:root {
  color-scheme: dark;
  --bg: #09090b;
  --surface: #111113;
  --panel: #1b1b20;
  --text: #f4f4f6;
  --muted: #b4b4bd;
  --quiet: #a3a3ae;
  --accent: #ff9a52;
  --button: #ff8b38;
  --line: #303034;
  --max-width: 1220px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif; -webkit-font-smoothing: antialiased; line-height: 1.6; }
body.modal-open { overflow: hidden; }
h1, h2, h3, p, figure { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; cursor: pointer; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; height: auto; }
em { font-style: normal; color: var(--accent); }
ul, ol { padding: 0; list-style: none; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid #ffd3b0; outline-offset: 5px; }
::selection { color: #fff; background: #8b421d; }
.wrap { width: min(var(--max-width), calc(100% - 80px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 12px 20px; background: var(--accent); color: #170c04; border-radius: 8px; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid #29292d; background: #111113f2; backdrop-filter: blur(18px); }
.navigation { min-height: 80px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; min-height: 44px; white-space: nowrap; }
.brand-mark { width: 30px; height: 32px; fill: none; stroke: var(--accent); stroke-width: 3.6; stroke-linecap: round; flex: none; }
.nav-links { display: flex; align-items: center; gap: 30px; font-size: 14px; color: var(--muted); }
.nav-links > a { display: inline-flex; align-items: center; min-height: 44px; transition: color 160ms ease; }
.nav-links > a:not(.button):hover { color: var(--text); }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 12px; border: 1px solid transparent; border-radius: 30px; background: var(--button); color: #1b1007; font-size: 15px; line-height: 1.4; font-weight: 600; padding: 16px 27px; transition: background 180ms ease, border-color 180ms ease, transform 180ms ease; }
.button:hover { background: #ffab6b; transform: translateY(-2px); }
.button:active { transform: translateY(0); }
.button.small { min-height: 44px; font-size: 13px; padding: 10px 20px; }
.button.outline { background: transparent; border-color: #48484e; color: #e4e4e8; }
.button.outline:hover { background: #ffffff08; border-color: var(--accent); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid #45454c; border-radius: 10px; background: transparent; }
.menu-toggle svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.hero { padding: 86px 0 0; text-align: center; background: radial-gradient(ellipse at 50% 80%, #312018 0, transparent 56%); }
.eyebrow { font-size: 14px; letter-spacing: 2px; color: #ffac70; font-weight: 600; margin-bottom: 22px; }
.hero .eyebrow { margin-bottom: 25px; }
.slogan { letter-spacing: -2px; }
.slogan-intro { display: block; font-size: clamp(36px, 4vw, 56px); line-height: 1.3; margin-bottom: 14px; }
.slogan-main { display: block; font-size: clamp(44px, 6vw, 86px); line-height: 1.3; font-weight: 700; }
.lead { max-width: 780px; font-size: 19px; line-height: 1.8; color: var(--muted); margin: 27px auto 24px; }
.actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }
.hero-stage { position: relative; width: min(1130px, 100%); aspect-ratio: 1130 / 610; margin: 52px auto 0; }
.hero-shot { position: absolute; display: block; padding: 0; overflow: hidden; border: 1px solid #444047; border-radius: 14px; box-shadow: 0 30px 65px #0009; background: #171719; transition: border-color 180ms ease, transform 250ms ease; }
.hero-shot:hover { border-color: var(--accent); transform: translateY(-4px); }
.hero-shot img { width: 100%; }
.mainshot { top: 0; left: 0; width: 75.22%; }
.secondshot { width: 49.56%; right: 0; bottom: 5px; border-color: #4c3b30; border-radius: 12px; box-shadow: 0 18px 65px #000b; }
.photo-label { font-size: 12px; color: var(--quiet); position: absolute; bottom: -27px; right: 0; }
