/* ==========================================================================
   XCompute 中秋国庆活动酬谢 · 月下来信
   设计语言：黛蓝夜色 / 月金 / 朱砂 / 青玉 / 宣纸
   色值由 OKLCH 调色后换算为 HEX，兼容旧内核（QQ / 微信内置浏览器）
   ========================================================================== */

:root {
  /* 夜 · 黛蓝 */
  --night-950: #040a1e;
  --night-900: #07112e;
  --night-850: #0a183a;
  --night-800: #0d1f45;
  --night-700: #192f58;
  --night-600: #2b4570;
  --night-500: #445f85;
  --night-400: #7088a7;
  --night-300: #97adc7;
  --night-200: #bfd0e2;
  --night-100: #dee9f5;

  /* 月 · 金 */
  --moon-50: #fdf9e6;
  --moon-100: #fbf2d0;
  --moon-200: #f6e4ac;
  --moon-300: #efd281;
  --moon-400: #e6ba5a;
  --moon-500: #d19936;
  --moon-600: #ab7225;
  --moon-700: #774914;
  --moon-800: #4f2b08;

  /* 朱 · 砂 */
  --zhu-300: #f37d65;
  --zhu-400: #e85339;
  --zhu-500: #cc3526;
  --zhu-600: #a52018;
  --zhu-700: #7c1310;
  --zhu-800: #540a0a;

  /* 玉（与主站青绿呼应） */
  --jade-300: #8bdec4;
  --jade-400: #4ec2a2;
  --jade-500: #1f9b82;
  --jade-600: #027462;

  /* 纸与墨 */
  --paper-50: #fbf6eb;
  --paper-100: #f6eedb;
  --paper-200: #ede0c5;
  --paper-300: #decba9;
  --ink-900: #171f2e;
  --ink-700: #353d4d;
  --ink-500: #6f614d;
  --ink-400: #8c7e69;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Fraunces", "Noto Serif SC", Georgia, "Times New Roman", serif;
  --font-brush: "Zhi Mang Xing", "STXingkai", "Xingkai SC", "KaiTi", "STKaiti", "Kaiti SC", cursive;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Roboto Mono", monospace;

  --fs-hero: clamp(2.7rem, 1.35rem + 5.6vw, 5.5rem);
  --fs-xl: clamp(2rem, 1.35rem + 2.4vw, 3.1rem);
  --fs-lg: clamp(1.5rem, 1.2rem + 1.1vw, 2rem);

  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-out-expo: cubic-bezier(.16, 1, .3, 1);

  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 56px);

  /* 海水纹（青海波）：navy 填充 + 金线，叠在深色区块上做暗纹 */
  --seigaiha: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='40' viewBox='0 0 80 40'%3E%3Cdefs%3E%3Cg id='c' fill='%23040a1e' stroke='%23e6ba5a' stroke-width='1'%3E%3Ccircle r='38'/%3E%3Ccircle r='28'/%3E%3Ccircle r='18'/%3E%3Ccircle r='8'/%3E%3C/g%3E%3C/defs%3E%3Cuse href='%23c' x='40' y='-20'/%3E%3Cuse href='%23c' x='0' y='0'/%3E%3Cuse href='%23c' x='80' y='0'/%3E%3Cuse href='%23c' x='40' y='20'/%3E%3Cuse href='%23c' x='0' y='40'/%3E%3Cuse href='%23c' x='80' y='40'/%3E%3Cuse href='%23c' x='40' y='60'/%3E%3C/svg%3E");
  /* 回纹角花边框（border-image 用） */
  --fret: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='90' height='90' fill='none' stroke='%23e6ba5a' stroke-width='1.4'%3E%3Cpath d='M2.5 30V2.5H30M60 2.5H87.5V30M87.5 60V87.5H60M30 87.5H2.5V60'/%3E%3Cpath d='M30 2.5H60M87.5 30V60M60 87.5H30M2.5 60V30' opacity='.55'/%3E%3Cpath d='M8.5 24V8.5H24M8.5 24h5M24 8.5v5M66 8.5H81.5V24M81.5 24h-5M66 8.5v5M81.5 66V81.5H66M81.5 66h-5M66 81.5v-5M24 81.5H8.5V66M8.5 66h5M24 81.5v-5'/%3E%3C/svg%3E");
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .42 0 0 0 0 .32 0 0 0 0 .18 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ───────── base ───────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background: var(--night-950);
  color: var(--night-200);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-kerning: normal;
}

main { overflow-x: hidden; overflow-x: clip; }

img, svg { max-width: 100%; }
button { font: inherit; color: inherit; }
a { color: inherit; }
b, strong { font-weight: 600; }

:focus-visible {
  outline: 2px solid var(--moon-300);
  outline-offset: 3px;
  border-radius: 4px;
}

.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.sm-only { display: none; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--moon-200); color: #2a1804; padding: 10px 18px; border-radius: 999px;
  font-weight: 600; text-decoration: none; transition: top .2s var(--ease-out);
}
.skip:focus { top: 14px; }

.wrap {
  width: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  margin: 0 0 18px;
  font: 600 .8125rem/1 var(--font-sans);
  letter-spacing: .32em;
  color: var(--moon-400);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }

[data-glyph] { position: relative; isolation: isolate; }
[data-glyph]::after {
  content: attr(data-glyph); position: absolute; z-index: -1; left: -.16em; top: -.42em;
  font: 400 clamp(9rem, 6rem + 12vw, 17rem)/1 var(--font-brush);
  color: rgba(239, 210, 129, .07); pointer-events: none; -webkit-user-select: none; user-select: none;
}
.section-head h2 {
  margin: 0;
  font: 900 var(--fs-xl)/1.22 var(--font-serif);
  letter-spacing: .03em;
  color: var(--moon-50);
}
.section-head__desc { max-width: 36em; margin: 16px 0 0; color: var(--night-300); }

/* ───────── buttons ───────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 30px;
  border: 0; border-radius: 999px; cursor: pointer;
  font: 600 1rem/1 var(--font-serif); letter-spacing: .14em; text-decoration: none; white-space: nowrap;
  transition: transform .22s var(--ease-out), box-shadow .22s var(--ease-out), background-color .2s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(1px) scale(.985); }
.btn--gold {
  color: #2a1804;
  background: linear-gradient(180deg, #faecba 0%, #e6ba5a 56%, #cf9533 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .65), inset 0 0 0 1px rgba(119, 73, 20, .35), 0 12px 30px -12px rgba(230, 186, 90, .7);
}
.btn--gold:hover { transform: translateY(-2px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .65), inset 0 0 0 1px rgba(119, 73, 20, .35), 0 18px 36px -12px rgba(230, 186, 90, .8); }
.btn--ghost { color: var(--moon-200); background: rgba(7, 17, 46, .4); box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .5); }
.btn--ghost:hover { background: rgba(239, 210, 129, .12); }
.btn--zhu {
  color: var(--paper-50);
  background: linear-gradient(180deg, #d9432f 0%, #a52018 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .28), 0 10px 22px -10px rgba(165, 32, 24, .8);
}
.btn--zhu:hover { transform: translateY(-1px); background: linear-gradient(180deg, #e04c37 0%, #b1261c 100%); }
.btn--quiet { color: var(--ink-700); background: transparent; box-shadow: inset 0 0 0 1px rgba(23, 31, 46, .22); }
.btn--quiet:hover { background: rgba(23, 31, 46, .06); }
.btn--sm { min-height: 42px; padding: 0 22px; font-size: .9375rem; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }

.linkish {
  padding: 0; border: 0; background: none; cursor: pointer;
  color: var(--moon-300); font: 600 1em var(--font-num); letter-spacing: .04em;
  text-decoration: underline; text-decoration-color: rgba(239, 210, 129, .4); text-underline-offset: 4px;
}
.linkish:hover { text-decoration-color: currentColor; }

