/* =========================================================
   Onboard Modal — 独立打包版
   来源：toolbox-website/public/index.html + styles.css
   包含：视频背景、左侧卡通角色、右侧欢迎卡片、头像选择、
         姓名输入、登录按钮、左上角音乐播放器
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700;12..96,800&family=Manrope:wght@400;500;600;700&family=ZCOOL+XiaoWei&family=Noto+Serif+SC:wght@400;700&display=swap');

:root {
  --font-display: 'Bricolage Grotesque', 'ZCOOL XiaoWei', 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', serif;
  --font-body: 'Manrope', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }

/* =========================================================
   Onboarding Modal
   ========================================================= */

.onboard-modal {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 210;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease), visibility .3s var(--ease);
}
.onboard-modal.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}
.onboard-modal__scrim {
  position: absolute; inset: 0; z-index: 1;
  background: rgba(8, 11, 17, .1);
  backdrop-filter: none;
}
.onboard-modal__video {
  position: absolute; z-index: 0;
  top: 0; left: 0;
  width: 50%; height: 50%;
  object-fit: cover; object-position: center;
  pointer-events: none;
  will-change: transform;
  transform: translateZ(0) scale(2);
  transform-origin: top left;
  backface-visibility: hidden;
  contain: paint;
  image-rendering: auto;
}
.onboard-modal__stage {
  position: absolute; inset: 0; z-index: 2;
  display: flex; align-items: center; justify-content: center; gap: 0;
  padding: 24px;
  opacity: 0; transform: scale(.96) translateY(20px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.onboard-modal.is-open .onboard-modal__stage {
  opacity: 1; transform: scale(1) translateY(0);
}
.onboard-modal__card {
  position: relative;
  display: flex; align-items: stretch;
  width: min(880px, calc(100vw - 48px));
  margin: 0 auto;
  background: #fff; border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 40px 100px -30px rgba(0,0,0,.45);
}
.onboard-modal__close {
  position: absolute; top: 14px; right: 14px; z-index: 10;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer; color: rgba(17,24,39,.45);
  background: rgba(0,0,0,.06); border: 1px solid rgba(0,0,0,.1);
  transition: color .2s, transform .2s, background .2s;
}
.onboard-modal__close:hover { color: #111827; transform: rotate(90deg); background: rgba(0,0,0,.1); }

/* 左侧角色 */
.onboard-characters {
  position: relative; width: 50%; min-width: 430px; height: auto; min-height: 340px;
  background: #e8e9ec; border-radius: 0;
  pointer-events: none; overflow: hidden;
}
.ob-char {
  position: absolute; bottom: 0; transform-origin: 50% 100%;
  display: flex; align-items: flex-start; justify-content: center;
  transition: transform .25s var(--ease);
  transform: none;
}
.ob-char--orange {
  left: 4px; bottom: -28px; width: 246px; height: 123px;
  background: #f4a261; border-radius: 140px 140px 90px 90px;
}
.ob-char--purple {
  left: 145px; bottom: 0; width: 84px; height: 269px;
  background: #7c3aed; border-radius: 10px 10px 13px 13px;
}
.ob-char--black {
  left: 217px; bottom: 0; width: 73px; height: 202px;
  background: #1f2937; border-radius: 10px 10px 13px 13px;
}
.ob-char--yellow {
  left: 280px; bottom: 0; width: 78px; height: 157px;
  background: #facc15; border-radius: 51px 51px 13px 13px;
}

.onboard-modal.is-open .ob-char--orange {
  animation: obEnterLeft 0.6s var(--ease) .12s both, obBobSway 3.2s ease-in-out .72s infinite;
}
.onboard-modal.is-open .ob-char--purple {
  animation: obEnterRight 0.6s var(--ease) .27s both, obBob 3s ease-in-out .87s infinite;
}
.onboard-modal.is-open .ob-char--black {
  animation: obEnterLeft 0.6s var(--ease) .42s both, obBob 3.4s ease-in-out 1.02s infinite;
}
.onboard-modal.is-open .ob-char--yellow {
  animation: obEnterRight 0.6s var(--ease) .57s both, obBob 2.8s ease-in-out 1.17s infinite;
}
@keyframes obEnterLeft {
  from { opacity: 0; transform: translateX(-70px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes obEnterRight {
  from { opacity: 0; transform: translateX(70px); }
  to { opacity: 1; transform: translateX(0); }
}

