/* ======= 基本背景 ======= */
body {
  margin: 0;
  padding: 0;
  height: 100vh;
  background: linear-gradient(180deg, #0d111a 0%, #151a25 100%);
  overflow: hidden;
  font-family: 'Playfair Display', serif;
  color: #fff;
  position: relative;
}

/* ======= 背景竖文字与数字 ======= */
.background-text {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

/* 雨状竖排文字 */
.rain-text {
  position: absolute;
  font-size: 2.5vw;
  color: rgba(255,255,255,0.08);
  letter-spacing: 0.1em;
  line-height: 1.3;
  text-align: center;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  text-orientation: upright;
  transform: rotate(180deg); /* 让文字竖排由上往下 */
  user-select: none;
}

/* 随机分布几列 */
.rain-text:nth-child(1) { left: 10%; top: -10%; }
.rain-text:nth-child(2) { left: 35%; top: 5%; }
.rain-text:nth-child(3) { left: 60%; top: -15%; }
.rain-text:nth-child(4) { left: 80%; top: 0%; }

/* 背景数字（时间） */
.clock {
  position: absolute;
  font-size: 1.5vw;
  color: rgba(255,255,255,0.15);
  font-weight: 400;
  letter-spacing: 0.1em;
  font-family: 'Montserrat', sans-serif;
  user-select: none;
}

/* 随机分布时间数字 */
.clock:nth-child(5) { top: 20%; left: 15%; }
.clock:nth-child(6) { top: 40%; left: 50%; }
.clock:nth-child(7) { top: 65%; left: 70%; }
.clock:nth-child(8) { top: 10%; left: 80%; }
.clock:nth-child(9) { top: 85%; left: 30%; }

/* ======= 主要诗歌内容 ======= */
.container {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* 光晕层 */
.overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 25%, rgba(255,255,255,0.1), transparent 70%);
  z-index: 1;
}

/* 诗体整体块 */
.poem {
  z-index: 3;
}

/* ======= 立体主标题 ======= */
.title {
  font-size: 5vw;
  font-weight: 900;
  color: #e9ebf2;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  line-height: 1.1;
  text-shadow:
    0px 1px 0px #bbb,
    0px 2px 0px #aaa,
    0px 3px 0px #999,
    0px 4px 0px #777,
    0px 5px 3px rgba(0,0,0,0.5),
    0px 10px 8px rgba(0,0,0,0.4);
  background: linear-gradient(180deg, #ffffff 0%, #cfd4db 40%, #7a808a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 10px 15px rgba(0,0,0,0.5));
  margin: 0;
}

/* 每一行间距 */
.title p {
  margin: 0.4em 0;
}

/* 副标题 */
.subtitle {
  font-style: italic;
  font-size: 1.2vw;
  opacity: 0.8;
  margin-top: 2em;
  color: #cfd5dc;
  letter-spacing: 0.15em;
}

/* 结尾诗句 */
.bottom-line {
  font-size: 1.1vw;
  font-style: italic;
  opacity: 0.7;
  color: #aeb5bc;
  margin-top: 6em;
  letter-spacing: 0.1em;
}

/* ======= 响应式调整 ======= */
@media screen and (max-width: 768px) {
  .title { font-size: 9vw; }
  .subtitle, .bottom-line { font-size: 3vw; }
  .rain-text { font-size: 4vw; }
}