/* ============================================================ 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; --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); } /* ============================================ 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); } } [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); } /* 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"] .hl-title, [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:hover .pub-cue, [data-theme="dark"] .pub.open .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"]) .hl-title, :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:hover .pub-cue, :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; } } /* 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 0.4s ease, border-color 0.4s ease, color 0.4s ease, fill 0.4s ease, stroke 0.4s ease, box-shadow 0.4s ease !important; } *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { scroll-behavior: smooth; 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, .course-item, .contact-item { cursor: none; } @media (hover: none), (max-width: 880px) { body, a, button, [role="button"], [data-cursor="grow"], .pub, .project-card, .course-item, .contact-item { 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); } a:hover { color: var(--color-accent-hover); } strong { font-weight: 600; } em { font-style: italic; color: var(--color-text); } /* fluorescent green highlight (kept from Tami's identity) */ .hl-title { display: inline; background-image: linear-gradient(transparent 62%, var(--color-green) 62%, var(--color-green) 96%, transparent 96%); padding: 0 8px; font-style: italic; font-weight: 700; } /* ============================================ 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; transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), background 0.28s var(--ease-out); } .cursor-blob.visible { opacity: 1; } /* Grow: for cards / links / nav — cursor swells into a soft green disc */ .cursor-blob.grow::before { transform: scale(3.142857); background: rgba(210, 255, 61, 0.6); } /* iPadOS-style: cursor disappears completely when it lands on a button/chip — element's own hover + magnet pull do the work. Instant fade-out so no translucent blue dot lingers over the button while the cursor crosses its edge. */ .cursor-blob.hidden { opacity: 0 !important; transition: opacity 0s !important; } /* ============================================ 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; } .wipe-layer { position: absolute; inset: 0; transform-origin: top left; transform: scale(0); transition: transform 0.55s cubic-bezier(0.5, 0, 0.2, 1); pointer-events: none; will-change: transform; } .wipe-layer.in { transform: scale(1); } .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; } /* ============================================ 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; height: 100vh; 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 { 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; background: var(--color-accent); transition: transform 0.4s var(--ease-press), background 0.25s var(--ease); } .nav-logo:hover { transform: rotate(-90deg); background: var(--color-green); } .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; bottom: -6px; left: 0; width: 0; height: 5px; 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); } } .nav-link:hover { color: var(--color-text); } .nav-link:hover::after { width: 100%; } .nav-link.active { color: var(--color-text); font-weight: 600; } .nav-link.active::after { width: 100%; } .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 { 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 var(--transition-base), background-color var(--transition-base), color var(--transition-base), transform 0.15s var(--ease-press); overflow: hidden; } .theme-toggle:hover { border-color: var(--color-accent); background-color: var(--color-accent-light); } .theme-toggle:active { transform: scale(0.92); } /* theme-toggle: swap sun/moon icons based on data-theme + system pref */ .theme-toggle svg { transition: transform 0.4s var(--ease-out); } .theme-toggle:hover svg { transform: rotate(15deg); } .theme-toggle .sun-icon { display: none; } .theme-toggle .moon-icon { display: block; } @media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .theme-toggle .sun-icon { display: block; } :root:not([data-theme="light"]) .theme-toggle .moon-icon { display: none; } } [data-theme="dark"] .theme-toggle .sun-icon { display: block; } [data-theme="dark"] .theme-toggle .moon-icon { display: none; } [data-theme="light"] .theme-toggle .sun-icon { display: none; } [data-theme="light"] .theme-toggle .moon-icon { display: block; } /* ============================================ 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; } .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; } .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-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: radial-gradient(120% 80% at 25% 18%, rgba(255,255,255,0.55), transparent 55%), linear-gradient(165deg, #c7ccff 0%, #d8dcff 100%); } .hero-image-initials { font-family: var(--font-display); font-size: 96px; font-weight: 700; letter-spacing: -0.05em; color: var(--color-accent); user-select: none; } .