/* 五官 */
.ob-face {
  position: absolute; top: 0; left: 0; right: 0;
  display: flex; justify-content: center; align-items: flex-start;
  padding-top: 15px; gap: 5px;
}
.ob-face--side { justify-content: flex-start; padding-left: 15px; gap: 0; }
.ob-eye {
  position: relative; width: 8px; height: 8px; border-radius: 50%;
  background: transparent; overflow: hidden;
}

.ob-char--orange .ob-face { padding-top: 33px; gap: 10px; }
.ob-char--orange .ob-eye { width: 12px; height: 12px; background: #1a1a2e; }
.ob-char--orange .ob-pupil { display: none; }

.ob-char--purple .ob-face { padding-top: 29px; gap: 7px; }
.ob-char--purple .ob-eye { width: 21px; height: 21px; background: #fff; }
.ob-char--purple .ob-pupil { width: 10px; height: 10px; background: #111827; }

.ob-char--black .ob-face { padding-top: 26px; gap: 7px; }
.ob-char--black .ob-eye { width: 18px; height: 18px; background: #fff; }
.ob-char--black .ob-pupil { width: 8px; height: 8px; background: #111827; }

.ob-eye--single { width: 11px; height: 11px; }
.ob-char--yellow .ob-eye--single { width: 13px; height: 13px; background: #1a1a2e; }
.ob-char--yellow .ob-eye--single .ob-pupil { display: none; }

.ob-pupil {
  position: absolute; top: 50%; left: 50%; width: 7px; height: 7px;
  border-radius: 50%; background: #1a1a2e; transform: translate(-50%, -50%);
  will-change: transform;
}
.ob-eye.is-blinking { animation: obBlink .18s ease-in-out 2; }
@keyframes obBlink { 0%,100% { transform: scaleY(1); } 50% { transform: scaleY(.15); } }

.ob-mouth {
  position: absolute; top: 25px; left: 50%; transform: translateX(-50%);
  width: 7px; height: 4px; border-bottom: 2px solid #1a1a2e; border-radius: 0 0 7px 7px;
}
.ob-char--orange .ob-mouth {
  top: 52px; width: 16px; height: 7px; border-bottom-width: 2px; border-radius: 0 0 16px 16px;
}
.ob-char--purple .ob-mouth {
  top: 57px; width: 12px; height: 0; border-bottom: 2px solid #1a1a2e; border-radius: 0;
}
.ob-char--black .ob-mouth { border-color: #fff; }
.ob-char--yellow .ob-face--side { padding-left: 18px; padding-top: 36px; }
.ob-char--yellow .ob-face--side .ob-mouth {
  top: 54px; left: 26px; transform: none;
  width: 21px; height: 0; border-bottom: 2px solid #1a1a2e; border-radius: 0;
  transform: rotate(-8deg); transform-origin: left center;
}

.onboard-characters:hover .ob-char--orange { transform: translateY(-5px) rotate(-1deg); }
.onboard-characters:hover .ob-char--purple { transform: translateY(-8px); }
.onboard-characters:hover .ob-char--black { transform: translateY(-6px); }
.onboard-characters:hover .ob-char--yellow { transform: translateY(-6px) rotate(1deg); }

@keyframes obBob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes obSway { 0%,100% { transform: rotate(-1deg); } 50% { transform: rotate(1deg); } }
@keyframes obBobSway {
  0% { transform: translateY(0) rotate(-1deg); }
  25% { transform: translateY(-6px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
  75% { transform: translateY(-6px) rotate(0deg); }
  100% { transform: translateY(0) rotate(-1deg); }
}

/* 右侧卡片 */
.onboard-card {
  position: relative; width: 50%; min-width: 320px;
  background: #fff; border-radius: 0;
  padding: 34px 32px 28px; color: #111827;
  display: flex; flex-direction: column; justify-content: center;
}
.onboard-card__sparkle {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  font-size: 2.1rem; color: #111827; line-height: 1;
  animation: obSparkle 2.5s ease-in-out infinite;
}
@keyframes obSparkle { 0%,100% { transform: translateX(-50%) scale(1) rotate(0); } 50% { transform: translateX(-50%) scale(1.2) rotate(12deg); } }
@keyframes obAvatarRingSpin { to { transform: rotate(360deg); } }
.onboard-card__title {
  font-family: var(--font-display);
  font-size: 2.5rem; font-weight: 800; text-align: center; margin: 26px 0 7px;
}
.onboard-card__subtitle { text-align: center; color: #6b7280; font-size: 1.2rem; margin: 0 0 26px; }

