@import url(fonts/clear-sans.css);

/* ============================================================
   七夕·鹊桥会 2048 — 舞台百分比布局（分层素材版）
   构图坐标由 UI底图(1278x2033) 模板匹配得出，任意屏宽等比缩放
   ============================================================ */

html, body {
  margin: 0;
  padding: 0;
  background: #8682c9; /* 与底图底部云色衔接 */
  color: #776e65;
  font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 18px; }

body {
  margin: 0;
  overflow: hidden; }

/* ---------- 开场信件与视频 ---------- */
.game-intro {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  overflow: hidden;
  background: #071326;
  opacity: 1;
  visibility: visible;
  -webkit-transition: opacity 420ms ease, visibility 420ms ease;
  transition: opacity 420ms ease, visibility 420ms ease; }
  .game-intro.is-leaving {
    pointer-events: none;
    opacity: 0;
    visibility: hidden; }

.game-intro-video {
  position: relative;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: #071326;
  object-fit: contain; }

.game-intro-shade {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(2, 12, 34, 0.34);
  pointer-events: none;
  -webkit-transition: opacity 620ms ease;
  transition: opacity 620ms ease; }
  .game-intro.is-opening .game-intro-shade {
    opacity: 0.12; }
  .game-intro.is-video-active .game-intro-shade {
    opacity: 0; }

.game-intro-invitation {
  position: absolute;
  z-index: 4;
  top: 57%;
  left: 50%;
  width: 76%;
  max-width: 340px;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  opacity: 1;
  visibility: visible;
  -webkit-transition: opacity 320ms ease, -webkit-transform 420ms ease,
    visibility 320ms ease;
  transition: opacity 320ms ease, transform 420ms ease, visibility 320ms ease; }
  .game-intro.is-video-active .game-intro-invitation {
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translate(-50%, -50%) scale(1.06);
    transform: translate(-50%, -50%) scale(1.06); }

.intro-letter-trigger {
  position: relative;
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: 276px;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: #fff0bd;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation; }
  .intro-letter-trigger:focus {
    outline: none; }
  .intro-letter-trigger:focus-visible .intro-letter-envelope {
    outline: 2px solid #ffe7a4;
    outline-offset: 7px; }

.intro-letter-scene {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 42px;
  left: 0;
  display: block;
  -webkit-perspective: 760px;
  perspective: 760px; }

.intro-letter-envelope {
  position: absolute;
  z-index: 3;
  top: 25%;
  left: 8%;
  display: block;
  width: 84%;
  aspect-ratio: 1.72;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-animation: intro-letter-float 2.8s ease-in-out infinite;
  animation: intro-letter-float 2.8s ease-in-out infinite;
  -webkit-filter: drop-shadow(0 12px 12px rgba(1, 8, 29, 0.36))
    drop-shadow(0 0 9px rgba(116, 230, 224, 0.24))
    drop-shadow(0 0 20px rgba(255, 219, 133, 0.14));
  filter: drop-shadow(0 12px 12px rgba(1, 8, 29, 0.36))
    drop-shadow(0 0 9px rgba(116, 230, 224, 0.24))
    drop-shadow(0 0 20px rgba(255, 219, 133, 0.14)); }
  .game-intro.is-opening .intro-letter-envelope {
    -webkit-animation: intro-letter-lift 820ms cubic-bezier(0.2, 0.76, 0.25, 1)
      forwards;
    animation: intro-letter-lift 820ms cubic-bezier(0.2, 0.76, 0.25, 1)
      forwards; }

.intro-letter-back,
.intro-letter-sheet,
.intro-letter-front,
.intro-letter-flap-face {
  background-color: #f5efe1;
  background-image: url(../assets/img/intro-letter-paper.webp);
  background-size: 180px 180px; }

.intro-letter-back {
  position: absolute;
  z-index: 1;
  top: 8%;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  box-sizing: border-box;
  border: 1px solid rgba(205, 166, 89, 0.9);
  border-radius: 4px;
  box-shadow: inset 0 0 0 2px rgba(255, 251, 226, 0.72),
    inset 0 -18px 36px rgba(80, 164, 170, 0.08); }

.intro-letter-sheet {
  position: absolute;
  z-index: 2;
  left: 9%;
  bottom: 14%;
  display: block;
  box-sizing: border-box;
  width: 82%;
  height: 72%;
  overflow: hidden;
  border: 1px solid rgba(197, 158, 76, 0.72);
  border-radius: 3px;
  box-shadow: 0 -4px 15px rgba(169, 232, 229, 0.24);
  opacity: 0.42;
  -webkit-transform: translateY(9%) scale(0.98);
  transform: translateY(9%) scale(0.98); }
  .game-intro.is-opening .intro-letter-sheet {
    z-index: 4;
    -webkit-animation: intro-letter-sheet-rise 570ms
      cubic-bezier(0.16, 0.8, 0.24, 1) 300ms forwards;
    animation: intro-letter-sheet-rise 570ms cubic-bezier(0.16, 0.8, 0.24, 1)
      300ms forwards; }

.intro-letter-sheet-moon {
  position: absolute;
  top: 18%;
  left: 50%;
  display: block;
  width: 28px;
  height: 28px;
  margin-left: -14px;
  border-radius: 50%;
  box-shadow: -7px 2px 0 -2px rgba(74, 147, 154, 0.62); }

.intro-letter-sheet-line {
  position: absolute;
  left: 25%;
  display: block;
  width: 50%;
  height: 1px;
  background: rgba(69, 141, 150, 0.34); }
.intro-letter-sheet-line-one { top: 59%; }
.intro-letter-sheet-line-two { top: 72%; width: 36%; left: 32%; }

.intro-letter-front {
  position: absolute;
  z-index: 3;
  top: 8%;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  overflow: hidden;
  -webkit-clip-path: polygon(0 16%, 50% 61%, 100% 16%, 100% 100%, 0 100%);
  clip-path: polygon(0 16%, 50% 61%, 100% 16%, 100% 100%, 0 100%);
  background-image: linear-gradient(108deg,
      transparent 34%,
      rgba(255, 255, 238, 0.12) 42%,
      rgba(211, 255, 249, 0.7) 49%,
      rgba(255, 239, 188, 0.4) 53%,
      transparent 61%),
    url(../assets/img/intro-letter-paper.webp);
  background-size: 270% 100%, 180px 180px;
  background-position: 135% 0, 0 0;
  box-shadow: inset 0 -20px 34px rgba(69, 151, 158, 0.1); }
  .intro-letter-front::before,
  .intro-letter-front::after {
    content: "";
    position: absolute;
    top: 38%;
    display: block;
    width: 58%;
    height: 1px;
    background: rgba(200, 159, 75, 0.74); }
  .intro-letter-front::before {
    left: -6%;
    -webkit-transform: rotate(25deg);
    transform: rotate(25deg); }
  .intro-letter-front::after {
    right: -6%;
    -webkit-transform: rotate(-25deg);
    transform: rotate(-25deg); }

.intro-letter-flap {
  position: absolute;
  z-index: 5;
  top: 8%;
  left: 0;
  display: block;
  width: 100%;
  height: 58%;
  -webkit-transform-origin: 50% 0;
  transform-origin: 50% 0;
  -webkit-transform-style: preserve-3d;
  transform-style: preserve-3d; }
  .game-intro.is-opening .intro-letter-flap {
    -webkit-animation: intro-letter-flap-open 620ms
      cubic-bezier(0.4, 0, 0.16, 1) 100ms forwards;
    animation: intro-letter-flap-open 620ms cubic-bezier(0.4, 0, 0.16, 1)
      100ms forwards; }

