/*
 * 贊助頁：外觀框架的「page」元件。
 * 所有值都來自 <html> 上的 CSS 變數與 class（由 appearance.py 產生）：
 *   skin-*（版型） density-* align-* avatar-shape-* pattern-* shadow-* input-style-* button-style-* chip-style-* anim-* deco-on/off
 * 自訂 CSS 可以直接覆寫這些選擇器。
 */
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; min-height: 100vh; padding: var(--outer, 32px) 16px; position: relative;
  isolation: isolate;
  font-family: var(--font); font-size: var(--base-size); line-height: 1.65; color: var(--text);
  background: linear-gradient(160deg, var(--bg), var(--bg2, var(--bg))) fixed;
  display: flex; align-items: center; justify-content: center; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
.density-compact { --gap: 12px; --pad: 24px; --outer: 20px; }
.density-normal { --gap: 18px; --pad: 36px; --outer: 40px; }
.density-airy { --gap: 28px; --pad: 52px; --outer: 64px; }
@keyframes twinkle { 0%, 100% { opacity: 0; transform: scale(.3) rotate(0); } 50% { opacity: 1; transform: scale(1) rotate(45deg); } }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- 背景 ---------- */
.backdrop, .page-deco { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.backdrop::before { content: ""; position: absolute; inset: calc(var(--bg-blur) * -2); background: var(--bg-image) center / cover no-repeat; opacity: var(--bg-image-op); filter: blur(var(--bg-blur)); }
.backdrop::after { content: ""; position: absolute; inset: 0; }
.pattern-halftone .backdrop::after { background: radial-gradient(color-mix(in srgb, var(--line) 22%, transparent) 1.5px, transparent 1.8px) 0 0 / 11px 11px;
  -webkit-mask: radial-gradient(circle at 100% 0, #000, transparent 55%), radial-gradient(circle at 0 100%, #000, transparent 50%);
  mask: radial-gradient(circle at 100% 0, #000, transparent 55%), radial-gradient(circle at 0 100%, #000, transparent 50%); }
.pattern-dots .backdrop::after { background: radial-gradient(color-mix(in srgb, var(--accent) 35%, transparent) 1.4px, transparent 1.6px) 0 0 / 22px 22px; opacity: .6; }
.pattern-grid .backdrop::after { opacity: .5; background: linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 32px 32px, linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 32px 32px;
  -webkit-mask: radial-gradient(ellipse at center, #000 20%, transparent 75%); mask: radial-gradient(ellipse at center, #000 20%, transparent 75%); }
.pattern-lines .backdrop::after { background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--line) 30%, transparent) 0 1px, transparent 1px 14px); }
.pattern-scanlines .backdrop::after { background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .35) 0 1px, transparent 1px 3px), radial-gradient(ellipse at center, transparent 50%, rgba(0, 0, 0, .65)); }
.page-deco i { position: absolute; display: block; }
.deco-off .page-deco { display: none; }

/* ---------- 外框 ---------- */
.shell { width: 100%; max-width: var(--page-w); position: relative; background: var(--surface); border: var(--bw) solid var(--line); border-radius: var(--radius); }
.shadow-soft .shell { box-shadow: 0 30px 70px -24px rgba(0, 0, 0, .3); }
.shadow-lifted .shell { box-shadow: 0 1px 0 rgba(0, 0, 0, .06), 0 14px 32px -12px rgba(0, 0, 0, .22); }
.shadow-hard .shell { box-shadow: 9px 9px 0 var(--line); }
.shadow-glow .shell { box-shadow: 0 0 0 1px var(--accent), 0 0 60px -10px color-mix(in srgb, var(--accent) 60%, transparent); }
.anim-rise .shell { animation: rise .6s cubic-bezier(.2, .8, .2, 1) both; }
.anim-fade .shell { animation: fade .5s ease both; }
.anim-wipe .shell { animation: wipe .7s cubic-bezier(.7, 0, .2, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(20px); } }
@keyframes fade { from { opacity: 0; } }
@keyframes wipe { from { clip-path: polygon(0 0, 0 0, -30% 100%, -30% 100%); } to { clip-path: polygon(0 0, 130% 0, 100% 100%, -30% 100%); } }