/* ───────── topbar ───────── */
.topbar {
  position: absolute; z-index: 5; inset: 0 0 auto 0;
  display: flex; align-items: center; gap: 24px;
  padding: 22px var(--gutter);
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--moon-50); text-decoration: none; }
.brand__mark { width: 26px; height: 26px; flex: none; }
.brand__name { font: 700 1.3rem/1 var(--font-num); letter-spacing: .01em; }
.brand__tag {
  padding-left: 12px; border-left: 1px solid rgba(239, 210, 129, .35);
  font-size: .75rem; letter-spacing: .26em; color: var(--moon-300);
}
.topbar__nav { margin-left: auto; display: flex; gap: clamp(18px, 2.6vw, 34px); }
.topbar__nav a {
  position: relative; padding: 10px 0;
  font-size: .875rem; letter-spacing: .1em; color: var(--night-200); text-decoration: none;
  transition: color .2s;
}
.topbar__nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 1px;
  background: var(--moon-300); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease-out);
}
.topbar__nav a:hover { color: var(--moon-100); }
.topbar__nav a:hover::after { transform: scaleX(1); }
.topbar__console {
  padding: 9px 18px; border-radius: 999px;
  font-size: .8125rem; letter-spacing: .08em; color: var(--moon-200); text-decoration: none;
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .4);
  transition: background-color .2s;
}
.topbar__console:hover { background: rgba(239, 210, 129, .12); }

/* ───────── hero ───────── */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  display: flex; align-items: center;
  min-height: min(100vh, 940px);
  min-height: min(100svh, 940px);
  padding: 104px 0 clamp(150px, 16vw, 232px);
}
.hero__sky {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 64% 36% at 70% 100%, rgba(233, 158, 92, .22), transparent 72%),
    linear-gradient(180deg, #030818 0%, #07112e 32%, #0d1f45 64%, #213d75 100%);
}
.hero__sky::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--grain); opacity: .16; mix-blend-mode: overlay;
}

.galaxy {
  position: absolute; inset: -12% -20% 34% -20%; transform: rotate(-17deg);
  background: radial-gradient(ellipse 58% 17% at 38% 46%, rgba(122, 152, 235, .2), transparent 72%);
}
.stars { position: absolute; inset: 0 0 30% 0; }
.sparkle { position: absolute; width: calc(20px * var(--s, 1)); height: calc(20px * var(--s, 1)); margin: calc(-10px * var(--s, 1)) 0 0 calc(-10px * var(--s, 1)); animation: glint 3.6s ease-in-out var(--delay, 0s) infinite; }
.sparkle svg { display: block; width: 100%; height: 100%; }
.star {
  position: absolute; left: var(--x); top: var(--y);
  width: var(--s); height: var(--s); border-radius: 50%;
  background: #fdf9e6; opacity: var(--o);
}
.star--tw { animation: twinkle var(--d) ease-in-out var(--delay) infinite alternate; }

.moon {
  position: absolute;
  width: clamp(250px, 37vw, 520px); aspect-ratio: 1;
  right: clamp(-50px, 5vw, 110px); top: clamp(76px, 11vh, 130px);
  animation: moonrise 2.4s var(--ease-out) both;
}
.moon__halo {
  position: absolute; inset: -58%; border-radius: 50%;
  background: radial-gradient(circle, rgba(251, 237, 184, .42) 0%, rgba(251, 237, 184, .2) 31%, rgba(251, 237, 184, .07) 47%, transparent 64%);
  animation: breathe 7s ease-in-out infinite;
}
.moon__rays {
  position: absolute; inset: -78%; border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, rgba(251, 237, 184, .075) 0deg 2.5deg, transparent 2.5deg 12deg);
  -webkit-mask: radial-gradient(circle, transparent 30%, rgba(0, 0, 0, .9) 38%, transparent 60%);
  mask: radial-gradient(circle, transparent 30%, rgba(0, 0, 0, .9) 38%, transparent 60%);
  animation: spin 160s linear infinite;
}
.moon__ring { position: absolute; inset: -5%; border-radius: 50%; border: 1px solid rgba(246, 228, 172, .42); box-shadow: 0 0 0 11px rgba(246, 228, 172, .035), 0 0 0 12px rgba(246, 228, 172, .16); }
.moon__disc { position: relative; display: block; width: 100%; height: 100%; filter: drop-shadow(0 0 30px rgba(255, 210, 110, .5)); }

.cloud { position: absolute; overflow: visible; pointer-events: none; }
.cloud--a { left: -40%; bottom: -3%; width: 80%; animation: drift 38s ease-in-out infinite alternate; }
.cloud--b { left: -190px; top: 6%; width: clamp(220px, 23vw, 330px); opacity: .9; animation: drift 52s ease-in-out -12s infinite alternate-reverse; }
.cloud--c { right: -90px; top: 60%; width: clamp(200px, 24vw, 350px); opacity: .95; animation: drift 44s ease-in-out -20s infinite alternate; }
.cloud--d { left: 47%; top: 77%; width: clamp(160px, 17vw, 250px); opacity: .8; animation: drift 58s ease-in-out -30s infinite alternate-reverse; }

.branch { position: absolute; right: 0; top: 44px; width: clamp(330px, 46vw, 660px); height: auto; overflow: visible; pointer-events: none; }
.hang__swing { transform-box: fill-box; transform-origin: 50% 0; animation: swing 5.6s ease-in-out infinite alternate; }
.hang--b .hang__swing { animation-duration: 6.9s; animation-delay: -2.4s; }

.petals { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.petal { position: absolute; left: var(--x); top: -20px; width: calc(11px * var(--s)); opacity: 0; animation: fall var(--d) linear var(--delay) infinite; }
.petal svg { display: block; width: 100%; animation: tumble calc(var(--d) / 4) ease-in-out infinite alternate; }

.lanterns { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.lantern {
  position: absolute; left: var(--x); bottom: -90px;
  width: calc(40px * var(--s)); opacity: 0;
  animation: rise var(--d) linear var(--delay) infinite;
}
.lantern svg { display: block; width: 100%; overflow: visible; animation: sway calc(var(--d) / 7) ease-in-out infinite alternate; }

.hills { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: clamp(150px, 20vw, 290px); display: block; }

.hero__inner { position: relative; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 14px; margin: 0 0 30px;
  font-size: .8125rem; letter-spacing: .32em; color: var(--moon-300);
}
.hero__eyebrow i { width: 38px; height: 1px; background: currentColor; opacity: .6; }
.hero__title {
  margin: 0;
  font: 900 var(--fs-hero)/1.17 var(--font-serif);
  letter-spacing: .025em;
  color: var(--moon-50);
  text-shadow: 0 2px 30px rgba(3, 8, 24, .5);
}
.hero__line { display: block; }
.hero__line--gold { color: var(--moon-300); }
.hero__stamp {
  display: inline-block; vertical-align: .34em; margin-left: .1em; padding: .44em .42em .4em;
  border-radius: 5px; transform: rotate(-5deg);
  background: var(--zhu-500); color: var(--paper-50);
  font: 600 max(.19em, 11px)/1.22 var(--font-serif); letter-spacing: .08em; text-shadow: none;
  box-shadow: inset 0 0 0 1.5px rgba(251, 246, 235, .55), 0 6px 18px -6px rgba(204, 53, 38, .7);
}
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .foil {
    background: linear-gradient(100deg, #c08a2e 0%, #f6e4ac 18%, #fffbe6 30%, #e9c46a 46%, #b8822c 62%, #f6e4ac 80%, #d9a441 100%);
    background-size: 240% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    text-shadow: none;
    filter: drop-shadow(0 3px 14px rgba(3, 8, 24, .55));
    animation: foil 8s ease-in-out infinite alternate;
  }
}
.hero__lede { max-width: 29em; margin: 22px 0 0; font-size: 1.0625rem; line-height: 2; color: var(--night-200); }
.hero__promo {
  display: inline-flex; align-items: center; gap: 12px; max-width: 100%;
  margin: 22px 0 0; padding: 7px 18px 7px 7px; border-radius: 999px;
  background: rgba(7, 17, 46, .55); box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .42);
  font-size: .9375rem; line-height: 1.5; color: var(--moon-100);
}
.hero__promo b {
  flex: none; padding: 5px 13px; border-radius: 999px;
  background: linear-gradient(180deg, #d9432f 0%, #a52018 100%); color: var(--paper-50);
  font: 600 .8125rem/1.4 var(--font-serif); letter-spacing: .14em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .25);
}
.hero__promo i { font-style: normal; font-family: var(--font-num); font-weight: 600; color: var(--moon-300); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.hero__meta {
  display: flex; flex-wrap: wrap; gap: 14px 40px;
  max-width: 48em; margin: 30px 0 0; padding-top: 18px;
  border-top: 1px solid rgba(239, 210, 129, .2);
}
.hero__meta dt { font-size: .75rem; letter-spacing: .26em; color: var(--night-400); }
.hero__meta dd { margin: 4px 0 0; font-size: .9375rem; color: var(--moon-100); }
.hero__meta b { font-family: var(--font-num); font-weight: 600; color: var(--moon-300); }
.hero__side {
  position: absolute; right: 20px; bottom: 38%; margin: 0;
  writing-mode: vertical-rl; letter-spacing: .55em;
  font: 400 .75rem var(--font-serif); color: rgba(239, 210, 129, .55);
}