.intro-letter-flap-face {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  -webkit-clip-path: polygon(0 0, 100% 0, 50% 100%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden; }
  .intro-letter-flap-front {
    background-image: linear-gradient(108deg,
        transparent 34%,
        rgba(255, 255, 238, 0.1) 43%,
        rgba(211, 255, 249, 0.64) 49%,
        rgba(255, 239, 188, 0.36) 54%,
        transparent 62%),
      url(../assets/img/intro-letter-paper.webp);
    background-size: 270% 100%, 180px 180px;
    background-position: 135% 0, 0 0;
    box-shadow: inset 0 2px 0 rgba(207, 166, 80, 0.82); }
  .intro-letter-flap-front::before,
  .intro-letter-flap-back::before {
    content: "";
    position: absolute;
    top: 8%;
    left: 7%;
    display: block;
    width: 86%;
    height: 78%;
    -webkit-clip-path: polygon(0 0, 100% 0, 50% 100%);
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    box-shadow: inset 0 1px 0 rgba(204, 164, 80, 0.76); }
  .intro-letter-flap-back {
    background-color: #e9f0e9;
    box-shadow: inset 0 0 34px rgba(58, 145, 153, 0.16);
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg); }

.intro-letter-front,
.intro-letter-flap-front {
  -webkit-animation: intro-letter-paper-shimmer 3.1s ease-in-out infinite;
  animation: intro-letter-paper-shimmer 3.1s ease-in-out infinite; }

.intro-letter-seam-light {
  position: absolute;
  z-index: 6;
  top: 8%;
  right: 0;
  bottom: 0;
  left: 0;
  display: block;
  pointer-events: none;
  -webkit-clip-path: inset(-8% 0 -18% 0);
  clip-path: inset(-8% 0 -18% 0);
  -webkit-animation: intro-letter-seam-breathe 2.35s ease-in-out infinite;
  animation: intro-letter-seam-breathe 2.35s ease-in-out infinite; }
  .intro-letter-seam-light::before,
  .intro-letter-seam-light::after {
    content: "";
    position: absolute;
    top: 37.5%;
    display: block;
    width: 55%;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(90deg,
      rgba(75, 211, 211, 0.02) 0%,
      rgba(91, 220, 218, 0.07) 18%,
      rgba(105, 230, 226, 0.22) 34%,
      rgba(132, 241, 235, 0.48) 58%,
      rgba(183, 251, 244, 0.7) 80%,
      rgba(237, 255, 251, 0.9) 100%);
    box-shadow: 0 4px 7px 1px rgba(174, 251, 244, 0.54),
      0 14px 15px 4px rgba(82, 226, 221, 0.3),
      0 27px 22px 5px rgba(57, 201, 205, 0.14);
    -webkit-filter: blur(1.5px);
    filter: blur(1.5px); }
  .intro-letter-seam-light::before {
    left: 1%;
    -webkit-transform: rotate(25deg);
    transform: rotate(25deg); }
  .intro-letter-seam-light::after {
    right: 1%;
    background: linear-gradient(90deg,
      rgba(237, 255, 251, 0.9) 0%,
      rgba(183, 251, 244, 0.7) 20%,
      rgba(132, 241, 235, 0.48) 42%,
      rgba(105, 230, 226, 0.22) 66%,
      rgba(91, 220, 218, 0.07) 82%,
      rgba(75, 211, 211, 0.02) 100%);
    -webkit-transform: rotate(-25deg);
    transform: rotate(-25deg); }
  .game-intro.is-opening .intro-letter-seam-light {
    -webkit-animation: intro-letter-seam-open 500ms ease-out forwards;
    animation: intro-letter-seam-open 500ms ease-out forwards; }

.intro-letter-seal {
  position: absolute;
  z-index: 7;
  top: 55%;
  left: 50%;
  display: block;
  box-sizing: border-box;
  width: 56px;
  height: 70px;
  margin: -24px 0 0 -28px;
  background: url(../assets/img/intro-letter-seal.webp?v=2) no-repeat center;
  background-size: contain;
  -webkit-filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34))
    drop-shadow(0 0 7px rgba(113, 230, 222, 0.42));
  filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34))
    drop-shadow(0 0 7px rgba(113, 230, 222, 0.42));
  -webkit-animation: intro-letter-seal-pulse 1.55s ease-in-out infinite;
  animation: intro-letter-seal-pulse 1.55s ease-in-out infinite; }
  .game-intro.is-opening .intro-letter-seal {
    -webkit-animation: intro-letter-seal-open 430ms ease-out forwards;
    animation: intro-letter-seal-open 430ms ease-out forwards; }

.intro-letter-glow {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  display: block;
  width: 176%;
  height: 146%;
  border-radius: 50%;
  background:
    radial-gradient(ellipse at 50% 51%, rgba(255, 248, 218, 0.7) 0%, rgba(255, 230, 156, 0.34) 28%, rgba(255, 220, 131, 0.11) 50%, transparent 70%),
    radial-gradient(ellipse at 50% 53%, rgba(118, 235, 228, 0.46) 0%, rgba(102, 225, 221, 0.25) 42%, rgba(86, 210, 211, 0.08) 60%, transparent 76%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-filter: blur(14px);
  filter: blur(14px);
  -webkit-animation: intro-letter-glow-breathe 2.4s ease-in-out infinite;
  animation: intro-letter-glow-breathe 2.4s ease-in-out infinite; }
  .game-intro.is-opening .intro-letter-glow {
    -webkit-animation: intro-letter-glow-open 760ms ease-out forwards;
    animation: intro-letter-glow-open 760ms ease-out forwards; }

.intro-letter-feather {
  position: absolute;
  z-index: 5;
  display: block;
  width: 34px;
  height: 9px;
  border-top: 2px solid rgba(255, 239, 184, 0.78);
  border-radius: 50%;
  opacity: 0.62;
  -webkit-filter: drop-shadow(0 0 5px rgba(255, 227, 157, 0.7));
  filter: drop-shadow(0 0 5px rgba(255, 227, 157, 0.7));
  -webkit-animation: intro-letter-feather-idle 2.7s ease-in-out infinite;
  animation: intro-letter-feather-idle 2.7s ease-in-out infinite; }
  .intro-letter-feather::before,
  .intro-letter-feather::after {
    content: "";
    position: absolute;
    top: -1px;
    display: block;
    width: 14px;
    height: 6px;
    border-top: 1px solid rgba(255, 239, 184, 0.66); }
  .intro-letter-feather::before { left: 5px; -webkit-transform: rotate(24deg); transform: rotate(24deg); }
  .intro-letter-feather::after { right: 4px; -webkit-transform: rotate(-25deg); transform: rotate(-25deg); }
.intro-letter-feather-one { top: 31%; right: 7%; -webkit-transform: rotate(-30deg); transform: rotate(-30deg); }
.intro-letter-feather-two { bottom: 20%; left: 6%; -webkit-transform: rotate(150deg); transform: rotate(150deg); -webkit-animation-delay: 720ms; animation-delay: 720ms; }
  .game-intro.is-opening .intro-letter-feather-one {
    -webkit-animation: intro-letter-feather-right 720ms ease-out forwards;
    animation: intro-letter-feather-right 720ms ease-out forwards; }
  .game-intro.is-opening .intro-letter-feather-two {
    -webkit-animation: intro-letter-feather-left 720ms ease-out forwards;
    animation: intro-letter-feather-left 720ms ease-out forwards; }

