:root {
      --color-amber-50: #fffbeb;
      --color-amber-100: #fef3c7;
      --color-amber-200: #fde68a;
      --color-amber-300: #fcd34d;
      --color-amber-400: #fbbf24;
      --color-amber-500: #f59e0b;
      --color-amber-600: #d97706;
      --color-amber-700: #b45309;
      --color-amber-800: #92400e;
      --color-amber-900: #78350f;

      --color-stone-50: #fafaf9;
      --color-stone-100: #f5f5f4;
      --color-stone-200: #e7e5e4;
      --color-stone-300: #d6d3d1;
      --color-stone-400: #a8a29e;
      --color-stone-500: #78716c;
      --color-stone-600: #57534e;
      --color-stone-700: #44403c;
      --color-stone-800: #292524;
      --color-stone-900: #1c1917;

      --color-white: #ffffff;
      --color-black: #000000;

      --font-sans: Arial, Helvetica, sans-serif;
      --font-serif: Georgia, 'Times New Roman', serif;

      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

      --transition-default: all 0.3s ease;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html,
    body {
      font-family: var(--font-sans);
      color: var(--color-stone-800);
      background-color: var(--color-white);
      line-height: 1.5;
      font-size: 16px;
    }

    ul {
      list-style: none;
    }

    img {
      max-width: 100%;
      height: auto;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    /* ========== Layout ========== */
    .container {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1rem;
      padding-right: 1rem;
    }

