:root {
  --cream: #fffaf0;
  --cream-deep: #f7efdd;
  --paper: rgba(255, 253, 246, 0.92);
  --ink: #38372f;
  --muted: #777367;
  --line: rgba(78, 75, 60, 0.12);
  --yellow: #f5cb45;
  --yellow-dark: #dba91f;
  --green: #8ca267;
  --green-deep: #62784c;
  --green-soft: #eaf0de;
  --pink-soft: #f6e8e2;
  --shadow: 0 24px 70px rgba(82, 73, 46, 0.12);
  --shadow-small: 0 14px 34px rgba(82, 73, 46, 0.09);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 3% 12%, rgba(249, 210, 73, 0.1), transparent 27%),
    radial-gradient(circle at 96% 28%, rgba(141, 164, 104, 0.11), transparent 25%),
    var(--cream);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }

.page-glow {
  position: fixed;
  z-index: -1;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(12px);
  opacity: 0.42;
  pointer-events: none;
}

.page-glow-left { top: 420px; left: -280px; background: rgba(246, 203, 65, 0.18); }
.page-glow-right { top: 1060px; right: -300px; background: rgba(126, 153, 82, 0.16); }

.site-header {
  width: min(1180px, calc(100% - 40px));
  height: 76px;
  margin: 18px auto 0;
  padding: 0 14px 0 16px;
  display: flex;
  align-items: center;
  gap: 24px;
  position: sticky;
  top: 14px;
  z-index: 50;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 24px;
  background: rgba(255, 252, 244, 0.84);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 42px rgba(89, 78, 45, 0.08);
}

.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.brand img { width: 46px; height: 46px; border-radius: 14px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.05; }
.brand-copy strong { font-family: "Songti SC", "STSong", serif; font-size: 20px; letter-spacing: 0.06em; }
.brand-copy small { margin-top: 5px; color: #8b8678; font-size: 9px; letter-spacing: 0.16em; }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: #625f55; font-size: 14px; transition: color .2s ease; }
.site-nav a:hover { color: var(--green-deep); }
.site-nav a.active { color: var(--green-deep); font-weight: 700; }
.site-nav a.active::after { content: ""; display: block; width: 18px; height: 2px; margin: 6px auto 0; border-radius: 99px; background: var(--yellow); }
.header-actions { display: flex; gap: 10px; }

.button {
  min-height: 44px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 42px; padding: 0 19px; background: var(--ink); color: #fffdf5; font-size: 13px; }
.button-primary { background: var(--yellow); border-color: #efc13b; color: #3a372d; box-shadow: 0 10px 25px rgba(218, 166, 31, 0.2); font-weight: 650; }
.button-primary:hover { background: #f8d35d; box-shadow: 0 14px 34px rgba(218, 166, 31, 0.26); }
.button-secondary { background: rgba(255,255,255,.68); border-color: var(--line); }
.button-secondary:hover { background: #fff; box-shadow: var(--shadow-small); }
.button-ghost { background: transparent; padding: 0 10px; font-size: 13px; }
.full-width { width: 100%; }
.menu-button { display: none; border: 0; background: transparent; padding: 8px; cursor: pointer; }
.menu-button span { display: block; width: 22px; height: 2px; margin: 4px 0; background: var(--ink); }

.hero {
  width: min(1180px, calc(100% - 40px));
  min-height: 680px;
  margin: 0 auto;
  padding: 88px 0 76px;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 58px;
  align-items: center;
}

.eyebrow, .section-kicker {
  color: var(--green-deep);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.08em;
}
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 9px 13px; border: 1px solid rgba(101, 125, 77, .15); border-radius: 999px; background: rgba(234, 240, 222, .72); }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(140, 162, 103, .13); }

.hero h1 {
  max-width: 590px;
  margin: 30px 0 24px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(44px, 4.4vw, 66px);
  line-height: 1.2;
  letter-spacing: -0.045em;
  font-weight: 700;
}
.hero h1 em { color: var(--green-deep); font-style: normal; white-space: nowrap; }
.hero-description { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.hero-actions .button { min-height: 52px; padding: 0 25px; }
.desktop-icon { font-size: 17px; }
.hero-note { margin-top: 22px; display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: #918b7c; font-size: 11px; }
.hero-note i { width: 3px; height: 3px; border-radius: 50%; background: #b9b09d; }