.intro-letter-spark {
  position: absolute;
  z-index: 6;
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #ffe6a5;
  box-shadow: 0 0 8px 3px rgba(255, 224, 145, 0.72),
    0 0 15px 5px rgba(143, 239, 231, 0.26);
  -webkit-animation: intro-letter-twinkle 1.45s ease-in-out infinite;
  animation: intro-letter-twinkle 1.45s ease-in-out infinite; }
  .intro-letter-spark::before,
  .intro-letter-spark::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    display: block;
    background: rgba(255, 244, 200, 0.78);
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%); }
  .intro-letter-spark::before { width: 13px; height: 1px; }
  .intro-letter-spark::after { width: 1px; height: 13px; }
.intro-letter-spark-one { top: 24%; left: 18%; }
.intro-letter-spark-two { top: 35%; right: 11%; -webkit-animation-delay: 280ms; animation-delay: 280ms; }
.intro-letter-spark-three { top: 58%; left: 8%; -webkit-animation-delay: 610ms; animation-delay: 610ms; }
.intro-letter-spark-four { bottom: 18%; right: 18%; -webkit-animation-delay: 850ms; animation-delay: 850ms; }
.intro-letter-spark-five { top: 13%; right: 30%; -webkit-animation-delay: 1.1s; animation-delay: 1.1s; }
.intro-letter-spark-six { bottom: 13%; left: 31%; -webkit-animation-delay: 1.4s; animation-delay: 1.4s; }
.intro-letter-spark-seven { top: 8%; left: 7%; -webkit-animation-delay: 160ms; animation-delay: 160ms; -webkit-animation-duration: 1.8s; animation-duration: 1.8s; }
.intro-letter-spark-eight { top: 18%; right: 3%; -webkit-animation-delay: 470ms; animation-delay: 470ms; -webkit-animation-duration: 1.7s; animation-duration: 1.7s; }
.intro-letter-spark-nine { right: 7%; bottom: 8%; -webkit-animation-delay: 960ms; animation-delay: 960ms; -webkit-animation-duration: 1.9s; animation-duration: 1.9s; }
.intro-letter-spark-ten { bottom: 29%; left: 2%; -webkit-animation-delay: 1.25s; animation-delay: 1.25s; -webkit-animation-duration: 2.05s; animation-duration: 2.05s; }
  .intro-letter-spark-cyan {
    background: #dffefa;
    box-shadow: 0 0 8px 3px rgba(174, 251, 244, 0.75),
      0 0 16px 6px rgba(80, 222, 218, 0.3); }
  .intro-letter-spark-cyan::before,
  .intro-letter-spark-cyan::after {
    background: rgba(222, 255, 251, 0.84); }
  .intro-letter-spark-soft {
    width: 3px;
    height: 3px; }
  .intro-letter-spark-soft::before { width: 8px; }
  .intro-letter-spark-soft::after { height: 8px; }
  .game-intro.is-opening .intro-letter-spark {
    -webkit-animation: intro-letter-spark-open 700ms ease-out forwards;
    animation: intro-letter-spark-open 700ms ease-out forwards; }

.intro-letter-label {
  position: absolute;
  z-index: 12;
  bottom: -2px;
  left: 50%;
  display: block;
  box-sizing: border-box;
  width: max-content;
  min-width: 198px;
  height: 38px;
  padding: 0 13px;
  border: 1px solid rgba(238, 204, 125, 0.58);
  border-radius: 4px;
  background: rgba(3, 24, 44, 0.82);
  box-shadow: 0 5px 18px rgba(0, 8, 25, 0.46),
    inset 0 0 16px rgba(102, 218, 208, 0.11);
  color: #ffe7aa;
  font: 22px/36px "STSong", "Songti SC", "SimSun", serif;
  letter-spacing: 0;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.62),
    0 0 12px rgba(255, 218, 132, 0.42);
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  -webkit-transition: opacity 240ms ease, -webkit-transform 240ms ease;
  transition: opacity 240ms ease, transform 240ms ease; }
  .intro-letter-label::before,
  .intro-letter-label::after {
    content: "";
    display: inline-block;
    width: 30px;
    height: 1px;
    margin: 0 12px 6px;
    background: rgba(255, 222, 147, 0.62); }
  .game-intro.is-opening .intro-letter-label {
    opacity: 0;
    -webkit-transform: translate(-50%, 5px);
    transform: translate(-50%, 5px);
    -webkit-transition-delay: 140ms;
    transition-delay: 140ms; }