.overview { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 25px; padding: 58px 0 43px; border-bottom: 1px solid var(--line); }
.overview a { position: relative; border-radius: 8px; padding: 8px 0; }
.overview a:hover strong { color: var(--accent); }
.overview strong { display: block; font-size: 17px; font-weight: 500; transition: color 180ms ease; }
.overview a > span:not(.overview-number) { display: block; color: var(--quiet); font-size: 13px; margin-top: 8px; }
.overview .overview-number { display: block; font-size: 12px; color: var(--accent); margin-bottom: 12px; }
.feature { padding: 100px 0 90px; border-bottom: 1px solid #29292d; }
.feature.alt { background: var(--surface); }
.heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 42px; }
.heading h2 { font-size: clamp(32px, 3.3vw, 46px); line-height: 1.3; letter-spacing: -1.6px; text-wrap: balance; }
.heading .index { font-size: 70px; line-height: 1; color: #2e2e33; font-weight: 700; letter-spacing: -5px; flex: none; }
.feature-grid, .link-row { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 46px; align-items: center; }
.feature-grid.reverse { grid-template-columns: minmax(0, 1fr) minmax(0, 340px); }
.feature-grid.reverse .copy { order: 2; }
.copy h3 { font-size: 25px; line-height: 1.5; margin-bottom: 20px; text-wrap: balance; }
.copy > p { font-size: 17px; line-height: 1.95; color: var(--muted); }
.benefit { margin-top: 28px; padding-left: 17px; border-left: 3px solid #ff8c36; font-size: 18px; line-height: 1.7; color: #f3d8c7; }
.copy > .smallnote, .smallnote { font-size: 12px; color: var(--quiet); line-height: 1.9; margin-top: 20px; }
.screen { position: relative; display: block; width: 100%; text-align: start; border: 1px solid #34343a; border-radius: 14px; padding: 10px; background: #19191d; box-shadow: 0 18px 45px #0005; transition: border-color 180ms ease; }
.screen:hover { border-color: #96633c; }
.screen img { width: 100%; border-radius: 6px; }
.zoom-hint { position: absolute; bottom: 14px; right: 14px; font-size: 12px; line-height: 1.6; padding: 7px 12px; background: #141416ee; border: 1px solid #5c5c63; border-radius: 8px; color: #f1e9e2; pointer-events: none; }
figcaption, .screen-caption { color: var(--quiet); font-size: 12px; line-height: 1.7; padding-top: 14px; }
.flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; gap: 42px; background: var(--panel); border-radius: 18px; padding: 27px 36px; margin: 36px 0 0; }
.flow li { position: relative; display: grid; grid-template-columns: 36px 1fr; align-items: start; }
.flow li:not(:last-child)::after { content: "→"; position: absolute; right: -28px; top: 4px; color: #c78d64; font-size: 24px; }
.step { grid-row: span 2; color: #ff9c58; font-size: 12px; line-height: 27px; }
.flow strong { font-size: 17px; font-weight: 500; }
.flow small { font-size: 13px; color: #b0b0bb; margin-top: 8px; line-height: 1.5; }
.face-shot { padding: 0; height: 470px; overflow: hidden; background: #121214; }
.face-shot img { position: absolute; width: 1060px; max-width: none; right: 0; top: -148px; border-radius: 0; }
.fan-shot { height: 470px; overflow: hidden; }
.import-shot { height: 425px; overflow: hidden; }
.import-shot img { margin-top: -48px; }
.copy > .condition { font-size: 14px; line-height: 1.8; color: #dac1ae; background: #261d17; border: 1px solid #4b3422; border-radius: 10px; padding: 16px 20px; margin-top: 24px; }
.condition strong { font-weight: 600; color: #ffb27b; }
.music-intro { font-size: 18px; color: #b8b8c1; margin-top: 24px; line-height: 1.8; }
.method-label, .copy > .method-label { font-size: 13px; color: #ffad72; font-weight: 600; letter-spacing: 1px; margin-bottom: 20px; }
.link-row { margin-top: 48px; }
.wire-shot { height: 426px; overflow: hidden; }