    .min-h-screen {
      min-height: 100vh;
    }

    .relative {
      position: relative;
    }

    .absolute {
      position: absolute;
    }

    .fixed {
      position: fixed;
    }

    .inset-0 {
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
    }

    .z-0 {
      z-index: 0;
    }

    .z-10 {
      z-index: 10;
    }

    .z-20 {
      z-index: 20;
    }

    .z-30 {
      z-index: 30;
    }

    .z-50 {
      z-index: 50;
    }

    .flex {
      display: flex;
    }

    .grid {
      display: grid;
    }

    .hidden {
      display: none;
    }

    .flex-col {
      flex-direction: column;
    }

    .flex-row {
      flex-direction: row;
    }

    .flex-wrap {
      flex-wrap: wrap;
    }

    .items-center {
      align-items: center;
    }

    .items-start {
      align-items: flex-start;
    }

    .items-end {
      align-items: flex-end;
    }

    .justify-center {
      justify-content: center;
    }

    .justify-between {
      justify-content: space-between;
    }

    .gap-2 {
      gap: 0.5rem;
    }

    .gap-4 {
      gap: 1rem;
    }

    .gap-6 {
      gap: 1.5rem;
    }

    .gap-8 {
      gap: 2rem;
    }

    .gap-12 {
      gap: 3rem;
    }

    .space-y-1>*+* {
      margin-top: 0.25rem;
    }

    .space-y-2>*+* {
      margin-top: 0.5rem;
    }

    .space-y-4>*+* {
      margin-top: 1rem;
    }

    .space-x-6>*+* {
      margin-left: 1.5rem;
    }

    .grid-cols-1 {
      grid-template-columns: repeat(1, minmax(0, 1fr));
    }

    .col-span-1 {
      grid-column: span 1 / span 1;
    }

    .col-span-2 {
      grid-column: span 2 / span 2;
    }

    .w-full {
      width: 100%;
    }

    .w-1 {
      width: 0.25rem;
    }

    .w-4 {
      width: 1rem;
    }

    .w-6 {
      width: 1.5rem;
    }

    .w-12 {
      width: 3rem;
    }

    .w-16 {
      width: 4rem;
    }

    .h-4 {
      height: 1rem;
    }

    .h-6 {
      height: 1.5rem;
    }

    .h-12 {
      height: 3rem;
    }

    .h-16 {
      height: 4rem;
    }

    .h-48 {
      height: 12rem;
    }

    .h-60 {
      height: 15rem;
    }

    .h-64 {
      height: 16rem;
    }

    .h-80 {
      height: 20rem;
    }

    .h-92 {
      height: 23.3rem;
    }


    .h-96 {
      height: 24rem;
    }

    .h-full {
      height: 100%;
    }


    .h-500 {
      height: 100%;
    }

    .h-screen {
      height: 600px;
    }

    .h-\[50vh\] {
      height: 50vh;
    }

    .h-\[60vh\] {
      height: 60vh;
    }

    .h-\[400px\] {
      height: 400px;
    }

    .h-\[500px\] {
      height: 500px;
    }

    .max-h-\[90vh\] {
      max-height: 90vh;
    }

    .max-w-none {
      max-width: none;
    }

    .max-w-2xl {
      max-width: 42rem;
    }

    .max-w-3xl {
      max-width: 48rem;
    }

    .max-w-4xl {
      max-width: 56rem;
    }

    .max-w-6xl {
      max-width: 72rem;
    }

    .overflow-hidden {
      overflow: hidden;
    }

    .overflow-auto {
      overflow: auto;
    }

    .rounded-md {
      border-radius: 0.375rem;
    }

    .rounded-lg {
      border-radius: 0.5rem;
    }

    .rounded-full {
      border-radius: 9999px;
    }

    .border-4 {
      border-width: 4px;
    }

    .border-t {
      border-top-width: 1px;
    }

    .border-amber-700 {
      border-color: var(--color-amber-700);
    }

    .border-stone-700 {
      border-color: var(--color-stone-700);
    }

    .object-cover {
      object-fit: cover;
    }

    .object-contain {
      object-fit: contain;
    }

    .p-2 {
      padding: 0.5rem;
    }

    .p-4 {
      padding: 1rem;
    }

    .p-6 {
      padding: 1.5rem;
    }

    .p-8 {
      padding: 2rem;
    }

    .px-2 {
      padding-left: 0.5rem;
      padding-right: 0.5rem;
    }

    .px-3 {
      padding-left: 0.75rem;
      padding-right: 0.75rem;
    }

    .px-4 {
      padding-left: 1rem;
      padding-right: 1rem;
    }

    .px-6 {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    .px-8 {
      padding-left: 2rem;
      padding-right: 2rem;
    }

    .py-1 {
      padding-top: 0.25rem;
      padding-bottom: 0.25rem;
    }

    .py-2 {
      padding-top: 0.5rem;
      padding-bottom: 0.5rem;
    }

    .py-3 {
      padding-top: 0.75rem;
      padding-bottom: 0.75rem;
    }

    .py-4 {
      padding-top: 1rem;
      padding-bottom: 1rem;
    }

    .py-6 {
      padding-top: 1.5rem;
      padding-bottom: 1.5rem;
    }

    .py-8 {
      padding-top: 2rem;
      padding-bottom: 2rem;
    }

    .py-12 {
      padding-top: 3rem;
      padding-bottom: 3rem;
    }

    .py-16 {
      padding-top: 4rem;
      padding-bottom: 4rem;
    }

    .py-20 {
      padding-top: 5rem;
      padding-bottom: 5rem;
    }

    .pt-8 {
      padding-top: 2rem;
    }

    .pb-2 {
      padding-bottom: 0.5rem;
    }

    .mb-1 {
      margin-bottom: 0.25rem;
    }

    .mb-2 {
      margin-bottom: 0.5rem;
    }

    .mb-3 {
      margin-bottom: 0.75rem;
    }

    .mb-4 {
      margin-bottom: 1rem;
    }

    .mb-6 {
      margin-bottom: 1.5rem;
    }

    .mb-8 {
      margin-bottom: 2rem;
    }

    .mb-12 {
      margin-bottom: 3rem;
    }

    .mb-16 {
      margin-bottom: 4rem;
    }

    .mb-20 {
      margin-bottom: 5rem;
    }

    .mt-1 {
      margin-top: 0.25rem;
    }

    .mt-2 {
      margin-top: 0.5rem;
    }

    .mt-4 {
      margin-top: 1rem;
    }

    .mt-8 {
      margin-top: 2rem;
    }

    .mt-12 {
      margin-top: 3rem;
    }

    .mx-auto {
      margin-left: auto;
      margin-right: auto;
    }

    .ml-auto {
      margin-left: auto;
    }

    .mr-auto {
      margin-right: auto;
    }

    .transform {
      transform: translateX(-50%);
    }

    .translate-x-1\/2 {
      transform: translateX(-50%);
    }

    .transition-colors {
      transition: color 0.3s ease, background-color 0.3s ease;
    }