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; } .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; } .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 { 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); transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast); } /* chip activates on hover — cursor itself disappears (iPad behaviour); the green fill + colour swap is the cursor's "merged" state */ .hero-interests .interest-chip:hover { background: var(--color-green); color: var(--color-on-green); border-color: var(--color-on-green); } .hero-links { display: flex; flex-wrap: wrap; gap: var(--space-sm); align-items: center; } /* ============================================ Buttons ============================================ */ .btn { 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); /* 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: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast); border: 1.5px solid transparent; text-transform: uppercase; letter-spacing: 0.05em; cursor: pointer; text-decoration: none; } .btn-primary, .btn-primary:hover, .btn-primary:focus, .btn-primary:focus-visible { background-color: var(--color-accent); color: var(--color-on-accent); border-color: var(--color-accent); box-shadow: none; opacity: 1; } /* btn-primary stays in its baseline blue on hover — only the magnet pull provides feedback (per user request, no colour change). */ .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:hover { background-color: var(--color-bg-alt); color: var(--color-text); border-color: var(--color-text); } .btn-icon { padding: var(--space-sm); background-color: transparent; color: var(--color-text-muted); border-color: transparent; } .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; } .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; 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; } .about-text a:hover { color: var(--color-accent-hover); } .about-text a:hover::after { width: 100%; } /* about-news sidebar */ .about-news { position: sticky; top: 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); } .news-list li a:hover { border-bottom-color: var(--color-accent); } @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; } .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) { #research .project-card:hover .project-content { background-color: transparent; } #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)); } .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) { .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: flex; align-items: center; justify-content: center; } .project-glyph { font-family: var(--font-display); font-style: italic; font-size: 72px; font-weight: 600; color: #fff; letter-spacing: -0.04em; text-shadow: 0 4px 24px rgba(0,0,0,0.18); } .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-2 .project-glyph { color: var(--color-text); } .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) { .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) { .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: var(--space-sm); max-height: 4.6em; overflow: hidden; position: relative; transition: max-height 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); } .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) { .project-card:hover .project-desc { max-height: 1000px; } .project-card:hover .project-desc::after { opacity: 0; } .project-card:hover .project-content { background: var(--color-surface); } .project-card:hover .project-desc::after { background: linear-gradient(transparent, var(--color-surface)); } } .project-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--space-sm); } /* Desktop wide only: reveal tags on card hover */ @media (min-width: 901px) and (hover: hover) { .project-tags { max-height: 0; opacity: 0; overflow: hidden; margin-top: 0; transition: max-height 0.5s ease, opacity 0.5s ease, margin-top 0.5s ease; } .project-card:hover .project-tags { max-height: 200px; opacity: 1; margin-top: var(--space-sm); } } .project-tags span { font-family: var(--font-display); font-size: 0.7rem; font-weight: 500; padding: 3px 10px; border-radius: 999px; background-color: var(--color-bg); color: var(--color-text-muted); border: 1px solid var(--color-border); letter-spacing: 0.04em; text-transform: uppercase; flex-shrink: 0; } .project-tags .tag-blue { background-color: var(--color-accent-light); color: var(--color-accent); border-color: transparent; } /* ============================================ 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:hover, .pub:focus-visible, .pub.open { outline: none; background: rgba(27, 48, 255, 0.025); } .pub-row { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 32px 16px; align-items: start; transition: padding .35s var(--ease); } .pub:hover .pub-row, .pub.open .pub-row { padding-left: 28px; } .pub-thumb { position: relative; aspect-ratio: 4 / 3; overflow: hidden; display: flex; align-items: center; justify-content: center; } .pub-thumb-num { font-family: var(--font-display); font-size: 56px; font-weight: 700; letter-spacing: -0.04em; color: #fff; text-shadow: 0 4px 24px rgba(0,0,0,0.18); } .pub-grad-1 { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-deep) 100%); } .pub-grad-2 { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-green) 130%); } .pub-grad-2 .pub-thumb-num { color: var(--color-text); } .pub-grad-3 { background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%); } .pub-grad-4 { background: linear-gradient(135deg, #2a2e58 0%, #6e7185 100%); } .pub-body { min-width: 0; } .