.hero-visual { position: relative; min-width: 0; padding: 52px 0 45px; }
.lemon-sun { position: absolute; width: 230px; height: 230px; border-radius: 52% 48% 46% 54%; background: #f7cf4a; right: -75px; top: 0; opacity: .16; transform: rotate(-18deg); }
.app-window { position: relative; border: 1px solid rgba(255,255,255,.92); border-radius: 26px; overflow: hidden; background: rgba(255,255,255,.7); box-shadow: 0 36px 85px rgba(78, 73, 52, .2); transform: rotate(1.2deg); }
.app-window::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(71, 84, 56, .08); border-radius: inherit; }
.app-window img { display: block; width: 100%; }
.window-bar { height: 40px; padding: 0 14px; display: flex; align-items: center; justify-content: space-between; background: rgba(255, 254, 249, .96); border-bottom: 1px solid rgba(79, 78, 68, .08); font-size: 10px; color: #8f8b7f; }
.window-dots { display: flex; gap: 5px; }
.window-dots span { width: 7px; height: 7px; border-radius: 50%; background: #e9dfc9; }
.window-dots span:first-child { background: #f4cd55; }
.window-title { margin-left: 50px; }
.save-state { display: flex; align-items: center; gap: 6px; }
.save-state span { width: 6px; height: 6px; border-radius: 50%; background: #8aa266; }
.visual-label { position: absolute; z-index: 3; border: 1px solid rgba(255,255,255,.86); background: rgba(255,254,249,.9); backdrop-filter: blur(10px); box-shadow: var(--shadow-small); }
.visual-label-top { top: 18px; left: 26px; padding: 12px 17px; border-radius: 999px; font-size: 12px; transform: rotate(-2deg); }
.visual-label-bottom { right: -20px; bottom: 9px; min-width: 205px; padding: 13px 16px; border-radius: 19px; display: grid; grid-template-columns: 30px auto; align-items: center; gap: 10px; }
.tiny-lemon { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 10px; color: #ecbd2e; background: #fff4bd; }
.visual-label-bottom div { display: flex; align-items: baseline; gap: 8px; }
.visual-label-bottom small { color: #969082; font-size: 9px; }
.visual-label-bottom strong { font-size: 13px; }
.mini-progress { grid-column: 1 / -1; display: block; height: 4px; border-radius: 9px; background: #ece7da; overflow: hidden; }
.mini-progress i { display: block; width: 72%; height: 100%; border-radius: inherit; background: var(--yellow); }

.quiet-strip {
  min-height: 74px;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 19px;
  color: #777366;
  font-size: 13px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 251, 240, .72);
}
.quiet-strip i { color: #d2c9b3; font-style: normal; }

.home-explore { padding-bottom: 70px; }
.explore-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.explore-card { min-height: 270px; padding: 30px; display: flex; flex-direction: column; align-items: flex-start; border: 1px solid rgba(255,255,255,.86); border-radius: var(--radius-lg); background: rgba(255,255,255,.58); box-shadow: var(--shadow-small); transition: transform .22s ease, box-shadow .22s ease, background .22s ease; }
.explore-card:hover { transform: translateY(-5px); background: rgba(255,255,255,.88); box-shadow: var(--shadow); }
.explore-card-wide { grid-column: span 3; min-height: 310px; padding-right: min(42%, 470px); position: relative; overflow: hidden; background: linear-gradient(135deg, rgba(255,245,203,.78), rgba(255,255,255,.7) 58%, rgba(232,239,219,.8)); }
.explore-card-wide::after { content: "AI\A章节点评"; white-space: pre; position: absolute; right: 7%; top: 50%; transform: translateY(-50%) rotate(-4deg); color: rgba(96,116,73,.2); font-family: "Songti SC", serif; font-size: clamp(48px, 7vw, 86px); font-weight: 800; line-height: .95; text-align: center; }
.explore-card small { color: #a29b8a; font-size: 9px; font-weight: 700; letter-spacing: .15em; }
.explore-card h3 { margin: 13px 0 10px; font-family: "Songti SC", serif; font-size: 24px; }
.explore-card p { margin: 0 0 25px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.explore-card b { margin-top: auto; color: var(--green-deep); font-size: 11px; }
.explore-card b span, .text-link span { margin-left: 6px; transition: margin-left .2s ease; }
.explore-card:hover b span, .text-link:hover span { margin-left: 11px; }
.text-link { margin-top: 26px; display: inline-flex; align-items: center; color: var(--green-deep); font-size: 13px; font-weight: 700; }
.home-feature-preview { margin-bottom: 40px; }

.subpage-hero { width: min(1000px, calc(100% - 40px)); min-height: 480px; margin: 0 auto; padding: 118px 0 78px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.page-crumb { margin-bottom: 34px; display: flex; gap: 9px; align-items: center; color: #9a9384; font-size: 11px; }
.page-crumb a:hover { color: var(--green-deep); }
.page-crumb strong { color: #686358; font-weight: 600; }
.subpage-hero h1 { max-width: 900px; margin: 22px 0 20px; font-family: "Songti SC", "STSong", serif; font-size: clamp(44px, 6vw, 72px); font-weight: 700; line-height: 1.22; letter-spacing: -.035em; }
.subpage-hero h1 em { color: var(--green-deep); font-style: normal; }
.subpage-hero > p { max-width: 680px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.subpage .priority-feature { margin-top: 0; }
.together-page-section { margin-top: 0; }
.update-principles { padding-top: 90px; }
.principle-grid, .device-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.principle-card, .device-card { min-height: 220px; padding: 30px; border: 1px solid rgba(255,255,255,.86); border-radius: 24px; background: rgba(255,255,255,.6); box-shadow: var(--shadow-small); }
.principle-card > span, .device-card > span { color: var(--yellow-dark); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.principle-card h3, .device-card h3 { margin: 24px 0 11px; font-family: "Songti SC", serif; font-size: 23px; }
.principle-card p, .device-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.download-page-section, .pricing-page-section { padding-top: 10px; }
.device-notes { padding-top: 80px; }
.pricing-faq { padding-top: 40px; }
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { padding: 0 22px; border: 1px solid rgba(255,255,255,.86); border-radius: 18px; background: rgba(255,255,255,.6); box-shadow: 0 8px 25px rgba(82,73,46,.06); }
.faq-item summary { padding: 20px 0; cursor: pointer; font-weight: 700; font-size: 14px; }
.faq-item p { margin: -5px 0 22px; color: var(--muted); font-size: 12px; line-height: 1.8; }