/* ---------- 介紹 ---------- */
.intro { padding: var(--pad) var(--pad) 0; display: flex; gap: 18px; align-items: center; }
.align-center .intro { flex-direction: column; text-align: center; }
.avatar { width: 84px; height: 84px; flex: none; display: grid; place-items: center; overflow: hidden; background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  color: var(--accent); font-family: var(--font-head); font-weight: var(--head-weight); font-size: 34px; border: var(--bw) solid var(--line); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-shape-circle .avatar { border-radius: 50%; }
.avatar-shape-rounded .avatar { border-radius: 14px; }
.avatar-shape-square .avatar { border-radius: 0; }
.avatar-shape-hidden .avatar { display: none; }
.intro-text { display: grid; gap: 6px; min-width: 0; }
.align-center .intro-text { justify-items: center; }
.kicker { margin: 0; width: fit-content; font-size: .76em; font-weight: 700; letter-spacing: .18em; color: var(--muted); }
.kicker:empty { display: none; }
.title { margin: 0; font-family: var(--font-head); font-weight: var(--head-weight); font-size: var(--head-size); line-height: 1.12; letter-spacing: var(--tracking); color: var(--text); overflow-wrap: anywhere; }
.subtitle { margin: 0; color: var(--muted); }
.desc { color: var(--muted); white-space: pre-line; }

/* ---------- 表單 ---------- */
.form { padding: var(--pad); display: grid; gap: var(--gap); }
.field { display: grid; gap: 6px; }
.field > label, .label { font-weight: 700; font-size: .88em; }
.input { width: 100%; font: inherit; color: var(--text); background: var(--field); outline: none; caret-color: var(--accent);
  border: max(1px, var(--bw)) solid var(--line); border-radius: min(var(--radius), 12px); padding: .7em .85em; transition: border-color .15s, box-shadow .15s; }
.input::placeholder { color: color-mix(in srgb, var(--muted) 70%, transparent); }
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.input-style-underline .input { border-width: 0 0 max(1px, var(--bw)); border-radius: 0; padding-left: 0; padding-right: 0; background: transparent; }
.input-style-underline .input:focus { box-shadow: 0 2px 0 0 var(--accent); }
.input-style-filled .input { border-color: transparent; }
.input-style-filled .input:focus { border-color: var(--accent); }
textarea.input { resize: vertical; min-height: 5.2em; }
.field.error .input { border-color: #d7263d; }
.amount { position: relative; display: flex; align-items: center; }
.amount .cur { position: absolute; left: .85em; color: var(--muted); font-weight: 700; pointer-events: none; }
.input-style-underline .amount .cur { left: 0; }
.amount .input { padding-left: 3.4em; font-size: 1.3em; font-weight: 800; font-variant-numeric: tabular-nums; }
.input-style-underline .amount .input { padding-left: 2.6em; }
.help { font-size: .82em; color: var(--muted); }
.count { justify-self: end; font-size: .78em; color: var(--muted); font-variant-numeric: tabular-nums; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { font: inherit; font-weight: 800; cursor: pointer; padding: .35em 1em; border-radius: 6px; background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--text);
  border: max(1px, var(--bw)) solid transparent; font-variant-numeric: tabular-nums; transition: transform .12s; }
.chips button:hover { border-color: var(--accent); }
.chips button.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.chip-style-pill .chips button { border-radius: 999px; }
.chip-style-outline .chips button { background: transparent; border-color: var(--line); }
.chip-style-slant .chips button { border-radius: 0; transform: skewX(-14deg); border-color: var(--line); background: var(--surface); }
.chip-style-slant .chips button > * { display: inline-block; }
.chip-style-slant .chips button.on { background: var(--accent); }

.toggles { display: grid; gap: 10px; }
.check { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; font-size: .92em; }
.check input { width: 1.1em; height: 1.1em; margin-top: .25em; accent-color: var(--accent); flex: none; }
.methods { display: grid; gap: 8px; }
.method { display: flex; gap: 10px; align-items: center; cursor: pointer; padding: .65em .9em; border: max(1px, var(--bw)) solid var(--line);
  border-radius: min(var(--radius), 12px); background: var(--field); transition: box-shadow .15s, border-color .15s; }
.method input { accent-color: var(--accent); margin: 0; }
.method:has(input:checked) { border-color: var(--accent); box-shadow: inset 4px 0 0 var(--accent); }
.input-style-underline .method { border-width: 0 0 max(1px, var(--bw)); border-radius: 0; background: transparent; padding-left: 0; }