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; } .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 6px; text-wrap: balance; transition: color .25s var(--ease); } .pub:hover .pub-title, .pub.open .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: 700px; 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: 64ch; } .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); } .pub-links a:hover::after { transform: scaleX(1); } .pub-links .arrow { transition: transform .3s var(--ease); } .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:hover .pub-cue, .pub.open .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); } .dot-list { list-style: none; padding: 0; margin: 0; font-size: 15px; color: var(--color-text-muted); line-height: 1.6; } .dot-list li { position: relative; padding-left: 18px; margin: 0 0 8px; } .dot-list li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 6px; background: var(--color-accent); } /* ============================================ Teaching ============================================ */ .teaching-list { display: flex; flex-direction: column; gap: var(--space-sm); } .course-item { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-md); padding: var(--space-md) var(--space-lg); background-color: var(--color-surface); border-radius: var(--border-radius); border: 1px solid var(--color-border-light); transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base); cursor: pointer; } @media (hover: hover) { .course-item:hover { border-color: var(--color-accent); transform: translateX(4px); box-shadow: var(--shadow-soft); } .course-item:hover .course-title { color: var(--color-accent); } .course-item:hover .course-desc { color: var(--color-text); } .course-item:active { transform: scale(0.98); transition: transform 0.05s var(--ease); } } .course-info { flex: 1; min-width: 0; } .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: 65ch; } .course-meta { flex-shrink: 0; padding-top: 2px; } .course-term { font-family: var(--font-display); font-size: 0.8125rem; color: var(--color-text-light); letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap; } /* ============================================ Contact ============================================ */ .contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); align-items: start; } .contact-lead { font-family: var(--font-display); font-size: 1.75rem; font-weight: 700; line-height: 1.25; letter-spacing: -0.028em; margin-bottom: var(--space-lg); } .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); } .contact-item: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; } .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) { .contact-note:hover { box-shadow: var(--shadow-lift); transform: translateY(-6px) scale(1.01); border-color: var(--color-accent); z-index: 1; } .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; bottom: 30px; right: 30px; 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); } .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-image-initials { font-size: 72px; } .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; 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 { padding: var(--space-sm) 0; width: fit-content; } .nav-inner .nav-links .nav-link::after { bottom: 4px; } .nav-inner .nav-links.active { max-height: 320px; opacity: 1; padding-bottom: var(--space-sm); } .pub-row { grid-template-columns: 1fr; gap: 0; padding: var(--space-lg) var(--space-sm); } .pub-thumb { display: none; } .pub:hover .pub-row, .pub.open .pub-row { padding-left: var(--space-sm); } .course-item { flex-direction: column; align-items: flex-start; gap: var(--space-sm); } .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; height: 100%; aspect-ratio: auto; flex-shrink: 0; } .project-glyph { font-size: 40px; } .project-content { display: flex; flex-direction: column; justify-content: center; 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; max-height: 3.2em; margin-bottom: 0; transition: max-height 0.5s cubic-bezier(0.2, 0.8, 0.2, 1); } .project-tags { flex-shrink: 0; max-height: 0; opacity: 0; overflow: hidden; margin-top: 0; transition: max-height 0.5s ease, opacity 0.5s ease, margin-top 0.5s ease; } /* Compact: expand desc + tags on tap (.open), not hover */ @media (hover: hover) { .project-card:hover .project-desc { max-height: 3.2em; } .project-card:hover .project-desc::after { opacity: 1; } } .project-card.open .project-content { overflow: visible; } .project-card.open .project-desc { max-height: 1000px; } .project-card.open .project-desc::after { opacity: 0; } .project-card.open .project-tags { max-height: 200px; opacity: 1; margin-top: var(--space-xs); } } @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; } }