/* =========================================================
   站点样式（索引页 + 两个作品页）
   配色与作品保持一致，共 5 色
   ========================================================= */
:root {
  --ink:   #0E1B2A; /* 深墨蓝：底色与结构 */
  --paper: #F3EDE3; /* 米白：文字与留白 */
  --coral: #E4572E; /* 珊瑚橙：暖色重点 */
  --blue:  #3D7EA6; /* 湖蓝：冷色块面 */
  --sand:  #D8C3A5; /* 沙色：低饱和过渡 */
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;             /* 关键：任何页面都不出现滚动条 */
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

/* ---------------- 索引页 ---------------- */
.index-page {
  display: flex;
  align-items: center;
}

.index-main {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(20px, 5vh, 64px) clamp(20px, 6vw, 88px);
  display: flex;
  flex-direction: column;
  max-height: 100%;
}

.eyebrow {
  margin: 0 0 clamp(8px, 1.6vh, 16px);
  font-size: clamp(10px, 0.95vw, 12px);
  letter-spacing: 0.24em;
  color: var(--sand);
}

.index-header h1 {
  margin: 0 0 clamp(8px, 1.8vh, 18px);
  font-size: clamp(28px, 5vw, 58px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.slash {
  color: var(--coral);
  margin: 0 0.16em;
  font-weight: 400;
}

.intro {
  margin: 0 0 clamp(18px, 4vh, 44px);
  max-width: 46ch;
  font-size: clamp(12px, 1.05vw, 14px);
  line-height: 1.8;
  color: rgba(243, 237, 227, 0.6);
}

/* 两张作品卡片 */
.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(12px, 1.8vw, 22px);
}

.work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(6px, 1.2vh, 12px);
  padding: clamp(16px, 2.6vh, 30px) clamp(16px, 2.2vw, 28px);
  border: 1px solid rgba(243, 237, 227, 0.16);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.work-card::after {
  /* 角落的圆形装饰，暗示作品里的圆形元素 */
  content: "";
  position: absolute;
  right: -42px;
  bottom: -42px;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  background: var(--coral);
  opacity: 0.14;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.work-card:nth-child(2)::after {
  background: var(--blue);
}

.work-card:hover {
  border-color: var(--coral);
  transform: translateY(-4px);
  background: rgba(228, 87, 46, 0.06);
}

.work-card:nth-child(2):hover {
  border-color: var(--blue);
  background: rgba(61, 126, 166, 0.08);
}

.work-card:hover::after {
  opacity: 0.22;
  transform: scale(1.08);
}

.work-no {
  font-size: clamp(10px, 0.9vw, 12px);
  letter-spacing: 0.22em;
  color: var(--coral);
}

.work-card:nth-child(2) .work-no { color: var(--blue); }

.work-card h2 {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 600;
}

.work-desc {
  margin: 0;
  font-size: clamp(12px, 1vw, 13.5px);
  line-height: 1.75;
  color: rgba(243, 237, 227, 0.62);
}

.work-meta {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sand);
}

.work-enter {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13px;
  color: var(--paper);
  opacity: 0.75;
}

.work-card:hover .work-enter { opacity: 1; color: var(--coral); }
.work-card:nth-child(2):hover .work-enter { color: var(--blue); }

.index-footer {
  margin-top: clamp(16px, 3.4vh, 36px);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(243, 237, 227, 0.34);
}

/* ---------------- 作品页通用 ---------------- */
.art-page { background: var(--ink); }

.canvas-stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas { display: block; }   /* 消除 canvas 的基线间隙，避免出现 1~2px 溢出 */

/* 静态页画布与深色页底之间加一圈细描边，保证墨蓝竖带的轮廓可读 */
.art-page canvas {
  box-shadow:
    0 0 0 1px rgba(243, 237, 227, 0.22),
    0 24px 80px rgba(0, 0, 0, 0.5);
}

.back-link {
  position: fixed;
  top: clamp(12px, 2vh, 24px);
  left: clamp(12px, 2vw, 28px);
  z-index: 10;
  padding: 7px 13px;
  border: 1px solid rgba(243, 237, 227, 0.22);
  border-radius: 100px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(243, 237, 227, 0.72);
  text-decoration: none;
  background: rgba(14, 27, 42, 0.45);
  backdrop-filter: blur(4px);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.back-link:hover {
  color: var(--paper);
  border-color: var(--coral);
}

/* 动态页的按键提示 */
.hud {
  position: fixed;
  left: 50%;
  bottom: clamp(12px, 2.4vh, 26px);
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 18px;
  padding: 9px 18px;
  border-radius: 100px;
  border: 1px solid rgba(243, 237, 227, 0.14);
  background: rgba(14, 27, 42, 0.42);
  backdrop-filter: blur(6px);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(243, 237, 227, 0.6);
  white-space: nowrap;
  pointer-events: none;
}

.hud b {
  font-weight: 600;
  color: var(--sand);
  margin-right: 4px;
}

/* ---------------- 小屏适配 ---------------- */
@media (max-width: 760px) {
  .work-grid { grid-template-columns: 1fr; }
  .work-card::after { display: none; }
  .hud { gap: 6px 12px; font-size: 10.5px; padding: 8px 14px; }
}

@media (max-height: 620px) {
  .intro { display: none; }
  .index-footer { display: none; }
}