @media (prefers-reduced-motion: reduce) { .nav-logo.is-tapped, .nav-logo.is-tapped .nav-logo-bg, .nav-logo.is-tapped .nav-logo-dot, .nav-logo.is-tapped .nav-logo-mark { animation: none; } } .nav-links { display: flex; gap: var(--space-lg); margin-left: auto; margin-right: var(--space-lg); list-style: none; } .nav-links li { display: flex; align-items: center; } .nav-link { font-family: var(--font-display); font-size: 0.875rem; font-weight: 500; color: var(--color-text-muted); letter-spacing: 0.02em; position: relative; padding: 4px 0; } .nav-link::after { content: ''; position: absolute; /* Default = thin (hover state). .active explicitly overrides to the chunky bar. Keeping the thin geometry in the base means width is the only thing that animates on hover-out, so the bar shrinks at the thin weight instead of snapping back to chunky mid-retract. */ bottom: -3px; left: 0; width: 0; height: 2px; background-color: var(--color-accent); transition: width var(--transition-base); } [data-theme="dark"] .nav-link::after { background-color: var(--color-green); } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .nav-link::after { background-color: var(--color-green); } } @media (hover: hover) { .nav-link:hover{ color: var(--color-text); } } /* Hover inherits the thin base geometry; only width grows. */ @media (hover: hover) { .nav-link:hover::after{ width: 100%; } } .nav-link.active { color: var(--color-text); font-weight: 600; } /* Active = chunky highlighter bar. Overrides the thin base height/bottom. */ .nav-link.active::after { width: 100%; height: 5px; bottom: -6px; } .nav-controls { display: flex; align-items: center; gap: var(--space-sm); flex-shrink: 0; } .nav-toggle { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px; background: none; border: none; cursor: pointer; min-width: 44px; min-height: 44px; padding: var(--space-xs); margin-right: -8px; color: var(--color-text); } .nav-toggle span { width: 24px; height: 2px; background-color: currentColor; transition: transform var(--transition-fast), opacity var(--transition-fast); } .nav-toggle.active span:first-child { transform: rotate(45deg) translate(5px, 5px); } .nav-toggle.active span:last-child { transform: rotate(-45deg) translate(5px, -5px); } body.no-scroll { overflow: hidden; } /* circular icon button for theme toggle */ .theme-toggle { position: relative; isolation: isolate; display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0; background: transparent; border: 1.5px solid var(--color-border); border-radius: 50%; font-family: var(--font-display); font-size: 0.8125rem; font-weight: 700; color: var(--color-text); cursor: pointer; transition: border-color 0.32s cubic-bezier(0.16, 1, 0.3, 1), color var(--transition-base), transform 0.15s var(--ease-press); overflow: hidden; } .theme-toggle::before { content: ''; position: absolute; inset: 0; z-index: -1; border-radius: inherit; background: var(--color-accent-light); transform: scale(0); transform-origin: center; transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1); } @media (hover: hover) { .theme-toggle:hover{ border-color: var(--color-accent); } } @media (hover: hover) { .theme-toggle:hover::before{ transform: scale(1); } } .theme-toggle:active { transform: scale(0.92); } .theme-toggle.is-switching { transform: scale(0.94); border-color: var(--color-accent); } /* theme-toggle: crossfade sun/moon icons */ .theme-toggle .sun-icon, .theme-toggle .moon-icon { position: absolute; left: 50%; top: 50%; display: block; transition: opacity var(--theme-transition-duration) var(--theme-transition-ease), transform var(--theme-transition-duration) var(--theme-transition-ease); } .theme-toggle .sun-icon { opacity: 0; transform: translate(-50%, -50%) rotate(-60deg) scale(0.55); } .theme-toggle .moon-icon { opacity: 1; transform: translate(-50%, -50%) rotate(0deg) scale(1); } .theme-toggle.is-switching .sun-icon, .theme-toggle.is-switching .moon-icon { transition-duration: calc(var(--theme-transition-duration) * 0.85); } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .theme-toggle .sun-icon { opacity: 1; transform: translate(-50%, -50%) rotate(0deg) scale(1); } :root:not([data-theme="light"]) .theme-toggle .moon-icon { opacity: 0; transform: translate(-50%, -50%) rotate(60deg) scale(0.55); } } [data-theme="dark"] .theme-toggle .sun-icon { opacity: 1; transform: translate(-50%, -50%) rotate(0deg) scale(1); } [data-theme="dark"] .theme-toggle .moon-icon { opacity: 0; transform: translate(-50%, -50%) rotate(60deg) scale(0.55); } [data-theme="light"] .theme-toggle .sun-icon { opacity: 0; transform: translate(-50%, -50%) rotate(-60deg) scale(0.55); } [data-theme="light"] .theme-toggle .moon-icon { opacity: 1; transform: translate(-50%, -50%) rotate(0deg) scale(1); } /* ============================================ Hero ============================================ */ .hero { position: relative; display: flex; flex-direction: column; justify-content: center; padding: var(--space-3xl) var(--space-lg) var(--space-2xl); isolation: isolate; z-index: 2; overflow: hidden; } .hero::before { content: ''; position: absolute; top: 0; right: 0; width: 50%; height: 