css实现全套液体玻璃ui控件代码-html代码-BFW代码库

代码语言：html
代码描述：css实现全套液体玻璃ui控件代码
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  

  
  
<style>
/* ==========================================================================
       LIQUID GLASS UI KIT
       Following CSS Guidelines (cssguidelin.es) — BEM methodology,
       single responsibility, progressive enhancement.
       ==========================================================================

       TABLE OF CONTENTS
       -----------------
        1.  Custom Properties — Complete Design Token System
        2.  Reset & Base
        3.  Light Theme Tokens
        4.  @supports — Graceful Degradation
        5.  prefers-reduced-motion
        6.  Animated Background Scene
        7.  Glass Utility Classes
        8.  Focus Visible
        9.  Component: Card
       10.  Component: Button
       11.  Component: Badge & Tag
       12.  Component: Input
       13.  Component: Checkbox & Radio
       14.  Component: Switch
       15.  Component: Navigation
       16.  Component: Tabs + Panels
       17.  Component: Accordion
       18.  Component: Modal / Dialog
       19.  Component: Toast / Snackbar
       20.  Component: Tooltip
       21.  Component: Dropdown / Select
       22.  Component: Chip
       23.  Component: Avatar Group
       24.  Component: Breadcrumb
       25.  Component: Skeleton Loader
       26.  Component: Stepper
       27.  Component: Data Table
       28.  12 Liquid Glass Animations
       29.  Page Layout & Hero
       30.  Theme Toggle Button
       31.  Responsive
       ========================================================================== */

/* --------------------------------------------------------------------------
       1. CUSTOM PROPERTIES — Complete Design Token System
       -------------------------------------------------------------------------- */
:root {
  /* ── Glass surface tints ── */
  --glass-white: rgba(255, 255, 255, 0.12);
  --glass-white-md: rgba(255, 255, 255, 0.2);
  --glass-white-lg: rgba(255, 255, 255, 0.3);
  --glass-dark: rgba(0, 0, 0, 0.18);
  --glass-dark-md: rgba(0, 0, 0, 0.28);

  /* ── Borders ── */
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-border-subtle: rgba(255, 255, 255, 0.12);
  --glass-border-bright: rgba(255, 255, 255, 0.5);

  /* ── Blur values ── */
  --blur-sm: blur(8px);
  --blur-md: blur(18px);
  --blur-lg: blur(32px);
  --blur-xl: blur(60px);

  /* ── Shadows ── */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  --shadow-float: 0 20px 60px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 40px rgba(120, 200, 255, 0.35);

  /* ── Reflections ── */
  --reflection-top: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.4) 0%,
    rgba(255, 255, 255, 0) 50%
  );
  --reflection-inner: inset 0 1px 1px rgba(255, 255, 255, 0.45),
    inset 0 -1px 1px rgba(0, 0, 0, 0.1);

  /* ── Colour palette ── */
  --accent-aqua: #5ee7df;
  --accent-violet: #b490f5;
  --accent-rose: #f7a8c4;
  --accent-amber: #ffd27f;
  --accent-lime: #a8f08a;

  /* ── Semantic surface / text ── */
  --color-bg: #0b0e1a;
  --color-surface: rgba(255, 255, 255, 0.04);
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.55);
  --color-text-subtle: rgba(255, 255, 255, 0.35);

  /* ── Spacing scale ── */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* ── Type scale ── */
  --text-2xs: 0.68rem;
  --text-xs: 0.75rem;
  --text-sm: 0.82rem;
  --text-md: 0.9rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.3rem;
  --text-2xl: 1.6rem;
  --text-3xl: 2rem;
  --text-4xl: 2.8rem;

  /* ── Radius scale ── */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* ── Z-index scale ── */
  --z-base: 1;
  --z-raised: 10;
  --z-overlay: 100;
  --z-modal: 500;
  --z-toast: 800;
  --z-tooltip: 900;

  /* ── Easing tokens ── */
  --ease-glass: cubic-bezier(0.22, 0.68, 0, 1.2);
  --ease-liquid: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);

  /* ── Duration tokens ── */
  --dur-fast: 180ms;
  --dur-mid: 360ms;
  --dur-slow: 600ms;

  /* ── Typography ── */
  --font-display: "Italiana", serif;
  --font-body: "DM Sans", sans-serif;
}