.category-row { grid-template-columns: minmax(0, 1fr) minmax(0, 340px); border-top: 1px solid #303035; padding-top: 58px; margin-top: 50px; }
.category-show { display: grid; grid-template-columns: minmax(160px, 240px) minmax(0, 1fr); gap: 20px; align-items: center; }
.category-example { padding-left: 12px; }
.category-example h3 { font-size: 27px; line-height: 1.5; }
.demo-songs { margin: 23px 0 0; font-size: 17px; line-height: 2.4; color: #bcbcc5; }
.example-result { font-size: 16px; line-height: 1.8; margin-top: 28px; }
.category-shot { height: 465px; overflow: hidden; padding: 0; }
.category-shot img { position: absolute; width: 1660px; max-width: none; right: -5px; top: -200px; border-radius: 0; }
.category-show > .screen-caption { grid-column: 1 / -1; }
.timing { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 45px; padding: 27px 32px; background: var(--panel); border-radius: 16px; }
.timing h3 { font-size: 19px; }
.timing p { font-size: 14px; color: #b5b5bf; margin-top: 10px; }
.timing p.timing-formula { font-size: 15px; color: #d6d6df; margin-top: 0; flex: none; }
.timing b { font-weight: 400; color: var(--accent); padding: 0 10px; }
.download { text-align: center; padding: 95px 0 70px; background: radial-gradient(ellipse at 50% 100%, #251a13, transparent 65%); }
.download h2 { font-size: clamp(32px, 3.3vw, 46px); line-height: 1.35; letter-spacing: -1px; }
.download p { color: #aaaab4; margin: 20px 0 29px; font-size: 17px; line-height: 1.8; }
.download .release-meta, .download .download-info { font-size: 13px; margin: 18px 0 0; }
.extras { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px 32px; color: #b8b8c3; font-size: 13px; margin: 34px 0 0; }
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 55px; }
.contact article { display: flex; justify-content: space-between; align-items: center; gap: 18px; background: #17171b; border: 1px solid #2c2c32; border-radius: 18px; padding: 32px; }
.contact h2 { font-size: 21px; }
.contact article p { color: var(--quiet); font-size: 14px; margin-top: 10px; }
.text-link { display: inline-flex; align-items: center; min-height: 44px; gap: 6px; font-size: 15px; color: #ffad72; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.contact .text-link { white-space: nowrap; }
.contact-info { grid-column: 1 / -1; color: var(--quiet); font-size: 13px; text-align: center; }
.site-footer { border-top: 1px solid #29292d; padding: 24px 0 30px; font-size: 12px; color: var(--quiet); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.site-footer a { display: inline-flex; align-items: center; min-height: 44px; }
.site-footer a:hover { color: var(--accent); }
dialog { background: #17171b; color: var(--text); border: 1px solid #4a4a53; border-radius: 18px; padding: 0; box-shadow: 0 24px 100px #000b; }
dialog::backdrop { background: #000c; backdrop-filter: blur(10px); }
dialog[open] { animation: dialog-enter 180ms ease both; }
.dialog-bar { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px 18px; border-bottom: 1px solid var(--line); background: #17171bf5; }
.dialog-bar h2 { font-size: 16px; font-weight: 500; line-height: 1.6; }
.dialog-tools { display: flex; gap: 16px; align-items: center; flex: none; }
.dialog-tools .text-link { font-size: 13px; }
.close-button { width: 44px; height: 44px; flex: none; background: #27272e; color: #eee; border: 1px solid #45454e; border-radius: 50%; font-size: 26px; line-height: 1; }
.close-button:hover { background: #3b3b43; }
.image-dialog { width: min(1500px, calc(100vw - 48px)); max-width: none; max-height: calc(100dvh - 48px); }
.image-canvas { padding: 16px; display: flex; justify-content: center; }
.image-canvas img { width: auto; max-height: calc(100dvh - 160px); object-fit: contain; }
.contact-dialog { width: min(480px, calc(100vw - 32px)); max-height: calc(100dvh - 40px); padding-bottom: 24px; }
