/* ======================================================
   Kitty 邀请函 · v8 kawaii 风格
   调色板(pixel-asset-master 从模板素材提取):
   白#F0F0F0 粉#E080A0 浅粉#F0A0B0 深粉#C07080 黄#F0E070 暖黑#4A3A40
   ====================================================== */
:root {
    --bg: #fdf4f7;
    --ink: #4a3a40;
    --pink: #e080a0;
    --pink-light: #f0a0b0;
    --pink-deep: #c07080;
    --pink-pale: #f7dfe8;
    --yellow: #f0e070;
    --cream: #fffdf8;
}

* { box-sizing: border-box; }

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* 点阵底纹 */
body.kawaii-theme {
    background-color: var(--bg);
    background-image: radial-gradient(rgba(224, 128, 160, .08) 2px, transparent 2px);
    background-size: 26px 26px;
}

#app { width: 100%; display: flex; justify-content: center; }

/* ======================================================
   HUD：爱心 + 进度条
   ====================================================== */
.hud {
    position: fixed;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 98;
}
.hearts {
    color: var(--pink);
    font-size: 14px;
    letter-spacing: 6px;
    text-shadow: 0 1px 0 rgba(192, 112, 128, .4);
}

.progress-container {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 6px;
    background: var(--pink-pale);
    z-index: 99;
}
.progress-bar {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--pink-light), var(--pink));
    border-radius: 0 4px 4px 0;
    transition: width 0.45s ease;
}

/* ======================================================
   屏幕切换
   ====================================================== */
.screen {
    display: none;
    width: 100%;
    max-width: 420px;
    min-height: 100%;
    flex-direction: column;
    align-items: center;
}
.screen.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ======================================================
   STAGE 1 · 信封
   ====================================================== */
.s1-body, .s2-body, .s3-body {
    flex: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 56px 16px 24px;
    gap: 18px;
}

.tap-hint {
    color: var(--pink-deep);
    font-size: 14px;
    letter-spacing: 3px;
    margin: 0;
    animation: hintBlink 1.4s steps(2) infinite;
}
@keyframes hintBlink { 50% { opacity: .4; } }

.envelope-wrapper {
    position: relative;
    width: 310px;
    height: 226px;
    cursor: pointer;
}
.envelope-back {
    position: absolute;
    inset: 0;
    background: var(--pink-light);
    border: 3px solid var(--ink);
    border-radius: 12px;
}
.letter {
    position: absolute;
    left: 50%;
    bottom: 8px;
    width: 86%;
    height: 88%;
    transform: translateX(-50%);
    background: var(--cream);
    border: 3px solid var(--ink);
    border-radius: 10px;
    transition: transform 0.55s cubic-bezier(.22, 1, .36, 1) 0.4s;
    z-index: 2;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(192, 112, 128, .25);
}
.envelope-wrapper.open .letter {
    transform: translateX(-50%) translateY(-46%);
}
.letter-inner {
    width: 100%;
    height: 100%;
    padding: 14px 12px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.35s ease 0.55s;
}
.envelope-wrapper.open .letter-inner { opacity: 1; }
.kitty-in-letter {
    width: 70px;
    animation: kittyBob 2.4s ease-in-out infinite;
}
@keyframes kittyBob { 50% { transform: translateY(-4px); } }

/* RPG 对话框 */
.dialog-box {
    position: relative;
    width: 100%;
    background: #fff;
    border: 2.5px solid var(--ink);
    border-radius: 10px;
    padding: 11px 8px 7px;
}
.dialog-name {
    position: absolute;
    top: -11px;
    left: 8px;
    background: var(--pink);
    color: #fff;
    font-size: 10px;
    padding: 1.5px 9px;
    border: 2px solid var(--ink);
    border-radius: 99px;
    letter-spacing: 1px;
}
.dialog-text {
    margin: 0;
    min-height: 18px;
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--ink);
    text-align: center;
}