.section { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 110px 0; }
.section-heading { max-width: 700px; margin: 0 auto 52px; text-align: center; }
.section-heading h2, .feature-copy h2, .together-heading h2, .download-copy h2, .final-cta h2 {
  margin: 15px 0 17px;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.25;
  letter-spacing: -0.025em;
}
.section-heading p, .together-heading p, .download-copy p { margin: 0; color: var(--muted); line-height: 1.8; }
.intro-section { padding-bottom: 70px; }
.priority-feature {
  width: min(1180px, calc(100% - 40px));
  margin-top: 42px;
  padding: 92px 58px;
  border: 1px solid rgba(255, 255, 255, .86);
  border-radius: 42px;
  background: linear-gradient(135deg, rgba(255, 245, 203, .62), rgba(255, 253, 246, .8) 52%, rgba(237, 242, 227, .76));
  box-shadow: var(--shadow);
}
.feature-overview { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mini-feature { padding: 30px; border: 1px solid rgba(255,255,255,.82); border-radius: var(--radius-lg); background: rgba(255,255,255,.54); box-shadow: var(--shadow-small); }
.mini-feature-icon { width: 44px; height: 44px; margin-bottom: 22px; display: grid; place-items: center; border-radius: 15px; font-family: serif; font-size: 20px; }
.soft-yellow { background: #fff1af; }
.soft-green { background: #e2ebd3; }
.soft-pink { background: var(--pink-soft); }
.mini-feature h3 { margin: 0 0 10px; font-size: 18px; }
.mini-feature p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }

.feature-story { min-height: 670px; display: grid; grid-template-columns: .83fr 1.17fr; gap: 78px; align-items: center; }
.feature-story-reverse { grid-template-columns: 1.15fr .85fr; }
.feature-story-reverse .feature-copy { order: 2; }
.feature-copy h2 { font-size: clamp(36px, 4vw, 52px); }
.feature-copy > p { color: var(--muted); line-height: 1.95; font-size: 15px; }
.check-list { padding: 0; margin: 27px 0 0; list-style: none; }
.check-list li { margin: 12px 0; padding-left: 27px; position: relative; color: #5f5d54; font-size: 13px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: -2px; width: 19px; height: 19px; display: grid; place-items: center; border-radius: 7px; background: var(--green-soft); color: var(--green-deep); font-size: 11px; font-weight: 800; }
.platform-preview { margin-top: 27px; display: grid; gap: 9px; }
.platform-preview span { height: 28px; position: relative; overflow: hidden; border-radius: 9px; background: rgba(255,255,255,.62); }
.platform-preview i { position: absolute; inset: 0 auto 0 0; width: var(--fit); border-radius: inherit; background: linear-gradient(90deg, rgba(244,201,63,.27), rgba(139,160,102,.3)); }
.platform-preview b { position: relative; z-index: 1; height: 100%; padding: 0 10px; display: flex; align-items: center; color: #777164; font-size: 9px; font-weight: 600; }
.feature-media { position: relative; }
.image-frame { padding: 12px; border: 1px solid rgba(255,255,255,.94); border-radius: 28px; background: rgba(255,255,255,.62); box-shadow: var(--shadow); }
.image-frame img { width: 100%; display: block; border-radius: 19px; }
.review-media { transform: rotate(.8deg); }
.score-card { position: absolute; right: -26px; bottom: -27px; min-width: 160px; padding: 15px 17px; display: grid; grid-template-columns: 1fr auto auto; gap: 6px; align-items: baseline; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,254,248,.92); backdrop-filter: blur(10px); box-shadow: var(--shadow-small); }
.score-card span { grid-column: 1 / -1; color: #7d786d; font-size: 10px; }
.score-card strong { color: var(--green-deep); font-size: 28px; }
.score-card small { color: #aaa28f; }

.story-pills { margin-top: 27px; display: flex; flex-wrap: wrap; gap: 9px; }
.story-pills span, .sound-list span { padding: 9px 13px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.5); color: #68645a; font-size: 11px; }
.workspace-demo { min-height: 460px; display: grid; grid-template-columns: 150px 1fr; overflow: hidden; border: 1px solid rgba(255,255,255,.92); border-radius: 28px; background: #fbfaf3; box-shadow: var(--shadow); transform: rotate(-1deg); }
.workspace-sidebar { padding: 23px 14px; background: #f0f4e8; border-right: 1px solid rgba(92, 110, 69, .1); }
.workspace-title { margin: 0 8px 21px; color: #5e6c4d; font-size: 12px; font-weight: 700; }
.workspace-sidebar button { width: 100%; margin: 4px 0; padding: 11px 10px; display: flex; justify-content: space-between; border: 0; border-radius: 11px; background: transparent; color: #77796c; font-size: 11px; text-align: left; }
.workspace-sidebar button.active { background: #fffdf7; color: #52643f; box-shadow: 0 5px 18px rgba(80,95,61,.08); }
.workspace-sidebar button span { opacity: .55; }
.workspace-content { padding: 24px; min-width: 0; }
.workspace-head { margin-bottom: 22px; display: flex; justify-content: space-between; align-items: center; }
.workspace-head span { font-family: "Songti SC", serif; font-size: 15px; font-weight: 700; }
.workspace-head small { color: #989284; font-size: 9px; }
.plot-card { margin: 12px 0; padding: 15px; display: grid; grid-template-columns: 22px 1fr 15px; gap: 10px; align-items: start; border: 1px solid rgba(95, 109, 72, .13); border-radius: 15px; background: #fffefa; box-shadow: 0 7px 20px rgba(75, 79, 55, .05); }
.plot-card.completed { opacity: .68; }
.plot-check { width: 18px; height: 18px; display: grid; place-items: center; border: 1px solid #a8b693; border-radius: 6px; color: var(--green-deep); font-size: 10px; }
.plot-card strong { font-size: 12px; }
.plot-card p { margin: 6px 0 0; color: #8c877c; font-size: 9px; line-height: 1.65; }
.drag-mark { color: #b2ae9f; font-size: 13px; }