    .transition-transform {
      transition: transform 0.5s ease;
    }

    .transition-opacity {
      transition: opacity 0.3s ease;
    }

    .transition-shadow {
      transition: box-shadow 0.3s ease;
    }

    .scale-105 {
      transform: scale(1.05);
    }

    .scale-110 {
      transform: scale(1.1);
    }

    .opacity-0 {
      opacity: 0;
    }

    .opacity-80 {
      opacity: 0.8;
    }

    .opacity-100 {
      opacity: 1;
    }

    .shadow-sm {
      box-shadow: var(--shadow-sm);
    }

    .shadow-md {
      box-shadow: var(--shadow-md);
    }

    .shadow-lg {
      box-shadow: var(--shadow-lg);
    }

    .shadow-xl {
      box-shadow: var(--shadow-xl);
    }

    /* ========== Typography ========== */
    .text-xs {
      font-size: 0.75rem;
    }

    .text-sm {
      font-size: 0.875rem;
    }

    .text-base {
      font-size: 1rem;
    }

    .text-lg {
      font-size: 1.125rem;
    }

    .text-xl {
      font-size: 1.25rem;
    }

    .text-2xl {
      font-size: 1.5rem;
    }

    .text-3xl {
      font-size: 1.875rem;
    }

    .text-4xl {
      font-size: 2.25rem;
    }

    .text-6xl {
      font-size: 3.75rem;
    }

    .font-medium {
      font-weight: 500;
    }

    .font-bold {
      font-weight: 700;
    }

    .font-serif {
      font-family: var(--font-serif);
    }

    .text-center {
      text-align: center;
    }

    .text-white {
      color: var(--color-white);
    }

    .text-black {
      color: var(--color-black);
    }

    .text-amber-50 {
      color: var(--color-amber-50);
    }

    .text-amber-100 {
      color: var(--color-amber-100);
    }

    .text-amber-200 {
      color: var(--color-amber-200);
    }

    .text-amber-400 {
      color: var(--color-amber-400);
    }

    .text-amber-600 {
      color: var(--color-amber-600);
    }

    .text-amber-700 {
      color: var(--color-amber-700);
    }

    .text-amber-800 {
      color: var(--color-amber-800);
    }

    .text-stone-300 {
      color: var(--color-stone-300);
    }

    .text-stone-400 {
      color: var(--color-stone-400);

    }

    .text-stone-500 {
      color: var(--color-stone-500);
    }

    .text-stone-600 {
      color: var(--color-stone-600);
    }

    .text-stone-700 {
      color: var(--color-stone-700);
    }

    .text-stone-800 {
      color: var(--color-stone-800);
    }

    .text-white\/90 {
      color: rgba(255, 255, 255, 0.9);
    }

    .leading-relaxed {
      line-height: 1.625;
    }

    .list-disc {
      list-style-type: disc;
    }

    .list-inside {
      list-style-position: inside;
    }

    /* ========== Backgrounds ========== */
    .bg-white {
      background-color: var(--color-white);
      background: url(../images/bg.jpg);
    }

    .bg-white1 {
      background-color: rgb(248, 248, 248);

    }

    .bg-black {
      background-color: var(--color-black);

    }

    .bg-amber-50 {
      background-color: var(--color-amber-50);

    }

    .bg-amber-100 {
      background-color: var(--color-amber-100);

    }

    .bg-amber-500 {
      background-color: var(--color-amber-500);
    }

    .bg-amber-600 {
      background-color: var(--color-amber-600);
    }

    .bg-amber-700 {
      background-color: var(--color-amber-700);
    }

    .bg-stone-50 {
      background-color: var(--color-stone-50);
    }

    .bg-stone-100 {

      background: url(../images/bg2.jpg);
      background-repeat: no-repeat;
      background-size: cover;
    }