.submit { font: inherit; font-weight: 900; font-size: 1.05em; letter-spacing: .08em; cursor: pointer; padding: .9em 1.2em; margin-top: 6px; color: var(--on-accent);
  border-radius: min(var(--radius), 12px); border: max(1px, var(--bw)) solid var(--accent); background: var(--accent); transition: transform .12s, box-shadow .12s, filter .12s; }
.submit:hover { filter: brightness(1.07); }
.submit:disabled { opacity: .5; cursor: not-allowed; }
.button-style-outline .submit { background: transparent; color: var(--accent); border-width: 2px; }
.button-style-hard .submit { border: max(2px, var(--bw)) solid var(--line); box-shadow: 5px 5px 0 var(--line); }
.button-style-hard .submit:active { transform: translate(5px, 5px); box-shadow: none; }
.button-style-slant .submit { border: 0; border-radius: 0; clip-path: polygon(14px 0, 100% 0, calc(100% - 14px) 100%, 0 100%); }
.button-style-slant .submit::after { content: "  >>"; letter-spacing: -.1em; }
.button-style-slant .submit:hover { transform: translateX(3px); }

.notice { padding: .65em .9em; border-radius: min(var(--radius), 10px); font-size: .9em; border: 1px solid var(--line); }
.notice.error { border-color: #d7263d; color: #b3122a; background: #fde8eb; }
.notice.info { background: color-mix(in srgb, var(--accent) 9%, transparent); }
.footer { padding: 0 var(--pad) var(--pad); color: var(--muted); font-size: .85em; white-space: pre-line; text-align: center; }

.result { padding: var(--pad); display: grid; gap: 12px; justify-items: center; text-align: center; }
.result .mark { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; font-size: 30px; font-weight: 900; border: 3px solid var(--accent); color: var(--accent); }
.result h2 { margin: 0; font-family: var(--font-head); font-weight: var(--head-weight); }
.result .amount-big { font-size: 1.6em; font-weight: 800; font-variant-numeric: tabular-nums; }
.spinner { width: 34px; height: 34px; border-radius: 50%; border: 3px solid color-mix(in srgb, var(--accent) 20%, transparent); border-top-color: var(--accent); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.link-btn { color: var(--accent); font-weight: 800; text-decoration: underline; text-underline-offset: 4px; }

/* ================================================================ 日系清新（乾淨可愛） */
.skin-anime .page-deco i { border-radius: 50%; }
.skin-anime .page-deco i:nth-child(1) { left: -8vw; top: -10vh; width: 42vw; height: 42vw; background: radial-gradient(circle, color-mix(in srgb, var(--accent) 16%, transparent), transparent 65%); }
.skin-anime .page-deco i:nth-child(2) { right: -10vw; bottom: -14vh; width: 46vw; height: 46vw; background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 65%); }
.skin-anime .page-deco i:nth-child(3), .skin-anime .page-deco i:nth-child(4) { width: 14px; height: 14px; border-radius: 0; background: var(--accent); opacity: .5;
  clip-path: polygon(50% 2%, 62% 36%, 98% 37%, 69% 59%, 80% 94%, 50% 73%, 20% 94%, 31% 59%, 2% 37%, 38% 36%); }
.skin-anime .page-deco i:nth-child(3) { left: 18vw; top: 16vh; }
.skin-anime .page-deco i:nth-child(4) { right: 20vw; bottom: 20vh; width: 10px; height: 10px; background: var(--accent-2); }
.skin-anime .shell { box-shadow: 0 24px 60px -28px rgba(120, 70, 110, .35); }
.skin-anime .avatar { border: 4px solid #fff; box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 35%, transparent); }
.skin-anime .kicker { color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, #fff); border-radius: 99px; padding: .2em 1em; letter-spacing: .2em; }
.skin-anime .title { color: var(--text); }
.skin-anime .title::after { content: ""; display: block; width: 36px; height: 4px; margin: .45em auto 0; border-radius: 99px; background: linear-gradient(90deg, var(--accent) 50%, var(--accent-2) 50%); }
.skin-anime.align-left .title::after { margin-left: 0; }
.skin-anime .field > label, .skin-anime .label { font-weight: 400; color: var(--muted); letter-spacing: .06em; }
.skin-anime .input { border-radius: 14px; border-color: transparent; }
.skin-anime .input:focus { border-color: color-mix(in srgb, var(--accent) 60%, transparent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent); }
.skin-anime .chips button { background: color-mix(in srgb, var(--accent) 9%, #fff); font-weight: 400; }
.skin-anime .method { border-radius: 14px; border-color: transparent; }
.skin-anime .method:has(input:checked) { border-color: color-mix(in srgb, var(--accent) 55%, transparent); box-shadow: none; background: color-mix(in srgb, var(--accent) 6%, #fff); }
.skin-anime .submit { border-radius: 99px; font-weight: 400; letter-spacing: .2em; box-shadow: 0 10px 22px -10px color-mix(in srgb, var(--accent) 80%, transparent); }
.skin-anime .notice.info { border-color: transparent; background: color-mix(in srgb, var(--accent-2) 12%, #fff); }