/* ───────── letter ───────── */
.letter {
  position: relative;
  padding: clamp(36px, 5vw, 72px) 0 clamp(84px, 10vw, 150px);
  background:
    radial-gradient(ellipse 46% 42% at 6% 34%, rgba(38, 84, 170, .3), transparent 72%),
    radial-gradient(ellipse 40% 34% at 100% 78%, rgba(230, 186, 90, .09), transparent 72%),
    linear-gradient(180deg, var(--night-900) 0%, var(--night-950) 70%);
}
.letter__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(36px, 6vw, 96px); align-items: start;
}
.vows { position: sticky; top: 48px; padding-top: 8px; }
.vows__title { margin: 0; font: 900 var(--fs-xl)/1.28 var(--font-serif); letter-spacing: .03em; color: var(--moon-50); }
.vows__lede { max-width: 22em; margin: 20px 0 0; color: var(--night-300); }
.vows__list { list-style: none; display: flex; gap: clamp(10px, 1.5vw, 18px); margin: 40px 0 0; padding: 0; }
.vow {
  position: relative;
  writing-mode: vertical-rl;
  min-height: 336px; padding: 58px 15px 26px;
  border-radius: 3px;
  background: linear-gradient(180deg, rgba(32, 58, 112, .92) 0%, rgba(13, 31, 69, .5) 100%);
  border-top: 5px solid #d9a441; border-bottom: 5px solid #d9a441;
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .34), 0 24px 40px -24px rgba(0, 0, 0, .7);
}
.vow::before {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  writing-mode: horizontal-tb;
  display: grid; place-items: center; width: 26px; height: 26px; border-radius: 3px;
  background: var(--zhu-500); color: var(--paper-50);
  font: 600 .8125rem/1 var(--font-serif);
}
.vow:nth-child(1)::before { content: "壹"; }
.vow:nth-child(2)::before { content: "贰"; }
.vow:nth-child(3)::before { content: "叁"; }
.vow::after {
  content: ""; position: absolute; left: 50%; bottom: -31px; width: 9px; height: 26px; margin-left: -4.5px;
  background: linear-gradient(var(--moon-400), var(--moon-400)) center top / 1.5px 14px no-repeat, linear-gradient(135deg, var(--zhu-400), var(--zhu-600)) center bottom / 9px 12px no-repeat;
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 78%, 50% 100%, 0 78%); clip-path: polygon(0 0, 100% 0, 100% 78%, 50% 100%, 0 78%);
}
.vow strong {
  display: block;
  font: 900 clamp(2rem, 1.3rem + 1.7vw, 2.7rem)/1.12 var(--font-serif);
  letter-spacing: .24em; color: var(--moon-200);
}
.vow span {
  display: block; margin-right: 13px;
  font-size: .875rem; line-height: 1.55; letter-spacing: .26em; color: var(--night-200);
}

.paper-stack { position: relative; margin-top: clamp(-150px, -9vw, -48px); }
.paper-stack::before {
  content: ""; position: absolute; inset: 0; border-radius: 5px;
  background: var(--paper-200); transform: rotate(2.1deg) translate(12px, 8px);
  box-shadow: 0 40px 70px -34px rgba(0, 0, 0, .75);
}
.paper__sprig { position: absolute !important; left: -4px; bottom: 22px; width: clamp(120px, 15vw, 186px); pointer-events: none; }
.paper {
  position: relative;
  padding: clamp(34px, 5vw, 68px) clamp(26px, 5.4vw, 74px) clamp(30px, 4vw, 54px);
  border-radius: 5px;
  background: var(--paper-50); color: var(--ink-900);
  box-shadow: 0 50px 90px -36px rgba(0, 0, 0, .75), 0 0 0 1px rgba(222, 203, 169, .55);
  transform: rotate(-.7deg);
}
.paper::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background-image: var(--grain); opacity: .5; mix-blend-mode: multiply;
}
.paper::after {
  content: ""; position: absolute; inset: 13px; border-radius: 2px; pointer-events: none;
  border: 1px solid rgba(204, 53, 38, .38);
}
.paper > * { position: relative; }
.paper__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 1.6rem; }
.paper__title { margin: 0; font: 400 clamp(2.8rem, 2rem + 3vw, 4rem)/1 var(--font-brush); letter-spacing: .1em; color: var(--ink-900); }
.paper__orn { flex: none; width: clamp(84px, 10vw, 124px); opacity: .85; }
.paper__body {
  --lh: 2.375rem;
  font: 400 1.0625rem/var(--lh) var(--font-serif);
  background-image: linear-gradient(to bottom, transparent calc(var(--lh) - 1px), rgba(204, 53, 38, .2) calc(var(--lh) - 1px));
  background-size: 100% var(--lh);
  background-position: 0 -.42rem;
}
.paper__body p { margin: 0; text-indent: 2em; text-align: justify; line-break: strict; }
.paper__body .paper__to { text-indent: 0; font-weight: 600; }
.paper__body strong { font-weight: 900; color: var(--zhu-600); }
.paper__sign { display: flex; justify-content: flex-end; align-items: center; gap: 20px; margin-top: 2.4rem; text-align: right; }
.paper__from { margin: 0; font: 400 2rem/1.2 var(--font-brush); letter-spacing: .06em; }
.paper__from span { margin-left: .25em; font-size: 1.4rem; }
.paper__date { margin: 8px 0 0; font: 400 .875rem var(--font-serif); letter-spacing: .14em; color: var(--ink-500); }
.seal { flex: none; width: 68px; height: 68px; transform: rotate(-6deg); mix-blend-mode: multiply; opacity: .93; }

/* ───────── draw ───────── */
.draw { position: relative; isolation: isolate; padding: clamp(40px, 6vw, 80px) 0 clamp(72px, 9vw, 130px); }
.draw::before, .prizes::before {
  content: ""; position: absolute; z-index: -1; inset: 0 0 auto auto; width: min(62%, 900px); height: 520px; pointer-events: none;
  background-image: var(--seigaiha); background-size: 80px 40px; opacity: .2;
  -webkit-mask: radial-gradient(ellipse 100% 100% at 100% 0%, #000 0%, transparent 70%);
  mask: radial-gradient(ellipse 100% 100% at 100% 0%, #000 0%, transparent 70%);
}
.prizes::before { inset: 0 auto auto 0; -webkit-mask: radial-gradient(ellipse 100% 100% at 0% 0%, #000 0%, transparent 70%); mask: radial-gradient(ellipse 100% 100% at 0% 0%, #000 0%, transparent 70%); }
.draw__grid {
  display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 80px); align-items: start;
}
.draw__head { margin-bottom: clamp(28px, 3.4vw, 44px); }