    .bg-stone-200 {
      background-color: var(--color-stone-200);
    }

    .bg-stone-700 {
      background-color: var(--color-stone-700);
    }

    .bg-stone-800 {
      background-color: var(--color-stone-800);
    }

    .bg-stone-900 {
      background-color: var(--color-stone-900);
    }

    .bg-black\/40 {
      background-color: rgba(0, 0, 0, 0.4);
    }

    .bg-black\/50 {
      background-color: rgba(0, 0, 0, 0.5);
    }

    .bg-black\/70 {
      background-color: rgba(0, 0, 0, 0.7);
    }

    .bg-black\/80 {
      background-color: rgba(0, 0, 0, 0.8);
    }

    .bg-white\/10 {
      background-color: rgba(255, 255, 255, 0.1);
    }

    .bg-gradient-to-b {
      background-image: linear-gradient(to bottom, var(--gradient-stops));
    }

    .from-black\/40 {
      --gradient-stops: rgba(0, 0, 0, 0.4), var(--gradient-to);
    }

    .to-black\/70 {
      --gradient-to: rgba(0, 0, 0, 0.548);
    }

    .backdrop-blur-sm {
      backdrop-filter: blur(4px);
    }

    /* ========== Components ========== */
    /* Header & Navigation */
    header {
      position: relative;
    }

    header.hero {
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    nav ul {
      display: flex;
      list-style: none;
    }

    nav a {
      font-size: 1.1em;
    }


    nav a:hover,
    nav a.active {
      color: var(--color-amber-400);
      font-weight: bold;
    }


    .tang-logo {
      font-family: 'Noto Serif SC', serif;
      font-size: 2rem;
      background: linear-gradient(45deg, #FFD700, #FF8C00);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
      letter-spacing: 2px;
      transition: all 0.3s ease;
      line-height: 38px;
    }


    .tang-logo:hover {


      transform: scale(0.96);
    }

    /* Buttons */
    .btn {
      display: inline-block;
      padding: 0.75rem 2rem;
      font-weight: 500;
      border-radius: 0.375rem;
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .btn-primary {
      background-color: var(--color-amber-700);
      color: var(--color-white);
    }

    .btn-primary:hover {
      background-color: var(--color-amber-800);
    }

    .btn-secondary {
      background-color: var(--color-white);
      color: var(--color-amber-700);
    }

    .btn-secondary:hover {
      background-color: var(--color-stone-100);
    }

    .btn-outline {
      background-color: transparent;
      border: 2px solid var(--color-white);
      color: var(--color-white);
    }

    .btn-outline:hover {
      background-color: rgba(255, 255, 255, 0.1);
    }

    /* Cards */
    .card {
      background-color: var(--color-white);
      border-radius: 0.5rem;
      overflow: hidden;
      box-shadow: var(--shadow-md);
      transition: box-shadow 0.3s ease;
    }

    .card:hover {
      box-shadow: var(--shadow-lg);
    }

    .card-img {
      position: relative;
      height: 12rem;
      overflow: hidden;
    }

    .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .card:hover .card-img img {
      transform: scale(1.05);
    }

    .card-body {
      padding: 1.5rem;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-stone-800);
      margin-bottom: 0.5rem;
    }

    .card-text {
      color: var(--color-stone-700);
    }

    /* Timeline */
    .timeline {
      position: relative;
    }

    .timeline::before {
      content: '';
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      height: 100%;
      width: 0.25rem;
      background-color: var(--color-amber-600);
    }

    .timeline-item {
      position: relative;
      margin-bottom: 4rem;
    }

    .timeline-item:nth-child(odd) {
      margin-left: auto;
      margin-right: 50%;
      width: 45%;
    }

    .timeline-item:nth-child(even) {
      margin-right: auto;
      margin-left: 50%;
      width: 45%;
    }

    .timeline-dot {
      position: absolute;
      top: 0;
      width: 1rem;
      height: 1rem;
      border-radius: 50%;
      background-color: var(--color-amber-500);
      border: 4px solid var(--color-amber-700);
      box-shadow: var(--shadow-md);
    }