.workspace-gallery { min-height: 530px; position: relative; display: flex; align-items: center; justify-content: flex-start; }
.workspace-main-shot { width: 72%; transform: rotate(-1deg); }
.workspace-main-shot img, .workspace-detail-shot img { display: block; width: 100%; }
.workspace-detail-shot { width: 52%; position: absolute; right: 0; bottom: -20px; padding: 9px; border: 1px solid rgba(255,255,255,.94); border-radius: 23px; background: rgba(255,255,255,.76); box-shadow: var(--shadow); transform: rotate(2deg); }
.workspace-detail-shot img { border-radius: 16px; }
.workspace-detail-shot span { position: absolute; right: 14px; bottom: 14px; padding: 9px 12px; border-radius: 999px; background: rgba(255, 249, 220, .92); color: #666156; font-size: 9px; box-shadow: 0 6px 18px rgba(61,57,45,.1); }

.ai-bridge-story { padding-top: 135px; }
.ai-context-media { max-width: 530px; margin-left: auto; }
.ai-context-media .image-frame { transform: rotate(1deg); }
.bridge-flow { margin-top: 27px; padding: 13px 14px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; border: 1px solid rgba(95,108,73,.1); border-radius: 16px; background: rgba(255,255,255,.52); }
.bridge-flow span { padding: 7px 9px; border-radius: 9px; background: var(--green-soft); color: #667451; font-size: 9px; }
.bridge-flow b { color: #b1a98f; font-size: 11px; font-weight: 400; }
.bridge-badge { position: absolute; left: -28px; bottom: 34px; padding: 12px 15px; display: flex; align-items: center; gap: 8px; border: 1px solid rgba(255,255,255,.9); border-radius: 15px; background: rgba(255,254,248,.94); box-shadow: var(--shadow-small); color: #646b55; font-size: 10px; }
.bridge-badge span { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 8px; background: var(--green-soft); color: var(--green-deep); font-weight: 800; }

.music-story { padding-top: 80px; }
.sound-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.music-float { position: absolute; left: 34px; right: 34px; bottom: -21px; padding: 12px 16px; display: grid; grid-template-columns: 38px 1fr auto; gap: 12px; align-items: center; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,254,249,.92); box-shadow: var(--shadow-small); }
.music-float button { width: 36px; height: 36px; border: 0; border-radius: 50%; background: var(--green); color: white; }
.music-float div { display: flex; flex-direction: column; }
.music-float small { color: #9a9487; font-size: 8px; }
.music-float strong { margin-top: 3px; font-size: 11px; }
.sound-wave { height: 23px; display: flex; align-items: center; gap: 3px; }
.sound-wave i { width: 3px; border-radius: 9px; background: #91a26f; animation: wave 1.1s ease-in-out infinite; }
.sound-wave i:nth-child(1) { height: 8px; }
.sound-wave i:nth-child(2) { height: 17px; animation-delay: -.3s; }
.sound-wave i:nth-child(3) { height: 23px; animation-delay: -.6s; }
.sound-wave i:nth-child(4) { height: 13px; animation-delay: -.2s; }
.sound-wave i:nth-child(5) { height: 7px; animation-delay: -.5s; }
@keyframes wave { 50% { transform: scaleY(.55); opacity: .65; } }