/* ================================================================ 漫畫 */
.skin-manga .page-deco i:nth-child(1) { inset: -50%; opacity: .18;
  background: repeating-conic-gradient(from 0deg at 50% 50%, transparent 0 3deg, var(--line) 3deg 4deg);
  -webkit-mask: radial-gradient(circle, transparent 22%, #000 62%); mask: radial-gradient(circle, transparent 22%, #000 62%); }
.skin-manga .kicker { color: #fff; background: var(--accent); padding: .45em 1.1em .35em; letter-spacing: .12em;
  clip-path: polygon(0 18%, 14% 0, 30% 14%, 50% 0, 66% 14%, 86% 0, 100% 22%, 92% 50%, 100% 80%, 84% 100%, 64% 86%, 46% 100%, 28% 86%, 10% 100%, 0 76%, 8% 48%); transform: rotate(-4deg); }
.skin-manga .title { -webkit-text-stroke: 1px var(--line); }
.skin-manga .desc { position: relative; margin-top: 10px; padding: .7em 1.1em; color: var(--text); background: var(--surface); border: 3px solid var(--line); border-radius: 26px; }
.skin-manga .desc::before { content: ""; position: absolute; left: 34px; top: -18px; border: 9px solid transparent; border-bottom: 16px solid var(--line); border-top: 0; }
.skin-manga .avatar { box-shadow: 4px 4px 0 var(--line); }
.skin-manga .shell { background: radial-gradient(color-mix(in srgb, var(--line) 7%, transparent) 1.2px, transparent 1.4px) 0 0 / 7px 7px, var(--surface); }
.skin-manga .input { border-radius: 0; background: var(--surface); }
.skin-manga .input:focus { box-shadow: 4px 4px 0 var(--accent); }
.skin-manga .chips button { border: 2px solid var(--line); background: var(--surface); border-radius: 0; }
.skin-manga .chips button.on { background: var(--line); color: #fff; }
.skin-manga .submit { background: var(--accent); color: #fff; }
.skin-manga .method { border-radius: 0; }

/* ================================================================ 夢幻 */
.skin-kawaii .page-deco i { width: 30px; height: 30px; background: var(--accent); clip-path: polygon(50% 2%, 62% 36%, 98% 37%, 69% 59%, 80% 94%, 50% 73%, 20% 94%, 31% 59%, 2% 37%, 38% 36%); opacity: .55; }
.skin-kawaii .page-deco i:nth-child(1) { left: 12vw; top: 14vh; }
.skin-kawaii .page-deco i:nth-child(2) { right: 14vw; top: 22vh; width: 20px; height: 20px; background: var(--accent-2); animation-delay: .6s; }
.skin-kawaii .page-deco i:nth-child(3) { right: 10vw; bottom: 16vh; width: 40px; height: 40px; animation-delay: 1.2s; }
.skin-kawaii .page-deco i:nth-child(4) { left: 16vw; bottom: 12vh; width: 22px; height: 22px; background: var(--accent-2); animation-delay: 1.8s; }
.skin-kawaii .shell { box-shadow: 0 26px 60px -24px color-mix(in srgb, var(--accent) 60%, transparent), inset 0 2px 0 #fff; }
.skin-kawaii .avatar { outline: 2px dashed var(--accent); outline-offset: 5px; background: #fff; }
.skin-kawaii .kicker { color: #fff; background: var(--accent); border-radius: 99px; padding: .2em 1em; letter-spacing: .2em; }
.skin-kawaii .title { color: var(--accent); text-shadow: 0 3px 0 #fff, 0 6px 0 color-mix(in srgb, var(--accent) 25%, transparent); }
.skin-kawaii .input { border-radius: 14px; }
.skin-kawaii .method { border-radius: 16px; }
.skin-kawaii .submit { border: 0; border-radius: 99px; background: linear-gradient(100deg, var(--accent), var(--accent-2)); position: relative; overflow: hidden;
  box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
.skin-kawaii .submit::before { content: ""; position: absolute; left: 10%; right: 10%; top: 4px; height: 38%; border-radius: 99px; background: rgba(255, 255, 255, .35); }