    .timeline-item:nth-child(odd) .timeline-dot {
      right: -2rem;
    }

    .timeline-item:nth-child(even) .timeline-dot {
      left: -2rem;
    }

    .timeline-content {
      background-color: var(--color-stone-50);
      border-radius: 0.5rem;
      padding: 1.5rem;
      box-shadow: var(--shadow-md);
    }

    .timeline-date {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      margin-bottom: 0.5rem;
      background-color: var(--color-amber-600);
      color: var(--color-white);
      font-size: 0.875rem;
      font-weight: 500;
      border-radius: 9999px;
    }

    .timeline-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-stone-800);
      margin-bottom: 0.5rem;
    }

    .timeline-description {
      color: var(--color-stone-700);
    }

    /* Gallery */
    .gallery-filter {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 3rem;
    }

    .filter-btn {
      padding: 0.5rem 1.5rem;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 500;
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .filter-btn.active {
      background-color: var(--color-amber-600);
      color: var(--color-white);
    }

    .filter-btn:not(.active) {
      background-color: var(--color-stone-100);
      color: var(--color-stone-700);
    }

    .filter-btn:not(.active):hover {
      background-color: var(--color-stone-200);
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(1, minmax(0, 1fr));
      gap: 2rem;
    }

    .gallery-item {
      background-color: var(--color-stone-50);
      border-radius: 0.5rem;
      overflow: hidden;
      box-shadow: var(--shadow-md);
      transition: box-shadow 0.3s ease;
      cursor: pointer;
    }

    .gallery-item:hover {
      box-shadow: var(--shadow-xl);
    }

    .gallery-img {
      position: relative;
      height: 16rem;
    }

    .gallery-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .gallery-info {
      padding: 1.5rem;
    }

    .gallery-category {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      margin-bottom: 0.5rem;
      background-color: var(--color-amber-600);
      color: var(--color-white);
      font-size: 0.75rem;
      font-weight: 500;
      border-radius: 0.25rem;
    }

    .gallery-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-stone-800);
      margin-bottom: 0.25rem;
    }

    .gallery-subtitle {
      font-size: 1.125rem;
      color: var(--color-stone-700);
      margin-bottom: 0.5rem;
    }

    .gallery-meta {
      font-size: 0.875rem;
      color: var(--color-stone-600);
    }

    /* Modal */
    .modal {
      position: fixed;
      inset: 0;
      background-color: rgba(0, 0, 0, 0.8);
      z-index: 50;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 1rem;
    }

    .modal-content {
      background-color: var(--color-white);
      border-radius: 0.5rem;
      max-width: 56rem;
      width: 100%;
      max-height: 90vh;
      overflow: auto;
    }

    .modal-img {
      position: relative;
      height: 50vh;
    }

    .modal-img img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .modal-body {
      padding: 2rem;
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 1rem;
    }

    .modal-close {
      background-color: var(--color-stone-200);
      padding: 0.5rem;
      border-radius: 9999px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .modal-close:hover {
      background-color: var(--color-stone-300);
    }

    .modal-grid {
      display: grid;
      grid-template-columns: repeat(1, minmax(0, 1fr));
      gap: 1.5rem;
      margin-bottom: 1.5rem;
    }

    .modal-label {
      color: var(--color-stone-600);
      font-weight: 500;
      margin-bottom: 0.25rem;
    }

    .modal-value {
      color: var(--color-stone-800);
    }

    /* Footer */
    footer {
      background-color: var(--color-stone-900);
      color: var(--color-white);
      padding: 3rem 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(1, minmax(0, 1fr));
      gap: 2rem;
    }

    .footer-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--color-amber-500);
      margin-bottom: 1rem;
    }

    .footer-text {
      color: var(--color-stone-400);
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.5rem;
    }

    .footer-links a {
      color: var(--color-stone-400);
      transition: color 0.3s ease;
    }

    .footer-links a:hover {
      color: var(--color-amber-400);
    }

    .footer-bottom {
      border-top: 1px solid var(--color-stone-700);
      margin-top: 2rem;
      padding-top: 2rem;
      text-align: center;
      color: var(--color-stone-500);
    }