.together-section { width: min(1180px, calc(100% - 40px)); margin-top: 60px; padding: 100px 60px; border-radius: 42px; background: #eef2e5; position: relative; overflow: hidden; }
.together-section::before { content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%; right: -120px; top: -100px; background: rgba(244, 202, 68, .18); }
.together-heading { max-width: 670px; margin-bottom: 48px; position: relative; }
.feedback-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; position: relative; }
.feedback-card { padding: 25px; border: 1px solid rgba(255,255,255,.88); border-radius: 23px; background: rgba(255,255,255,.72); box-shadow: 0 14px 42px rgba(84, 94, 65, .08); }
.feedback-card-raised { transform: translateY(-14px); }
.feedback-meta { display: flex; align-items: center; gap: 10px; color: #858276; font-size: 10px; }
.avatar { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; font-family: serif; font-weight: 700; }
.avatar-pink { background: #f3dfda; }
.avatar-green { background: #dce8cd; }
.avatar-yellow { background: #fae8a6; }
.feedback-card blockquote { min-height: 88px; margin: 22px 0; font-family: "Songti SC", serif; font-size: 15px; line-height: 1.8; }
.update-result { padding: 14px; border-radius: 14px; background: rgba(228, 236, 214, .66); }
.update-result span { color: var(--green-deep); font-size: 10px; font-weight: 700; }
.update-result p { margin: 6px 0 0; color: #686b5c; font-size: 10px; line-height: 1.6; }
.feedback-submit-section { margin-top: 58px; padding: 34px; display: grid; grid-template-columns: .82fr 1.18fr; gap: 50px; align-items: center; position: relative; border: 1px solid rgba(255,255,255,.84); border-radius: 29px; background: rgba(255,253,247,.64); box-shadow: 0 16px 45px rgba(84,94,65,.08); }
.feedback-submit-copy h3 { margin: 12px 0 14px; font-family: "Songti SC", "STSong", serif; font-size: clamp(25px, 3vw, 34px); line-height: 1.38; letter-spacing: .02em; }
.feedback-submit-copy > p { margin: 0; max-width: 360px; color: #706f64; font-size: 13px; line-height: 1.85; }
.feedback-writing-note { margin-top: 24px; padding: 13px 14px; display: grid; grid-template-columns: 29px 1fr; gap: 9px; border-radius: 15px; background: rgba(234,240,222,.78); }
.feedback-writing-note span { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 10px; background: #fff9df; font-size: 14px; }
.feedback-writing-note p { margin: 0; color: #69705d; font-size: 10px; line-height: 1.65; }
.feedback-form { padding: 24px; border: 1px solid rgba(101,114,79,.13); border-radius: 22px; background: rgba(255,255,255,.82); box-shadow: 0 10px 30px rgba(77,83,62,.06); }
.feedback-form-head { margin-bottom: 21px; display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.feedback-form-head div { display: flex; flex-direction: column; gap: 5px; }
.feedback-form-head strong { color: #49493f; font-size: 15px; }
.feedback-form-head small { color: #959084; font-size: 10px; }
.feedback-form-head > span { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 10px; background: #fff1b1; color: #a88118; font-size: 13px; }
.feedback-field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 8px; }
.feedback-field > span { color: #625f55; font-size: 11px; font-weight: 700; }
.feedback-field em { margin-left: 5px; color: #aaa497; font-size: 9px; font-style: normal; font-weight: 400; }
.feedback-field input, .feedback-field select, .feedback-field textarea { width: 100%; border: 1px solid rgba(89,88,75,.15); border-radius: 12px; outline: none; background: #fffdf8; color: var(--ink); font: inherit; font-size: 12px; transition: border-color .18s ease, box-shadow .18s ease, background .18s ease; }
.feedback-field input, .feedback-field select { min-height: 42px; padding: 0 12px; }
.feedback-field select { cursor: pointer; }
.feedback-field textarea { min-height: 112px; padding: 11px 12px; resize: vertical; line-height: 1.7; }
.feedback-field input::placeholder, .feedback-field textarea::placeholder { color: #b4afa4; }
.feedback-field input:focus, .feedback-field select:focus, .feedback-field textarea:focus { border-color: rgba(125,147,91,.72); background: #fff; box-shadow: 0 0 0 4px rgba(140,162,103,.13); }
.feedback-contact-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px; align-items: end; }
.feedback-contact-row .feedback-field { margin-bottom: 0; }
.feedback-consent { min-height: 42px; padding-bottom: 2px; display: inline-flex; align-items: center; gap: 7px; color: #747166; font-size: 10px; white-space: nowrap; cursor: pointer; }
.feedback-consent input { width: 15px; height: 15px; margin: 0; accent-color: var(--green-deep); }
.feedback-honeypot { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.feedback-form-actions { margin-top: 20px; display: flex; flex-wrap: wrap; align-items: center; gap: 13px; }
.feedback-form-actions .button { min-height: 40px; padding: 0 17px; font-size: 12px; }
.feedback-form-actions .button:disabled { cursor: wait; opacity: .62; transform: none; }
.feedback-status { flex: 1 1 180px; margin: 0; color: #8e887d; font-size: 9px; line-height: 1.6; }
.feedback-status a { color: #6b8051; text-decoration: underline; text-underline-offset: 2px; }
.feedback-status.is-success { color: #5e7e48; }
.feedback-status.is-error { color: #b56553; }

.download-section { width: min(1180px, calc(100% - 40px)); }
.download-card { min-height: 490px; padding: 67px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 34px 70px; position: relative; overflow: hidden; border: 1px solid rgba(255,255,255,.86); border-radius: 42px; background: linear-gradient(135deg, #fff4c8 0%, #fffaf0 50%, #edf2e4 100%); box-shadow: var(--shadow); }
.download-lemon { position: absolute; width: 280px; height: 280px; left: -92px; bottom: -100px; opacity: .13; transform: rotate(-13deg); }
.download-lemon img { width: 100%; border-radius: 70px; }
.download-copy { position: relative; align-self: center; }
.download-copy h2 { font-size: clamp(35px, 4vw, 48px); }
.download-options { display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.platform-card { width: 100%; padding: 15px 16px; display: grid; grid-template-columns: 44px 1fr 30px; gap: 13px; align-items: center; border: 1px solid rgba(86,88,69,.1); border-radius: 18px; background: rgba(255,255,255,.7); text-align: left; cursor: pointer; transition: .2s ease; }
.platform-card:hover { transform: translateX(4px); background: #fff; box-shadow: var(--shadow-small); }
.platform-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; background: #eef1e6; color: #64764f; font-size: 20px; }
.apple-mark { font-size: 14px; }
.platform-card > span:nth-child(2) { display: flex; flex-direction: column; }
.platform-card small { color: #9a9488; font-size: 9px; }
.platform-card strong { margin-top: 4px; font-size: 13px; }
.platform-card b { color: #928c7c; font-weight: 400; text-align: center; }
.platform-card-pending { cursor: default; opacity: .74; }
.platform-card-pending:hover { transform: none; background: rgba(255,255,255,.7); box-shadow: none; }
.ipad-note { grid-column: 1 / -1; margin: 0; color: #8e897b; font-size: 10px; text-align: center; }