/* --------------------------------------------------------------------------
       3. LIGHT THEME TOKENS
       -------------------------------------------------------------------------- */
[data-theme="light"] {
  /* ── Surfaces ── */
  --glass-white: rgba(255, 255, 255, 0.62);
  --glass-white-md: rgba(255, 255, 255, 0.78);
  --glass-white-lg: rgba(255, 255, 255, 0.9);
  --glass-dark: rgba(0, 0, 0, 0.06);
  --glass-dark-md: rgba(15, 23, 42, 0.08);

  /* ── Borders — dark on light bg (white borders are invisible) ── */
  --glass-border: rgba(15, 23, 42, 0.14);
  --glass-border-subtle: rgba(15, 23, 42, 0.09);
  --glass-border-bright: rgba(15, 23, 42, 0.22);

  /* ── Shadows ── */
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --shadow-float: 0 20px 60px rgba(0, 0, 0, 0.16),
    0 4px 16px rgba(0, 0, 0, 0.08);

  /* ── Background ── */
  --color-bg: #e8f0fa;
  --color-surface: rgba(255, 255, 255, 0.55);
  --color-text: #0f172a;
  --color-text-muted: rgba(15, 23, 42, 0.58);
  --color-text-subtle: rgba(15, 23, 42, 0.38);

  /* ── Reflections ── */
  --reflection-top: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.65) 0%,
    rgba(255, 255, 255, 0) 50%
  );
  --reflection-inner: inset 0 1px 1px rgba(255, 255, 255, 0.95),
    inset 0 -1px 1px rgba(0, 0, 0, 0.04);

  /* ── Accent colours — darkened for WCAG AA on light backgrounds ── */
  --accent-aqua: #0891b2; /* cyan-600   — was #5ee7df */
  --accent-violet: #6d28d9; /* violet-700 — was #b490f5 */
  --accent-rose: #be185d; /* pink-700   — was #f7a8c4 */
  --accent-amber: #b45309; /* amber-700  — was #ffd27f */
  --accent-lime: #15803d; /* green-700  — was #a8f08a */
}

/* --------------------------------------------------------------------------
       4. @supports — Graceful Degradation
       When backdrop-filter is unsupported (older Firefox / Edge),
       fall back to a solid-ish semi-transparent surface.
       -------------------------------------------------------------------------- */
@supports not (backdrop-filter: blur(1px)) {
  .glass {
    background: rgba(20, 25, 45, 0.88) !important;
    border-color: rgba(255, 255, 255, 0.15) !important;
  }

  [data-theme="light"] .glass {
    background: rgba(255, 255, 255, 0.92) !important;
    border-color: rgba(15, 23, 42, 0.18) !important;
  }

  .glass-modal-backdrop {
    background: rgba(0, 0, 0, 0.7) !important;
  }
}

/* --------------------------------------------------------------------------
       5. prefers-reduced-motion — legal requirement in many markets
       -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .scene__blob {
    animation: none !important;
  }
  .hero__title,
  .hero__kicker,
  .hero__sub,
  .hero__cta,
  .stats,
  .section {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* --------------------------------------------------------------------------
       2. RESET & BASE
       -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
  min-height: 100vh;
  transition: background var(--dur-mid) var(--ease-smooth),
    color var(--dur-mid) var(--ease-smooth);
}

/* --------------------------------------------------------------------------
       6. ANIMATED BACKGROUND SCENE
       -------------------------------------------------------------------------- */
.scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.scene__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: blob-drift var(--dur, 18s) ease-in-out infinite alternate;
}

[data-theme="light"] .scene__blob {
  opacity: 0.3;
}

.scene__blob--1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, #5ee7df, #3b82f6);
  top: -200px;
  left: -150px;
  --dur: 22s;
}
.scene__blob--2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #b490f5, #ec4899);
  bottom: -200px;
  right: -100px;
  --dur: 17s;
  animation-delay: -8s;
}
.scene__blob--3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #ffd27f, #f7a8c4);
  top: 40%;
  left: 50%;
  --dur: 25s;
  animation-delay: -13s;
}