/* 按钮：胶囊 + 底部实体阴影 */
.options-row {
    /* 不设 position：躲避时按钮的绝对定位基准上浮到 .letter，坐标才正确 */
    width: 100%;
    height: 42px;
    display: flex;
    justify-content: center;
    gap: 16px;
}
.btn-yes, .btn-no {
    border: 2.5px solid var(--ink);
    border-radius: 99px;
    padding: 8px 22px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s, left 0.25s ease-out, top 0.25s ease-out;
}
.btn-yes {
    background: var(--pink);
    color: #fff;
    box-shadow: 0 4px 0 var(--pink-deep);
}
.btn-yes:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--pink-deep);
}
.btn-no {
    background: var(--cream);
    color: var(--ink);
    box-shadow: 0 4px 0 #e8d5dc;
    /* 初始为普通 flex 项与“好呀”并排；躲避时 JS 切换为绝对定位 */
    -webkit-tap-highlight-color: transparent;
    touch-action: none;
    z-index: 5;
}

.envelope-front {
    position: absolute;
    inset: 0;
    background: var(--pink-light);
    border: 3px solid var(--ink);
    border-radius: 12px;
    clip-path: polygon(0 0, 50% 55%, 100% 0, 100% 100%, 0 100%);
    z-index: 3;
    transition: clip-path 0.55s cubic-bezier(.22, 1, .36, 1) 0.3s;
}
.envelope-wrapper.open .envelope-front {
    clip-path: polygon(0 55%, 50% 78%, 100% 55%, 100% 100%, 0 100%);
    z-index: 1;
}
.top-flap {
    position: absolute;
    top: -3px;
    left: -3px;
    width: calc(100% + 6px);
    height: 55%;
    background: #eab6c4;
    border: 3px solid var(--ink);
    border-radius: 12px 12px 0 0;
    clip-path: polygon(0 0, 100% 0, 50% 96%);
    transform-origin: top;
    transition: transform 0.5s cubic-bezier(.55, 0, .55, 1) 0.05s, z-index 0s 0.25s;
    z-index: 4;
}
.envelope-wrapper.open .top-flap {
    transform: rotateX(180deg);
    z-index: 1;
}

/* 火漆：白圆章内嵌 Kitty */
.wax-seal {
    position: absolute;
    top: 42%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    z-index: 5;
    box-shadow: 0 3px 8px rgba(192, 112, 128, .35);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.wax-seal img { width: 46px; }
.envelope-wrapper.open .wax-seal {
    transform: translate(-50%, -50%) scale(1.4) rotate(20deg);
    opacity: 0;
    pointer-events: none;
}

/* 拆封飘心 */
.float-heart {
    position: absolute;
    color: var(--pink);
    font-size: 20px;
    z-index: 10;
    pointer-events: none;
    animation: heartUp 1.5s ease-out forwards;
}
@keyframes heartUp {
    0% { opacity: 1; transform: translateY(0) scale(0.6); }
    100% { opacity: 0; transform: translateY(-90px) scale(1.4); }
}

/* ======================================================
   STAGE 2 · 卡片 + CSS 礼物盒
   ====================================================== */
.pixel-card {
    width: 100%;
    background: var(--cream);
    border: 3px solid var(--ink);
    border-radius: 18px;
    box-shadow: 0 6px 18px rgba(192, 112, 128, .2);
    padding: 24px 18px 26px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.title {
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--ink);
}
.gift-scene {
    position: relative;
    width: 230px;
    height: 168px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: 16px;
}