.pricing-section { padding-top: 75px; }
.pricing-grid { max-width: 830px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.price-card { padding: 32px; border: 1px solid rgba(255,255,255,.86); border-radius: 28px; background: rgba(255,255,255,.64); box-shadow: var(--shadow-small); }
.price-card-pro { position: relative; border-color: rgba(226, 184, 47, .38); background: #fff9de; transform: translateY(-10px); }
.popular-tag { position: absolute; right: 22px; top: -13px; padding: 7px 12px; border-radius: 999px; background: var(--yellow); font-size: 9px; font-weight: 700; }
.price-head { display: flex; flex-direction: column; }
.price-head span { font-family: "Songti SC", serif; font-size: 21px; font-weight: 700; }
.price-head small { margin-top: 5px; color: #969083; font-size: 10px; }
.price { margin: 27px 0 22px; display: flex; align-items: baseline; gap: 6px; }
.price strong { font-size: 36px; }
.price span { color: #969083; font-size: 10px; }
.price-card ul { min-height: 222px; margin: 0 0 26px; padding: 0; list-style: none; }
.price-card li { margin: 12px 0; padding-left: 22px; position: relative; color: #666259; font-size: 12px; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--green-deep); font-weight: 800; }
.price-card li.limit-item { color: #9a9487; }
.price-card li.limit-item::before { content: "—"; color: #b3ad9f; }
.price-stack { flex-wrap: wrap; }
.price-stack small { width: 100%; margin-top: 8px; color: var(--green-deep); font-size: 11px; font-weight: 700; }
.pricing-note { color: #a19b8d; font-size: 10px; text-align: center; }
.launch-offer { max-width: 830px; margin: 28px auto 22px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.launch-offer > div { padding: 22px; border: 1px solid rgba(224, 181, 45, .2); border-radius: 20px; background: rgba(255, 249, 220, .7); }
.launch-offer span { display: block; margin-bottom: 8px; color: var(--yellow-dark); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.launch-offer strong { display: block; font-family: "Songti SC", serif; font-size: 18px; line-height: 1.45; }
.launch-offer p { margin: 8px 0 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.pricing-legal-links { max-width: 830px; margin: 24px auto 0; padding: 22px 24px; border: 1px solid rgba(226,184,47,.24); border-radius: 20px; background: rgba(255,250,224,.62); text-align: center; }
.pricing-legal-links > strong { display: block; font-family: "Songti SC", serif; font-size: 16px; }
.pricing-legal-links > div { margin-top: 14px; display: flex; justify-content: center; flex-wrap: wrap; gap: 9px; }
.pricing-legal-links a { padding: 8px 12px; border: 1px solid rgba(190,154,42,.2); border-radius: 999px; background: rgba(255,255,255,.72); color: var(--green-deep); font-size: 10px; font-weight: 700; }
.pricing-legal-links p { margin: 13px 0 0; color: var(--muted); font-size: 10px; line-height: 1.7; }

.help-page-hero { min-height: 440px; }
.help-section { padding-top: 10px; }
.help-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.help-card { min-height: 245px; padding: 30px; display: flex; flex-direction: column; align-items: flex-start; border: 1px solid rgba(255,255,255,.86); border-radius: 26px; background: rgba(255,255,255,.62); box-shadow: var(--shadow-small); }
.help-card > span { color: var(--yellow-dark); font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.help-card h2 { margin: 20px 0 12px; font-family: "Songti SC", serif; font-size: 24px; }
.help-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.help-card .text-link { margin-top: auto; padding-top: 20px; }
.help-card .text-link b { margin-left: 7px; }
.support-panel { padding: 55px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; border: 1px solid rgba(255,255,255,.9); border-radius: 32px; background: linear-gradient(135deg, rgba(255,246,202,.72), rgba(239,244,229,.78)); box-shadow: var(--shadow-small); }
.support-panel h2 { margin: 12px 0; font-family: "Songti SC", serif; font-size: 34px; }
.support-panel p { max-width: 700px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.support-status { min-width: 205px; padding: 18px 20px; display: grid; grid-template-columns: 10px 1fr; gap: 4px 10px; align-items: center; border-radius: 18px; background: rgba(255,255,255,.7); }
.support-status > span { width: 9px; height: 9px; grid-row: 1 / 3; border-radius: 50%; background: var(--yellow); box-shadow: 0 0 0 5px rgba(245,203,69,.16); }
.support-status strong { font-size: 12px; }
.support-status small { color: #999284; font-size: 9px; }