@keyframes blob-drift {
  0% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(60px, -40px) scale(1.08);
  }
  66% {
    transform: translate(-40px, 60px) scale(0.94);
  }
  100% {
    transform: translate(30px, 30px) scale(1.04);
  }
}

/* --------------------------------------------------------------------------
       7. GLASS UTILITY CLASSES
       -------------------------------------------------------------------------- */
.glass {
  backdrop-filter: var(--blur-md);
  -webkit-backdrop-filter: var(--blur-md);
  background: var(--glass-white);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  position: relative;
  overflow: hidden;
}

.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--reflection-top);
  pointer-events: none;
  border-radius: inherit;
  z-index: 1;
}

.glass--dark {
  background: var(--glass-dark-md);
  border-color: rgba(255, 255, 255, 0.1);
}
.glass--bright {
  background: var(--glass-white-lg);
  border-color: var(--glass-border-bright);
}
.glass--frosted {
  backdrop-filter: var(--blur-lg);
  -webkit-backdrop-filter: var(--blur-lg);
  background: rgba(255, 255, 255, 0.08);
}
.glass--liquid {
  backdrop-filter: var(--blur-xl);
  -webkit-backdrop-filter: var(--blur-xl);
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
}

/* --------------------------------------------------------------------------
       8. FOCUS VISIBLE — Keyboard accessibility
       -------------------------------------------------------------------------- */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--accent-aqua);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

.glass-btn:focus-visible,
.glass-nav__item:focus-visible,
.glass-toggle__opt:focus-visible {
  outline: 2px solid var(--accent-aqua);
  outline-offset: 2px;
}

.glass-input:focus-visible {
  outline: none; /* handled by box-shadow below */
}

/* --------------------------------------------------------------------------
       9. COMPONENT: CARD
       -------------------------------------------------------------------------- */
.glass-card {
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: transform var(--dur-mid) var(--ease-glass),
    box-shadow var(--dur-mid) var(--ease-glass), background var(--dur-mid);
}

.glass-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: var(--shadow-float);
  background: var(--glass-white-md);
}

.glass-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.22) 0%,
    rgba(255, 255, 255, 0) 40%,
    rgba(255, 255, 255, 0.08) 100%
  );
  opacity: 0;
  transition: opacity var(--dur-mid);
  pointer-events: none;
  z-index: 2;
}

.glass-card:hover::after {
  opacity: 1;
}

.glass-card__label {
  font-size: var(--text-2xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-bottom: var(--space-xs);
}
.glass-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}
.glass-card__body {
  font-size: var(--text-md);
  line-height: 1.65;
  opacity: 0.75;
}

/* --------------------------------------------------------------------------
       10. COMPONENT: BUTTON
       -------------------------------------------------------------------------- */
.glass-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text);
  text-decoration: none;
  transition: transform var(--dur-fast) var(--ease-liquid),
    box-shadow var(--dur-fast), background var(--dur-fast);
}

.glass-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--reflection-top);
  pointer-events: none;
}

.glass-btn:active {
  transform: scale(0.96);
}
.glass-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.glass-btn--primary {
  background: linear-gradient(
    135deg,
    rgba(94, 231, 223, 0.5) 0%,
    rgba(59, 130, 246, 0.5) 100%
  );
  border: 1px solid rgba(94, 231, 223, 0.45);
  box-shadow: 0 4px 24px rgba(94, 231, 223, 0.3), var(--reflection-inner);
}
.glass-btn--primary:hover {
  background: linear-gradient(
    135deg,
    rgba(94, 231, 223, 0.7) 0%,
    rgba(59, 130, 246, 0.7) 100%
  );
  box-shadow: 0 8px 36px rgba(94, 231, 223, 0.5), var(--reflection-inner);
  transform: translateY(-2px);
}

.glass-btn--ghost {
  background: var(--glass-white);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
}
.glass-btn--ghost:hover {
  background: var(--glass-white-md);
  transform: translateY(-2px);
}

.glass-btn--accent {
  background: linear-gradient(
    135deg,
    rgba(180, 144, 245, 0.5) 0%,
    rgba(247, 168, 196, 0.5) 100%
  );
  border: 1px solid rgba(180, 144, 245, 0.45);
  box-shadow: 0 4px 24px rgba(180, 144, 245, 0.3), var(--reflection-inner);
}
.glass-btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(180, 144, 245, 0.5), var(--reflection-inner);
}