.ticker {
  display: flex; align-items: center; gap: 14px;
  width: fit-content; max-width: 100%; height: 40px; margin-top: 28px; padding-right: 20px;
  border-radius: 999px; overflow: hidden;
  background: rgba(13, 31, 69, .75);
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .2);
  font-size: .875rem;
}
.ticker[hidden] { display: none; }
.ticker__label {
  flex: none; display: inline-flex; align-items: center; height: 100%; padding: 0 16px 0 18px;
  background: rgba(230, 186, 90, .16); color: var(--moon-300);
  font-size: .75rem; letter-spacing: .22em;
}
.ticker__view { flex: 1; min-width: 0; height: 40px; overflow: hidden; }
.ticker__list { list-style: none; margin: 0; padding: 0; transition: transform .7s var(--ease-out); }
.ticker__list.no-anim { transition: none; }
.ticker__list li { height: 40px; line-height: 40px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--night-200); }
.ticker__list b { font-weight: 600; color: var(--moon-200); }

/* 资格券 */
.ticket {
  position: relative; border-radius: 16px;
  background: var(--paper-50); color: var(--ink-900);
  box-shadow: 0 34px 64px -30px rgba(0, 0, 0, .8);
}
.ticket.is-shake { animation: shake .5s var(--ease-out); }
.ticket__main { position: relative; padding: 26px 26px 22px; border-radius: 16px 16px 0 0; overflow: hidden; }
.ticket__main::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: var(--grain); opacity: .4; mix-blend-mode: multiply;
}
.ticket__main > * { position: relative; }
.ticket__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.ticket__kicker { margin: 0 0 8px; font: 500 .6875rem/1 var(--font-sans); letter-spacing: .22em; color: var(--ink-500); }
.ticket__kicker span { font-family: var(--font-num); letter-spacing: .08em; }
.ticket h3 { margin: 0; font: 900 1.55rem/1.1 var(--font-serif); letter-spacing: .04em; }
.ticket__user {
  max-width: 52%; margin: 2px 0 0; text-align: right;
  font-size: .8125rem; color: var(--ink-500);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.conds { list-style: none; display: grid; gap: 18px; margin: 24px 0 0; padding: 0; }
.cond__row { display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 10px; }
.cond__mark { position: relative; width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--ink-400); transition: background-color .3s, border-color .3s; }
.cond[data-ok="true"] .cond__mark { background: var(--jade-500); border-color: var(--jade-500); }
.cond[data-ok="true"] .cond__mark::after {
  content: ""; position: absolute; left: 6px; top: 2.5px; width: 5px; height: 9px;
  border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(42deg);
}
.cond[data-ok="false"] .cond__mark { border-color: var(--zhu-500); }
.cond[data-ok="false"] .cond__mark::after {
  content: ""; position: absolute; left: 4px; right: 4px; top: 50%; height: 2px; margin-top: -1px;
  border-radius: 1px; background: var(--zhu-500);
}
.cond__label { font-size: .9375rem; color: var(--ink-700); }
.cond__value { text-align: right; line-height: 1.2; }
.cond__value b {
  display: block;
  font: 700 1.4rem/1 var(--font-num); font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink-900);
}
.cond__value i { font-style: normal; font-size: .75rem; color: var(--ink-500); }
.meter { height: 6px; margin: 10px 0 0 32px; border-radius: 3px; overflow: hidden; background: rgba(23, 31, 46, .1); }
.meter span {
  display: block; height: 100%; border-radius: inherit;
  transform-origin: left center; transform: scaleX(var(--p, 0));
  transition: transform 1.1s var(--ease-out);
  background: linear-gradient(90deg, var(--jade-400), var(--jade-600));
}
.cond[data-ok="false"] .meter span { background: linear-gradient(90deg, #e9a15a, var(--zhu-500)); }
.cond__note { margin: 7px 0 0 32px; font-size: .8125rem; color: var(--zhu-600); }
.cond__note:empty { display: none; }

.ticket__extra {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px;
  margin: 20px 0 0; padding-top: 14px;
  border-top: 1px solid rgba(23, 31, 46, .1);
  font-size: .8125rem; color: var(--ink-500);
}
.ticket__extra[hidden] { display: none; }
.ticket__extra b { font: 600 .9375rem var(--font-num); font-variant-numeric: lining-nums tabular-nums; color: var(--ink-900); }
.ticket__extra em { font-style: normal; font-family: var(--font-serif); color: var(--moon-700); }

.ticket__stub {
  position: relative; display: flex; align-items: center; gap: 18px;
  padding: 20px 26px 24px;
  border-top: 2px dashed rgba(23, 31, 46, .24);
  border-radius: 0 0 16px 16px;
  background: var(--paper-100);
}
.ticket__stub::before, .ticket__stub::after {
  content: ""; position: absolute; top: -12px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--night-950);
}
.ticket__stub::before { left: -11px; }
.ticket__stub::after { right: -11px; }
.stamp {
  flex: none; width: 96px; height: 96px;
  color: var(--ink-400); transform: rotate(-12deg);
  mix-blend-mode: multiply; opacity: .92;
}
.stamp text { font-family: var(--font-serif); }
.stamp.is-stamping { animation: stamp .55s var(--ease-out) both; }
.ticket[data-state="eligible"] .stamp { color: var(--zhu-500); }
.ticket[data-state="used"] .stamp, .ticket[data-state="waiting"] .stamp, .ticket[data-state="blocked"] .stamp { color: var(--moon-700); }
.ticket__cta { flex: 1; min-width: 0; }
.ticket__verdict { margin: 0; font: 600 1rem/1.4 var(--font-serif); color: var(--ink-900); }
.ticket__chances { margin: 2px 0 0; font-size: .8125rem; color: var(--ink-500); }
.ticket__chances:empty { display: none; }
.ticket__chances b { font: 700 1.05rem var(--font-num); color: var(--zhu-600); margin: 0 2px; }
.ticket__cta .btn { margin-top: 12px; }
.ticket__cta .btn[hidden] { display: none; }

/* 加载骨架 */
.ticket[data-state="loading"] .cond__value b,
.ticket[data-state="loading"] .ticket__user {
  color: transparent; border-radius: 4px;
  background: linear-gradient(90deg, rgba(23, 31, 46, .08) 25%, rgba(23, 31, 46, .16) 50%, rgba(23, 31, 46, .08) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}
.ticket[data-state="loading"] .cond__value b { min-width: 72px; }

/* 我的奖品 */
.records {
  position: relative; margin-top: 26px; padding: 36px 40px 18px; border-radius: 6px;
  background: linear-gradient(160deg, rgba(20, 42, 92, .78), rgba(9, 22, 54, .78));
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .16), 0 30px 60px -36px rgba(0, 0, 0, .8);
}
.records::before {
  content: ""; position: absolute; inset: 5px; pointer-events: none;
  border: 30px solid transparent; border-image: var(--fret) 30 / 30px stretch; opacity: .8;
}
.records__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.records__head h3 { margin: 0; font: 900 1.25rem/1.2 var(--font-serif); letter-spacing: .04em; color: var(--moon-50); }
.records__count { font-size: .8125rem; color: var(--night-400); }
.records__list { list-style: none; margin: 12px 0 0; padding: 0; }
.records__list:empty { display: none; }
.records__empty { margin: 12px 0 14px; font-size: .875rem; line-height: 1.8; color: var(--night-300); }
.records__empty[hidden] { display: none; }