.onboard-avatars {
  display: flex; justify-content: center; align-items: center; gap: 9px;
  margin-bottom: 36px; flex-wrap: nowrap;
}
.onboard-avatar {
  position: relative; width: 56px; height: 56px; border-radius: 50%; padding: 0;
  border: 2px solid #e5e7eb; background: #f3f4f6; cursor: pointer;
  display: grid; place-items: center; overflow: hidden; flex-shrink: 0;
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.onboard-avatar:hover { transform: translateY(-3px); }
.onboard-avatar.is-active {
  border-color: transparent;
  box-shadow: 0 8px 20px -8px rgba(0,0,0,.35);
  transform: scale(1.08);
  overflow: visible;
  z-index: 1;
}
.onboard-avatar.is-active::before {
  content: '';
  position: absolute; inset: -5px; border-radius: 50%;
  background: conic-gradient(from 0deg, #f59e0b, #f472b6, #8b5cf6, #22d3ee, #f59e0b);
  z-index: -1;
  animation: obAvatarRingSpin 1.6s linear infinite;
}
.onboard-avatar svg,
.onboard-avatar img { width: 100%; height: 100%; display: block; object-fit: cover; border-radius: 50%; }
.onboard-avatar--upload {
  border: 2px dashed #d1d5db; color: #9ca3af; background: #fff;
}
.onboard-avatar--upload:hover { border-color: #7c3aed; color: #7c3aed; }
.onboard-avatar__plus { font-size: 1.8rem; font-weight: 300; line-height: 1; }
.onboard-avatar__preview {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; border-radius: 50%;
}
.onboard-avatar__preview:not([src]), .onboard-avatar__preview[src=""] { display: none !important; }
.onboard-avatar--upload.has-preview { border-style: solid; border-color: #111827; }
.onboard-avatar--upload.has-preview .onboard-avatar__plus { display: none; }

.onboard-form { display: flex; flex-direction: column; gap: 32px; }
.onboard-field { display: flex; flex-direction: column; gap: 9px; }
.onboard-field label {
  display: flex; align-items: center; gap: 6px;
  font-size: 1.2rem; font-weight: 600; color: #374151;
}
.onboard-field label svg { color: #6b7280; }
.onboard-field input {
  appearance: none; width: 100%; padding: 17px 16px; border-radius: 18px;
  border: 1px solid #e5e7eb; background: #f9fafb; color: #111827;
  font-family: var(--font-body); font-size: 1.35rem;
  outline: none; transition: border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.onboard-field input::placeholder { color: #9ca3af; }
.onboard-field input:focus { border-color: #7c3aed; background: #fff; box-shadow: 0 0 0 3px rgba(124,58,237,.12); }
.onboard-error {
  font-size: 1.05rem; color: #dc2626; background: #fef2f2;
  border: 1px solid #fecaca; border-radius: 10px; padding: 10px 12px;
}
.onboard-submit {
  appearance: none; border: none; width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 17px; border-radius: 999px; margin-top: 4px;
  background: #f3f4f6; color: #9ca3af;
  font-family: var(--font-display); font-weight: 700; font-size: 1.4rem;
  cursor: not-allowed;
  transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.onboard-submit:not(:disabled) {
  background: #111827; color: #fff; cursor: pointer;
  box-shadow: 0 10px 28px -10px rgba(17,24,39,.45);
}
.onboard-submit:not(:disabled):hover { transform: translateY(-2px); box-shadow: 0 14px 36px -12px rgba(17,24,39,.55); }
.onboard-submit:not(:disabled):active { transform: translateY(0); }
.onboard-submit svg { transition: transform .25s var(--ease); }
.onboard-submit:not(:disabled):hover svg { transform: translateX(4px); }
.onboard-card__footer { text-align: center; color: #9ca3af; font-size: 1rem; margin-top: 26px; letter-spacing: .04em; }