/* ================================================================ 霓虹 */
.skin-cyber .page-deco i:nth-child(1) { left: 0; right: 0; height: 140px; top: -140px; background: linear-gradient(transparent, color-mix(in srgb, var(--accent) 12%, transparent), transparent); animation: scan 6s linear infinite; }
.skin-cyber .page-deco i:nth-child(2) { left: -20vw; top: -20vh; width: 60vw; height: 60vw; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--accent-2) 25%, transparent), transparent 60%); }
.skin-cyber .page-deco i:nth-child(3) { right: -20vw; bottom: -20vh; width: 60vw; height: 60vw; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--accent) 20%, transparent), transparent 60%); }
@keyframes scan { to { top: 100%; } }
.skin-cyber .shell { border: 0; border-radius: 0; clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
  background: linear-gradient(var(--surface), var(--surface)) padding-box, linear-gradient(135deg, var(--accent), transparent 30%, transparent 70%, var(--accent-2)) border-box; border: 1px solid transparent; }
.shadow-glow.skin-cyber .shell { box-shadow: none; filter: drop-shadow(0 0 24px color-mix(in srgb, var(--accent) 35%, transparent)); }
.skin-cyber .kicker { color: var(--accent); font-family: 'JetBrains Mono', var(--font); letter-spacing: .25em; }
.skin-cyber .kicker::before { content: "// "; color: var(--accent-2); }
.skin-cyber .title { text-transform: uppercase; text-shadow: -2px 0 var(--accent-2), 2px 0 var(--accent); }
.skin-cyber .avatar { clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); border-color: var(--accent); }
.skin-cyber .field > label, .skin-cyber .label { color: var(--accent); font-size: .78em; letter-spacing: .2em; }
.skin-cyber .input { border-radius: 0; border-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.skin-cyber .input:focus { box-shadow: 0 0 0 1px var(--accent), 0 0 18px -2px var(--accent); }
.skin-cyber .chips button { border-radius: 0; border-color: color-mix(in srgb, var(--accent) 40%, transparent); background: transparent; }
.skin-cyber .method { border-radius: 0; border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.skin-cyber .submit { font-family: 'Orbitron', var(--font); letter-spacing: .25em; }

/* ================================================================ 終端機 */
.skin-hacker body { text-shadow: 0 0 6px color-mix(in srgb, var(--accent) 45%, transparent); }
.skin-hacker .shell { border-radius: 0; }
.skin-hacker .shell::before { content: "donate@stream: ~"; display: block; padding: .45em 1em; font-size: .82em; color: var(--surface); background: var(--accent); text-shadow: none; }
.skin-hacker .kicker { color: var(--muted); letter-spacing: 0; }
.skin-hacker .kicker::before { content: "$ ./support --to "; }
.skin-hacker .title::before { content: "> "; color: var(--accent); }
.skin-hacker .title::after { content: ""; display: inline-block; width: .5em; height: .9em; margin-left: .2em; vertical-align: -.05em; background: var(--accent); animation: blink 1s steps(1) infinite; }
.skin-hacker .field > label::before, .skin-hacker .label::before { content: "--"; color: var(--muted); margin-right: .3em; }
.skin-hacker .chips button { border-radius: 0; }
.skin-hacker .chips button::before { content: "["; } .skin-hacker .chips button::after { content: "]"; }
.skin-hacker .method { border-radius: 0; }
.skin-hacker .submit { border-radius: 0; text-shadow: inherit; }
.skin-hacker .submit::before { content: "[ "; } .skin-hacker .submit::after { content: " ]"; }
.skin-hacker .submit:hover { background: var(--accent); color: var(--on-accent); }