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

@-webkit-keyframes intro-letter-float {
  0%, 100% { -webkit-transform: translateY(0); transform: translateY(0); }
  50% { -webkit-transform: translateY(-5px); transform: translateY(-5px); }
}
@keyframes intro-letter-float {
  0%, 100% { -webkit-transform: translateY(0); transform: translateY(0); }
  50% { -webkit-transform: translateY(-5px); transform: translateY(-5px); }
}
@-webkit-keyframes intro-letter-lift {
  0% { -webkit-transform: translateY(0) scale(1); transform: translateY(0) scale(1); }
  100% { -webkit-transform: translateY(-8px) scale(1.025); transform: translateY(-8px) scale(1.025); }
}
@keyframes intro-letter-lift {
  0% { -webkit-transform: translateY(0) scale(1); transform: translateY(0) scale(1); }
  100% { -webkit-transform: translateY(-8px) scale(1.025); transform: translateY(-8px) scale(1.025); }
}
@-webkit-keyframes intro-letter-flap-open {
  0%, 48% { z-index: 5; }
  49%, 100% { z-index: 1; }
  100% { -webkit-transform: rotateX(180deg); transform: rotateX(180deg); }
}
@keyframes intro-letter-flap-open {
  0%, 48% { z-index: 5; }
  49%, 100% { z-index: 1; }
  100% { -webkit-transform: rotateX(180deg); transform: rotateX(180deg); }
}
@-webkit-keyframes intro-letter-sheet-rise {
  0% { opacity: 0.42; -webkit-transform: translateY(9%) scale(0.98); transform: translateY(9%) scale(0.98); }
  100% { opacity: 1; -webkit-transform: translateY(-44%) scale(1); transform: translateY(-44%) scale(1); }
}
@keyframes intro-letter-sheet-rise {
  0% { opacity: 0.42; -webkit-transform: translateY(9%) scale(0.98); transform: translateY(9%) scale(0.98); }
  100% { opacity: 1; -webkit-transform: translateY(-44%) scale(1); transform: translateY(-44%) scale(1); }
}
@-webkit-keyframes intro-letter-paper-shimmer {
  0%, 44% { background-position: 135% 0, 0 0; }
  76%, 100% { background-position: -38% 0, 0 0; }
}
@keyframes intro-letter-paper-shimmer {
  0%, 44% { background-position: 135% 0, 0 0; }
  76%, 100% { background-position: -38% 0, 0 0; }
}
@-webkit-keyframes intro-letter-seam-breathe {
  0%, 100% { opacity: 0.64; -webkit-filter: brightness(0.96); filter: brightness(0.96); }
  50% { opacity: 0.94; -webkit-filter: brightness(1.14); filter: brightness(1.14); }
}
@keyframes intro-letter-seam-breathe {
  0%, 100% { opacity: 0.64; -webkit-filter: brightness(0.96); filter: brightness(0.96); }
  50% { opacity: 0.94; -webkit-filter: brightness(1.14); filter: brightness(1.14); }
}
@-webkit-keyframes intro-letter-seam-open {
  0% { opacity: 0.84; -webkit-filter: brightness(1); filter: brightness(1); }
  46% { opacity: 1; -webkit-filter: brightness(1.35); filter: brightness(1.35); }
  100% { opacity: 0; -webkit-filter: brightness(1.5) blur(5px); filter: brightness(1.5) blur(5px); }
}
@keyframes intro-letter-seam-open {
  0% { opacity: 0.84; -webkit-filter: brightness(1); filter: brightness(1); }
  46% { opacity: 1; -webkit-filter: brightness(1.35); filter: brightness(1.35); }
  100% { opacity: 0; -webkit-filter: brightness(1.5) blur(5px); filter: brightness(1.5) blur(5px); }
}
@-webkit-keyframes intro-letter-seal-pulse {
  0%, 100% { -webkit-filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 6px rgba(113, 230, 222, 0.34)); filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 6px rgba(113, 230, 222, 0.34)); -webkit-transform: scale(0.98); transform: scale(0.98); }
  50% { -webkit-filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 10px rgba(113, 230, 222, 0.58)); filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 10px rgba(113, 230, 222, 0.58)); -webkit-transform: scale(1.04); transform: scale(1.04); }
}
@keyframes intro-letter-seal-pulse {
  0%, 100% { -webkit-filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 6px rgba(113, 230, 222, 0.34)); filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 6px rgba(113, 230, 222, 0.34)); -webkit-transform: scale(0.98); transform: scale(0.98); }
  50% { -webkit-filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 10px rgba(113, 230, 222, 0.58)); filter: drop-shadow(0 2px 2px rgba(3, 42, 48, 0.34)) drop-shadow(0 0 10px rgba(113, 230, 222, 0.58)); -webkit-transform: scale(1.04); transform: scale(1.04); }
}
@-webkit-keyframes intro-letter-seal-open {
  0% { opacity: 1; -webkit-transform: scale(1); transform: scale(1); }
  45% { opacity: 1; -webkit-transform: scale(1.24); transform: scale(1.24); }
  100% { opacity: 0; -webkit-transform: scale(1.5); transform: scale(1.5); }
}
@keyframes intro-letter-seal-open {
  0% { opacity: 1; -webkit-transform: scale(1); transform: scale(1); }
  45% { opacity: 1; -webkit-transform: scale(1.24); transform: scale(1.24); }
  100% { opacity: 0; -webkit-transform: scale(1.5); transform: scale(1.5); }
}
@-webkit-keyframes intro-letter-glow-breathe {
  0%, 100% { opacity: 0.7; -webkit-transform: translate(-50%, -50%) scale(0.95); transform: translate(-50%, -50%) scale(0.95); }
  50% { opacity: 1; -webkit-transform: translate(-50%, -50%) scale(1.04); transform: translate(-50%, -50%) scale(1.04); }
}
@keyframes intro-letter-glow-breathe {
  0%, 100% { opacity: 0.7; -webkit-transform: translate(-50%, -50%) scale(0.95); transform: translate(-50%, -50%) scale(0.95); }
  50% { opacity: 1; -webkit-transform: translate(-50%, -50%) scale(1.04); transform: translate(-50%, -50%) scale(1.04); }
}
@-webkit-keyframes intro-letter-glow-open {
  0% { opacity: 0.72; -webkit-transform: translate(-50%, -50%) scale(1); transform: translate(-50%, -50%) scale(1); }
  55% { opacity: 1; -webkit-transform: translate(-50%, -50%) scale(1.36); transform: translate(-50%, -50%) scale(1.36); }
  100% { opacity: 0.2; -webkit-transform: translate(-50%, -50%) scale(1.7); transform: translate(-50%, -50%) scale(1.7); }
}
@keyframes intro-letter-glow-open {
  0% { opacity: 0.72; -webkit-transform: translate(-50%, -50%) scale(1); transform: translate(-50%, -50%) scale(1); }
  55% { opacity: 1; -webkit-transform: translate(-50%, -50%) scale(1.36); transform: translate(-50%, -50%) scale(1.36); }
  100% { opacity: 0.2; -webkit-transform: translate(-50%, -50%) scale(1.7); transform: translate(-50%, -50%) scale(1.7); }
}
@-webkit-keyframes intro-letter-feather-idle {
  0%, 100% { opacity: 0.46; margin-top: 3px; }
  50% { opacity: 0.94; margin-top: -6px; }
}
@keyframes intro-letter-feather-idle {
  0%, 100% { opacity: 0.46; margin-top: 3px; }
  50% { opacity: 0.94; margin-top: -6px; }
}
@-webkit-keyframes intro-letter-feather-right {
  to { opacity: 0; -webkit-transform: translate(35px, -22px) rotate(-10deg) scale(1.25); transform: translate(35px, -22px) rotate(-10deg) scale(1.25); }
}
@keyframes intro-letter-feather-right {
  to { opacity: 0; -webkit-transform: translate(35px, -22px) rotate(-10deg) scale(1.25); transform: translate(35px, -22px) rotate(-10deg) scale(1.25); }
}
@-webkit-keyframes intro-letter-feather-left {
  to { opacity: 0; -webkit-transform: translate(-34px, 18px) rotate(175deg) scale(1.2); transform: translate(-34px, 18px) rotate(175deg) scale(1.2); }
}
@keyframes intro-letter-feather-left {
  to { opacity: 0; -webkit-transform: translate(-34px, 18px) rotate(175deg) scale(1.2); transform: translate(-34px, 18px) rotate(175deg) scale(1.2); }
}
@-webkit-keyframes intro-letter-twinkle {
  0%, 100% { opacity: 0.18; -webkit-transform: translateY(3px) scale(0.58); transform: translateY(3px) scale(0.58); }
  50% { opacity: 1; -webkit-transform: translateY(-6px) scale(1.28); transform: translateY(-6px) scale(1.28); }
}
@keyframes intro-letter-twinkle {
  0%, 100% { opacity: 0.18; -webkit-transform: translateY(3px) scale(0.58); transform: translateY(3px) scale(0.58); }
  50% { opacity: 1; -webkit-transform: translateY(-6px) scale(1.28); transform: translateY(-6px) scale(1.28); }
}
@-webkit-keyframes intro-letter-spark-open {
  0% { opacity: 0.9; -webkit-transform: scale(0.8); transform: scale(0.8); }
  100% { opacity: 0; -webkit-transform: translateY(-24px) scale(1.7); transform: translateY(-24px) scale(1.7); }
}
@keyframes intro-letter-spark-open {
  0% { opacity: 0.9; -webkit-transform: scale(0.8); transform: scale(0.8); }
  100% { opacity: 0; -webkit-transform: translateY(-24px) scale(1.7); transform: translateY(-24px) scale(1.7); }
}

.game-intro-actions {
  position: absolute;
  z-index: 10;
  top: calc(12px + env(safe-area-inset-top));
  right: calc(12px + env(safe-area-inset-right));
  display: -webkit-flex;
  display: flex;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  -webkit-transform: translateY(-5px);
  transform: translateY(-5px);
  -webkit-transition: opacity 240ms ease, -webkit-transform 240ms ease,
    visibility 240ms ease;
  transition: opacity 240ms ease, transform 240ms ease, visibility 240ms ease; }
  .game-intro.is-video-active .game-intro-actions {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    -webkit-transform: translateY(0);
    transform: translateY(0); }

.game-intro-control {
  box-sizing: border-box;
  min-height: 34px;
  margin: 0;
  padding: 0 12px;
  border: 1px solid rgba(255, 236, 185, 0.78);
  border-radius: 6px;
  background: rgba(12, 23, 50, 0.74);
  color: #fff1c8;
  font: 14px/32px "Clear Sans", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55); }
  .game-intro-control:focus {
    outline: 2px solid #ffe39b;
    outline-offset: 2px; }

.game-intro-progress {
  position: absolute;
  z-index: 10;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.18);
  opacity: 0;
  -webkit-transition: opacity 200ms ease;
  transition: opacity 200ms ease; }
  .game-intro.is-video-active .game-intro-progress {
    opacity: 1; }
  .game-intro-progress span {
    display: block;
    width: 0;
    height: 100%;
    background: #ffe39b;
    -webkit-transition: width 80ms linear;
    transition: width 80ms linear; }

@media screen and (orientation: portrait) {
  .game-intro-video {
    object-fit: cover; } }

@media screen and (orientation: landscape) and (max-height: 560px) {
  .game-intro-invitation {
    top: 52%;
    max-width: 260px; }
  .intro-letter-trigger {
    height: 210px; }
  .intro-letter-scene {
    bottom: 34px; }
  .intro-letter-label {
    bottom: 0;
    min-width: 168px;
    height: 30px;
    padding: 0 9px;
    font-size: 18px;
    line-height: 28px; }
  .intro-letter-label::before,
  .intro-letter-label::after {
    width: 22px;
    margin-right: 9px;
    margin-left: 9px; }
  }