.contact-dialog > p, .contact-value, .contact-outbound { margin: 24px 24px 0; }
.contact-dialog > p { color: var(--muted); font-size: 15px; }
.contact-qr { width: 240px; max-width: calc(100% - 48px); margin: 24px auto 0; background: #fff; border: 10px solid white; border-radius: 10px; }
.contact-value { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; border: 1px solid #45454e; padding: 14px; border-radius: 12px; }
.contact-value span { color: var(--quiet); font-size: 13px; }
.contact-value strong { overflow-wrap: anywhere; user-select: all; }
.contact-value .button { margin-left: auto; }
.dialog-status { min-height: 1.6em; }
.toast { position: fixed; z-index: 60; bottom: max(28px, env(safe-area-inset-bottom)); left: 50%; transform: translate(-50%, 18px); width: max-content; max-width: calc(100% - 32px); border-radius: 12px; padding: 14px 20px; color: #fff; background: #2b211a; border: 1px solid #825b3e; box-shadow: 0 12px 35px #0008; font-size: 14px; opacity: 0; visibility: hidden; transition: opacity 180ms, transform 180ms, visibility 180ms; pointer-events: none; }
.toast.visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
@keyframes dialog-enter { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 1150px) {
  .wrap { width: calc(100% - 64px); }
  .feature-grid, .link-row { grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: 32px; }
  .feature-grid.reverse, .category-row { grid-template-columns: minmax(0, 1fr) minmax(0, 300px); }
  .category-show { grid-template-columns: 1fr; }
  .category-example { display: none; }
  .category-shot img { right: -5px; }
  .wire-shot { height: auto; aspect-ratio: 1.9; }
  .face-shot { height: 420px; }
  .face-shot img { width: 960px; top: -130px; }
  .fan-shot { height: auto; aspect-ratio: 1.65; }
  .import-shot { height: auto; aspect-ratio: 1.7; }
  .import-shot img { margin-top: -30px; }
  .timing { align-items: flex-start; flex-direction: column; }
  .contact article { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 800px) {
  html { scroll-padding-top: 88px; }
  .wrap { width: calc(100% - 40px); }
  .navigation { min-height: 68px; gap: 16px; flex-wrap: wrap; }
  .brand { font-size: 18px; }
  .brand-mark { width: 26px; }
  .nav-links { width: 100%; flex-wrap: wrap; gap: 10px 24px; padding-bottom: 16px; }
  .js .menu-toggle:not([hidden]) { display: block; }
  .js .nav-links { display: none; }
  .js .navigation.menu-open .nav-links { display: flex; order: 3; }
  .hero { padding-top: 64px; }
  .lead { font-size: 17px; max-width: 580px; }
  .overview { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; padding-top: 45px; }
  .feature { padding: 68px 0; }
  .heading { margin-bottom: 32px; align-items: start; }
  .heading h2 { font-size: 36px; letter-spacing: -1px; }
  .heading .index { font-size: 54px; }
  .feature-grid, .feature-grid.reverse, .link-row, .category-row { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .feature-grid.reverse .copy { order: 0; }
  .category-row .copy { grid-row: 1; }
  .copy h3 { font-size: 24px; }
  .copy > p { max-width: 620px; }
  .copy .smallnote { font-size: 13px; }
  .benefit { margin-top: 20px; }
  .link-row { margin-top: 36px; }
  .category-row { padding-top: 42px; margin-top: 42px; }
  .category-show { grid-template-columns: minmax(0, 200px) minmax(0, 1fr); }
  .category-example { display: block; }
  .category-shot { height: 420px; }
  .category-shot img { width: 1480px; top: -180px; }
  .face-shot { height: 430px; }
  .face-shot img { width: 1000px; top: -140px; }
  .flow { padding: 24px; gap: 24px; }
  .flow li { grid-template-columns: 1fr; }
  .step { grid-row: auto; margin-bottom: 8px; }
  .flow strong { font-size: 16px; }
  .flow li:not(:last-child)::after { right: -18px; top: 38px; font-size: 20px; }
  .contact article { padding: 24px; }