    /* ========== Responsive Styles ========== */
    @media (min-width: 768px) {
      .md\:flex-row {
        flex-direction: row;
      }

      .md\:flex-row-reverse {
        flex-direction: row-reverse;
      }

      .md\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }

      .md\:w-1\/2 {
        width: 50%;
      }

      .md\:w-1\/3 {
        width: 33.333333%;
      }

      .md\:w-2\/3 {
        width: 66.666667%;
      }

      .md\:ml-\[50\%\] {
        margin-left: 50%;
      }

      .md\:mr-\[50\%\] {
        margin-right: 50%;
      }

      .md\:block {
        display: block;
      }

      .md\:text-6xl {
        font-size: 3.75rem;
      }

      .md\:text-2xl {
        font-size: 1.5rem;
      }

      .md\:order-1 {
        order: 1;
      }

      .md\:order-2 {
        order: 2;
      }

      .gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .modal-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .footer-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }

    @media (min-width: 1024px) {
      .lg\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }

      .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
      }

      .gallery-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
      }
    }

    /* ========== Animations ========== */
    @keyframes fadeIn {
      from {
        opacity: 0;
      }

      to {
        opacity: 1;
      }
    }

    @keyframes slideInUp {
      from {
        transform: translateY(20px);
        opacity: 0;
      }

      to {
        transform: translateY(0);
        opacity: 1;
      }
    }

    .animate-fadeIn {
      animation: fadeIn 0.5s ease-in-out;
    }

    .animate-slideInUp {
      animation: slideInUp 0.5s ease-in-out;
    }

    /* ========== Utility Classes ========== */
    .cursor-pointer {
      cursor: pointer;
    }

    .group:hover .group-hover\:scale-105 {
      transform: scale(1.05);
    }

    .group:hover .group-hover\:scale-110 {
      transform: scale(1.1);
    }

    .group:hover .group-hover\:opacity-100 {
      opacity: 1;
    }

    .group:hover .group-hover\:shadow-xl {
      box-shadow: var(--shadow-xl);
    }

    .hover\:bg-amber-600:hover {
      background-color: var(--color-amber-600);
    }

    .hover\:bg-amber-800:hover {
      background-color: var(--color-amber-800);
    }

    .hover\:bg-stone-100:hover {
      background-color: var(--color-stone-100);
    }

    .hover\:bg-stone-200:hover {
      background-color: var(--color-stone-200);
    }

    .hover\:bg-white\/10:hover {
      background-color: rgba(255, 255, 255, 0.1);
    }

    .hover\:text-amber-400:hover {
      color: var(--color-amber-400);
    }

    .hover\:text-amber-50:hover {
      color: var(--color-amber-50);
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border-width: 0;
    }

    /* ECharts Dashboard Styles */
    .dashboard-container {
      background-color: var(--color-stone-800);
      border-radius: 0.5rem;
      padding: 1.5rem;
      box-shadow: var(--shadow-lg);
    }

    .chart-container {
      background-color: var(--color-stone-900);
      border-radius: 0.375rem;
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }




    /* ========== 留言页面特定样式 ========== */
    .message-form-container {
      position: relative;
      background-color: var(--color-white);
      border-radius: 1rem;
      overflow: hidden;
      box-shadow: var(--shadow-xl);
    }

    .message-form-bg {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('https://via.placeholder.com/1920x1080');
      background-size: cover;
      background-position: center;
      opacity: 0.1;
      z-index: 0;
    }

    .message-form {
      position: relative;
      z-index: 1;
      padding: 3rem;
    }

    .form-group {
      margin-bottom: 1.5rem;
    }

    .form-label {
      display: block;
      margin-bottom: 0.5rem;
      font-weight: 500;
      color: var(--color-stone-800);
    }

    .form-input,
    .form-textarea,
    .form-select {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--color-stone-300);
      border-radius: 0.5rem;
      background-color: var(--color-white);
      color: var(--color-stone-800);
      transition: all 0.3s ease;
    }

    .form-input:focus,
    .form-textarea:focus,
    .form-select:focus {
      outline: none;
      border-color: var(--color-amber-500);
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
    }