@media (prefers-reduced-motion: reduce) {
  .game-intro {
    -webkit-transition-duration: 1ms;
    transition-duration: 1ms; }
  .intro-letter-envelope,
  .intro-letter-seal,
  .intro-letter-seam-light,
  .intro-letter-glow,
  .intro-letter-feather,
  .intro-letter-front,
  .intro-letter-flap-front,
  .intro-letter-spark {
    -webkit-animation: none;
    animation: none; }
  .game-intro.is-opening .intro-letter-flap {
    -webkit-animation-duration: 1ms;
    animation-duration: 1ms;
    -webkit-animation-delay: 0ms;
    animation-delay: 0ms; }
  .game-intro.is-opening .intro-letter-sheet {
    -webkit-animation-duration: 1ms;
    animation-duration: 1ms;
    -webkit-animation-delay: 0ms;
    animation-delay: 0ms; } }

/* ---------- 舞台 ---------- */
.stage {
  position: relative;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding-top: 159.08%; /* 2033/1278 */
  background: #1a2350 url(../assets/bg/page-bg.jpg) no-repeat top center;
  -webkit-background-size: 100% 100%;
  background-size: 100% 100%;
  overflow: hidden; }

.audio-settings-toggle {
  position: absolute;
  z-index: 20;
  top: 6.5%;
  left: 18.5%;
  box-sizing: border-box;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 1px solid rgba(255, 235, 174, 0.75);
  border-radius: 6px;
  background: rgba(34, 29, 82, 0.72);
  color: #fff3c7;
  font: 13px/1 Arial, sans-serif;
  text-align: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  text-shadow: 0 1px 2px rgba(20, 12, 55, 0.8); }
  .audio-settings-toggle:hover {
    background: rgba(51, 42, 112, 0.88); }
  .audio-settings-toggle:focus,
  .audio-volume-slider:focus,
  .music-track-button:focus {
    outline: 2px solid #ffe49a;
    outline-offset: 2px; }

.audio-settings-panel {
  position: absolute;
  z-index: 30;
  top: calc(6.5% + 29px);
  left: 18.5%;
  box-sizing: border-box;
  width: 220px;
  max-width: 92%;
  padding: 12px;
  border: 1px solid rgba(255, 224, 143, 0.8);
  border-radius: 6px;
  background: rgba(29, 25, 73, 0.96);
  box-shadow: 0 4px 14px rgba(12, 8, 45, 0.38); }
  .audio-settings-panel[hidden] {
    display: none; }

.audio-settings-panel h2 {
  margin: 0 0 12px;
  color: #ffe8a6;
  font-size: 15px;
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: 0; }

.audio-volume-control {
  margin-bottom: 12px; }
  .audio-volume-control label {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    margin-bottom: 5px;
    color: #f3edff;
    font-size: 13px;
    line-height: 1.2; }
  .audio-volume-control output {
    color: #ffe187;
    font-size: 12px;
    font-weight: bold; }

.audio-volume-slider {
  display: block;
  width: 100%;
  height: 18px;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none; }
  .audio-volume-slider::-webkit-slider-runnable-track {
    height: 5px;
    border-radius: 3px;
    background: rgba(235, 226, 255, 0.28); }
  .audio-volume-slider::-webkit-slider-thumb {
    width: 16px;
    height: 16px;
    margin-top: -5.5px;
    border: 2px solid #fff0b9;
    border-radius: 50%;
    background: #c65f7d;
    -webkit-appearance: none;
    appearance: none; }
  .audio-volume-slider::-moz-range-track {
    height: 5px;
    border: 0;
    border-radius: 3px;
    background: rgba(235, 226, 255, 0.28); }
  .audio-volume-slider::-moz-range-thumb {
    width: 13px;
    height: 13px;
    border: 2px solid #fff0b9;
    border-radius: 50%;
    background: #c65f7d; }

.audio-settings-section-title {
  margin: 2px 0 5px;
  color: #ffe8a6;
  font-size: 12px;
  font-weight: bold;
  line-height: 1.2; }

.music-track-list {
  margin: 0 -5px -5px; }

.music-track-button {
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: 34px;
  margin: 0;
  padding: 0 9px 0 30px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #f3edff;
  font: 14px/34px "Clear Sans", "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
  text-align: left;
  cursor: pointer; }
  .music-track-button:hover {
    background: rgba(255, 230, 158, 0.12); }
  .music-track-button[aria-checked="true"] {
    position: relative;
    background: rgba(198, 95, 125, 0.34);
    color: #fff0b9;
    font-weight: bold; }
  .music-track-button[aria-checked="true"]::before {
    position: absolute;
    left: 10px;
    top: 0;
    content: "✓";
    color: #ffe187; }

/* ---------- 分层元素 ---------- */
.lyr {
  position: absolute;
  z-index: 4; }
  .lyr img {
    display: block;
    width: 100%;
    height: auto;
    pointer-events: none; }

.lyr-title  { left: 14.55%; top: 4.72%;  width: 59.94%; }
.lyr-ribbon { left: 34.34%; top: 77.91%; width: 33.26%; z-index: 4; }

/* ---------- 分数绶带 ---------- */
.pill {
  z-index: 4; }
.pill-best  { left: 66.90%; top: 8.26%;  width: 16.12%; }
.pill-score { left: 66.59%; top: 14.02%; width: 16.82%; }

.pill span {
  position: absolute;
  left: 4%;
  width: 92%;
  top: 54%;
  height: 40%;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  text-align: center;
  font-weight: bold;
  font-size: 0.72em;
  color: #ffd76e;
  text-shadow: 0 1px 3px rgba(40, 25, 90, 0.9);
  overflow: hidden; }

/* 加分动画 */
@-webkit-keyframes move-up {
  0% { top: 0; opacity: 1; }
  100% { top: -140%; opacity: 0; } }
@-moz-keyframes move-up {
  0% { top: 0; opacity: 1; }
  100% { top: -140%; opacity: 0; } }
@keyframes move-up {
  0% { top: 0; opacity: 1; }
  100% { top: -140%; opacity: 0; } }

.score-container .score-addition {
  position: absolute;
  right: 0;
  top: 0;
  color: #ffe9a8;
  font-size: 1.1em;
  font-weight: bold;
  z-index: 100;
  -webkit-animation: move-up 600ms ease-in;
  -moz-animation: move-up 600ms ease-in;
  animation: move-up 600ms ease-in;
  -webkit-animation-fill-mode: both;
  -moz-animation-fill-mode: both;
  animation-fill-mode: both; }

/* ---------- 棋盘 ---------- */
.board-wrap {
  left: 14.24%;
  top: 20.66%;
  width: 68.39%;
  z-index: 2; }
  .board-wrap.hammer-on {
    z-index: 5; /* 选择模式时压过标题图，提示条可见 */ }
  .board-wrap .board-grid {
    display: block;
    width: 100%;
    height: auto; }

.game-container {
  position: absolute;
  left: 0; top: 0; right: 0; bottom: 0;
  cursor: default;
  -webkit-touch-callout: none;
  -ms-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -ms-touch-action: none;
  touch-action: none; }

@-webkit-keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } }
@-moz-keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } }
@keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } }

.game-container .game-message {
  display: none;
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(26, 22, 74, 0.78);
  border-radius: 3%;
  z-index: 100;
  text-align: center;
  -webkit-animation: fade-in 800ms ease 1200ms;
  -moz-animation: fade-in 800ms ease 1200ms;
  animation: fade-in 800ms ease 1200ms;
  -webkit-animation-fill-mode: both;
  -moz-animation-fill-mode: both;
  animation-fill-mode: both; }
  .game-container .game-message p {
    font-size: 1.5em;
    font-weight: bold;
    color: #ffd76e;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
    margin: 0;
    margin-top: 36%; }
  .game-container .game-message .lower {
    display: block;
    margin-top: 12%; }
  .game-container .game-message a {
    display: inline-block;
    background: #7b639e;
    border-radius: 4px;
    padding: 0 0.9em;
    text-decoration: none;
    color: #f9f6f2;
    font-size: 0.62em;
    height: 2.4em;
    line-height: 2.5em;
    margin-left: 0.5em; }
    .game-container .game-message a.keep-playing-button {
      display: none; }
  .game-container .game-message.game-won {
    background: rgba(190, 148, 40, 0.55); }
    .game-container .game-message.game-won a.keep-playing-button {
      display: inline-block; }
  .game-container .game-message.game-won, .game-container .game-message.game-over {
    display: block; }

/* ---------- 方块层 ---------- */
.tile-container {
  position: absolute;
  z-index: 2;
  left: 0; top: 0; right: 0; bottom: 0; }

/* 方块基准：新棋盘700x719，首格(31,35) 格154x154 横距161 纵距162/163/162 */
.tile {
  position: absolute;
  left: 4.429%;
  top: 4.868%;
  width: 22.000%;
  height: 21.419%;
  -webkit-transition: 100ms ease-in-out;
  -moz-transition: 100ms ease-in-out;
  transition: 100ms ease-in-out;
  -webkit-transition-property: -webkit-transform;
  -moz-transition-property: -moz-transform;
  transition-property: transform; }

/* 位置：translate 百分比相对自身宽高，行偏移按指定值，第4列额外右移0.5% */
.tile.tile-position-1-1 { -webkit-transform: translate(0.3%, 1.383%); -moz-transform: translate(0.3%, 1.383%); -ms-transform: translate(0.3%, 1.383%); transform: translate(0.3%, 1.383%); }
.tile.tile-position-1-2 { -webkit-transform: translate(0.3%, 106.579%); -moz-transform: translate(0.3%, 106.579%); -ms-transform: translate(0.3%, 106.579%); transform: translate(0.3%, 106.579%); }
.tile.tile-position-1-3 { -webkit-transform: translate(0.3%, 211.039%); -moz-transform: translate(0.3%, 211.039%); -ms-transform: translate(0.3%, 211.039%); transform: translate(0.3%, 211.039%); }
.tile.tile-position-1-4 { -webkit-transform: translate(0.3%, 317.620%); -moz-transform: translate(0.3%, 317.620%); -ms-transform: translate(0.3%, 317.620%); transform: translate(0.3%, 317.620%); }
.tile.tile-position-2-1 { -webkit-transform: translate(104.845%, 1.383%); -moz-transform: translate(104.845%, 1.383%); -ms-transform: translate(104.845%, 1.383%); transform: translate(104.845%, 1.383%); }
.tile.tile-position-2-2 { -webkit-transform: translate(104.845%, 106.579%); -moz-transform: translate(104.845%, 106.579%); -ms-transform: translate(104.845%, 106.579%); transform: translate(104.845%, 106.579%); }
.tile.tile-position-2-3 { -webkit-transform: translate(104.845%, 211.039%); -moz-transform: translate(104.845%, 211.039%); -ms-transform: translate(104.845%, 211.039%); transform: translate(104.845%, 211.039%); }
.tile.tile-position-2-4 { -webkit-transform: translate(104.845%, 317.620%); -moz-transform: translate(104.845%, 317.620%); -ms-transform: translate(104.845%, 317.620%); transform: translate(104.845%, 317.620%); }
.tile.tile-position-3-1 { -webkit-transform: translate(209.391%, 1.383%); -moz-transform: translate(209.391%, 1.383%); -ms-transform: translate(209.391%, 1.383%); transform: translate(209.391%, 1.383%); }
.tile.tile-position-3-2 { -webkit-transform: translate(209.391%, 106.579%); -moz-transform: translate(209.391%, 106.579%); -ms-transform: translate(209.391%, 106.579%); transform: translate(209.391%, 106.579%); }
.tile.tile-position-3-3 { -webkit-transform: translate(209.391%, 211.039%); -moz-transform: translate(209.391%, 211.039%); -ms-transform: translate(209.391%, 211.039%); transform: translate(209.391%, 211.039%); }
.tile.tile-position-3-4 { -webkit-transform: translate(209.391%, 317.620%); -moz-transform: translate(209.391%, 317.620%); -ms-transform: translate(209.391%, 317.620%); transform: translate(209.391%, 317.620%); }
.tile.tile-position-4-1 { -webkit-transform: translate(314.436%, 1.383%); -moz-transform: translate(314.436%, 1.383%); -ms-transform: translate(314.436%, 1.383%); transform: translate(314.436%, 1.383%); }
.tile.tile-position-4-2 { -webkit-transform: translate(314.436%, 106.579%); -moz-transform: translate(314.436%, 106.579%); -ms-transform: translate(314.436%, 106.579%); transform: translate(314.436%, 106.579%); }
.tile.tile-position-4-3 { -webkit-transform: translate(314.436%, 211.039%); -moz-transform: translate(314.436%, 211.039%); -ms-transform: translate(314.436%, 211.039%); transform: translate(314.436%, 211.039%); }
.tile.tile-position-4-4 { -webkit-transform: translate(314.436%, 317.620%); -moz-transform: translate(314.436%, 317.620%); -ms-transform: translate(314.436%, 317.620%); transform: translate(314.436%, 317.620%); }

/* 方块内层：默认纯色+数字（资源缺失时的兜底） */
.tile .tile-inner {
  width: 100%;
  height: 100%;
  line-height: 1;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  border-radius: 6%;
  background: #eee4da;
  text-align: center;
  font-weight: bold;
  z-index: 10;
  font-size: 1.5em; }

.tile.tile-2 .tile-inner    { background: #eee4da; }
.tile.tile-4 .tile-inner    { background: #ede0c8; }
.tile.tile-8 .tile-inner    { color: #f9f6f2; background: #f2b179; }
.tile.tile-16 .tile-inner   { color: #f9f6f2; background: #f59563; }
.tile.tile-32 .tile-inner   { color: #f9f6f2; background: #f67c5f; }
.tile.tile-64 .tile-inner   { color: #f9f6f2; background: #f65e3b; }
.tile.tile-128 .tile-inner  { color: #f9f6f2; background: #edcf72; font-size: 1.05em; }
.tile.tile-256 .tile-inner  { color: #f9f6f2; background: #edcc61; font-size: 1.05em; }
.tile.tile-512 .tile-inner  { color: #f9f6f2; background: #edc850; font-size: 1.05em; }
.tile.tile-1024 .tile-inner { color: #f9f6f2; background: #edc53f; font-size: 0.8em; }
.tile.tile-2048 .tile-inner { color: #f9f6f2; background: #edc22e; font-size: 0.8em; }
.tile.tile-super .tile-inner { color: #f9f6f2; background: #3c3a32; font-size: 0.7em; }

/* 右上角数字角标：大圆角、白色数字、底色由 JS 动态生成的 .tile-badge-bg-* 设置 */
.tile-badge {
  position: absolute;
  top: 2%;
  right: 2%;
  z-index: 20;
  min-width: 1.6em;
  padding: 0.12em 0.5em;
  border-radius: 999px;
  font-size: 0.55em;
  font-weight: bold;
  line-height: 1.2;
  text-align: center;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  background: rgba(0,0,0,0.3);
  -webkit-transition: background-color 120ms ease;
  -moz-transition: background-color 120ms ease;
  transition: background-color 120ms ease; }