.record {
  display: grid; grid-template-columns: 42px minmax(0, 1fr); column-gap: 14px;
  padding: 16px 0; border-top: 1px solid rgba(239, 210, 129, .13);
}
.record.is-new { animation: record-in .8s var(--ease-out) both; }
.record__icon { grid-row: 1 / span 2; width: 42px; height: 42px; }
.record__icon svg { display: block; width: 100%; height: 100%; }
.record__name { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin: 0; font: 600 1rem/1.35 var(--font-serif); color: var(--moon-100); }
.record__name .num { font-family: var(--font-num); font-weight: 700; font-size: 1.1em; }
.record__time { margin: 0; font-size: .75rem; color: var(--night-400); }
.record__code { grid-column: 2; display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.record__code code {
  flex: 1; min-width: 0; padding: 8px 12px; border-radius: 8px;
  font: 500 .8125rem/1.4 var(--font-mono); letter-spacing: .05em; color: var(--moon-200);
  background: rgba(4, 10, 30, .65); border: 1px dashed rgba(239, 210, 129, .38);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  -webkit-user-select: all; user-select: all;
}
.chip-btn {
  flex: none; min-height: 36px; padding: 0 14px; border: 0; border-radius: 8px; cursor: pointer;
  font: 600 .8125rem/1 var(--font-sans); letter-spacing: .06em; color: var(--moon-200);
  background: rgba(239, 210, 129, .12); box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .3);
  transition: background-color .15s;
}
.chip-btn:hover { background: rgba(239, 210, 129, .22); }
.chip-btn--solid { color: #2a1804; background: var(--moon-300); box-shadow: none; }
.chip-btn--solid:hover { background: var(--moon-200); }

.badge { padding: 3px 9px; border-radius: 999px; font: 500 .6875rem/1.4 var(--font-sans); letter-spacing: .08em; }
.badge--todo { background: rgba(232, 83, 57, .2); color: #ffb9a8; }
.badge--wait { background: rgba(230, 186, 90, .17); color: var(--moon-300); }
.badge--done { background: rgba(78, 194, 162, .17); color: var(--jade-300); }

.record__ship { grid-column: 2; margin-top: 10px; font-size: .875rem; color: var(--night-200); }
.record__ship p { margin: 0 0 10px; line-height: 1.7; color: var(--night-300); }
.record__ship dl { display: grid; grid-template-columns: 3.6em minmax(0, 1fr); gap: 4px 10px; margin: 0 0 12px; }
.record__ship dt { color: var(--night-400); }
.record__ship dd { margin: 0; overflow-wrap: anywhere; color: var(--night-100); }
.record__ship .track { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.record__ship .track code { font: 500 .8125rem var(--font-mono); color: var(--moon-200); }

/* 转盘 */
.draw__stage { position: relative; display: flex; flex-direction: column; align-items: center; padding-top: 4px; }
/* 转盘 + 鹈鹕骑手：宽度同时受视口高度约束，保证“转盘 + 骑手”一屏看全 */
.wheelset { position: relative; width: min(100%, 580px, max(330px, 56vh)); margin: 10px auto 0; }
.wheel {
  position: relative; width: 100%; aspect-ratio: 1; margin: 0;
  -webkit-user-select: none; user-select: none;
}
.rider {
  position: relative; z-index: 5; display: block; width: 100%; height: auto; margin-top: -11.7%;
  overflow: visible; pointer-events: none;
}
.rd-lamp { transform-box: fill-box; transform-origin: 50% 0; animation: swing 2.6s ease-in-out infinite alternate; }
.rd-scarf { transform-box: fill-box; transform-origin: 100% 40%; animation: flutter 1.1s ease-in-out infinite alternate; }
#rdBanner { transform-box: fill-box; transform-origin: 100% 50%; animation: wave 2.2s ease-in-out infinite alternate; }
.wheel__rays {
  position: absolute; inset: -34%; border-radius: 50%; pointer-events: none;
  background: repeating-conic-gradient(from 0deg, rgba(246, 228, 172, .17) 0deg 5deg, transparent 5deg 18deg);
  -webkit-mask: radial-gradient(circle, #000 34%, transparent 66%);
  mask: radial-gradient(circle, #000 34%, transparent 66%);
  animation: spin 90s linear infinite;
}
.wheel[data-spinning="true"] .wheel__rays { animation-duration: 14s; }
.sparkles { position: absolute; inset: 0; pointer-events: none; z-index: 4; }
.wheel__glow {
  position: absolute; inset: -24%; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(230, 186, 90, .24) 0%, rgba(230, 186, 90, .09) 42%, transparent 66%);
  animation: breathe 5.5s ease-in-out infinite;
}
.wheel__rim, .wheel__disc, .wheel__disc svg { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.wheel__rim { filter: drop-shadow(0 28px 34px rgba(0, 0, 0, .6)); }
.wheel__disc { will-change: transform; }
.wheel__pointer {
  position: absolute; z-index: 3; left: 50%; top: -2.6%; width: 10%; margin-left: -5%;
  transform-origin: 50% 32.5%;
  filter: drop-shadow(0 4px 5px rgba(0, 0, 0, .5));
}
.wheel__pointer svg { display: block; width: 100%; overflow: visible; }

.bulb { fill: url(#gBulb); }
.bulb--a { animation: blink 1.4s steps(1, end) infinite; }
.bulb--b { animation: blink 1.4s steps(1, end) -.7s infinite; }
.wheel[data-spinning="true"] .bulb--a, .wheel[data-spinning="true"] .bulb--b { animation-duration: .36s; }
.wheel[data-spinning="true"] .bulb--b { animation-delay: -.18s; }
.wheel.is-won .bulb--a, .wheel.is-won .bulb--b { animation: blink-all .32s steps(1, end) 8; }

.w-amt { font-family: var(--font-num); font-weight: 700; font-variant-numeric: lining-nums; }
.w-yen { font-family: var(--font-num); font-weight: 600; }
.w-label { font-family: var(--font-sans); font-weight: 500; }
.w-cake { font-family: var(--font-serif); font-weight: 900; }
.w-win { opacity: 0; pointer-events: none; }
.w-win.is-on { animation: win-pulse .9s ease-in-out 4; }

.hub {
  position: absolute; z-index: 2; left: 35%; top: 35%; width: 30%; height: 30%;
  padding: 0; border: 0; border-radius: 50%; background: none; cursor: pointer;
  filter: drop-shadow(0 8px 10px rgba(0, 0, 0, .55));
  transition: transform .28s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}
.hub::after {
  content: ""; position: absolute; inset: 2%; border-radius: 50%; pointer-events: none;
  border: 2px solid rgba(251, 237, 184, .75); opacity: 0;
}
.hub[data-ready="true"]::after { animation: ping 2.6s var(--ease-out) infinite; }
.hub:hover { transform: scale(1.045); }
.hub:active { transform: scale(.965); }
.hub[aria-disabled="true"] { cursor: default; transform: none; }
.hub:focus-visible { outline-offset: 6px; border-radius: 50%; }
.hub__cake { position: absolute; inset: 0; width: 100%; height: 100%; display: block; overflow: visible; }
.hub-char { font-family: var(--font-serif); font-weight: 900; }

/* 抽奖信息条：今日剩余 / 下次开抽 / 开抽时间 */
.drawinfo {
  position: relative; display: grid; grid-template-columns: .8fr 1.25fr 1.1fr;
  width: min(100%, 610px); margin: 22px 0 0; padding: 18px 6px;
  border-radius: 6px;
  background: linear-gradient(160deg, rgba(22, 46, 100, .82), rgba(9, 22, 54, .82));
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .24), 0 26px 50px -30px rgba(0, 0, 0, .8);
}
.drawinfo > div { min-width: 0; padding: 0 14px; text-align: center; }
.drawinfo > div + div { border-left: 1px solid rgba(239, 210, 129, .18); }
.drawinfo dt { font-size: .75rem; letter-spacing: .24em; color: var(--night-300); }
.drawinfo dd { margin: 8px 0 0; }
.drawinfo dd b { font: 700 1.375rem/1.2 var(--font-num); font-variant-numeric: lining-nums tabular-nums; letter-spacing: .01em; color: var(--moon-100); }
.drawinfo dd i { margin-left: 4px; font-style: normal; font-size: .8125rem; color: var(--night-300); }
.drawinfo dd span { display: block; margin-top: 4px; font-size: .8125rem; font-variant-numeric: tabular-nums; color: var(--moon-300); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.drawinfo dd b span, .drawinfo dd span span { display: inline; margin: 0; font-size: inherit; color: inherit; }
.drawinfo .sep { font-style: normal; }
.drawinfo #infoChances { font-size: 1.9rem; color: var(--moon-200); }
.drawinfo[data-state="eligible"] #infoNext { color: var(--jade-300); }
.drawinfo[data-state="used"] #infoChances, .drawinfo[data-state="ineligible"] #infoChances { color: var(--night-300); }