/* CSS 礼物盒 */
.cgift { position: relative; width: 150px; height: 122px; cursor: pointer; }
.cgift .lid {
    position: absolute;
    top: 0;
    left: -8px;
    width: 166px;
    height: 28px;
    background: var(--pink);
    border: 3px solid var(--ink);
    border-radius: 8px;
    z-index: 2;
    transition: transform 0.7s cubic-bezier(.36, .07, .19, .97), opacity 0.7s;
}
.cgift .lid::before, .cgift .lid::after {
    content: "";
    position: absolute;
    top: -18px;
    width: 24px;
    height: 17px;
    border: 3px solid var(--ink);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    background: var(--pink);
}
.cgift .lid::before { left: 36px; transform: rotate(-24deg); }
.cgift .lid::after { right: 36px; transform: rotate(24deg); }
.cgift .body {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 150px;
    height: 96px;
    background: var(--pink-light);
    border: 3px solid var(--ink);
    border-radius: 4px 4px 12px 12px;
    transition: box-shadow 0.4s;
}
.cgift .body::after {
    content: "";
    position: absolute;
    top: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: calc(100% + 6px);
    background: var(--pink);
    border-left: 3px solid var(--ink);
    border-right: 3px solid var(--ink);
}
.cgift .tag {
    position: absolute;
    bottom: 12px;
    right: 0;
    width: 28px;
    height: 20px;
    background: var(--yellow);
    border: 2.5px solid var(--ink);
    border-radius: 4px;
    transform: rotate(12deg);
    z-index: 3;
}

/* 摇晃：幅度递增 */
.cgift.shake-1 { animation: shake1 0.4s linear; }
.cgift.shake-2 { animation: shake2 0.42s linear; }
.cgift.shake-3 { animation: shake3 0.45s linear; }
@keyframes shake1 {
    0%, 100% { transform: translateX(0) rotate(0); }
    25% { transform: translateX(-5px) rotate(-2deg); }
    75% { transform: translateX(5px) rotate(2deg); }
}
@keyframes shake2 {
    0%, 100% { transform: translateX(0) rotate(0); }
    20% { transform: translateX(-9px) rotate(-3deg); }
    50% { transform: translateX(8px) rotate(3deg); }
    80% { transform: translateX(-6px) rotate(-2deg); }
}
@keyframes shake3 {
    0%, 100% { transform: translateX(0) rotate(0); }
    15% { transform: translateX(-13px) rotate(-5deg); }
    35% { transform: translateX(12px) rotate(5deg); }
    55% { transform: translateX(-10px) rotate(-4deg); }
    75% { transform: translateX(8px) rotate(3deg); }
}

/* 开盒：盖子飞出 + 盒身发光 */
.cgift.pop .lid {
    transform: translate(-36px, -170px) rotate(-38deg);
    opacity: 0;
}
.cgift.pop .body { box-shadow: 0 0 30px rgba(240, 224, 112, .8); }

/* 反馈簇 */
.feedback {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.charge-bar { display: flex; gap: 6px; }
.charge-bar i {
    width: 38px;
    height: 14px;
    background: var(--pink-pale);
    border: 2.5px solid var(--ink);
    border-radius: 99px;
    transition: background 0.2s ease;
}
.charge-bar i.on { background: var(--pink); }
.charge-bar i.on.big { background: var(--yellow); }
.shake-count {
    margin: 0;
    font-size: 14px;
    color: #d05070;
    font-weight: 700;
    letter-spacing: 2px;
}
.sub-title { margin: 0; font-size: 12px; color: #b39aa2; }

/* 连击飘字 */
.combo-pop {
    position: absolute;
    top: 26%;
    color: #d05070;
    font-size: 19px;
    font-weight: 800;
    text-shadow: 2px 2px 0 #fff;
    pointer-events: none;
    animation: comboUp 0.85s ease-out forwards;
    z-index: 5;
}
@keyframes comboUp {
    0% { opacity: 1; transform: translateY(0) scale(0.7); }
    40% { transform: translateY(-26px) scale(1.25); }
    100% { opacity: 0; transform: translateY(-48px) scale(1); }
}

/* ======================================================
   FINAL · 揭晓
   ====================================================== */
.item-banner {
    display: none;
    align-items: center;
    gap: 14px;
    width: 100%;
    background: var(--ink);
    border: 3px solid var(--pink);
    border-radius: 16px;
    box-shadow: 0 4px 0 var(--pink-deep);
    padding: 12px 18px;
    margin-bottom: 2px;
}
.item-banner.show {
    display: flex;
    animation: itemGet 0.55s cubic-bezier(.34, 1.56, .64, 1);
}
@keyframes itemGet {
    0% { opacity: 0; transform: scale(0.6) rotate(-4deg); }
    60% { transform: scale(1.08); }
    100% { opacity: 1; transform: scale(1) rotate(0); }
}