/* 加载小圆圈（提交时使用） */
.spinner-sm {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin360 .8s linear infinite;
  vertical-align: middle;
}
@keyframes spin360 { to { transform: rotate(360deg); } }

/* =========================================================
   左上角音乐播放器
   ========================================================= */

.ob-music {
  --m-cover: #ef4444;
  position: absolute;
  top: 20px; left: 20px;
  z-index: 5;
  margin: 0; padding: 12px 14px 14px;
  width: min(286px, calc(100vw - 40px));
  border-radius: 22px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.35);
  box-shadow: 0 14px 36px -16px rgba(17,24,39,.16), inset 0 1px 0 rgba(255,255,255,.4);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  color: #111827;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s;
  overflow: visible;
  animation: musicFloatIn .5s var(--ease) both;
}
@keyframes musicFloatIn { from { opacity: 0; transform: translateY(-14px); } to { opacity: 1; transform: none; } }

@media (max-width: 640px) { .ob-music { display: none; } }

.ob-music::before {
  content: ''; position: absolute; inset: -1px; border-radius: 24px;
  background: linear-gradient(135deg, rgba(255,255,255,.6), rgba(255,255,255,.1));
  z-index: -2; opacity: .22;
}
.ob-music__glow {
  position: absolute; inset: -30% -20%;
  background: radial-gradient(circle at 30% 40%, var(--m-cover), transparent 55%);
  opacity: .12; filter: blur(18px);
  z-index: -3; pointer-events: none;
  transition: opacity .5s, background .5s;
}
.ob-music.is-playing .ob-music__glow { opacity: .18; animation: mGlow 4s ease-in-out infinite; }
@keyframes mGlow { 0%,100%{transform:scale(1)} 50%{transform:scale(1.08)} }
.ob-music:hover { transform: translateY(-2px); box-shadow: 0 24px 50px -18px rgba(0,0,0,.14), inset 0 1px 0 rgba(255,255,255,.8); }

.ob-music__pill {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto auto;
  align-items: center; gap: 12px;
}
.ob-music__cover {
  position: relative; width: 44px; height: 44px; border-radius: 13px;
  display: grid; place-items: center;
  background: var(--m-cover);
  box-shadow: 0 10px 24px -10px var(--m-cover);
  transition: transform .4s var(--ease), background .4s, box-shadow .4s;
  overflow: hidden;
}
.ob-music__cover-letter {
  position: relative; z-index: 2;
  font-family: var(--font-display);
  font-size: 1.35rem; font-weight: 800; color: #fff;
  text-shadow: 0 2px 6px rgba(0,0,0,.18);
  transition: transform .4s var(--ease);
}
.ob-music__vinyl {
  position: absolute; inset: 0; border-radius: 50%;
  background: repeating-radial-gradient(circle at 50%, rgba(0,0,0,.12) 0 2px, transparent 3px 6px);
  opacity: .35; transform: scale(1.6);
  transition: transform .6s var(--ease), opacity .4s;
}
.ob-music.is-playing .ob-music__cover { transform: scale(1.06); }
.ob-music.is-playing .ob-music__cover-letter { transform: scale(.85); }
.ob-music.is-playing .ob-music__vinyl { opacity: .55; animation: mSpin 6s linear infinite; }
@keyframes mSpin { to { transform: scale(1.6) rotate(360deg); } }