/* ================================================================ 收據 */
.skin-receipt .shell { border-width: 0; padding-bottom: 14px; }
.skin-receipt .shell::after { content: ""; position: absolute; left: 0; right: 0; bottom: -10px; height: 10px;
  background: linear-gradient(-45deg, transparent 6px, var(--surface) 0) 0 0 / 14px 10px, linear-gradient(45deg, transparent 6px, var(--surface) 0) 0 0 / 14px 10px; }
.skin-receipt .intro { padding-bottom: var(--gap); border-bottom: 2px dashed var(--line); margin: 0 var(--pad); padding-left: 0; padding-right: 0; }
.skin-receipt .kicker { letter-spacing: .4em; }
.skin-receipt .form { gap: 0; }
.skin-receipt .form > * { padding: var(--gap) 0; }
.skin-receipt .form > * + * { border-top: 1px dashed color-mix(in srgb, var(--line) 50%, transparent); }
.skin-receipt .form > .notice { padding: .6em .8em; margin: var(--gap) 0 0; }
.skin-receipt .submit { margin-top: var(--gap); letter-spacing: .3em; }

/* ================================================================ 名片 */
.skin-card .title::after { content: ""; display: block; width: 28px; height: 2px; margin: .5em auto 0; background: var(--accent-2); }

/* ================================================================ 雙欄毛玻璃 */
.donate-feature { display: none; }
.skin-glass .donate-shell {
  display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: 0 clamp(16px, 2vw, 28px);
  grid-template-areas: "feature intro" "feature form" "feature footer";
  background: transparent; border: 0; box-shadow: none;
}
.skin-glass .donate-shell::before {
  content: ""; grid-area: 1 / 2 / -1 / 3; background: var(--surface); border-radius: var(--radius);
  box-shadow: 0 24px 56px -24px #19183d66;
}
.skin-glass .donate-feature {
  grid-area: feature; display: flex; flex-direction: column; justify-content: center; gap: clamp(16px, 2vw, 28px);
  padding: var(--pad); text-align: center; color: #242344; background: #e6e2ff9e;
  border: 1px solid #ffffff8c; border-radius: var(--radius); box-shadow: 0 24px 56px -24px #19183d66;
  -webkit-backdrop-filter: blur(20px) saturate(1.15); backdrop-filter: blur(20px) saturate(1.15);
}
.donate-feature-image { display: none; }
.has-feature-image .donate-feature-image {
  display: block; aspect-ratio: 1; background: var(--feature-image) center / cover no-repeat;
  border: 1px solid #ffffff8c; border-radius: min(var(--radius), 18px);
}
.skin-glass .donate-feature p { margin: 0; font-size: clamp(1.25rem, 2.5vw, 2rem); font-weight: 800; }
.skin-glass .donate-shell > .intro { grid-area: intro; }
.skin-glass .donate-shell > .form { grid-area: form; }
.skin-glass .donate-shell > .footer { grid-area: footer; }
.skin-glass .donate-shell > :is(.intro, .form, .footer) { position: relative; min-width: 0; }
.skin-glass .submit { border-radius: min(var(--radius), 14px); }

@media (min-width: 1040px) {
  .skin-glass .amount-field:has(.chips) { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
  .skin-glass .amount-field:has(.chips) > :is(label, .help) { grid-column: 1 / -1; }
  .skin-glass .amount-field .amount { grid-area: 2 / 1; }
  .skin-glass .amount-field .chips { grid-area: 2 / 2; max-width: min(20vw, 230px); }
  .skin-glass .methods { grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); }
}

@media (max-width: 760px) {
  body { padding: 18px 12px; align-items: flex-start; }
  .intro { flex-direction: column; align-items: flex-start; }
  .align-center .intro { align-items: center; }
  .title { font-size: min(var(--head-size), 36px); }
  .skin-glass .donate-shell { grid-template-columns: minmax(0, 1fr); grid-template-areas: "feature" "intro" "form" "footer"; }
  .skin-glass .donate-shell::before { grid-area: 2 / 1 / -1 / 2; }
  .skin-glass .donate-feature { margin-bottom: 14px; padding: 18px; }
  .skin-glass .donate-feature-image { aspect-ratio: 4 / 3; }
  .skin-glass .donate-shell { --pad: clamp(16px, 5vw, 28px); }
}