.legal-hero { width: min(920px, calc(100% - 40px)); margin: 0 auto; padding: 100px 0 65px; }
.legal-hero .page-crumb { margin-bottom: 26px; }
.legal-hero h1 { margin: 20px 0 12px; font-family: "Songti SC", serif; font-size: clamp(40px, 5vw, 60px); }
.legal-hero > p { margin: 0; color: #958f82; font-size: 12px; }
.legal-draft-note { margin-top: 30px; padding: 20px 22px; display: grid; grid-template-columns: 90px 1fr; gap: 18px; border: 1px solid rgba(226,184,47,.26); border-radius: 18px; background: rgba(255,248,214,.7); }
.legal-draft-note strong { color: var(--yellow-dark); font-size: 11px; }
.legal-draft-note span { color: #69645a; font-size: 12px; line-height: 1.8; }
.legal-layout { width: min(1080px, calc(100% - 40px)); margin: 0 auto 110px; display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 38px; align-items: start; }
.legal-toc { padding: 22px; position: sticky; top: 112px; display: flex; flex-direction: column; gap: 2px; border: 1px solid rgba(255,255,255,.88); border-radius: 20px; background: rgba(255,255,255,.56); box-shadow: var(--shadow-small); }
.legal-toc strong { margin: 0 9px 12px; font-size: 12px; }
.legal-toc a { padding: 8px 9px; border-radius: 9px; color: #858073; font-size: 10px; line-height: 1.4; }
.legal-toc a:hover { color: var(--green-deep); background: var(--green-soft); }
.legal-document { padding: 48px 54px; border: 1px solid rgba(255,255,255,.9); border-radius: 30px; background: rgba(255,255,255,.7); box-shadow: var(--shadow-small); }
.legal-document section { scroll-margin-top: 115px; }
.legal-document section + section { margin-top: 45px; padding-top: 43px; border-top: 1px solid var(--line); }
.legal-document h2 { margin: 0 0 18px; font-family: "Songti SC", serif; font-size: 24px; }
.legal-document h3 { margin: 23px 0 8px; font-size: 14px; }
.legal-document p { margin: 12px 0 0; color: #666258; font-size: 13px; line-height: 2; }
.legal-document a { color: var(--green-deep); text-decoration: underline; text-underline-offset: 3px; }
.privacy-table { margin: 20px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; }
.privacy-table > div { padding: 15px 16px; display: grid; grid-template-columns: 150px 1fr; gap: 18px; background: rgba(255,253,246,.7); }
.privacy-table > div + div { border-top: 1px solid var(--line); }
.privacy-table strong { font-size: 11px; }
.privacy-table span { color: var(--muted); font-size: 11px; line-height: 1.6; }

.final-cta { width: min(960px, calc(100% - 40px)); margin: 35px auto 120px; padding: 75px 30px; display: flex; align-items: center; flex-direction: column; text-align: center; }
.final-cta img { width: 78px; height: 78px; border-radius: 24px; box-shadow: var(--shadow-small); }
.final-cta > span { margin-top: 19px; color: var(--green-deep); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.final-cta h2 { max-width: 600px; font-size: clamp(32px, 4vw, 46px); }
.final-cta .button { min-height: 52px; padding: 0 27px; }

.site-footer { width: min(1180px, calc(100% - 40px)); min-height: 145px; margin: 0 auto; padding: 28px 0; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 20px; border-top: 1px solid var(--line); }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand img { width: 42px; height: 42px; border-radius: 13px; }
.footer-brand div { display: flex; flex-direction: column; }
.footer-brand strong { font-family: "Songti SC", serif; }
.footer-brand small { margin-top: 5px; color: #9b9588; font-size: 9px; }
.footer-links { max-width: 720px; display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 10px 20px; color: #79756a; font-size: 11px; }
.text-button { padding: 0; border: 0; background: transparent; cursor: pointer; }
.site-footer > p { grid-column: 1 / -1; margin: 0; color: #b0aa9e; font-size: 9px; }

.sample-toast { position: fixed; left: 50%; bottom: 28px; z-index: 100; min-width: 280px; padding: 13px 16px; display: flex; align-items: center; gap: 12px; border: 1px solid rgba(255,255,255,.92); border-radius: 18px; background: rgba(255,253,247,.95); box-shadow: 0 18px 50px rgba(58,55,45,.18); backdrop-filter: blur(14px); opacity: 0; pointer-events: none; transform: translate(-50%, 18px); transition: .25s ease; }
.sample-toast.show { opacity: 1; transform: translate(-50%, 0); }
.sample-toast > span { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 12px; background: #fff1b0; }
.sample-toast p { margin: 0; display: flex; flex-direction: column; }
.sample-toast strong { font-size: 12px; }
.sample-toast small { margin-top: 3px; color: #8e887c; font-size: 9px; }

.reveal { opacity: 1; transform: none; }
.reveal-delay { transition-delay: .12s; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 940px) {
  .menu-button { display: block; order: 3; }
  .site-nav { display: none; width: 100%; padding: 12px; position: absolute; top: calc(100% + 8px); left: 0; flex-direction: column; align-items: stretch; gap: 2px; border: 1px solid rgba(255,255,255,.9); border-radius: 20px; background: rgba(255,252,244,.97); box-shadow: var(--shadow-small); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 14px; border-radius: 12px; }
  .site-nav a:hover, .site-nav a.active { background: var(--green-soft); }
  .site-nav a.active::after { display: none; }
  .header-actions { margin-left: auto; }
  .hero { grid-template-columns: 1fr; padding-top: 70px; text-align: center; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-visual { width: min(760px, 100%); margin: 0 auto; }
  .feature-story, .feature-story-reverse { grid-template-columns: 1fr; gap: 50px; }
  .feature-story-reverse .feature-copy { order: 0; }
  .feature-copy { max-width: 680px; }
  .feature-media, .workspace-demo { width: min(760px, 100%); margin: 0 auto; }
  .priority-feature { padding: 72px 45px; }
  .workspace-gallery { width: min(700px, 100%); margin: 0 auto; }
  .ai-context-media { margin: 0 auto; }
  .download-card { grid-template-columns: 1fr; }
  .download-copy { max-width: 650px; }
  .explore-grid { grid-template-columns: repeat(2, 1fr); }
  .explore-card-wide { grid-column: span 2; }
}

