:root {
  --text: #1f2937;
  --muted: #64748b;
  --bg: #fbfbfa;
  --paper: #f6f4f2;
  --m-blue: #e6eef7;
  --m-pink: #f3e7e5;
  --m-green: #e8f0ea;
  --m-apricot: #f8efe2;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, PingFang SC, Microsoft YaHei, sans-serif;
  background:
    linear-gradient(135deg, rgba(140, 170, 160, 0.22) 0%, rgba(248, 204, 198, 0.35) 100%),
    radial-gradient(1200px 800px at 10% 12%, var(--m-green), transparent 70%),
    radial-gradient(1000px 700px at 85% 18%, #f8d5cb, transparent 72%),
    radial-gradient(900px 700px at 18% 82%, var(--m-blue), transparent 70%),
    radial-gradient(800px 700px at 80% 75%, #f0cec9, transparent 70%),
    linear-gradient(180deg, var(--bg) 0%, #ffffff 100%);
}
.header, .main, .footer { position: relative; z-index: 1; }
html::before {
  content: "";
  position: fixed;
  inset: -18% -18% -18% -18%;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(40% 50% at 14% 18%, var(--m-blue), transparent 65%),
    radial-gradient(35% 45% at 86% 22%, #f3cfca, transparent 65%),
    radial-gradient(55% 60% at 22% 82%, var(--m-apricot), transparent 72%),
    radial-gradient(45% 55% at 78% 76%, var(--m-green), transparent 70%);
  filter: blur(48px);
  opacity: 0.35;
  animation: softDrift 48s ease-in-out infinite;
  will-change: transform, opacity;
}
html::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(17,24,39,0.025) 1px, rgba(255,255,255,0) 1px);
  background-size: 3px 3px;
  opacity: 0.45;
}
@keyframes auroraDrift {
  0% { transform: translate3d(-2%, 0, 0) scale(1); }
  50% { transform: translate3d(3%, -1%, 0) scale(1.04); }
  100% { transform: translate3d(-2%, 0, 0) scale(1); }
}
@keyframes auroraFloat {
  0% { transform: rotate(0deg) translate3d(0, 0, 0) scale(1); }
  50% { transform: rotate(180deg) translate3d(1%, -1%, 0) scale(1.02); }
  100% { transform: rotate(360deg) translate3d(0, 0, 0) scale(1); }
}
.header { padding: 18px 16px; }
.brand { max-width: 960px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; position: relative; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-img { width: 36px; height: 36px; border-radius: 8px; object-fit: cover; }
.logo-text { font-size: 22px; font-weight: 800; letter-spacing: 1px; background: linear-gradient(90deg, #64748b, #334155); -webkit-background-clip: text; background-clip: text; color: transparent; }
.header .sub { font-size: 13px; color: #94a3b8; }

.main { max-width: 960px; margin: 0 auto; padding: 24px 16px 40px; }
.menu {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 24px;
}
@media (max-width: 640px) {
  .menu { grid-template-columns: 1fr; }
}
.menu-item {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 16px;
  padding: 16px;
  color: #0f172a;
  text-decoration: none;
  background: linear-gradient(135deg, rgba(255,255,255,0.25), rgba(255,255,255,0.05));
  border: 1px solid rgba(255,255,255,0.45);
  border-right-color: rgba(255,255,255,0.2);
  border-bottom-color: rgba(255,255,255,0.2);
  box-shadow: 
    0 8px 32px rgba(31, 38, 135, 0.1),
    inset 1px 1px 0px rgba(255, 255, 255, 0.5),
    inset -1px -1px 0px rgba(255, 255, 255, 0.1);
  transform: translateZ(0);
}
.menu-item::before { 
  content: ""; 
  position: absolute; 
  top: 0; left: 0; right: 0; height: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 100%);
  opacity: 0.6;
  pointer-events: none;
  border-radius: 16px 16px 0 0;
}
.menu-item::after { 
  content: ""; 
  position: absolute; 
  bottom: 10px; right: 10px; width: 60px; height: 60px;
  background: radial-gradient(circle at center, rgba(255,255,255,0.8) 0%, transparent 70%);
  opacity: 0.3;
  filter: blur(8px);
  pointer-events: none;
}
@keyframes swirl {
  0% { transform: rotate(8deg) scale(1); }
  50% { transform: rotate(188deg) scale(1.04); }
  100% { transform: rotate(368deg) scale(1); }
}
.menu-item { -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.menu-item:hover { 
  transform: translateY(-4px) scale(1.02); 
  box-shadow: 
    0 20px 40px rgba(2,6,23,0.12),
    inset 1px 1px 0px rgba(255, 255, 255, 0.6),
    inset -1px -1px 0px rgba(255, 255, 255, 0.2);
  background: linear-gradient(135deg, rgba(255,255,255,0.35), rgba(255,255,255,0.1));
}
.menu-title { position: relative; font-size: 20px; color: #12202f; font-family: "Noto Serif SC", "Source Han Serif SC", "思源宋体", Songti SC, STSong, serif; letter-spacing: 0.5px; text-shadow: 0 0.8px 0 rgba(255,255,255,0.65), 0 1.2px 2.4px rgba(17,24,39,0.10), 0 0 12px rgba(40,60,80,0.10), 0 0 24px rgba(60,90,120,0.06); -webkit-text-stroke: 0.3px rgba(17,24,39,0.12); }
.menu-sub { position: relative; margin-top: 6px; color: #a0b0c0; font-size: 12px; }
.footer { text-align: center; color: #94a3b8; font-size: 12px; padding: 24px; }
@keyframes shineSlide {
  0% { transform: translateX(-120%) rotate(20deg); opacity: 0; }
  20% { opacity: 1; }
  50% { transform: translateX(120%) rotate(20deg); opacity: 0.85; }
  100% { transform: translateX(180%) rotate(20deg); opacity: 0; }
}
@keyframes softDrift {
  0% { transform: translate3d(-1%, 0, 0); opacity: 0.33; }
  50% { transform: translate3d(1.5%, -0.5%, 0); opacity: 0.38; }
  100% { transform: translate3d(-1%, 0, 0); opacity: 0.33; }
}
.scene-decor { position: fixed; inset: 0; pointer-events: none; z-index: 0; user-select: none; -webkit-user-select: none; }
.corner-decor {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px; /* 可根据实际效果调整大小 */
  height: 420px; /* 必须设置高度 */
  max-width: 50vw; /* 移动端适配，避免过大 */
  opacity: 0.95; /* 提高不透明度，颜色更实 */
  z-index: 1; /* 确保在canvas之上，但在文字之下? 或者作为背景的一部分 */
  transform-origin: top right;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  filter: saturate(1.4) contrast(1.1); /* 增加饱和度和对比度，使红色更深更鲜艳 */
  mix-blend-mode: multiply; /* 尝试正片叠底让红色融入背景并显深，若太暗可去掉 */
  background-size: contain;
  background-repeat: no-repeat;
  background-position: top right;
}
.scene-decor svg { position: absolute; z-index: 1; }
.scene-decor canvas { z-index: 0; }
.scene-decor canvas { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; }