.stage__foot {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 18px;
  width: min(100%, 610px); margin-top: clamp(20px, 3vw, 30px);
}
.hint { display: flex; align-items: flex-start; gap: 10px; margin: 0; font: 400 .875rem/1.8 var(--font-serif); color: var(--night-300); }
.hint svg { flex: none; width: 18px; height: 18px; margin-top: 4px; }
.hint b { font-weight: 600; color: var(--moon-300); }
.sound {
  flex: none; display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 14px;
  border: 0; border-radius: 999px; cursor: pointer; white-space: nowrap;
  font-size: .75rem; letter-spacing: .08em; color: var(--night-300);
  background: transparent; box-shadow: inset 0 0 0 1px rgba(151, 173, 199, .3);
  transition: color .2s, box-shadow .2s;
}
.sound:hover { color: var(--moon-200); box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .5); }
.sound svg { width: 16px; height: 16px; }
.sound[aria-pressed="true"] { color: var(--moon-200); }
.sound[aria-pressed="true"] .sound__mute, .sound[aria-pressed="false"] .sound__wave { display: none; }

/* ───────── prizes ───────── */
.prizes { padding: clamp(40px, 6vw, 80px) 0 clamp(72px, 9vw, 120px); }
.orbit { position: relative; }
.orbit__path { position: absolute; left: 3%; top: 56px; width: 94%; height: calc(100% - 150px); overflow: visible; }
.phases {
  position: relative; list-style: none; display: grid; grid-template-columns: repeat(var(--n, 5), minmax(0, 1fr)); align-items: end; gap: 6px;
  margin: 0; padding: clamp(96px, 11vw, 140px) 0 0;
}
.phase { display: flex; flex-direction: column; align-items: center; text-align: center; transform: translateY(calc(var(--t) * -72px)); }
.phase svg { display: block; width: calc(46px + var(--t) * 36px); height: auto; overflow: visible; }
.phase:last-child svg { filter: drop-shadow(0 0 16px rgba(251, 237, 184, .6)); }
.phase__amt { display: block; margin-top: 16px; font: 700 clamp(1.15rem, .8rem + 1vw, 1.6rem)/1 var(--font-num); font-variant-numeric: lining-nums; color: var(--moon-100); }
.phase__amt small { margin-right: 1px; font-size: .62em; font-weight: 600; color: var(--moon-400); }
.phase__label { display: block; margin-top: 7px; font-size: .75rem; letter-spacing: .2em; color: var(--night-400); }

.cakebox {
  position: relative; display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); align-items: center;
  gap: clamp(24px, 5vw, 72px);
  margin-top: clamp(56px, 8vw, 100px); padding: clamp(28px, 4.4vw, 56px) clamp(24px, 5vw, 72px);
  border-radius: 20px;
  background: radial-gradient(ellipse 70% 120% at 12% 50%, #9c1c15 0%, transparent 70%), linear-gradient(135deg, #7c1310 0%, #4a0808 100%);
  box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .4), 0 44px 80px -44px rgba(0, 0, 0, .9);
}
.cakebox::before {
  content: ""; position: absolute; inset: 9px; pointer-events: none;
  border: 30px solid transparent; border-image: var(--fret) 30 / 30px stretch;
}
.cakebox::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: repeating-conic-gradient(from 0deg at 18% 50%, rgba(246, 228, 172, .07) 0deg 4deg, transparent 4deg 14deg);
  -webkit-mask: radial-gradient(circle at 18% 50%, #000 0%, transparent 46%); mask: radial-gradient(circle at 18% 50%, #000 0%, transparent 46%);
}
.cakebox > * { position: relative; z-index: 1; }
.cakebox__art { position: relative; }
.cakebox__art svg { display: block; overflow: visible; filter: drop-shadow(0 20px 22px rgba(0, 0, 0, .5)); }
.cakebox__main { position: relative; width: 100%; max-width: 270px; margin-inline: auto; }
.cakebox__mini { position: absolute; width: 44%; }
.cakebox__mini--a { left: -7%; bottom: -9%; transform: rotate(-14deg); }
.cakebox__mini--b { right: -3%; top: -8%; width: 36%; transform: rotate(18deg); }
.cakebox__kicker { margin: 0 0 12px; font-size: .75rem; letter-spacing: .32em; color: var(--moon-300); }
.cakebox h3 { margin: 0; font: 900 var(--fs-lg)/1.25 var(--font-serif); letter-spacing: .04em; color: var(--moon-50); }
.cakebox__text > p:not(.cakebox__kicker) { max-width: 32em; margin: 14px 0 0; color: #f4d8cd; }
.cakebox__facts { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 10px; margin: 22px 0 0; padding: 0; }
.cakebox__facts li { padding: 5px 14px; border-radius: 999px; font-size: .8125rem; color: var(--moon-200); box-shadow: inset 0 0 0 1px rgba(239, 210, 129, .42); }
.prizes__note { max-width: 46em; margin: 32px 0 0; font-size: .9375rem; color: var(--night-300); }
.prizes__note a { color: var(--moon-300); text-underline-offset: 4px; }

/* ───────── rules ───────── */
.rules { padding: clamp(40px, 6vw, 80px) 0 clamp(56px, 8vw, 110px); }
.rules__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 88px); align-items: start; }
.rules__list { list-style: none; counter-reset: rule; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(28px, 4vw, 56px); margin: 0; padding: 0; }
.rules__list li { counter-increment: rule; position: relative; padding: 22px 0 24px 50px; border-top: 1px solid rgba(239, 210, 129, .16); }
.rules__list li::before {
  content: counter(rule, decimal-leading-zero); position: absolute; left: 0; top: 21px;
  font: 500 1.125rem/1.5 var(--font-num); font-variant-numeric: lining-nums; color: var(--moon-400);
}
.rules__list h3 { margin: 0; font: 600 1.0625rem/1.5 var(--font-serif); letter-spacing: .04em; color: var(--moon-100); }
.rules__list p { margin: 6px 0 0; font-size: .9375rem; color: var(--night-300); }
.rules__list p span { font-family: var(--font-num); color: var(--night-100); }

/* ───────── footer ───────── */
.footer {
  position: relative; isolation: isolate; overflow: hidden;
  padding: clamp(72px, 10vw, 130px) 0 clamp(250px, 26vw, 330px); text-align: center;
  background: radial-gradient(ellipse 60% 70% at 50% 100%, rgba(230, 186, 90, .2), transparent 72%);
}
.footer__moon {
  position: absolute; z-index: -1; left: 50%; bottom: clamp(-190px, -12vw, -120px); width: clamp(300px, 34vw, 440px); aspect-ratio: 1; transform: translateX(-50%);
  border-radius: 50%; background: radial-gradient(circle at 42% 36%, #fffbe8 0%, #f6e4ac 58%, #e2b95c 100%);
  box-shadow: 0 0 110px 24px rgba(246, 228, 172, .28), 0 0 0 22px rgba(246, 228, 172, .05);
}
.footer__waves { position: absolute; z-index: -1; left: 0; right: 0; bottom: 0; width: 100%; height: clamp(110px, 12vw, 150px); display: block; }
.footer__wish { margin: 0; font: 400 clamp(2.1rem, 1.4rem + 3vw, 3.6rem)/1.35 var(--font-brush); letter-spacing: .06em; color: var(--moon-200); }
.footer__meta { margin: 30px 0 0; font-size: .8125rem; letter-spacing: .14em; color: var(--night-400); }