    .form-textarea {
      min-height: 150px;
      resize: vertical;
    }

    .form-submit {
      display: inline-block;
      padding: 0.75rem 2rem;
      background-color: var(--color-amber-700);
      color: var(--color-white);
      font-weight: 500;
      border: none;
      border-radius: 0.5rem;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .form-submit:hover {
      background-color: var(--color-amber-800);
      transform: translateY(-2px);
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    }

    .form-submit:active {
      transform: translateY(0);
    }

    /* 装饰元素 */
    .decorative-pattern {
      position: absolute;
      width: 300px;
      height: 300px;
      background-image: url('https://via.placeholder.com/300x300');
      background-size: contain;
      background-repeat: no-repeat;
      opacity: 0.05;
      z-index: 0;
    }

    .pattern-top-right {
      top: -100px;
      right: -100px;
      transform: rotate(45deg);
    }

    .pattern-bottom-left {
      bottom: -100px;
      left: -100px;
      transform: rotate(-45deg);
    }

    /* 浮动元素 */
    .floating-element {
      position: absolute;
      border-radius: 50%;
      background-color: var(--color-amber-500);
      opacity: 0.1;
      z-index: 0;
    }

    .float-1 {
      width: 100px;
      height: 100px;
      top: 10%;
      left: 5%;
      animation: float 8s ease-in-out infinite;
    }

    .float-2 {
      width: 150px;
      height: 150px;
      bottom: 15%;
      right: 10%;
      animation: float 12s ease-in-out infinite;
    }

    .float-3 {
      width: 70px;
      height: 70px;
      top: 40%;
      right: 5%;
      animation: float 10s ease-in-out infinite;
    }

    @keyframes float {
      0% {
        transform: translateY(0) rotate(0deg);
      }

      50% {
        transform: translateY(-20px) rotate(5deg);
      }

      100% {
        transform: translateY(0) rotate(0deg);
      }
    }

    /* 特效样式 */
    .reveal-element {
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-element.revealed {
      opacity: 1;
      transform: translateY(0);
    }

    .stagger-1 {
      transition-delay: 0.1s;
    }

    .stagger-2 {
      transition-delay: 0.2s;
    }

    .stagger-3 {
      transition-delay: 0.3s;
    }

    /* 输入框特效 */
    .input-effect {
      position: relative;
      margin-bottom: 2rem;
    }

    .input-effect input,
    .input-effect textarea {
      width: 100%;
      padding: 0.75rem 1rem;
      border: none;
      border-bottom: 2px solid var(--color-stone-300);
      border-radius: 0;
      background-color: transparent;
      color: var(--color-stone-800);
      transition: all 0.3s ease;
    }

    .input-effect input:focus,
    .input-effect textarea:focus {
      outline: none;
      border-color: var(--color-amber-600);
    }

    .input-effect label {
      position: absolute;
      top: 0.75rem;
      left: 1rem;
      color: var(--color-stone-500);
      pointer-events: none;
      transition: all 0.3s ease;
    }

    .input-effect input:focus~label,
    .input-effect input:not(:placeholder-shown)~label,
    .input-effect textarea:focus~label,
    .input-effect textarea:not(:placeholder-shown)~label {
      top: -1.25rem;
      left: 0;
      font-size: 0.875rem;
      color: var(--color-amber-700);
    }

    /* 按钮波纹效果 */
    .ripple-btn {
      position: relative;
      overflow: hidden;
    }

    .ripple-btn .ripple {
      position: absolute;
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.4);
      transform: scale(0);
      animation: ripple 0.6s linear;
    }

    @keyframes ripple {
      to {
        transform: scale(4);
        opacity: 0;
      }
    }

    /* 成功消息样式 */
    .success-message {
      display: none;
      background-color: rgba(16, 185, 129, 0.1);
      border-left: 4px solid #10b981;
      padding: 1rem;
      border-radius: 0.5rem;
      margin-bottom: 1.5rem;
    }

    .success-message.show {
      display: block;
      animation: fadeIn 0.5s ease-in-out;
    }