.glass-btn--danger {
  background: linear-gradient(
    135deg,
    rgba(239, 68, 68, 0.45) 0%,
    rgba(220, 38, 38, 0.45) 100%
  );
  border: 1px solid rgba(239, 68, 68, 0.4);
  box-shadow: 0 4px 24px rgba(239, 68, 68, 0.25), var(--reflection-inner);
}
.glass-btn--danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(239, 68, 68, 0.45), var(--reflection-inner);
}

.glass-btn--icon {
  width: 48px;
  height: 48px;
  padding: 0;
  justify-content: center;
  line-height: 1;
}
.glass-btn--sm {
  padding: var(--space-2xs) var(--space-md);
  font-size: var(--text-xs);
}
.glass-btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
}

/* --------------------------------------------------------------------------
       11. COMPONENT: BADGE & TAG
       -------------------------------------------------------------------------- */
.glass-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: var(--text-2xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.glass-badge--aqua {
  background: rgba(94, 231, 223, 0.2);
  border: 1px solid rgba(94, 231, 223, 0.4);
  color: var(--accent-aqua);
  box-shadow: 0 0 12px rgba(94, 231, 223, 0.18);
}
.glass-badge--violet {
  background: rgba(180, 144, 245, 0.2);
  border: 1px solid rgba(180, 144, 245, 0.4);
  color: var(--accent-violet);
  box-shadow: 0 0 12px rgba(180, 144, 245, 0.18);
}
.glass-badge--rose {
  background: rgba(247, 168, 196, 0.2);
  border: 1px solid rgba(247, 168, 196, 0.4);
  color: var(--accent-rose);
}
.glass-badge--amber {
  background: rgba(255, 210, 127, 0.2);
  border: 1px solid rgba(255, 210, 127, 0.4);
  color: var(--accent-amber);
}
.glass-badge--lime {
  background: rgba(168, 240, 138, 0.2);
  border: 1px solid rgba(168, 240, 138, 0.4);
  color: var(--accent-lime);
}
.glass-badge--error {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

.glass-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-badge 2s ease infinite;
}

@keyframes pulse-badge {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}

.glass-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 400;
  background: var(--glass-white);
  border: 1px solid var(--glass-border-subtle);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  transition: transform var(--dur-fast) var(--ease-liquid),
    background var(--dur-fast);
  cursor: default;
}
.glass-tag:hover {
  background: var(--glass-white-md);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
       12. COMPONENT: INPUT
       -------------------------------------------------------------------------- */
.glass-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.glass-input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border-subtle);
  background: var(--glass-white);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-md);
  outline: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast),
    background var(--dur-fast);
}

.glass-input::placeholder {
  opacity: 0.45;
}
.glass-input:focus {
  border-color: rgba(94, 231, 223, 0.6);
  background: var(--glass-white-md);
  box-shadow: 0 0 0 3px rgba(94, 231, 223, 0.15), var(--shadow-glass);
}
.glass-input[aria-invalid="true"] {
  border-color: rgba(239, 68, 68, 0.6);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.glass-input-icon {
  position: absolute;
  right: 16px;
  opacity: 0.5;
  pointer-events: none;
  font-size: 1rem;
}

/* Textarea */
.glass-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border-subtle);
  background: var(--glass-white);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-md);
  outline: none;
  resize: vertical;
  min-height: 100px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast),
    background var(--dur-fast);
}
.glass-textarea::placeholder {
  opacity: 0.45;
}
.glass-textarea:focus {
  border-color: rgba(94, 231, 223, 0.6);
  background: var(--glass-white-md);
  box-shadow: 0 0 0 3px rgba(94, 231, 223, 0.15), var(--shadow-glass);
}

/* Select */
.glass-select {
  width: 100%;
  padding: var(--space-sm) 40px var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border-subtle);
  background: var(--glass-white);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-md);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='rgba(255,255,255,0.5)' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast),
    background-color var(--dur-fast);
}
.glass-select:focus {
  border-color: rgba(94, 231, 223, 0.6);
  box-shadow: 0 0 0 3px rgba(94, 231, 223, 0.15), var(--shadow-glass);
}
.glass-select option {
  background:.........完整代码请登录后点击上方下载按钮下载查看