/* 资源就绪：切贴图模式（透明底+元素图，隐藏数字；元素100%充满格子） */
.assets-on .tile .tile-inner {
  background-color: transparent;
  background-repeat: no-repeat;
  background-position: center center;
  -webkit-background-size: 100% 100%;
  background-size: 100%;
  color: transparent;
  box-shadow: none;
  text-shadow: none; }
.assets-on .tile.tile-2 .tile-inner    { background-image: url(../assets/tiles/tile-2.png); }
.assets-on .tile.tile-4 .tile-inner    { background-image: url(../assets/tiles/tile-4.png); }
.assets-on .tile.tile-8 .tile-inner    { background-image: url(../assets/tiles/tile-8.png); }
.assets-on .tile.tile-16 .tile-inner   { background-image: url(../assets/tiles/tile-16.png); }
.assets-on .tile.tile-32 .tile-inner   { background-image: url(../assets/tiles/tile-32.png); }
.assets-on .tile.tile-64 .tile-inner   { background-image: url(../assets/tiles/tile-64.png); }
.assets-on .tile.tile-128 .tile-inner  { background-image: url(../assets/tiles/tile-128.png); }
.assets-on .tile.tile-256 .tile-inner  { background-image: url(../assets/tiles/tile-256.png); }
.assets-on .tile.tile-512 .tile-inner  { background-image: url(../assets/tiles/tile-512.png); }
.assets-on .tile.tile-1024 .tile-inner { background-image: url(../assets/tiles/tile-1024.png); }
.assets-on .tile.tile-2048 .tile-inner { background-image: url(../assets/tiles/tile-2048.png); }
.assets-on .tile.tile-super .tile-inner { background-image: url(../assets/tiles/tile-super.png); }

/* 出现 / 合并动画 */
@-webkit-keyframes appear {
  0% { opacity: 0; -webkit-transform: scale(0); transform: scale(0); }
  100% { opacity: 1; -webkit-transform: scale(1); transform: scale(1); } }
@-moz-keyframes appear {
  0% { opacity: 0; -moz-transform: scale(0); transform: scale(0); }
  100% { opacity: 1; -moz-transform: scale(1); transform: scale(1); } }
@keyframes appear {
  0% { opacity: 0; -webkit-transform: scale(0); -moz-transform: scale(0); -ms-transform: scale(0); transform: scale(0); }
  100% { opacity: 1; -webkit-transform: scale(1); -moz-transform: scale(1); -ms-transform: scale(1); transform: scale(1); } }

.tile-new .tile-inner {
  -webkit-animation: appear 200ms ease 100ms;
  -moz-animation: appear 200ms ease 100ms;
  animation: appear 200ms ease 100ms;
  -webkit-animation-fill-mode: backwards;
  -moz-animation-fill-mode: backwards;
  animation-fill-mode: backwards; }

@-webkit-keyframes pop {
  0% { -webkit-transform: scale(0); transform: scale(0); }
  50% { -webkit-transform: scale(1.2); transform: scale(1.2); }
  100% { -webkit-transform: scale(1); transform: scale(1); } }
@-moz-keyframes pop {
  0% { -moz-transform: scale(0); transform: scale(0); }
  50% { -moz-transform: scale(1.2); transform: scale(1.2); }
  100% { -moz-transform: scale(1); transform: scale(1); } }
@keyframes pop {
  0% { -webkit-transform: scale(0); -moz-transform: scale(0); -ms-transform: scale(0); transform: scale(0); }
  50% { -webkit-transform: scale(1.2); -moz-transform: scale(1.2); -ms-transform: scale(1.2); transform: scale(1.2); }
  100% { -webkit-transform: scale(1); -moz-transform: scale(1); -ms-transform: scale(1); transform: scale(1); } }

.tile-merged .tile-inner {
  z-index: 20;
  -webkit-animation: pop 200ms ease 100ms;
  -moz-animation: pop 200ms ease 100ms;
  animation: pop 200ms ease 100ms;
  -webkit-animation-fill-mode: backwards;
  -moz-animation-fill-mode: backwards;
  animation-fill-mode: backwards; }

/* 合并源方块：滑入目标格后即淡出（贴图透明底下会与新方块叠影，必须隐藏） */
.tile.tile-merge-source .tile-inner {
  -webkit-animation: merge-source-fade 60ms ease 100ms forwards;
  -moz-animation: merge-source-fade 60ms ease 100ms forwards;
  animation: merge-source-fade 60ms ease 100ms forwards; }
@-webkit-keyframes merge-source-fade {
  to { opacity: 0; } }
@-moz-keyframes merge-source-fade {
  to { opacity: 0; } }
@keyframes merge-source-fade {
  to { opacity: 0; } }

/* ---------- 棋盘下方三按钮 ---------- */
.action-bar {
  position: absolute;
  left: 50%;
  top: 66.3%;
  width: 40%;
  -webkit-transform: translateX(-55%);
  -moz-transform: translateX(-55%);
  -ms-transform: translateX(-55%);
  transform: translateX(-55%);
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  z-index: 5; }

.action-btn {
  display: block;
  width: 30%;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent; }
  .action-btn img {
    display: block;
    width: 100%;
    height: auto;
    -webkit-transition: -webkit-transform 80ms ease;
    transition: transform 80ms ease; }
  .action-btn:active img {
    -webkit-transform: scale(0.92);
    -moz-transform: scale(0.92);
    -ms-transform: scale(0.92);
    transform: scale(0.92); }
  .action-btn .action-label {
    display: block;
    margin-top: 2%;
    font-size: 0.4em;
    font-weight: bold;
    color: #ffe9b0;
    text-shadow: 0 1px 3px rgba(30, 20, 70, 0.95);
    letter-spacing: 0.05em; }
  .action-btn .hammer-count {
    font-style: normal;
    color: #ffd76e;
    margin-left: 0.2em; }

/* 月老剪按钮状态（在图片上叠加效果） */
.hammer-button.hammer-active img {
  -webkit-filter: drop-shadow(0 0 8px rgba(255, 215, 110, 0.95));
  filter: drop-shadow(0 0 8px rgba(255, 215, 110, 0.95)); }
.hammer-button.hammer-disabled {
  opacity: 0.45;
  cursor: default; }

/* 月老剪提示条：棋盘上方 */
.hammer-tip {
  display: none;
  position: absolute;
  top: -7.2%;
  left: -4%;
  right: -4%;
  z-index: 30;
  text-align: center;
  font-size: 0.5em;
  color: #ffe9b0;
  background: rgba(60, 45, 120, 0.92);
  border: 1px solid rgba(255, 215, 110, 0.5);
  border-radius: 6px;
  padding: 1.2% 2%; }
  .hammer-tip.show {
    display: block; }

/* 选择模式：方块微发光呼吸 */
.tile-container.hammer-mode .tile .tile-inner {
  -webkit-animation: hammer-glow 1.2s ease-in-out infinite;
  -moz-animation: hammer-glow 1.2s ease-in-out infinite;
  animation: hammer-glow 1.2s ease-in-out infinite;
  cursor: pointer; }
@-webkit-keyframes hammer-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 215, 110, 0); }
  50% { box-shadow: 0 0 12px 3px rgba(255, 215, 110, 0.85); } }
@-moz-keyframes hammer-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 215, 110, 0); }
  50% { box-shadow: 0 0 12px 3px rgba(255, 215, 110, 0.85); } }
@keyframes hammer-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 215, 110, 0); }
  50% { box-shadow: 0 0 12px 3px rgba(255, 215, 110, 0.85); } }