100%; background: linear-gradient(135deg, transparent 0%, var(--color-bg-alt) 100%); opacity: 0.45; z-index: -1; } .hero-content { max-width: var(--max-width); margin: 0 auto; width: 100%; display: grid; grid-template-columns: auto 1fr; gap: calc(var(--space-xl) + 1rem); align-items: center; } /* round portrait — adopted from xuanyouliu */ .hero-image-wrapper { position: relative; display: inline-flex; align-items: center; justify-content: center; padding: 14px; } .hero-image-accent { position: absolute; inset: 0; border-radius: 50%; border: 1.5px solid var(--color-accent); opacity: 0.4; transform: translate(14px, 14px) scale(0.94); pointer-events: none; transition: transform 0.5s var(--ease-out), opacity 0.4s ease, border-color 0.4s ease; } @media (hover: hover) { @media (hover: hover) { .hero-image-wrapper:hover .hero-image-accent{ transform: translate(18px, 18px) scale(0.94); opacity: 0.6; } } } .hero-image { width: 280px; height: 280px; flex-shrink: 0; border-radius: 50%; overflow: hidden; border: 2px solid var(--color-text); box-shadow: var(--shadow-blue); position: relative; isolation: isolate; transition: transform 0.5s var(--ease-out), box-shadow 0.4s ease; } @media (hover: hover) { @media (hover: hover) { .hero-image:hover{ transform: translateY(-4px) scale(1.02); box-shadow: 0 2px 4px rgba(10, 13, 44, 0.06), 0 30px 60px -15px rgba(27, 48, 255, 0.55); } } } /* Safari: percentage-sized img + object-fit inside overflow:hidden often mis-crops; absolute fill is reliable across browsers. */ .hero-image img, .hero-image .profile-img { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; object-fit: cover; object-position: 50% 42%; display: block; } .hero-image-corner { position: absolute; bottom: 10px; right: 10px; width: 24px; height: 24px; background: var(--color-green); border: 2px solid var(--color-text); border-radius: 50%; z-index: 3; } /* hero text */ .hero-text { max-width: 620px; position: relative; isolation: isolate; } .hero-text::before { content: ''; position: absolute; inset: -1.1rem -1.4rem; z-index: -1; background: radial-gradient(ellipse at center, rgba(247,247,249,0.92) 0%, transparent 72%); pointer-events: none; } .hero-greeting { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-size: 0.8125rem; font-weight: 600; color: var(--color-text-muted); margin-bottom: var(--space-sm); letter-spacing: 0.18em; text-transform: uppercase; } .hero-greeting::before { content: ''; width: 32px; height: 8px; background-color: var(--color-green); display: inline-block; flex-shrink: 0; } .hero-name { margin-bottom: var(--space-md); color: var(--color-text); display: inline-block; font-weight: 700; letter-spacing: -0.035em; transition: color 0.4s ease, transform 0.4s ease; } @media (hover: hover) { @media (hover: hover) { .hero-name:hover{ color: var(--color-accent); transform: scale(1.01); } } } .hero-title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; color: var(--color-accent); margin-bottom: var(--space-xs); letter-spacing: -0.012em; } .hero-affiliation { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.65; margin-bottom: var(--space-md); } .hero-affiliation a { color: var(--color-text); border-bottom: 1px solid var(--color-border); transition: color 0.25s ease, border-color 0.25s ease; } @media (hover: hover) { .hero-affiliation a:hover{ color: var(--color-accent); border-bottom-color: var(--color-accent); } } /* interest chips — preserved Tami style (border + green hover) */ .hero-interests { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin-bottom: var(--space-lg); } .hero-interests .interest-chip { position: relative; isolation: isolate; font-family: var(--font-display); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.04em; padding: 0.35rem 0.85rem; border: 1.5px solid var(--color-text); border-radius: 999px; color: var(--color-text); background: var(--color-surface); overflow: hidden; transition: color 0.32s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.32s cubic-bezier(0.16, 1, 0.3, 1), transform var(--transition-fast); } .hero-interests .interest-chip::before { content: ''; position: absolute; inset: 0; z-index: -1; border-radius: inherit; background: var(--color-green); transform: scale(0); transform-origin: center; transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1); } @media (hover: hover) { @media (hover: hover) { .hero-interests .interest-chip:hover{ color: var(--color-on-green); border-color: var(--color-on-green); } } @media (hover: hover) { .hero-interests .interest-chip:hover::before{ transform: scale(1); } } } .hero-links { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; } /* ============================================ Buttons ============================================ */ .btn { position: relative; isolation: isolate; display: inline-flex; align-items: center; gap: var(--space-sm); padding: var(--space-sm) var(--space-md); font-family: var(--font-display); font-size: 0.875rem; font-weight: 600; border-radius: var(--border-radius); overflow: hidden; /* explicit list — `transition: all` was making Safari re-evaluate background-color / box-shadow / color every paint, contributing to the EMAIL button's