  .download { padding: 68px 0 48px; }
}
@media (max-width: 480px) {
  .wrap { width: calc(100% - 36px); }
  .navigation { min-height: 64px; }
  .brand { gap: 10px; font-size: 17px; }
  .hero { padding-top: 50px; }
  .eyebrow { font-size: 12px; letter-spacing: 1.3px; margin-bottom: 18px; }
  .slogan { letter-spacing: -1.5px; }
  .slogan-intro { font-size: 34px; margin-bottom: 12px; }
  .slogan-main { font-size: clamp(29px, 9vw, 43px); white-space: nowrap; }
  .lead { font-size: 15px; line-height: 1.9; margin-top: 23px; }
  .desktop-break { display: none; }
  .actions { gap: 10px; }
  .actions .button { font-size: 13px; padding: 13px 17px; min-height: 48px; gap: 6px; }
  .hero-stage { margin-top: 35px; aspect-ratio: 1.5; }
  .mainshot { width: 90%; border-radius: 8px; }
  .secondshot { width: 58%; bottom: 0; border-radius: 7px; }
  .photo-label { position: static; padding-top: calc(100% / 1.5 + 12px); font-size: 11px; text-align: center; }
  .overview { padding: 58px 0 30px; gap: 16px; }
  .overview strong { font-size: 14px; }
  .overview a > span:not(.overview-number) { font-size: 12px; }
  .heading { gap: 12px; }
  .heading h2 { font-size: clamp(25px, 7.1vw, 33px); letter-spacing: -.7px; }
  .heading .index { font-size: 36px; letter-spacing: -2px; }
  .feature { padding: 54px 0; }
  .music-intro { font-size: 16px; margin-top: 20px; }
  .copy h3 { font-size: 23px; margin-bottom: 16px; }
  .copy > p { font-size: 16px; line-height: 1.9; }
  .copy > .method-label { font-size: 12px; }
  .benefit { font-size: 16px; }
  .screen { padding: 5px; border-radius: 10px; }
  .zoom-hint { right: 8px; bottom: 8px; font-size: 11px; padding: 5px 8px; }
  .wire-shot { aspect-ratio: 1.8; }
  figcaption, .screen-caption { font-size: 12px; }
  .category-show { grid-template-columns: 1fr; gap: 18px; }
  .category-example { padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; align-items: center; }
  .category-example .method-label { grid-column: 1 / -1; margin: 0; }
  .category-example h3 { font-size: 21px; }
  .demo-songs { margin: 0; font-size: 14px; line-height: 2; }
  .example-result { grid-column: 1 / -1; margin-top: 0; font-size: 14px; }
  .example-result br { display: none; }
  .example-result em { margin-left: 12px; }
  .category-shot { padding: 0; height: 380px; }
  .category-shot img { width: 1350px; top: -164px; right: -4px; }
  .face-shot { height: 355px; padding: 0; }
  .face-shot img { width: 800px; top: -112px; }
  .fan-shot { aspect-ratio: 1.32; }
  .import-shot { aspect-ratio: 1.5; }
  .import-shot img { margin-top: -15px; }
  .flow { grid-template-columns: 1fr; gap: 22px; padding: 24px; margin-top: 28px; }
  .flow li { grid-template-columns: 32px 1fr; }
  .step { grid-row: span 2; margin: 0; }
  .flow li:not(:last-child)::after { content: "↓"; top: auto; bottom: -21px; left: 2px; right: auto; font-size: 14px; }
  .flow small { margin-top: 4px; }
  .timing { padding: 24px; margin-top: 30px; gap: 16px; }
  .timing h3 { font-size: 18px; }
  .timing p.timing-formula { font-size: 12px; flex: auto; }
  .timing b { padding: 0 3px; }
  .contact { grid-template-columns: 1fr; gap: 16px; margin-bottom: 32px; }
  .contact article { gap: 14px; }
  .contact h2 { font-size: 21px; }
  .contact-info { text-align: left; }
  .footer-inner { justify-content: flex-start; gap: 10px 20px; }
  .footer-inner > span:first-child { width: 100%; }
  .image-dialog { width: calc(100vw - 16px); max-height: calc(100dvh - 24px); border-radius: 12px; }
  .dialog-bar { gap: 10px; padding: 10px 12px; align-items: start; }
  .dialog-bar h2 { font-size: 14px; padding-top: 10px; }
  .dialog-tools { gap: 8px; flex-wrap: wrap; justify-content: flex-end; max-width: 106px; }
  .dialog-tools .text-link { font-size: 12px; }
  .image-canvas { padding: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}