/* ───────── sheets (dialog) ───────── */
.sheet {
  position: fixed; inset: 0; margin: 0; padding: 20px;
  width: 100vw; max-width: none; height: 100vh; height: 100dvh; max-height: none;
  border: 0; background: transparent; color: inherit; overflow: auto;
}
.sheet[open] { display: grid; place-items: center; }
.sheet::backdrop { background: rgba(2, 6, 18, .76); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.sheet[open]::backdrop { animation: fade-in .3s ease-out both; }
.sheet__confetti { position: fixed; inset: 0; z-index: 2; width: 100%; height: 100%; pointer-events: none; }
.sheet__card {
  position: relative; width: min(100%, 448px); padding: 38px 34px 30px; border-radius: 20px;
  background: var(--paper-50); color: var(--ink-900);
  box-shadow: 0 50px 100px -30px rgba(0, 0, 0, .85), 0 0 0 1px rgba(222, 203, 169, .6);
  animation: sheet-in .55s var(--ease-out-expo) both;
}
.sheet__card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background-image: var(--grain); opacity: .4; mix-blend-mode: multiply;
}
.sheet__card > * { position: relative; }
.sheet__close {
  position: absolute !important; right: 12px; top: 12px; z-index: 1;
  display: grid; place-items: center; width: 40px; height: 40px; padding: 0;
  border: 0; border-radius: 50%; cursor: pointer; background: transparent; color: var(--ink-500);
  transition: background-color .15s, color .15s;
}
.sheet__close:hover { background: rgba(23, 31, 46, .08); color: var(--ink-900); }
.sheet__close svg { width: 18px; height: 18px; }

.result { text-align: center; overflow: hidden; }
.result::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 210px; pointer-events: none;
  background: radial-gradient(ellipse 72% 100% at 50% 0%, rgba(230, 186, 90, .4), transparent 72%);
}
.result__art { width: 124px; height: 124px; margin: 0 auto 14px; z-index: 1; animation: art-in .8s var(--ease-out-expo) .12s both; }
.result__art svg { display: block; width: 100%; height: 100%; overflow: visible; }
.result__kicker { margin: 0; z-index: 1; font: 400 1.6rem/1.3 var(--font-brush); letter-spacing: .08em; color: var(--zhu-600); }
.result__prize { margin: 4px 0 0; z-index: 1; font: 900 1.75rem/1.25 var(--font-serif); letter-spacing: .04em; }
.result__prize .num { font: 700 3.3rem/1 var(--font-num); font-variant-numeric: lining-nums; letter-spacing: 0; }
.result__prize .yen { margin-right: 2px; font: 600 1.7rem/1 var(--font-num); color: var(--moon-700); }
.result__prize small { margin-left: 6px; font-size: 1.25rem; font-weight: 600; }
.result__body { margin-top: 20px; }
.result__body p { margin: 0; font-size: .9375rem; line-height: 1.8; color: var(--ink-700); }
.result__body .tip { margin-top: 12px; font-size: .8125rem; color: var(--ink-500); }
.codebox {
  display: flex; align-items: center; gap: 10px; padding: 6px 6px 6px 16px;
  border-radius: 12px; background: var(--paper-100); border: 1.5px dashed rgba(119, 73, 20, .5);
}
.codebox code {
  flex: 1; min-width: 0; text-align: left; overflow-wrap: anywhere;
  font: 600 1rem/1.4 var(--font-mono); letter-spacing: .07em; color: var(--ink-900);
  -webkit-user-select: all; user-select: all;
}
.codebox .chip-btn { min-height: 40px; color: var(--paper-50); background: var(--ink-900); box-shadow: none; }
.codebox .chip-btn:hover { background: var(--ink-700); }
.result__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 26px; }

.addr__kicker { margin: 0 0 8px; font-size: .75rem; letter-spacing: .28em; color: var(--moon-700); }
.addr h3 { margin: 0; font: 900 1.6rem/1.25 var(--font-serif); letter-spacing: .03em; }
.addr__lede { margin: 8px 0 0; font-size: .875rem; color: var(--ink-500); }
.form { display: grid; gap: 16px; margin-top: 24px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; margin-bottom: 6px; font: 600 .875rem/1.4 var(--font-sans); color: var(--ink-700); }
.field__opt { margin-left: 4px; font-size: .75rem; font-weight: 400; color: var(--ink-500); }
.field input, .field textarea {
  display: block; width: 100%; padding: 11px 14px; border-radius: 10px;
  font: 400 1rem/1.5 var(--font-sans); color: var(--ink-900);
  background: #fffdf7; border: 1px solid rgba(23, 31, 46, .24);
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none; appearance: none;
}
.field textarea { resize: vertical; min-height: 76px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-500); opacity: 1; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--moon-600); box-shadow: 0 0 0 3px rgba(209, 153, 54, .3); }
.field [aria-invalid="true"] { border-color: var(--zhu-500); box-shadow: 0 0 0 3px rgba(204, 53, 38, .14); }
.field__err, .form__err { margin: 6px 0 0; font-size: .8125rem; color: var(--zhu-600); }
.field__err:empty, .form__err:empty { display: none; }
.form__actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

/* ───────── toast ───────── */
.toast {
  position: fixed; z-index: 60; left: 50%; bottom: calc(28px + env(safe-area-inset-bottom, 0px));
  max-width: calc(100vw - 40px); padding: 12px 22px; border-radius: 999px; text-align: center;
  font: 600 .9375rem/1.4 var(--font-sans); color: #2a1804; background: var(--moon-100);
  box-shadow: 0 18px 40px -12px rgba(0, 0, 0, .7);
  opacity: 0; transform: translate(-50%, 18px); pointer-events: none;
  transition: opacity .25s, transform .4s var(--ease-out);
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* ───────── demo panel ───────── */
.demo {
  position: fixed; z-index: 40; left: 16px; bottom: 16px; width: 252px; overflow: hidden;
  border-radius: 14px; background: rgba(4, 10, 30, .94); border: 1px solid rgba(239, 210, 129, .32);
  box-shadow: 0 24px 50px -20px #000;
  font: 400 .8125rem/1.5 var(--font-sans); color: var(--night-100);
}
.demo[hidden] { display: none; }
.cakebox[hidden], #giftBlurb[hidden], #giftRuleItem[hidden] { display: none; }
.demo__toggle {
  display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 10px 14px;
  border: 0; background: rgba(230, 186, 90, .14); cursor: pointer;
  font-weight: 600; letter-spacing: .06em; color: var(--moon-200);
}
.demo__toggle span { padding: 1px 8px; border-radius: 999px; font-size: .6875rem; font-weight: 500; background: var(--zhu-500); color: #fff; }
.demo__body { display: grid; gap: 12px; padding: 14px; }
.demo[data-collapsed="true"] .demo__body { display: none; }
.demo[data-collapsed="true"] { width: auto; }
.demo[data-collapsed="true"] .demo__toggle { gap: 10px; }
.demo fieldset { margin: 0; padding: 0; border: 0; }
.demo legend, .demo__field { padding: 0; font-size: .75rem; color: var(--night-300); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.chips button, .demo__btns button {
  min-height: 30px; padding: 0 10px; border: 0; border-radius: 7px; cursor: pointer;
  font-size: .75rem; color: var(--night-100); background: rgba(151, 173, 199, .16);
}
.chips button[aria-pressed="true"] { background: var(--moon-300); color: #2a1804; font-weight: 600; }
.demo__field { display: grid; gap: 6px; }
.demo select {
  min-height: 32px; padding: 0 8px; border-radius: 7px; border: 1px solid rgba(151, 173, 199, .3);
  font: inherit; color: var(--night-100); background: var(--night-900);
}
.demo__check { display: flex; align-items: center; gap: 8px; font-size: .75rem; color: var(--night-200); cursor: pointer; }
.demo__check input { accent-color: var(--moon-400); }
.demo__btns { display: flex; flex-wrap: wrap; gap: 6px; }