/* 选中方块：抖动提示"再点一次确认" */
.tile.tile-selected .tile-inner {
  -webkit-animation: hammer-shake 0.5s ease-in-out infinite;
  -moz-animation: hammer-shake 0.5s ease-in-out infinite;
  animation: hammer-shake 0.5s ease-in-out infinite;
  box-shadow: 0 0 0 3px #ffd76e, 0 0 14px 4px rgba(255, 215, 110, 0.9) !important; }
@-webkit-keyframes hammer-shake {
  0%, 100% { -webkit-transform: translateX(0); }
  25% { -webkit-transform: translateX(-2px); }
  75% { -webkit-transform: translateX(2px); } }
@-moz-keyframes hammer-shake {
  0%, 100% { -moz-transform: translateX(0); }
  25% { -moz-transform: translateX(-2px); }
  75% { -moz-transform: translateX(2px); } }
@keyframes hammer-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-2px); }
  75% { transform: translateX(2px); } }

/* 碎裂消失动画 */
.tile.tile-destroyed {
  z-index: 40; }
  .tile.tile-destroyed .tile-inner {
    -webkit-animation: hammer-break 0.22s ease-in forwards;
    -moz-animation: hammer-break 0.22s ease-in forwards;
    animation: hammer-break 0.22s ease-in forwards; }
@-webkit-keyframes hammer-break {
  0% { opacity: 1; -webkit-transform: scale(1) rotate(0deg); }
  60% { opacity: 0.9; -webkit-transform: scale(1.08) rotate(-4deg); }
  100% { opacity: 0; -webkit-transform: scale(0.2) rotate(10deg); } }
@-moz-keyframes hammer-break {
  0% { opacity: 1; -moz-transform: scale(1) rotate(0deg); }
  60% { opacity: 0.9; -moz-transform: scale(1.08) rotate(-4deg); }
  100% { opacity: 0; -moz-transform: scale(0.2) rotate(10deg); } }
@keyframes hammer-break {
  0% { opacity: 1; transform: scale(1) rotate(0deg); }
  60% { opacity: 0.9; transform: scale(1.08) rotate(-4deg); }
  100% { opacity: 0; transform: scale(0.2) rotate(10deg); } }

/* ---------- 弹窗通用（绑定角色 / 飞鸽传书） ---------- */
.bind-dialog, .letter-dialog {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 100; }
  .bind-dialog[hidden], .letter-dialog[hidden] {
    display: none; }
.bind-mask, .letter-mask {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(8, 10, 34, 0.62); }
.bind-body, .letter-body {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 460px;
  max-height: 80%;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-direction: column;
  flex-direction: column;
  background: #f7f4fc;
  border-radius: 8px;
  overflow: hidden; }
.letter-panel {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 460px; }
  .letter-panel .letter-body {
    position: relative;
    left: auto;
    top: auto;
    width: 100%;
    max-width: none;
    max-height: calc(80vh - 24px);
    -webkit-transform: none;
    -moz-transform: none;
    -ms-transform: none;
    transform: none; }
.letter-ai-notice {
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
  line-height: 18px;
  text-align: center;
  text-shadow: 0 1px 2px rgba(8, 10, 34, 0.55); }
.bind-head, .letter-head {
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  padding: 14px 16px;
  background: #e4d8f5; }
  .bind-head h2 {
    margin: 0;
    font-size: 17px;
    color: #5c4a86; }
.bind-close, .letter-close {
  padding: 6px 10px;
  border-radius: 4px;
  background: #7b639e;
  color: #f9f6f2;
  font-size: 14px;
  cursor: pointer; }
.bind-content {
  padding: 16px; }

/* 绑定表单 */
.role-login-form {
  display: block; }
  .role-login-form input {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 8px;
    padding: 10px 12px;
    border: 1px solid #cfc4e4;
    border-radius: 4px;
    font-size: 15px;
    color: #5c4a86;
    background: #fff; }
  .role-login-form.bound input,
  .role-login-form.bound .form-button {
    display: none; }

.form-button {
  display: inline-block;
  box-sizing: border-box;
  width: 100%;
  margin-bottom: 8px;
  padding: 10px 12px;
  border: none;
  border-radius: 4px;
  background: #7b639e;
  color: #f9f6f2;
  font-size: 15px;
  text-align: center;
  text-decoration: none;
  cursor: pointer; }
  .form-button.disabled {
    opacity: 0.5;
    cursor: default; }

.role-status {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: #8d81ad; }

.text-button {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  color: #7b639e;
  cursor: pointer;
  text-decoration: underline; }
  .text-button[hidden] {
    display: none; }

/* 飞鸽传书 */
.letter-persona {
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center; }
  .letter-persona h2 {
    margin: 0;
    font-size: 17px;
    color: #5c4a86; }
  .letter-persona p {
    margin: 2px 0 0;
    font-size: 12px;
    color: #8d81ad; }
    .letter-persona p em {
      font-style: normal;
      margin-left: 6px; }
.letter-avatar {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 40px;
  margin-right: 10px;
  border-radius: 50%;
  background: #9a6ec0;
  color: #f9f6f2;
  font-size: 20px;
  line-height: 40px;
  text-align: center;
  overflow: hidden; }
  .letter-avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover; }
  .letter-avatar img[hidden] {
    display: none; }
.letter-persona-tabs {
  display: -webkit-flex;
  display: flex;
  gap: 6px;
  padding: 8px 16px 0;
  background: #f9f6f2; }
  .letter-persona-tabs[hidden] {
    display: none; }
.letter-persona-tab {
  min-width: 72px;
  height: 30px;
  border: 1px solid #cfc4e4;
  border-radius: 4px 4px 0 0;
  background: #fff;
  color: #766798;
  font: inherit;
  font-size: 13px;
  cursor: pointer; }
  .letter-persona-tab.active {
    border-color: #8c639f;
    background: #8c639f;
    color: #fff; }
.letter-reward-status {
  margin: 0;
  padding: 8px 16px;
  border-bottom: 1px solid #ddd3ee;
  background: #f0eafa;
  color: #766798;
  font-size: 12px;
  line-height: 1.5; }
  .letter-reward-status.sent {
    color: #39785a; }
  .letter-reward-status.failed {
    color: #c05746; }
.letter-thread {
  -webkit-flex: 1;
  flex: 1;
  min-height: 160px;
  max-height: 320px;
  overflow-y: auto;
  padding: 14px 16px; }
.letter-note {
  margin: 30px 0;
  text-align: center;
  font-size: 14px;
  color: #8d81ad; }
.letter-item {
  margin-bottom: 10px;
  overflow: hidden; }
  .letter-item .letter-bubble {
    max-width: 78%;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word; }
  .letter-item.letter-npc .letter-bubble {
    float: left;
    background: #e9e0f7;
    color: #5c4a86;
    border-top-left-radius: 2px; }
  .letter-item.letter-me .letter-bubble {
    float: right;
    background: #9a6ec0;
    color: #f9f6f2;
    border-top-right-radius: 2px; }
.letter-status {
  display: block;
  clear: both;
  font-size: 12px;
  color: #8d81ad;
  margin-top: 2px; }
  .letter-status-failed {
    color: #c05746; }
.letter-compose {
  border-top: 1px solid #ddd3ee;
  padding: 10px 16px 14px; }
  .letter-compose textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    resize: none;
    border: 1px solid #cfc4e4;
    border-radius: 4px;
    padding: 8px 10px;
    font-size: 14px;
    color: #5c4a86;
    background: #fff; }
.letter-compose-bar {
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  margin-top: 8px; }
  .letter-compose-bar span {
    font-size: 12px;
    color: #8d81ad; }
  .letter-compose-bar .form-button {
    width: auto;
    margin-bottom: 0;
    padding: 8px 24px; }
    .letter-compose-bar .form-button[disabled] {
      opacity: 0.5; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 60px;
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  z-index: 200;
  max-width: 80%;
  padding: 10px 18px;
  border-radius: 20px;
  background: rgba(10, 12, 40, 0.82);
  color: #ffe9b0;
  font-size: 14px;
  text-align: center; }
  .toast[hidden] {
    display: none; }

body.dialogue-open {
  overflow: hidden; }