flicker on hover */ transition: color 0.32s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.32s cubic-bezier(0.16, 1, 0.3, 1), box-shadow var(--transition-fast); border: 1.5px solid transparent; text-transform: uppercase; letter-spacing: 0.05em; cursor: pointer; text-decoration: none; } .btn::before { content: ''; position: absolute; inset: 0; z-index: -1; border-radius: inherit; transform: scale(0); transform-origin: center; transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1); } .btn-primary, .btn-primary:focus, .btn-primary:focus-visible{ color: var(--color-on-accent); border-color: var(--color-accent); box-shadow: none; opacity: 1; } @media (hover: hover) { .btn-primary:hover{ color: var(--color-on-accent); border-color: var(--color-accent); box-shadow: none; opacity: 1; } } .btn-primary { background-color: var(--color-accent); } .btn-primary::before { background-color: var(--color-accent); } .btn-primary:focus::before, .btn-primary:focus-visible::before{ transform: scale(1); } @media (hover: hover) { .btn-primary:hover::before{ transform: scale(1); } } .btn-primary:active { transform: translateY(2px) scale(0.97); } .btn-secondary { background-color: transparent; color: var(--color-text); border-color: var(--color-text); } .btn-secondary::before { background-color: var(--color-bg-alt); } @media (hover: hover) { .btn-secondary:hover{ color: var(--color-text); border-color: var(--color-text); } } @media (hover: hover) { .btn-secondary:hover::before{ transform: scale(1); } } .btn-icon { padding: var(--space-sm); background-color: transparent; color: var(--color-text-muted); border-color: transparent; } @media (hover: hover) { .btn-icon:hover{ color: var(--color-accent); background-color: var(--color-accent-light); } } .btn-icon:active { transform: scale(0.9); } /* ============================================ Sections ============================================ */ .section { position: relative; padding: var(--space-2xl) var(--space-lg); z-index: 2; /* skip rendering/layout when off-screen — huge scroll-perf win on Safari, especially while the dot canvas is repainting */ content-visibility: auto; contain-intrinsic-size: auto 600px; scroll-margin-top: var(--nav-scroll-offset, 5.5rem); } .section-alt { background-color: var(--color-bg-alt); } .section-inner { width: 100%; max-width: var(--max-width); margin: 0 auto; position: relative; } /* section title — partial fluorescent-green highlighter band */ h2.section-title { font-size: clamp(1.75rem, 3vw, 2.4rem); margin-bottom: calc(var(--space-lg) + 10px); position: relative; display: inline-block; isolation: isolate; scroll-margin-top: var(--nav-scroll-offset, 5.5rem); transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1); transform-origin: 0 50%; will-change: transform; } h2.section-title.active { transform: scale(1.06); } .section-title::after { content: ''; position: absolute; bottom: 0.22em; left: -0.15em; width: 0; height: 0.42em; background-color: var(--color-green); z-index: -1; transition: width 0.7s var(--ease-out); } .section-title.active::after { width: 80%; } .section-subtitle { margin-top: calc(var(--space-md) * -1); margin-bottom: var(--space-xl); color: var(--color-text-muted); font-size: 0.9375rem; max-width: 64ch; line-height: 1.6; } /* ============================================ About ============================================ */ .about-content { display: grid; grid-template-columns: 2fr 1fr; gap: var(--space-xl); align-items: start; } .about-text .lead { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; line-height: 1.32; color: var(--color-text); margin-bottom: var(--space-lg); letter-spacing: -0.025em; text-wrap: balance; } .about-text p { font-size: 1rem; line-height: 1.75; color: var(--color-text-muted); margin-bottom: var(--space-md); } .about-text p:last-child { margin-bottom: 0; } .about-text strong { color: var(--color-text); } .about-text a { color: var(--color-accent); position: relative; transition: color 0.3s ease; } .about-text a::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 1px; background-color: var(--color-accent); transition: width 0.3s ease; } @media (hover: hover) { .about-text a:hover{ color: var(--color-accent-hover); } } @media (hover: hover) { .about-text a:hover::after{ width: 100%; } } /* about-news sidebar */ .about-news { position: sticky; /* JS keeps --nav-scroll-offset in sync with the live nav height. */ top: var(--nav-scroll-offset, 88px); } .about-news h3 { font-family: var(--font-display); font-size: 0.8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; color: var(--color-accent); margin-bottom: var(--space-md); } .news-list { list-style: none; } .news-list li { padding: var(--space-sm) var(--space-sm); margin: 0 calc(var(--space-sm) * -1); border-bottom: 1px solid var(--color-border-light); font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.6; transition: background-color 0.2s ease, transform 0.2s ease, color 0.2s ease, box-shadow 0.2s ease; border-radius: var(--border-radius); position: relative; } .news-list li:last-child { border-bottom: none; } .news-list li a { color: var(--color-text); border-bottom: 1px solid