/* 横幅里的迷你礼物盒 */
.mini-gift {
    position: relative;
    width: 50px;
    height: 42px;
    flex-shrink: 0;
    animation: itemIconSpin 1.2s ease-in-out infinite;
}
.mini-gift .lid {
    position: absolute;
    top: 0;
    left: -2px;
    width: 54px;
    height: 11px;
    background: var(--pink);
    border: 2.5px solid var(--cream);
    border-radius: 4px;
}
.mini-gift .lid::before, .mini-gift .lid::after {
    content: "";
    position: absolute;
    top: -8px;
    width: 11px;
    height: 8px;
    border: 2.5px solid var(--cream);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    background: var(--pink);
}
.mini-gift .lid::before { left: 11px; transform: rotate(-24deg); }
.mini-gift .lid::after { right: 11px; transform: rotate(24deg); }
.mini-gift .body {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 32px;
    background: var(--pink-light);
    border: 2.5px solid var(--cream);
    border-radius: 2px 2px 7px 7px;
}
.mini-gift .body::after {
    content: "";
    position: absolute;
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 11px;
    height: calc(100% + 4px);
    background: var(--pink);
}
@keyframes itemIconSpin {
    0%, 100% { transform: rotate(-8deg) scale(1); }
    50% { transform: rotate(8deg) scale(1.12); }
}

.item-get { margin: 0; color: var(--yellow); font-size: 11px; letter-spacing: 3px; }
.item-name { margin: 3px 0 0; color: #fff; font-size: 15px; font-weight: 700; }

/* 全家福 */
.hero {
    position: relative;
    width: 100%;
    height: 196px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin: 8px 0 6px;
}
.kitty-big { width: 138px; animation: kittyBob 2.4s ease-in-out infinite; }
.moon { position: absolute; top: 0; right: 14px; width: 40px; }
.arrow-corner { position: absolute; left: 10px; bottom: 16px; width: 34px; }

/* 揭晓组 */
.reveal-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}
.fline { margin: 0; font-size: 15px; font-weight: 700; color: var(--ink); }
.fplace {
    margin: 0;
    background: #fff;
    border: 3px solid var(--ink);
    box-shadow: 0 4px 0 var(--pink);
    padding: 9px 20px;
    border-radius: 12px;
    color: #d05070;
    font-size: 16px;
    font-weight: 700;
    min-height: 22px;
}
.fsub { margin: 0; font-size: 12px; color: #b39aa2; text-align: center; line-height: 1.7; }
.btn-full {
    width: 100%;
    max-width: 320px;
    border: 2.5px solid var(--ink);
    border-radius: 99px;
    padding: 13px 0;
    background: var(--pink);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 2px;
    cursor: pointer;
    box-shadow: 0 4px 0 var(--pink-deep);
    transition: transform 0.1s, box-shadow 0.1s;
    margin-top: 4px;
}
.btn-full:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--pink-deep);
}

/* ======================================================
   特效层
   ====================================================== */
.flash-layer {
    position: fixed;
    inset: 0;
    background: #fff;
    opacity: 0;
    pointer-events: none;
    z-index: 200;
}
.flash-layer.go { animation: whiteFlash 0.35s ease-out; }
@keyframes whiteFlash {
    0% { opacity: 0.9; }
    100% { opacity: 0; }
}

.micro-shake { animation: microShake 0.2s steps(3); }
@keyframes microShake {
    0%, 100% { transform: translate(0, 0); }
    30% { transform: translate(-3px, 2px); }
    60% { transform: translate(3px, -2px); }
}

/* ======================================================
   小屏兼容
   ====================================================== */
@media (max-width: 360px) {
    .envelope-wrapper { transform: scale(0.92); }
    .cgift { transform-origin: bottom center; }
    .kitty-big { width: 122px; }
}

/* 道具横幅平滑退场 */
.item-banner.leaving {
    opacity: 0;
    transform: scale(0.94);
    transition: opacity 0.38s ease, transform 0.38s ease;
}