.ob-music__meta { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.ob-music__meta strong {
  font-size: 1.05rem; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ob-music__meta span {
  font-size: .86rem; color: #4b5563;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ob-music__equalizer {
  display: none; align-items: flex-end; gap: 2.5px; height: 18px;
}
.ob-music.is-playing .ob-music__equalizer { display: flex; }
.ob-music__equalizer i {
  width: 3.5px; border-radius: 99px; background: var(--m-cover);
  opacity: .85; animation: mBar .9s ease-in-out infinite;
}
.ob-music__equalizer i:nth-child(1) { height: 7px; animation-duration: .65s; }
.ob-music__equalizer i:nth-child(2) { height: 14px; animation-duration: .9s; }
.ob-music__equalizer i:nth-child(3) { height: 10px; animation-duration: .78s; }
@keyframes mBar { 0%,100%{transform:scaleY(.4)} 50%{transform:scaleY(1)} }
.ob-music__ctrl { display: flex; align-items: center; gap: 5px; }
.ob-music__btn {
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(255,255,255,.28);
  border: 1px solid rgba(255,255,255,.45);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  color: #111827; cursor: pointer;
  transition: transform .2s var(--ease), background .2s, color .2s, border-color .2s;
}
.ob-music__btn:hover { transform: scale(1.12); background: rgba(255,255,255,.45); border-color: rgba(255,255,255,.65); }
.ob-music__btn:active { transform: scale(.94); }
.ob-music__btn--play {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.35);
  border-color: rgba(255,255,255,.55);
  box-shadow: 0 10px 24px -10px rgba(0,0,0,.12), inset 0 1px 0 rgba(255,255,255,.5);
}
.ob-music__btn--play:hover { background: rgba(255,255,255,.5); border-color: rgba(255,255,255,.7); }
.ob-music__btn--play .ob-music__icon-play { display: block; }
.ob-music__btn--play .ob-music__icon-pause { display: none; }
.ob-music.is-playing .ob-music__btn--play .ob-music__icon-play { display: none; }
.ob-music.is-playing .ob-music__btn--play .ob-music__icon-pause { display: block; }
.ob-music__btn svg,
.ob-music__btn path { fill: #111827 !important; }

.ob-music__progress {
  position: relative; height: 4px; border-radius: 99px;
  background: rgba(17,24,39,.08); margin: 12px 2px 12px;
  cursor: pointer; outline: none;
}
.ob-music__progress-bar {
  height: 100%; border-radius: 99px;
  background: linear-gradient(90deg, var(--m-cover), #fb7185);
  width: 0%; transition: width .1s linear;
  pointer-events: none;
}
.ob-music__progress-thumb {
  position: absolute; top: 50%; left: 0%;
  width: 11px; height: 11px; border-radius: 50%;
  background: #fff; border: 2px solid var(--m-cover);
  transform: translate(-50%, -50%) scale(0);
  transition: left .1s linear, transform .2s var(--ease);
  pointer-events: none;
}
.ob-music__progress:hover .ob-music__progress-thumb,
.ob-music__progress:focus .ob-music__progress-thumb { transform: translate(-50%, -50%) scale(1); }
.ob-music__playlist {
  display: flex; gap: 7px; overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}
.ob-music__playlist::-webkit-scrollbar { display: none; }
.ob-music__track {
  flex: 0 0 auto;
  display: flex; align-items: center; gap: 7px;
  padding: 6px 11px 6px 7px; border-radius: 999px;
  background: rgba(17,24,39,.04); border: 1px solid transparent;
  color: #374151; font-size: .86rem; cursor: pointer;
  transition: background .2s, border-color .2s, transform .2s var(--ease);
}
.ob-music__track:hover { background: rgba(17,24,39,.08); transform: translateY(-1px); }
.ob-music__track.is-active { background: rgba(255,255,255,.65); border-color: var(--m-cover); color: #111827; box-shadow: 0 4px 14px -6px rgba(139,92,246,.3); }
.ob-music__track-cover {
  width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--t-cover, #8b5cf6); color: #fff;
  font-size: .68rem; font-weight: 700;
}

/* =========================================================
   响应式
   ========================================================= */

@media (max-width: 768px) {
  .onboard-modal__stage { padding: 70px 8px 8px; overflow-y: auto; }
  .onboard-modal__card { flex-direction: column; width: min(560px, calc(100vw - 16px)); }
  .onboard-characters { width: 100%; min-width: auto; height: 220px; min-height: auto; transform: scale(1); border-radius: 0; }
  .onboard-card { width: 100%; min-width: auto; border-radius: 0; padding: 28px 24px 24px; }
}
@media (max-width: 480px) {
  .onboard-characters { transform: scale(1); margin-bottom: 0; }
  .onboard-avatar { width: 64px; height: 64px; }
  .onboard-card__title { font-size: 2.6rem; }
}
@media (prefers-reduced-motion: reduce) {
  .ob-char { animation: none !important; }
  .ob-eye.is-blinking { animation: none !important; }
  .ob-pupil { transition: transform .2s ease-out; }
}