transparent; transition: border-color var(--transition-fast); } @media (hover: hover) { .news-list li a:hover{ border-bottom-color: var(--color-accent); } } @media (hover: hover) { @media (hover: hover) { .news-list li:hover{ background-color: var(--color-surface); transform: translateX(4px); color: var(--color-text); border-bottom-color: transparent; box-shadow: 0 2px 8px rgba(10,13,44,0.06); } } .news-list li::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%) scaleY(0); width: 3px; height: 70%; background-color: var(--color-green); border-radius: 2px; transition: transform 0.2s ease; opacity: 0; } @media (hover: hover) { .news-list li:hover::before{ transform: translateY(-50%) scaleY(1); opacity: 1; } } } .news-date { font-family: var(--font-display); font-weight: 600; font-size: 0.8125rem; color: var(--color-accent); margin-right: var(--space-sm); letter-spacing: 0.04em; } /* ============================================ Research (projects-grid) ============================================ */ #research.section-alt { /* Gaps and margins show the dot field at full strength */ background-color: transparent; } #research .project-card { background-color: transparent; } #research .project-content { background-color: transparent; } @media (hover: hover) { @media (hover: hover) { #research .project-card:hover .project-content{ background-color: transparent; } } @media (hover: hover) { #research .project-card:hover .project-desc::after{ background: linear-gradient(transparent, var(--color-bg)); } } } #research .project-desc::after { background: linear-gradient(transparent, var(--color-bg)); } /* Research cards: bold + highlight animate in when expanded */ #research .project-desc strong { font-weight: inherit; color: var(--color-text-muted); transition: font-weight 0.01s, color 0.42s var(--ease-out) 0.12s; } #research .project-desc .hl { --hl-band: rgba(210, 255, 61, 0.65); font-weight: inherit; color: var(--color-text-muted); background-image: linear-gradient(transparent 72%, var(--hl-band) 72%, var(--hl-band) 94%, transparent 94%); background-size: 0% 100%; background-repeat: no-repeat; padding: 0 2px; box-decoration-break: clone; -webkit-box-decoration-break: clone; transition: font-weight 0.01s, background-size 0.48s cubic-bezier(0.16, 1, 0.3, 1) 0.18s, color 0.42s var(--ease-out) 0.22s; } #research .project-desc a { color: var(--color-text-muted); border-bottom: 1px solid transparent; transition: color 0.42s var(--ease-out) 0.14s, border-color 0.42s var(--ease-out) 0.14s; } [data-theme="dark"] #research .project-desc .hl { --hl-band: rgba(210, 255, 61, 0.35); } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) #research .project-desc .hl { --hl-band: rgba(210, 255, 61, 0.35); } } @media (hover: hover) { #research .project-card.open .project-desc strong{ font-weight: 600; color: var(--color-text); } @media (hover: hover) { #research .project-card:hover .project-desc strong{ font-weight: 600; color: var(--color-text); } } #research .project-card.open .project-desc .hl{ font-weight: 600; background-size: 100% 100%; color: var(--color-text); } @media (hover: hover) { #research .project-card:hover .project-desc .hl{ font-weight: 600; background-size: 100% 100%; color: var(--color-text); } } #research .project-card.open .project-desc a{ color: var(--color-text); border-bottom-color: var(--color-border); } @media (hover: hover) { #research .project-card:hover .project-desc a{ color: var(--color-text); border-bottom-color: var(--color-border); } } } @media (hover: none) { #research .project-card.open .project-desc strong { font-weight: 600; color: var(--color-text); } #research .project-card.open .project-desc .hl { font-weight: 600; background-size: 100% 100%; color: var(--color-text); } #research .project-card.open .project-desc a { color: var(--color-text); border-bottom-color: var(--color-border); } } .projects-grid { display: grid; width: 100%; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); align-items: start; } .project-card { background-color: var(--color-surface); border-radius: var(--border-radius); overflow: hidden; border: 1px solid var(--color-border-light); transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.6s cubic-bezier(0.165, 0.84, 0.44, 1); position: relative; display: flex; flex-direction: column; } @media (hover: hover) { @media (hover: hover) { .project-card:hover{ box-shadow: var(--shadow-lift); transform: translateY(-6px) scale(1.01); border-color: var(--color-accent); z-index: 10; } } .project-card:active { transform: translateY(2px) scale(0.97); box-shadow: var(--shadow-soft); transition: transform 0.05s var(--ease), box-shadow 0.05s var(--ease); } } .project-image { aspect-ratio: 16 / 10; overflow: hidden; position: relative; display: block; background: var(--color-bg-alt); isolation: isolate; } .project-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; opacity: 0; transition: opacity 0.45s ease; } .project-image.loaded img, .project-image img.loaded { opacity: 1; } .project-image.is-wiping img { transition: opacity 0.45s ease; } .project-grad-1 { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-deep) 100%); } .project-grad-2 { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-green) 130%); } .project-grad-3 { background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%); } .project-content { padding: var(--space-md) var(--space-md) var(--space-md); flex-grow: 1; display: flex; flex-direction: column; background: var(--color-surface); transition: background-color 0.3s ease; } @media (hover: hover) { @media (hover: hover) { .project-card:hover .project-content{ background: var(--color-bg); } } } .project-title { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; letter-spacing: -0.022em; line-height: 1.25; margin-bottom: var(--space-sm); transition: color 0.3s ease; } @media (hover: hover) { @media (hover: hover) { .project-card:hover .project-title{ color: var(--color-accent); } } } .project-desc { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.6; margin-bottom: 0; max-height: 4.6em; overflow: hidden; position: relative; transition: max-height 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); } .project-desc p { margin: 0 0 0.75em; } .project-desc p:last-child { margin-bottom: 0; } .project-desc a { color: var(--color-text); border-bottom: 1px solid var(--color-border); transition: color 0.25s ease, border-color 0.25s ease; } @media (hover: hover) { .project-desc a:hover{ color: var(--color-accent); border-bottom-color: var(--color-accent); } } .project-desc::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1.5em; background: linear-gradient(transparent, var(--color-surface)); pointer-events: none; transition: opacity 0.5s ease; } @media (hover: hover) { @media (hover: hover) { .project-card:hover .project-desc{ max-height: 1000px; } } @media (hover: hover) { .project-card:hover .project-desc::after{ opacity: 0; } } @media (hover: hover) { .project-card:hover .project-content{ background: var(--color-surface); } } @media (hover: hover) { .project-card:hover .project-desc::after{ background: linear-gradient(transparent, var(--color-surface)); } } } /* ============================================ Publications — original Tami expandable rows ============================================ */ .pub-list { list-style: none; padding: 0; margin: 0; } .pub { border-top: 1px solid var(--color-border-light); cursor: pointer; transition: background .25s var(--ease); } .pub:first-child { border-top: 2px solid var(--color-text); } .pub:last-child { border-bottom: 2px solid var(--color-text); } .pub:focus-visible, .pub.open { outline: none; background: rgba(27, 48, 255, 0.025); } @media (hover: hover) { @media (hover: hover) { .pub:hover{ outline: none; background: rgba(27, 48, 255, 0.025); } } } .pub-row { display: grid; grid-template-columns: 96px 1fr; gap: 24px; padding: 32px 16px; align-items: start; } .pub-thumb { position: relative; width: 96px; flex-shrink: 0; aspect-ratio: auto; overflow: hidden; isolation: isolate; background: none !important; } /* Sized to the number in JS; do not span the full 96px grid column */ .pub-thumb .wipe-layer.wipe-layer-pub { inset: auto; top: 0; left: 0; } .pub-thumb-num { position: relative; z-index: 5; display: inline-block; width: fit-content; padding-top: 2px; font-family: var(--font-display); font-size: 52px; font-weight: 700; letter-spacing: -0.04em; line-height: 1; color: var(--color-text-light); text-shadow: none; font-variant-numeric: tabular-nums; transition: color .25s var(--ease); } .pub.open .pub-thumb-num { color: var(--color-accent); } @media (hover: hover) { @media (hover: hover) { .pub:hover .pub-thumb-num{ color: var(--color-accent); } } } /* Legacy gradient hooks — kept inert so existing HTML stays valid */ .pub-grad-1, .pub-grad-2, .pub-grad-3, .pub-grad-4 { background: none; } .pub-body { min-width: 0; transition: transform .35s var(--ease); } .pub.open .pub-body { transform: translateX(8px); } @media (hover: hover) { @media (hover: hover) { .pub:hover .pub-body{ transform: translateX(8px); } } } .pub-meta { font-family: var(--font-display); font-size: 11px; font-weight: 500; color: var(--color-text-muted); letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 10px; } /* Projects-only method tags — capsule pills */ .pub-topics { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; margin: 0 0 14px; padding: 0; list-style: none; font-family: var(--font-display); font-size: 0.75rem; line-height: 1; } .pub-topic { display: inline-flex; align-items: center; padding: 0.32rem 0.7rem; border: 1px solid color-mix(in srgb, var(--color-green) 55%, transparent); border-radius: 999px; background: color-mix(in srgb, var(--color-green) 14%, transparent); color: var(--color-accent); font-weight: 500; letter-spacing: 0.02em; transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease); } .pub.open .pub-topic { background: color-mix(in srgb, var(--color-green) 22%, transparent); border-color: color-mix(in srgb, var(--color-green) 75%, transparent); } @media (hover: hover) { @media (hover: hover) { .pub:hover .pub-topic{ background: color-mix(in srgb, var(--color-green) 22%, transparent); border-color: color-mix(in srgb, var(--color-green) 75%, transparent); } } } .pub-title { font-family: var(--font-display); font-size: clamp(20px, 