/* ───────── motion ───────── */
.js .reveal { opacity: 0; transform: translateY(30px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .vow { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); transition-delay: calc(.25s + var(--i) * .12s); }
.js .vows.is-in .vow { opacity: 1; transform: none; }
.js [data-rise] { opacity: 0; animation: rise-in 1.1s var(--ease-out) forwards; animation-delay: calc(.2s + var(--i) * .12s); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes flutter { from { transform: rotate(-5deg) skewY(-3deg); } to { transform: rotate(6deg) skewY(4deg); } }
@keyframes wave { from { transform: skewY(-2.5deg) scaleX(.985); } to { transform: skewY(3deg) scaleX(1.01); } }
@keyframes glint { 0%, 100% { opacity: .15; transform: scale(.35) rotate(0deg); } 50% { opacity: 1; transform: scale(1) rotate(45deg); } }
@keyframes swing { from { transform: rotate(-4.5deg); } to { transform: rotate(4.5deg); } }
@keyframes foil { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }
@keyframes fall {
  0% { transform: translate3d(0, 0, 0); opacity: 0; }
  8% { opacity: .95; }
  85% { opacity: .9; }
  100% { transform: translate3d(var(--drift), 96vh, 0); opacity: 0; }
}
@keyframes tumble { from { transform: rotate(-40deg) translateX(-8px); } to { transform: rotate(60deg) translateX(8px); } }
@keyframes rise-in { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
@keyframes moonrise { from { opacity: 0; transform: translateY(70px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes breathe { 0%, 100% { opacity: .8; transform: scale(1); } 50% { opacity: 1; transform: scale(1.04); } }
@keyframes twinkle { from { opacity: var(--o); } to { opacity: .12; } }
@keyframes drift { from { transform: translateX(-18px); } to { transform: translateX(26px); } }
@keyframes rise {
  0% { transform: translate3d(0, 0, 0); opacity: 0; }
  10% { opacity: var(--o); }
  82% { opacity: var(--o); }
  100% { transform: translate3d(var(--drift), -112vh, 0); opacity: 0; }
}
@keyframes sway { from { transform: rotate(-4deg) translateX(-5px); } to { transform: rotate(4deg) translateX(5px); } }
@keyframes blink { 0%, 49.9% { opacity: 1; } 50%, 100% { opacity: .22; } }
@keyframes blink-all { 0%, 49.9% { opacity: 1; } 50%, 100% { opacity: .15; } }
@keyframes win-pulse { 0%, 100% { opacity: 0; } 50% { opacity: .3; } }
@keyframes ping { 0% { opacity: .85; transform: scale(1); } 70%, 100% { opacity: 0; transform: scale(1.32); } }
@keyframes stamp { 0% { opacity: 0; transform: rotate(-12deg) scale(1.8); } 55% { opacity: 1; transform: rotate(-12deg) scale(.95); } 100% { opacity: .92; transform: rotate(-12deg) scale(1); } }
@keyframes shake { 0%, 100% { transform: translateX(0); } 20% { transform: translateX(-7px); } 40% { transform: translateX(6px); } 60% { transform: translateX(-4px); } 80% { transform: translateX(2px); } }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
@keyframes record-in { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes sheet-in { from { opacity: 0; transform: translateY(34px) scale(.965); } to { opacity: 1; transform: none; } }
@keyframes sheet-up { from { transform: translateY(100%); } to { transform: none; } }
@keyframes art-in { from { opacity: 0; transform: scale(.6) rotate(-16deg); } to { opacity: 1; transform: none; } }

/* ───────── responsive ───────── */
@media (max-width: 1100px) {
  .draw__grid { grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 36px; }
  .rules__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 880px) {
  .draw__grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .draw__side { display: contents; }
  .draw__head { order: 0; }
  .ticket { order: 1; }
  .draw__stage { order: 2; margin-top: 44px; }
  .records { order: 3; margin-top: 44px; }
}

/* 平板宽度：资格券横向展开，右侧为票根 */
@media (min-width: 640px) and (max-width: 880px) {
  .ticket { display: grid; grid-template-columns: minmax(0, 1fr) 236px; }
  .ticket__main { border-radius: 16px 0 0 16px; }
  .ticket__stub {
    flex-direction: column; justify-content: center; text-align: center;
    border-top: 0; border-left: 2px dashed rgba(23, 31, 46, .24); border-radius: 0 16px 16px 0;
  }
  .ticket__stub::before { left: -12px; top: -11px; }
  .ticket__stub::after { left: -12px; right: auto; top: auto; bottom: -11px; }
}

@media (max-width: 900px) {
  .letter__grid { grid-template-columns: minmax(0, 1fr); }
  .vows { position: static; }
  .vow { min-height: 300px; }
  .paper-stack { margin-top: 0; }
  .paper { transform: none; }   /* 窄屏信纸很长，旋转会让边缘出界 */
  .paper-stack::before { transform: rotate(1.2deg) translate(4px, 8px); }
  .hero__side { display: none; }
}

@media (max-width: 820px) {
  .orbit__path { display: none; }
  .phases { display: flex; flex-wrap: wrap; justify-content: center; gap: 34px 0; padding-top: 48px; }   /* 末行不满三个时居中 */
  .phase { flex: 0 0 33.333%; transform: none; }
  .phase svg { width: calc(50px + var(--t) * 20px); }
  .cakebox { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .cakebox__art { width: min(100%, 250px); margin-inline: auto; }
  .cakebox__main { max-width: 210px; }
}

@media (max-width: 760px) {
  .topbar__nav { display: none; }
  .topbar__console { margin-left: auto; }
  .sm-only { display: inline; }
  .hero { align-items: flex-end; padding-top: clamp(318px, 86vw, 400px); min-height: 0; }
  .moon { right: -64px; top: 66px; width: clamp(230px, 64vw, 300px); }
  .cloud--a { left: -34%; bottom: -2%; }
  .cloud--b { top: 92px; left: -120px; }
  .cloud--c, .cloud--d { display: none; }
  .branch { width: 300px; }
  .hero__lede { font-size: 1rem; }
  .hero__promo { align-items: flex-start; border-radius: 18px; padding: 8px 14px 9px 8px; font-size: .875rem; }
  .rules__list { grid-template-columns: minmax(0, 1fr); }
  .stage__foot { flex-direction: column; align-items: stretch; }
  .sound { align-self: flex-start; }
  .demo { left: 10px; bottom: 10px; }
}

@media (max-width: 560px) {
  .sheet { padding: 0; }
  .sheet[open] { place-items: end center; }
  .sheet__card { width: 100%; max-height: 92vh; max-height: 92dvh; overflow-y: auto; padding: 34px 22px calc(26px + env(safe-area-inset-bottom, 0px)); border-radius: 22px 22px 0 0; animation-name: sheet-up; }
  .form__row { grid-template-columns: minmax(0, 1fr); }
  .form__actions .btn { flex: 1; }
  .ticket__main { padding: 22px 20px 20px; }
  .ticket__stub { padding: 18px 20px 22px; gap: 14px; }
  .stamp { width: 84px; height: 84px; }
  .records { padding: 34px 30px 14px; }
  .drawinfo { grid-template-columns: .7fr 1.2fr 1.1fr; padding: 14px 0; }
  .drawinfo > div { padding: 0 8px; }
  .drawinfo dt { letter-spacing: .12em; }
  .drawinfo dd b { font-size: 1.0625rem; }
  .drawinfo #infoChances { font-size: 1.6rem; }
  .drawinfo dd span { font-size: .75rem; white-space: normal; line-height: 1.4; }
  .drawinfo .sep { display: block; height: 0; overflow: hidden; }
  .paper__body { --lh: 2.25rem; font-size: 1rem; }
  .vows__list { justify-content: space-between; gap: 8px; }
  .vow { padding-left: 11px; padding-right: 11px; }  /* 竖排下 inline 轴是纵向，这里必须用物理方向 */
  .vow span { margin-right: 9px; font-size: .8125rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .lantern, .petal { display: none; }
}