@media (max-width: 720px) {
  .site-header { width: calc(100% - 24px); height: 66px; top: 8px; margin-top: 8px; border-radius: 20px; }
  .brand img { width: 40px; height: 40px; }
  .brand-copy strong { font-size: 17px; }
  .header-actions .button-ghost { display: none; }
  .header-actions .button-small { min-height: 38px; padding: 0 14px; font-size: 11px; }
  .hero { width: calc(100% - 30px); min-height: auto; padding: 62px 0 55px; gap: 25px; }
  .hero h1 { margin-top: 23px; font-size: clamp(36px, 11vw, 48px); line-height: 1.25; }
  .hero h1 em { white-space: normal; }
  .hero-description { font-size: 14px; }
  .hero-actions { width: 100%; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-note { justify-content: center; }
  .hero-visual { padding: 35px 0; }
  .visual-label-top { left: -4px; top: 7px; }
  .visual-label-bottom { right: -4px; bottom: 0; min-width: 176px; }
  .window-bar { height: 32px; }
  .window-title { display: none; }
  .quiet-strip { gap: 10px; font-size: 10px; }
  .section { width: calc(100% - 30px); padding: 78px 0; }
  .priority-feature { width: calc(100% - 20px); margin-top: 20px; padding: 66px 20px; border-radius: 30px; }
  .section-heading { margin-bottom: 35px; }
  .section-heading h2, .feature-copy h2, .together-heading h2, .download-copy h2, .final-cta h2 { font-size: 34px; }
  .feature-overview, .feedback-grid, .feedback-submit-section, .pricing-grid, .explore-grid, .principle-grid, .device-grid, .help-grid, .launch-offer { grid-template-columns: 1fr; }
  .explore-card-wide { grid-column: auto; min-height: 330px; padding-right: 30px; padding-bottom: 120px; }
  .explore-card-wide::after { top: auto; right: 25px; bottom: 25px; transform: rotate(-4deg); font-size: 43px; }
  .mini-feature { padding: 24px; }
  .feature-story { min-height: auto; gap: 34px; }
  .feature-copy { text-align: left; }
  .score-card { right: -4px; bottom: -25px; }
  .workspace-demo { min-height: 380px; grid-template-columns: 103px 1fr; }
  .workspace-gallery { min-height: 450px; }
  .workspace-main-shot { width: 74%; }
  .workspace-detail-shot { width: 55%; right: -2px; bottom: 3px; }
  .workspace-detail-shot span { display: none; }
  .ai-bridge-story { padding-top: 95px; }
  .bridge-badge { left: -4px; bottom: 15px; }
  .workspace-sidebar { padding: 18px 8px; }
  .workspace-title { margin-left: 5px; }
  .workspace-sidebar button { padding: 9px 6px; font-size: 9px; }
  .workspace-content { padding: 17px 12px; }
  .plot-card { padding: 10px; grid-template-columns: 18px 1fr 10px; gap: 7px; }
  .plot-card strong { font-size: 10px; }
  .plot-card p { font-size: 8px; }
  .music-float { left: 15px; right: 15px; }
  .together-section { width: calc(100% - 20px); margin-top: 25px; padding: 65px 20px; border-radius: 30px; }
  .feedback-card-raised { transform: none; }
  .feedback-submit-section { margin-top: 34px; padding: 22px; gap: 28px; border-radius: 22px; }
  .feedback-contact-row { grid-template-columns: 1fr; gap: 2px; }
  .feedback-consent { min-height: 30px; padding: 0; }
  .download-section { width: calc(100% - 20px); }
  .download-card { padding: 55px 20px 35px; border-radius: 30px; }
  .download-copy { text-align: center; }
  .platform-card { grid-template-columns: 42px 1fr 24px; }
  .subpage-hero { min-height: 410px; padding: 82px 0 58px; }
  .subpage-hero h1 { font-size: 40px; }
  .subpage-hero > p { font-size: 13px; }
  .price-card-pro { transform: none; }
  .price-card ul { min-height: auto; }
  .support-panel { padding: 38px 24px; grid-template-columns: 1fr; }
  .support-status { min-width: 0; }
  .legal-hero { width: calc(100% - 30px); padding: 82px 0 50px; }
  .legal-draft-note { grid-template-columns: 1fr; gap: 7px; }
  .legal-layout { width: calc(100% - 24px); margin-bottom: 70px; grid-template-columns: 1fr; }
  .legal-toc { position: static; display: grid; grid-template-columns: repeat(2, 1fr); }
  .legal-toc strong { grid-column: 1 / -1; }
  .legal-document { padding: 32px 22px; border-radius: 24px; }
  .privacy-table > div { grid-template-columns: 1fr; gap: 5px; }
  .final-cta { margin-bottom: 75px; padding: 45px 10px; }
  .site-footer { grid-template-columns: 1fr; padding: 35px 0; }
  .footer-links { flex-wrap: wrap; gap: 14px; }
  .site-footer > p { grid-column: auto; }
}

@media (max-width: 430px) {
  .brand-copy small { display: none; }
  .header-actions .button-small { padding: 0 12px; }
  .hero h1 { font-size: 35px; }
  .eyebrow { font-size: 10px; }
  .quiet-strip i { display: none; }
  .quiet-strip span { width: calc(50% - 10px); text-align: center; }
  .workspace-demo { grid-template-columns: 88px 1fr; }
  .workspace-sidebar button span { display: none; }
  .workspace-content { padding: 14px 9px; }
  .plot-card p { display: none; }
  .plot-card { align-items: center; }
}