2.2vw, 26px); font-weight: 700; line-height: 1.2; letter-spacing: -0.026em; color: var(--color-text); margin: 0 0 18px; text-wrap: balance; transition: color .25s var(--ease); } .pub.open .pub-title { color: var(--color-accent); } @media (hover: hover) { @media (hover: hover) { .pub:hover .pub-title{ color: var(--color-accent); } } } .pub-authors { font-size: 15px; color: var(--color-text-muted); margin: 0 0 10px; } .pub-authors strong { color: var(--color-text); } .pub-snip { font-size: 15px; color: var(--color-text-muted); line-height: 1.55; margin: 0; letter-spacing: -0.01em; text-wrap: pretty; } /* expand */ .pub-expand { max-height: 0; overflow: hidden; opacity: 0; transition: max-height .55s var(--ease-out), opacity .35s var(--ease), margin-top .35s var(--ease); margin-top: 0; } .pub.open .pub-expand { max-height: 1200px; opacity: 1; margin-top: 16px; } .pub-expand p { font-size: 15px; line-height: 1.6; color: var(--color-text-muted); margin: 0 0 12px; letter-spacing: -0.012em; max-width: none; } .pub-status { margin-top: 4px !important; padding-top: 14px; border-top: 1px solid var(--color-border-light); font-size: 14px; line-height: 1.55; color: var(--color-text-muted); } .pub-status-label { display: block; font-family: var(--font-display); font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-light); margin-bottom: 6px; } .pub-links { display: flex; flex-wrap: wrap; gap: 18px; margin: 14px 0 0 !important; font-family: var(--font-display); font-size: 14px; font-weight: 500; } .pub-links a { display: inline-flex; align-items: center; gap: 3px; color: var(--color-accent); position: relative; } .pub-links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); } @media (hover: hover) { .pub-links a:hover::after{ transform: scaleX(1); } } .pub-links .arrow { transition: transform .3s var(--ease); } @media (hover: hover) { .pub-links a:hover .arrow{ transform: translateX(3px); } } /* read more / show less cue */ .pub-cue { display: inline-flex; align-items: center; gap: 4px; margin-top: 16px; font-family: var(--font-display); font-size: 14px; font-weight: 700; color: var(--color-text); letter-spacing: -0.005em; background-image: linear-gradient(transparent 58%, var(--color-green) 58%, var(--color-green) 95%, transparent 95%); padding: 0 6px; background-size: 0% 100%; background-repeat: no-repeat; transition: background-size .35s var(--ease-out), color .25s var(--ease); } .pub.open .pub-cue { background-size: 100% 100%; } @media (hover: hover) { @media (hover: hover) { .pub:hover .pub-cue{ background-size: 100% 100%; } } } .pub-cue::after { content: " →"; display: inline-block; transition: transform .35s var(--ease); margin-left: 2px; } .pub.open .pub-cue::after { transform: rotate(90deg); } .pub-cue::before { content: attr(data-closed); } .pub.open .pub-cue::before { content: attr(data-open); } /* ============================================ Teaching ============================================ */ .teaching-list { display: flex; flex-direction: column; gap: var(--space-sm); } .course-item { display: block; padding: var(--space-md) var(--space-lg); background-color: var(--color-surface); border-radius: var(--border-radius); border: 1px solid var(--color-border-light); /* Needed so the ::before image layer is clipped to the rounded card. */ position: relative; overflow: hidden; } /* Hover image layer — sits behind the text, fades in on hover. Per-card bg-image is set via [data-hover-image] selectors below. */ .course-item::before { content: ''; position: absolute; inset: 0; background-size: cover; background-position: center; background-repeat: no-repeat; opacity: 0; transition: opacity 0.4s ease-in-out; z-index: 0; pointer-events: none; } .course-item > .course-info { position: relative; z-index: 1; } @media (hover: hover) { @media (hover: hover) { .course-item:hover::before{ opacity: 0.18; } } @media (hover: hover) { .course-item:hover{ border-color: var(--color-accent-light); } } } /* Per-item images (webp with jpg fallback for older Safari). */ .course-item[data-hover-image="meeting"]::before { background-image: url('Asset/meeting.jpg'); background-image: image-set( url('Asset/meeting.webp') type('image/webp'), url('Asset/meeting.jpg') type('image/jpeg') ); } .course-item[data-hover-image="ESL"]::before { background-image: url('Asset/ESL.jpg'); background-image: image-set( url('Asset/ESL.webp') type('image/webp'), url('Asset/ESL.jpg') type('image/jpeg') ); } .course-info { flex: 1; min-width: 0; display: flex; flex-direction: column; } .course-title { font-family: var(--font-display); font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.015em; margin-bottom: var(--space-xs); transition: color 0.25s ease; } .course-desc { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.6; max-width: none; margin: 0 0 var(--space-sm); } .course-meta { margin: 0; padding-top: var(--space-xs); } .course-term { font-family: var(--font-display); font-size: 0.8125rem; color: var(--color-text-light); letter-spacing: 0.04em; text-transform: uppercase; } /* ============================================ Contact ============================================ */ .contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: start; } .contact-details { display: flex; flex-direction: column; gap: var(--space-md); } /* contact items — blue line-icon + label + value, list style */ .contact-details { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--space-lg); } .contact-item { display: flex; align-items: flex-start; gap: var(--space-md); } .contact-glyph { flex-shrink: 0; color: var(--color-accent); margin-top: 4px; transition: transform 0.3s var(--ease); } @media (hover: hover) { /* Only the inner is interactive — scope the glyph lift to that, not the whole row (the SVG sits outside the link's hit area). */ @media (hover: hover) { .contact-item:has(a:hover) .contact-glyph{ transform: translateY(-2px); } } } .contact-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; } .contact-label { font-family: var(--font-display); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-text-light); } .contact-item a { font-family: var(--font-display); font-size: 1.0625rem; font-weight: 600; line-height: 1.45; letter-spacing: -0.012em; color: var(--color-text); border-bottom: 1px solid transparent; transition: color var(--transition-fast), border-color var(--transition-fast); align-self: flex-start; } @media (hover: hover) { .contact-item a:hover{ color: var(--color-accent); border-bottom-color: var(--color-accent); } } .contact-note { padding: var(--space-lg); background-color: var(--color-surface); border-radius: var(--border-radius); border: 1px solid var(--color-border-light); transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.6s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.3s ease; } @media (hover: hover) { @media (hover: hover) { .contact-note:hover{ box-shadow: var(--shadow-lift); transform: translateY(-6px) scale(1.01); border-color: var(--color-accent); z-index: 1; } } @media (hover: hover) { .contact-note:hover h3{ color: var(--color-accent); } } .contact-note:active { transform: translateY(2px) scale(0.97); box-shadow: var(--shadow-soft); transition: transform 0.05s var(--ease), box-shadow 0.05s var(--ease); } } @media (hover: none) { .contact-note:active { transform: scale(0.98); box-shadow: var(--shadow-soft); } } .contact-note h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: var(--space-md); color: var(--color-text); display: inline-block; background-image: linear-gradient(transparent 55%, var(--color-green) 55%, var(--color-green) 95%, transparent 95%); padding: 0 8px; } .contact-note p { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.65; } /* ============================================ Back to top ============================================ */ .back-to-top { position: fixed; /* env() reserves room for the iOS home indicator in landscape. */ bottom: max(30px, env(safe-area-inset-bottom)); right: max(30px, env(safe-area-inset-right)); width: 44px; height: 44px; background-color: var(--color-surface); border: 1px solid var(--color-border); border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); opacity: 0; visibility: hidden; transform: translateY(20px); transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base), background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base); z-index: 999; box-shadow: var(--shadow-soft); } @media (hover: hover) { .back-to-top:hover{ background-color: var(--color-green); border-color: var(--color-on-green); color: var(--color-on-green); transform: translateY(-2px); box-shadow: var(--shadow-soft); } } .back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); } /* ============================================ Footer ============================================ */ .footer { position: relative; padding: var(--space-lg) var(--space-lg); border-top: 1px solid var(--color-border); text-align: center; background: var(--color-bg); z-index: 2; } .footer-inner { max-width: var(--max-width); margin: 0 auto; } .footer p { font-family: var(--font-display); font-size: 0.8125rem; color: var(--color-text-muted); letter-spacing: 0.04em; } .footer-note { font-size: 0.75rem; color: var(--color-text-light); margin-top: var(--space-xs); } /* ============================================ Reveal-on-scroll ============================================ */ .animate-on-scroll { opacity: 0; transform: translateY(16px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); } .animate-on-scroll.is-visible { opacity: 1; transform: none; } /* ============================================ Responsive ============================================ */ @media (max-width: 1024px) { .about-content { grid-template-columns: 1fr; } .about-news { position: static; } } @media (max-width: 900px) { .hero { padding: var(--space-2xl) var(--space-lg); } .hero-content { grid-template-columns: 1fr; text-align: center; gap: var(--space-xl); } .hero-image-wrapper { justify-self: center; } .hero-image { width: 220px; height: 220px; } .hero-greeting { justify-content: center; } .hero-interests { justify-content: center; } .hero-text { max-width: 100%; } .hero-text::before { display: none; } .hero-links { justify-content: center; } .nav-toggle { display: flex; } .nav-inner { flex-wrap: wrap; } .nav-inner .nav-logo { flex-shrink: 0; } .nav-inner .nav-controls { order: 2; margin-left: auto; } .nav-inner .nav-links { order: 3; width: 100%; flex-basis: 100%; display: flex; flex-direction: column; gap: 0.125rem; margin-left: 0; margin-right: 0; max-height: 0; overflow: hidden; opacity: 0; transition: max-height var(--transition-slow), opacity var(--transition-base); } .nav-inner .nav-links li { display: block; } .nav-inner .nav-links .nav-link { display: inline-flex; align-items: center; min-height: 0; padding: 0.375rem 0; line-height: 1.3; width: fit-content; } .nav-inner .nav-links .nav-link::after { bottom: 2px; } .nav-inner .nav-links.active { max-height: 220px; opacity: 1; padding-top: var(--space-xs); padding-bottom: var(--space-sm); } body.no-scroll .nav { bottom: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; background: var(--nav-menu-overlay-bg); } .nav-inner { position: relative; z-index: 1; } .nav-inner::before { content: ''; position: absolute; left: 50%; transform: translateX(-50%); width: 100vw; top: 0; bottom: 0; background: var(--color-bg); border-bottom: 1px solid transparent; z-index: -1; opacity: 0; pointer-events: none; transition: opacity var(--transition-base), border-color var(--transition-base); } body.no-scroll .nav-inner::before { opacity: 1; border-bottom-color: var(--color-border-light); } .nav-inner .nav-links.nav-links--instant { transition: none !important; } .section { content-visibility: visible; contain-intrinsic-size: auto; } .pub-row { grid-template-columns: 1fr; gap: 0; padding: var(--space-lg) var(--space-sm); } .pub-thumb { display: none; } .pub.open .pub-body{ transform: none; } @media (hover: hover) { .pub:hover .pub-body{ transform: none; } } .contact-content { grid-template-columns: 1fr; } /* Research: stacked rows, compact horizontal cards (like xuanyouliu.com) */ .projects-grid { grid-template-columns: 1fr; gap: var(--space-md); } .project-card { display: grid; grid-template-columns: 120px 1fr; gap: 0; min-height: 120px; align-items: stretch; cursor: pointer; } .project-image { width: 120px; min-width: 120px; /* Image grows with the card via grid row stretch — intentional. */ height: 100%; aspect-ratio: auto; flex-shrink: 0; } .project-content { display: flex; flex-direction: column; /* flex-start instead of center: when closed the text group is shorter than the 120px min-height, so center pushed it down ~19px. As soon as the expand began and content passed 120px, justify-content stopped having slack and the title snapped upward — that was the "jump". */ justify-content: flex-start; padding: var(--space-sm) var(--space-md); min-width: 0; overflow: hidden; } .project-title { font-size: 1.0625rem; margin-bottom: var(--space-xs); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .project-desc { font-size: 0.9rem; /* 4.8em = 3 lines at line-height 1.6 (was 3.2em → 2 lines, felt empty). */ max-height: 4.8em; margin-bottom: 0; /* Bumped from 0.5s. The open transition below now targets a realistic max-height instead of 1000px, so the curve plays out across the visible range rather than finishing in the first ~100ms. */ transition: max-height 0.65s cubic-bezier(0.2, 0.8, 0.2, 1); } /* Compact: expand desc on tap (.open), not hover */ @media (hover: hover) { @media (hover: hover) { .project-card:hover .project-desc{ max-height: 4.8em; } } @media (hover: hover) { .project-card:hover .project-desc::after{ opacity: 1; } } } .project-card.open .project-content { overflow: visible; } .project-card.open .project-desc { /* 30em ≈ 432px — comfortably above any real card's copy (~250-350px) while staying close enough that the max-height curve doesn't waste most of its duration overshooting beyond the content. */ max-height: 30em; } .project-card.open .project-desc::after { opacity: 0; } } @media (max-width: 640px) { .section { padding: var(--space-xl) var(--space-md); } .hero { padding: var(--space-2xl) var(--space-md) var(--space-xl); } .nav-inner { padding: var(--space-sm) var(--space-md); } } /* ============================================ Reduced motion ============================================ */ @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } .dot-canvas { display: none; } .cursor-blob { display: none !important; } body { cursor: auto; } } /* ============================================ Print ============================================ */ @media print { body { font-size: 11pt; line-height: 1.45; color: #000; background: #fff; cursor: auto; } .scroll-progress, .nav, .footer, .dot-canvas, .cursor-blob, .back-to-top, .hero-image-wrapper, .pub-thumb, .project-image, .nav-toggle, .pub-cue { display: none !important; } .hero { padding: 0 0 12pt; border-bottom: 1px solid #aaa; } .hero-content { grid-template-columns: 1fr !important; padding: 0; gap: 8pt; } .section { padding: 12pt 0; break-inside: avoid; background: none; } .pub-row { grid-template-columns: 1fr !important; padding: 6pt 0 !important; } .pub-expand { max-height: none !important; opacity: 1 !important; margin-top: 6pt !important; } .about-content, .contact-content, .projects-grid { grid-template-columns: 1fr !important; gap: 8pt; } a { color: #000; text-decoration: underline; } }